furuno2115serv

MARINE RADAR FR-2115/2125

c

FURUNO E L E C T R I C C O., LT D.

Yo u r L o c a l A g e n t / D e a l e r

9-52, Ashihara-cho, Nishinomiya, Japan 662 Te l e p h o n e : Te l e f a x :

0798-65-2111 0798-65-4200

FIRST EDITION : DEC 1998 All rights reserved.

Printed in Japan

PUB. No. SME-34640-A (KAOK)

FR-2115/2125

CONTENTS Chapter1. GENERAL 1.1Outline...........................................................................1-1 1.2 Boards & Major Components .....................................1-2 1.3 Specifications................................................................1-3

Chapter 2. BLOCK DESCRIPTION 2.1 Overview.......................................................................2-1 2.2 Block Diagram of Display Unit....................................2-2 Function of Each Board (Display Unit) ..........................2-3 Start-up Sequence ..........................................................2-5 ARPA start-up sequence.................................................2-6 Block Diagram of Display SPU Board ...........................2-7 Video Signal Flow .........................................................2-8 Block Diagram of SPU Board (Video Amplifier) ...........2-9 Auto Tuning Function ....................................................2-10 Tuning Indication...........................................................2-11 Manual Tuning...............................................................2-11 Tuning Circuit................................................................2-11 Echo averaging (EAV 1/2/3)...........................................2-12 Memories & Memory Frame Priority .............................2-13 Antenna on/off Control ..................................................2-14 Check of ARP and RP board Connection .......................2-15 ARP-23 vs. ARP-26.......................................................2-15 Simple ARPA block diagram .........................................2-16 ARPA block diagram .....................................................2-17 ARPA target acquisition and Tracking............................2-18 ARPA INITIAL SETTING MENU ................................2-19 Block Diagram of RP Board...........................................2-22 INPUT/OUTPUT Data on INT Board (03P9252)...........2-23 Sentences Receivable at J450 on INT-9170....................2-24 Radar and ARPA output signal from INT-9170 ..............2-25 Monitor signal from J449...............................................2-26 Power Supply Circuit (DC) ............................................2-27 Power Supply Circuit (AC) ............................................2-29

CONTENTS 2.3 Scanner Unit ................................................................ 2-31 General.......................................................................... 2-31 Block Diagram of Scanner Unit ..................................... 2-32

Chapter 3. ADJUSTMENT 3.1 Adjustment (Display Unit) .......................................... 3-2 Location of Major parts ................................................. 3-2 Adjustment of CRT........................................................ 3-5 3.2 Adjustment (Scanner Unit) ......................................... 3-15 FR-2125 (RTR-063) ...................................................... 3-17 FR-2115 (RTR-062) ...................................................... 3-21

Chapter 4. MAINTENANCE 4.1 Dip Switches................................................................. 4-2 4.2 Jumper Settings ........................................................... 4-3 4.3 LED Status .................................................................. 4-4 4.5 Notice on Replacing Major Parts................................ 4-8 4.6 Program Numbers ....................................................... 4-9 4.7 How to update system program .................................. 4-9 4.8 Alternation of Power Supply....................................... 4-11

Chapter 5. TROUBLESHOOTING 5.1 Outline ......................................................................... 5-1 5.2 Error Message .............................................................. 5-1 5.3 Troubleshooting Flow Charts....................................... 5-1

Exploded View ................................................................ D-1 Mechanical Parts List ................................................... M-1 Schematic Diagrams ..................................................... S-1 Electrical Parts List ....................................................... E-1

Chapter 1. GENERAL 1.1 Outline This manual provides the information necessary for the servicing and adjustment of the radars FR-2115 and FR-2125. The antenna unit uses a Log IF amplifier. The features are;


6 pulselengths enabling echo size on the screen to be similar in all ranges
Flash ROM enabling program update to use a PC
Non-interlace, high-resolution display (1024x1280 dots)
New microprocessing technology with high-speed high-density gate array
Radar mapping capability

(Lines and Marks can be entered without the RP board, Gyro and L/L data required)


New cast aluminum scanner gearbox
New series of streamlined radiators, fixing feeder waveguide not required at installation
Display unit separable into Monitor, Control Unit, and Processor Units
Stabilized antenna rotation
Improved short-range performance using shorter pulselength and higher repetition rate than before.

The table below shows the major specifications of each model. Functions

FR-2115

FR-2125

Maximum Range

72 NM(R-type) 96 NM(IMO type)

Program Number

0359149-1XX English




Tuning Voltage (displayed at manual tuning) RF Module

120 NM(R-type) 96 NM(IMO type)

 Japanese

2.0 V to 32 V RTR-062

Antenna Rotation

RTR-063

24 rpm or 42 rpm

Output Power

12 kW

25 kW

TX-HV Board

HV-9017 A

HV-9017 B

24/32 VDC : 21.6 to 41.6 V 110 VAC : 90 to 126 V 220 VAC : 198 to 253 V

Input Voltage (Ship’s Mains)

The major parts and P.C. Boards used in the display and scanner units are tabulated on the next page.

1-1

1.2 Boards & Major Components DISPLAY UNIT Board Name

FR-2115

SPU Board

FR-2125 03P9253

PTU (PWR) Board

DC : 03P9246, AC : 03P9245

FILTER Board TX-HV Board

DC : 03P9226, AC : LF-210 HV-9017A

HV-9017B

PANEL Board (in control head)

03P9255

PAL Board (in control head)

03P9254

PAR Board (in control head)

03P9256

INT Board

03P9252

Mother Board

03P9251

ARP Board (Optional ARP-26)

18P9002 B

RP Board (Optional RP-26)

14P0298

Card I/F Board (Optional RP-26)

14P0299

PDM Board

PDM-9025

Gyro Board (Optional GC-8)

64P1106 A

PM Board (Optional PM-30/50)

03P9225

CRT Unit

CDT2136B

SCANNER UNIT Board Name

FR-2115

FR-2125

MODULATOR Board

03P9244 A

03P9244 B

RFC Board

03P9243 A

03P9243 B

IF AMP Board

03P9232

INTERFACE Board

03P9242

Limitter

RU-9099

MIC Magnetron

RU-9253/RU-9371 MG5241

Circulator Scanner Motor

MG5436 RC-3686

D8G-516 (24 rpm)/D8G-571 (42 rpm)

Signal Cable

RW-4873

1-2

1.3 Specifications SCANNER UNIT ITEM

FR-2115

Radiator Type

FR-2125

Slotted Waveguide Array

Radiator Length Horizontal Beamwidth

4 ft (XN12AF)

6.5 ft (XN20AF)

8 ft (XN24AF)

1.8 deg.

1.23 deg.

0.95 deg.

Vertical Beamwidth Sidelobe Attenuation

20 deg. Within +10 deg. to –10 deg. of mainlobe

–28dB or less

Outside +10 deg. to –10 deg. of mainlobe

–32dB or less

Polarization

Horizontal

Antenna Rotation

approx. 24 rpm/approx. 42 rpm

Scanner Housing Structure Compass Safe Distance

Open Radiator

Standard

1.65 m

2.15 m

Steering

1.25 m

1.60 m

TRANSCEIVER ITEM Magnetron Frequency & Modulation Peak Output Power

FR-2115

FR-2125

MG5241

MG5436

9380 MHz to 9440 MHz, P0N (X band) 12 kW

25 kW

0.07 µs, approx. 3000 Hz (S1 : 0.125 nm to 1.5 nm) 0.15 µs, approx. 3000 Hz (S2 : 0. 5 nm to 3 nm) 0.3 µs, approx. 1500 Hz (M1 : 0.75 nm to 6 nm) Pulselength & Pulse Repetition Rate

0.5 µs, approx. 1000 Hz (M2 : 3 nm to 24 nm) 0.7 µs, approx. 1000 Hz (M3 : 3 nm to 24 nm) 1.2 µs, 1.2 µs, approx. 600 Hz (L : 12 nm to 48 nm) approx. 600 Hz (L : 12 nm to 48 nm) approx. 500 Hz (L : 72 nm ,R-type/ approx. 500 Hz (L : 120 nm R-type/ 96 nm ,IMO-type) 96 nm ,IMO-type)

Modulator

FET Switching

Duplexer

Circulator with diode limiter

Tuning

Automatic or Manual

Intermediate Frequency Bandwidth

60 MHz 25 MHz (0.07 µs, 0.15 µs, 0.3 µs), 3 MHz (0.5 µ, 0.7 µ, 1.2 µ)

1-3

DISPLAY ITEM

FR-2115

Picture Tube

FR-2125

PPI (Raster scan, Daylight display) IMO type; FR-2115/2125: 96 nm

Range Scale (nm) Range Ring lnterval Number of Rings Bearing Resolution

Non-IMO type; FR-2115 : 72 nm, FR-2125 : 120 nm 0.125

0.25

0.5

0.75

1

1.5

2

3

4

6

8

12

16

24

32

48

72

96

120

0.025

0.05

0.1

0.25

0.2

0.25

0.5

0.5

1

1

2

2

4

4

8

8

12

16

20

5

5

5

3

5

6

4

6

4

6

4

6

4

6

4

6

6

6

6

1.8 deg. (XN12AF), 1.23 deg. (XN20AF), 0.95 deg. (XN24AF)

Range Discrimination

Better than 20 m

Bearing Accuracy

+1 deg to –1 deg.

Minimum Range

Meets 35 m HSC requiments

Range Ring Accuracy

1 % of range or 15 m, whichever is the greater

VRM Accuracy

IEC-61162-1 port (two inputs, J450/J455) IEC-61162-1 output port (J450) : $RAOSD, $RARSD ARPA data output port (J454) : IEC-61162-1, $RATTM, ARP-26 required RS-232C port (input/output, J456) : System program updating Gyro port (input, J446) : AD100 format Speed Log port (input, J448) : Contact-closure signal I/O Ports

Alarm output (J452) : +12 V buzzer drive signal Remote Display port (two outputs, J442/J443) : TRU-HD, BP, TRU-TRIG, VIDEO EXT. ARPA port (output, J444) : ARPA-HD, ARPA-BP, ARPA-TRIG, ARPAVIDEO Interswitch port (J457/J458) : For RJ-7 Monitor port (J449) : For PC monitor, Buffer PCB required IEC-61162-1/NMEA 0183 Own ship’s position : GGA>RMC>RMA>GLL Speed : RMC>RMA>VTG>VHW Heading (True) : VHW Heading (Magnetic) : VHW

NAV Data Input

Course (Trne) : RMC>RMA>VTG Course (Magnetic) : VTG>RMC>RMA Waypoint (Range/Bearing) : RMB>BWC>BWR Time : ZDA Loran time difference : RMA>GLC>GTD Water depth : DPT>DBT>DBK>DBS Water temperature : MTW>MDA

Compass safety Distance

Standard

1.40 m

Steering

1.05 m

1-4

ENVIRONMENTAL CONDITIONS ITEM Ambient Temperature

FR-2115 Scanner Unit Display Unit

25 deg. to +70 deg. 15 deg. to +55 deg.

FR-2125

Humidity

Relative humidity 95% or less at +40 deg.

Vibration

IEC 945, Edition 3

POWER SUPPLY & POWER CONSUMPTION ITEM

FR-2115

AC Power Supply DC Power Supply Power Consumption

FR-2125 110 VAC : 90 to 126 V 220 VAC : 198 to 253 V

24/32 VDC : 21.6 V to 41.6 V

DC Set

230 W (no wind)/300 W (100 knots)

260 W (no wind)/330 W (100 knots)

AC Set

360 VA (no wind)/465 VA (100 knots)

410 VA (no wind)/515 VA (100 knots)

1-5

Chapter 2. BLOCK DESCRIPTION 2.1 Overview Outline

Figure 2.1

Simplified block diagram

TX The trigger pulse from the SPU (Processor) Board is delivered to the MODULATOR Board which outputs the signal to oscillate the magnetron, and then radar wave is emitted from the radiator. RX The 9.4 GHz echo signal received by the antenna is converted to 60 MHz signal by the MIC, amplified by IF Amplifier, and fed to the SPU (Processor) Board as a video signal. It is digitally processed and then displayed on the CRT. The SPU Board contains a video amplifier. Auto Plotter (optional) The following signals are applied from the SPU Board to the ARP-26 Board: Heading, Bearing pulse, Video, Trigger, Bearing in AD format, and Ship’s speed in IEC-61162. Target acquision and tracking are performed on the ARP Board, and displayed on the CRT. Target data includes target position, CPA, TCPA, Speed, and Course. Plotter (optional) Data such as latitude and longitude in IEC-61162 format is delivered from the SPU Board to the RP Board. Plotter data generated on the RP board is output to the SPU Board and processed to display them on the screen. The plotter menu is generated on the SPU Board.

2-1

2.2 Block Diagram of Display Unit To degauso coil

HD

MOTHER Board (03P9251)

INT Board(03P9252)

BP VIDEO

Buffer

Selection SW (Menu-Selection)

Buffer

Scanner Unit HD,BP, TRIG,VIDEO

MOTHER Board (03P9251)

SPU Board(03P9253) Color palette D/A CONV.

EXT HD

Buffer

EXT BP

Buffer

EXT TRIG

Buffer

Priority (layering)

RJ-7 or Main Radar EXT HD,EXT BP, EXT TRIG, EXT VIDEO

Video Amp. Level Adj.

Scrolling

Memory

Proeessor

H SYNC/ V SYNC/ DOT CLK

CPU

VRAM

CPU

Buffer

AGDC L/L, S/C

Buffer

Multiplexer

Buffer

D.P RAM

(Optional)

Buffer

Level Adj.

HD,BP

PNL Board(03P9255)To G/A on SPU

Photo Coupler

A/D CONV.

Front end

Card I/F Board (14P0299)

SPD CRS

SPD CRS

Noise Filter

CPU

D.P RAM

D.P RAM

D.S.P

MAIN CPU

Level CONV. (TTL RS232C)

Chart Card/ ERC Card/ RAM Card

Photo Coupler

AD-100

(Optional)

GYRO Board (64P1106)

(Optional) ARP Board(18P9002)

A/D CONV.

PWR Board

PM Board (03P9225)

HALL 1/2

+12 V

Magnetism Detector

Overcurrent Detector

POWER

(Optional) TO RF UNIT

Video

From ACRTC

HD,BP

VIDEO

GYROCOMPASS

Signal

A/D CONV.

Gate Array (G/A)

SPEED LOG

P.F. Signal from PWR Board

RP Board(14P0298)

VIDEO

NAV DATA

CRT

Buffer

Level Adj.

EXT VIDEO

H SYNC(64 kHz), V SYNC(60 Hz), DOT CLK(108.5 MHz)

TX HV

PM ON Regulator

Rectifier

Protector

AC:03P9245 DC:03P9246

Power

Degauss

PAL Board (03P9254) Switches (PM ON/OFF, Degauss)

PAR Board (03P9256) Switches (Radar Picture, Menu)

TB301

Trackball

DEGAUSS

(Optional)

DEGAUSS Board(PDM9025)

FR2115-SME-22

Ships Mains DC 24/32 V, AC 100/110/115 V or AC 220/230 V

Ships Mains AC 100/110/115 V or AC 220/230 V

2-2

Performance Monitor

Function of Each Board (Display Unit) Board Name

Function

SPU Board 03P9253

1) Contains a video amplitier circuit. (a) Applies GAIN, STC, FTC and IR to video signal and outputs to the A/D converter. (b) Adjusts video signal input level (adjusted by pot. VR140). (c) Changes STC curve according to the antenna height set on the Radar menu. (d) Echo Stretching 1. 2) Performs A/D conversion of video signal. 3) Echo averaging (EAV 1/2/3) 4) Constructs radar picture from HD, BP, TRIG, and VIDEO signals. 5) Controls keyboard. 6) Mixes data being fed from ARP and RP boards to display them on the screen. 7) Displays navigation data being fed from a navigator. 8) Reads and displays trackball, EBL, and VRM data. 9) Controls tuning circuit. 10) Outputs “degauss” signal to the DEGAUSS Board. 11) Outputs Tx trigger and pulselength signals to the antenna unit. 12) Backs up menu settings, radar map, tune voltage, tune Ind. voltage, and waypoint with the EEPROM (U10). 13) Echo Stretching 2/3. 14) Generates menus and radar maps. 15) Echo trailling. 16) Checks for the presence of ARP and RP boards at power-up.

ARP Board 18P9002

1) Compatible with latest ARP-23 hardware. 2) Converts GAIN-, STC-, FTC-, and I/R-processed video signal to quantized video (QV) and sends back to the SPU Board. 3) Performs automatic and manual target acquisition and tracking. 4) Detects HD, BP, TRIG, VIDEO, LOG and GYRO signal errors. 5) Calculates CPA and TCPA. 6) Detects land echo. 7) Outputs ARPA data to the SPU Board : Target No., R/B, CPA, TCPA, etc. 8) Processes trial maneuver.

RP Board 14P0298

1) Generates data (grid, own ship mark, mark, and ship's tracks, etc.) for the plotter display. 2) Backs up data such as ship's tracks and marks. 3) Reads and displays digitized charts. 4) Outputs plotter display data to the SPU Board. 5) Inputs/outputs data (track, marks etc.) from/to the RAM card.

CARD I/F Board 14P0299

INT Board 03P9252

1) Receptacles of ROM and RAM cards. 2) Used to stores and retrieves data to/from ROM and RAM card. 1) Outputs HD, BP, TRIG and VIDEO signals to a radar slave display. (J442/443, two output ports) 2) Receives HD, BP, TRIG and VIDEO signals from other radar. (J458) 3) Inputs/outputs RJ-7 signal. (J458/457) 4) Outputs ARPA data to the external equipment. (IEC-61162-2 , J454) 5) Outputs external buzzer signal. (J452) 6) Outputs V-SYNC, H-SYNC, R, G, B for a PC monitor or hard copier. A buffer circuit required. 7) Inputs speed log signal, contact-closure. (J448) 8) Outputs alarm signals, Buffer board required.

2-3

Board Name

Function

PNL Board 03P9255

1) 2) 3) 4)

PAL Board 03P9254

1) Includes ANT ON/OFF, Performance monitor ON/OFF, and degauss switches. 2) Includes CPU Fail indicator (LED).

PAR Board 03P9256

1)

TX-HV Board HV-9017

1) Supplies Tx high voltage to the antenna unit. 2) Contains overcurrent protector.

DEGAUSS Board PDM9025

1) Automatically degausses the screen at power-up. 2) Detects magnetism and automatically degausses every 20s. 3) Degausses the screen when DEGAUSS switch is pressed.

MOTHER Board 03P9251

1) 2) 3) 4)

GYRO CONVERTER Board 64P1106

1) Converts gyrocompass signal into AD format signal. 2) Outputs Max. 6 AD format signal (25 ms or 200 ms jumper selection, select 25 ms for radar and ARPA.)

PTU Board (AC) 03P9245

1) Outputs -12V, +12V, +140V (for CRT), +5V and +32V (for tuning cont.), and motor drive voltage. 2) Outputs Power Fail (PF) signal to the RP Board. 3) 110 VAC, 24 rpm : 03P9245A 110 VAC, 42 rpm : 03P9245C 220 VAC, 24 rpm : 03P9245D 220 VAC, 42 rpm : 03P9245F 4) Contains overcurrent protector for -12V,+12V, and +140V. 5) Contains abnormal input voltage detector. 110 VAC : Low voltage, 73 to 78 VAC; high voltage, 146 to 170 VAC 220 VAC : Low voltage, 130 to 144 VAC; high voltage, 260 to 288 VAC

PTU Board (DC) 03P9246

1) Outputs -12V, +12V, +140V (for CRT), +5V and +32V (for tuning cont.), and motor drive voltage. 2) Outputs Power Fail (PF) signal to the RP Board 3) DC 24/32 V, 24 rpm : 03P9246 A DC 24/32 V, 42 rpm : 03P9246 C 4) Contains overcurrent protector for -12V,+12V, and +140V. 5) Contains abnormal input voltage detector. Low voltage, 21.6 Vdc; high voltage, 41.6 Vdc

Color Monitor Assy. CDT-2136B PM Board 03P9255 optional

Outputs encoded data of EBL, VRM and trackball signals. Includes GAIN, STC, FTC, and BRIL volumes. Includes EBL ON/OFF, VRM ON/OFF, FUNC 1/2/3/4, and Range +/- keys. Reads PAL/PAR board status.

Keys: HL OFF, PANEL BRILL, ACQ, and menu keys

Connects each PCB. Includes a connector for the antenna unit. Includes a connector for the RJ-8. Includes a connector for the control head.

1)

No HV is generated when H Sync. Signal is input to the monitor circuit.

1)

Power supply circuit for the performance monitor

2-4

Start-up Sequence Radar start-up sequence

Process 1. The soft start circuit activates to protect the power ON/OFF relay contacts. 2. The input voltage monitor checks for abnormal voltage. When ship’s mains is abnormal the ON/OFF relay trips off. 3. The inverter comes on and outputs all line voltages. The LED comes on and the inverter goes off when overcurrent is detected. 4. ROM, RAM, I/O port, custom IC, AGDC and VRAM are initialized. 5. The system is initialized using EEPROM and DIP switch data. 6. The timer starts counting down from 3 minutes (time remaining for warm-up of magnetron). 7. Checks for the absence/presence of a gyro signal. 8. Checks for the absence/presence of the ARP and RP Boards. 9. The SPU Board starts operating. Note) When H-sync signal is not applied to the CRT unit, no HV is generated, resulting in nothing on the screen. 10. The bearing scale, countdown indication, etc. appear. 11. The screen is degaussed automatically. 3-minute warm-up can be skipped by pressing [ENTER] several times while pressing and holding down [HL OFF]. (Do not release this information to user.) 12. Three-minute warm-up ends. 13. The radar goes into stand-by. 14. Checks for the presence of the BP (Bearing Pulse) signal. 15. The tuning circuit goes into “short search mode.” 16. When the range is changed, the tuning circuit goes into “short search mode.” 17. Panel settings are written onto the EEPROM. 18. Time data are written onto the EEPROM.

2-5

ARPA start-up sequence

Power ON * A reset pulse is generated when +5 V line drops to about 4.2 V.

ARPA(18P9002)

(03P9253)

RADAR

Initializes DSP.

Initializes NAIN CPU.

Initializes SPU Board.

CR17 on pcb 18P9002 blinks every two seconds.

Initializes DSP RAM (between DSP and MAIN CPU).

Communicate with DPRAM on ARPA Board to confirm presence/absence of ARPA Board.

Waits for initialization of DSP RAM (between DSP and MAIN CPU). END

Initializes DSP RAM (between MAIN CPU and SPU).

No

END

No

Yes Starts up with no ARPA.

Yes

Yes

No

YES

CR1 on pcb 18P9002 blinks. Yes

FE starts operating. Monitors gyro and speed log signals.

Tx ON

No

Starts up with ARPA.

GYRO/LOG Alarm

OK Yes Tx ON

No

Normal Operation

Yes Monitors radar input signals (HD, BP, TRIG, VIDEO). Yes OK

No

The LED on ARPA Board lights

Display radar picture (radar signal processing) FR2115-SME-13

Figure 2.2

ARPA Start-up sequence

2-6

Max. brilliance : 0.7 Vpp 4 Vpp

P551 QV

C19

VIDEO

C14

TP4(VIDEO)

Video Selector R134

Video Amplifier

U43

A/D Converter REF Voltage Generator U35

MAX : 5 V, MIN : 0 V AC SEA VR GAIN VR A/C RAIN VR

B25 C25

Sampling I/F Rejection Noise Rejection INT TRIG

MAX : 5 V, MIN : 0 V

U44 03S9060

MAX : 5 V, MIN : 0 V

Echo Video Memory U24,26,28, 29,30

Priority

U33

A21 A22

TB XA TB XB

#73 #74

A23

TB YA

#75

A24

TB YB

#76

0.7 V (360 pulses,144Hz) C13

#14

PLL U37

#4

#14

PLL U46

#4

0V

A13

C8

TO RJ-7

C7

Color Paletle D/A Converter P/S Converter U34

P552 CRT VIDEO(R,G,B) 54.25 MHz

* + cursor generation

Coordinate Conversion (r, ) (X,Y)

TP7 (H SYNC)

U79:VlEVEL 1 U81:VlEVEL 3 U82:VlEVEL 5 U83:VlEVEL 7 U85:VlEVEL 9 U86:VlEVEL 11 U88:VlEVEL 13 Odd Level U79,81, 82,83,85, 86,88

Timing Adjuster & Divider #98

A30 A31 A32

To CRT

OSC

4V P552

TP8 (V SYNC)

Trigger Gen. Odd Echo Handling

C20

To CRT

A20

To CRT

C16

OPTION TRIGGER

C17

TX TRIGGER

A25

TUNING CONT.

4V 16.63ms

Echo Processing

Sampling I/F Rejection Noise Rejection

U27 #103

INT TRIG

#97

U45 03S9060

Sampling Clock

Echo Trailing Memory U25

CR7 FROM RJ-7

µs

15.63us

8 V to 12 V HEADING.P

Signal Processing, Echo Trailing, Echo Processing,

(Gate Array)

P551 BEARING

From RP-26 (Video)

Trigger Gen. Even Echo Handling

B23

P552

TRACKBALL

U72:VlEVEL 0 U73:VlEVEL 2 U74:VlEVEL 4 U75:VlEVEL 6 U76:VlEVEL 8 U77:VlEVEL 10 U78:VlEVEL 12 Even Level U72,73, 74,75,76, 77,78

40 MHz

#36

Y1

CR3 8192 pulses

#37 #47 #48

U15

U35

32 MHz

OSC

P551 GYRO DATA

C11

#26

GYRO CLOCK

C12

#25

Graphic Memory

#97

U45 CPU

From U35 #83

U16

CR4 To INS

TP5

ACRTC

#84

B5

B4

P551 From U35 #89

CR8 From INS

TP6

TP9

#83 From U94 #1

Flash ROM(8M) U11

CR5 KEY DATA

#79

B5 CR1

KEY CONT.

B4

#80

P552

CR6

NAV DATA INTPUT

C17

NAV DATA OUTTPUT

A17

#82 CR2

P551 TUNE IND

4 (50 MHz)

12.5 MHz

RAM

EEPROM

U5,7

U10 * Socket type At board replacement remove EEPROM and put on to new board.

Buffer U18,19

Character Generator U42

U1,3,4,6, 8,9

TP1,2

To Dual port RAM in ARP/RP

OSC

#83

TP3

Filter A17

#6 #7 #5 U40

STBY : 0.7 V, TX : About 3 V

U17 #75

SPU Board (03P9253)

R2/C1 FR2115-SME-23

Figure 2.3

Block Diagram of SPU Board

2-7

2-8

From RF Unit

IF IN

J417

A19 A20 A21

External radar or RJ-7

Main/remote display and Radar 1/2 selection

1

J414

MOTHER Board 03P9251

8

C5

A19 A20 A21

J458

J417

P417

about 4.5 Vpp

R134

TP3

about 4 Vpp

VIDEO SEL

R21

TP1

Q40,41

Q18,19

Figure 2.4

K2

+12 V

INT Board 03P9252

J457

P417 RF VIDEO

TP6

Video Signal

Q8,9

about 4 Vpp

Q22,26 OP VIDEO B

J443

J442 Q10,11 OP VIDEO A

RJ7 VIDEO

Q27,28

J444 Q37,38 ARPA VIDEO

C21 C22 B21

8

8

15

8

C21 C22 B21

J414 IF IN

C14

J551

MOTHER Board 03P9251

Slave display

Slave display

RJ7

External ARPA

When the radar is used as a remote display, no signal is output from External ARPA and RJ-7 ports.

The video signal from the SPU board to the ARP board is gain-, STC-, and A/C sea-adjusted.

R140

C14

P551

P551 A18

FR-2115-SME10E

Video Amp. (GAIN,A/C SEAand A/C RAIN Adjustment)

about 4 Vpp

TP12 03P9253

SPU Board

ARP Board

The figure below shows video signal flow. The video signal from the scanner unit and an external radar are adjusted in level by R21 and R134 on the INT board 03P9252 respectively so that the main bang level at TP6 on the INT board is 3.9 to 4.1 Vpp. The R140 on the SPU board is factory-adjusted so that the main bang level is 3.9 to 4.1 Vpp at TP12.

Video Signal Flow

Block Diagram of SPU Board (Video Amplifier) about 4 Vpp VIDEO IN

Buffer

Mix

A/C AUTO : OFF

R140 A/C AUTO : ON

Q9

Gate

Filter

about 4 Vpp (Adjust by R140) TP12

Q17

Buffer

Gate

Q11, Q12

U56

Inverter

Mix

Amp. & Buffer

Q28

Q46

Q44, 55, 56

VIDEO (To ARPA Board:P551 A18)

about 4.2 Vpp TP11

Gain & STC Control Q66, 67

A/C RAIN

Buffer

Echo stretch (range direction)

Amp.

CR75

Q65

Q60 ‘Q64

Q35, Q37

TP4

Video Contrast Selector U96

Log to Linear Converter

Amp.

Buffer

Selector

CR57, 59, 71, 72

Q13, 14, 21

Q22, 23, 15

U43

RF VIDEO (To AD Conv.)

TP13

U87 3.5V

TP9

Differential

Peaking

STC Buffer

Amp.

Gate

Q27

Q26

Q25, 52, 53

U93

U54

0 1us

One-shot

Echo stretch on/off U95

Gain Cont. Gain Cont. (short range) Q34 Q19/20

*not used

*Gain reduced when FTC is on.

U35(Gate Array)

SMPL T

QV VIDEO (From ARPA Board:P551 C19)

Video contrast (menu selection)

STC Curve

about 4.0 Vpp

STC in A/C AUTO mode

D/A Conv.

STC data memory

Q18

U68

U35

*Noise is controlled and gain lowered on ranges up to 6 mile.

A/C RAIN: -7 to 0 V

A/C AUTO (From SPU Board) GAIN: -7 to 0 V Conv.

STC VR Curve Generator

Conv. U100

U100 Q30, 32, 10, U92

A/C SEA: 0 to 5V

0 to 5 V 0 to 5 V

Ant. Height (menu selection)

1) Mixer (Q17): In A/C AUTO mode, the pulse, whose level is the same as the main bang, is mixed with the video signal. The falling edge of the pulse is coincident with the beginning of the video signal.

Antenna Height vs. STC Curve Low Antenna

2) Mixer (Q46): The output of Q17 is amplified in reverse polarity by Q28, and at the same time, differentiated and then amplified by Q27. The output of Q27 and Q28 is mixed so that the positive video signal without ac component is obtained. Mixer eliminates the DC component of the video signal, or outputs the ac component of the video signal. 3) Peaking (Q26): not used. To improve range discrimination on short ranges, add capacitor C228, 56 to 100 pF on the SPU board.

4.5 V High Antenna

0V Range

4) STC Curve: The STC curve is menu-selectable; "ANT HGT", INITIAL SETTING 1 and "CTR STC CURVE", INITIAL SETTING 4. The latter is determined the STC curve near screen center, up to about 10 us. 5) STC in A/C AUTO mode (Q18): A/C AUTO works more effectively, compared with the FR-2100 series. Under heavy rain, use AC AUTO rather than AC SEA, and reduce the gain setting. 6) Video constant (U96) : The video constant is selected in the initial setting 3 menu. Factory-setting is 3 for long range detection, Under snow, rain, and heavy sea, select either 1 or 2. 1: Wide dynamic range. Similar echo to FR-2100. 2: Middle dynamic range. 3: Narrow dynamic range, but high visual intensity.

Near STC Curve Selection Sharp Curve (H) Standard (M)

4.5 V

Gentle Curve (L)

0V 10 us

Range

Figure 2.5 @STC Curves FR2115-SME-10G

2-9

Auto Tuning Function The system provides auto tuning mode which eliminates the adjustment of the receiver for maximum echoes. The “Tune Initialization” is required after not only the installation but also the replacement of RF unit, magnetron, MIC, and SPU board, so that the tune control voltages for each pulse are memorized onto the EEPROM. The figure below illustrates how the tune initialization takes place. First, full search is performed using a long pulse to find the tuning point (a). Next, short search is performed using all pulses to find tuning points (b). After the initialization, the pulselength used before the tune initialization is selected. Full search: Varying tune control voltage (TUNE CONT) from about 5 V to 30 V, the maximum tune indicator voltage is found and that tune control voltage (a) is memorized. Short search: The tune control voltage changes between the tune voltage (a) plus and minus 2.5 V for fine tuning. When the radar is set from ST-BY to TX, short search is made twice. When the pulselength is changed, short search is made once.

Full search

about 32 V

Short search (b)

(a) Tuning control voltage

(b)

Tracking (b)

(b)

(b) Pulse length in use

(b)

Auto coarse tuning point

about 2 V

Time

Max. about 3 V Tuning indicator voltage Min. about 1 V Pulselength EEPROM backup

LP

LP

Auto and Man. coarse tuning pt.

M3

M2

M1

S2

S1

Max. Max. Max. Max. Max. Max. Tuning Ind. Tuning Ind. Tuning Ind. Tuning Ind. Tuning Ind. Tuning Ind. voltage voltage voltage voltage voltage voltage

Figure 2.6

Tune Initialization

2-10

FR2115-SME-14

Tuning Indication The tuning indicator extends more than 80% of its full length on all ranges at best tuning. The self-test result display reads the tune indicator voltage.

Manual Tuning When tuning mode is changed from auto to manual mode, the tuning control voltage (a) found in full search is selected. In manual tuning mode, the graphical tuning control voltage indicator appears under the tuning indicator. The minimum scale is 2 V and the maximum scale is 32 V.

Tuning Circuit Figure below shows the tuning circuit. Tune control voltage is output from P551, A25 on the SPU board. P551 TUNE ENC A.

B21

TUNE ENC B.

B22

U94

(From MOTHER Board)

ENCODER U44

GA U44

GA U35

D/A CONV. U62

F VT #10 #8 x1 0 to 5 V #3 C VT #12

x6

#14

U94

Figure 2.7

Tuning Circuit

2-11

SUM #1

P551 A25

TUNE CONT. (To MOTHER Board)

U94 FR2115-SME-10B

Echo averaging (EAV 1/2/3) Remarks on the echo-averaging feature Echo averaging is a useful feature when used properly. If used improperly, however, the result could be disastrous. Objective and principle of echo averaging The main objective of echo averaging is to discriminate targets (flocks of birds, other ships, fishing floats, etc.) hidden in sea clutter, and stably display long range targets (ship, buoy, island, etc.) which alternately appear and disappear on the screen. Normally, unstable echoes such as those from sea clutter and noise appear at random positions with every rotation of the antenna. To distinguish real target echoes from clutter, the picture is stored and averaged over successive picture frames. If an echo is solid and stable it is shown in its actual intensity. Unstable echoes are reduced in intensity. The following illustrates how echo averaging EAV 1/2/3 work.

Figure 2.8

Echo Averaging

2-12

Memories & Memory Frame Priority Memory capacity is 2048x2048 dots, radar display area is 1280x1024 dots, and radius of echo display area is 360 dots. 2048 dots

1280 dots

360 dots

1024 dots

2048 dots

FR-2115-SME-28

Figure 2.9 Memory Capacity and Display Area U24,U26,U28,U29,U30 (5 frames) Radar echo Echo trail Echo in alarm area

Each 3/4 of U8 and U9 (3 frames) Radar map

Each 3/4 of U4 and U6 (3 frames)

Radar mark no frame (data from RP) RP

Each 1/4 of U4,U6,U8 and U9 (2 frames) ARPA U1 and U3 (4 frames) Cursor Gyro Characters no frame Menu +Cursor Data Mask

+ Highest priority Figure 2.10 Priority of Each Frame

2-13

2-14

S1

ANT SW

ANT ON/OFF

17

17

G/A

U35

#46 #17

U20

#16 A5

P551

B19

B18

BP (From RF Unit)

#4

#18

U57

SPU Board 03P9253

3

2

J312

03P9255

J313

03P9254

P313

PANEL Board

PAL Bord

DJ1

J415

J417

J551

6

5

7

7

5

ANT. SPEED

6

5

J103

#1 #32

G/A U35

F/V Converter

U93

Comparator

Q94

Soft start control

CR94,Q97 Chopper

J103

J467

1,2 3,4

5

FR2115-SME-10C

*DC14 to 24 V(With ANT) DC30 V(With out ANT)

U92 Chopper Control

03P9245(PWR Board)

03P9252(INT Board)

U51

03P9253(SPU Board) #16

TX FH STBY FL

P417

A6

TX FH STBY FL

C8

A6

P551

Antenna on/off Control

03P9251

Figure 2.11

22

A5

J551

A17

A18

J412

MOTER Board

1) TX key pressed 2) #A6 of P551on the SPU board is “high” 3) #7 of J103 on the PWR board is “high” 4) 14 to 24 V derived from #1/#2 and #3/#4 of J103 on the PWR board

To rotate the antenna, the followings must be satisfied.

MOTOR(+), MOTOR(-) EFR-2115 EFR-2125

For TX/RX down ANT ON/OFF EFR-2135S EFR-2135SW EFR-2165DS EFR-2125W EFR-2155

TX Key

The SPU board produces the antenna on/off signal. The PWR board monitors the number of the bearing pulse from the scanner unit and changes motor control voltage to maintain the constant speed of antenna rotation. The voltage between #1/#2 and #3/#4 of J103 is about 30 VDC with the scanner unit disconnected.

Antenna on/off Control

Check of ARP and RP board Connection The system checks the connection of the ARP and RP board every power on. If the CPU on the SPU board fails to communicate with the ARPA or RP board, the related display does not appear on the screen, but also the ARP and/or RP line is not displayed on the self-test result display.

ARP-23 vs. ARP-26 The ARP-26 uses the latest hardware of the ARP-23 for FR-2100 series radars, 18P9002-2 having U44 of 18S9007. The boards level –1 and –2 having U44 of 18S9001 cannot be used for ARP-26. The software has been changed to improve the performance. The major functional differences are; 1)

Operational with 42 rpm scanner unit (ARP-23: 36 rpm)

2)

“Scenario” in compliance with HSC performance standards (no scenario)

3)

A maximum of 3 reference targets (one target)

4)

Variable width of automatic acquisition area from 0.5 to 1.0 nm (0.5 nm fixed )

5)

Guard zone alarm for both inward and outward violations (inward only)

6)

Vector display time selectable either after 1 min. or within 20 scans (after 1 min.)

7)

VBW and VHW speed data in IEC-61162-1 acceptable (not acceptable)

8)

TCPA having a minus sign when the ship already passed through the CPA. (always plus)

9)

ARPA alarm if watchdog timer signal from the ARP is not received by the SPU boards. (no alarm)

10) Target number of a lost target not being used until all target number are used once. (using target number of lost target)

2-15

Simple ARPA block diagram

2-16

ARPA block diagram TP12

HD TP4

+12 V TP11

BP

Noise blanker

-12 V TP10

TRIG

TP2

BP U52 PLL VCO

+5 V

FIFO U60

TP5 VIDEO

A/D Converter TP1

TP3 TP8

TP6 TP7 R103 R104 (MAX) (MAX) Video signal check

Comparator

Video Sweep Velocity Converter U59

TRIG Check BP check

HD check

LOG I/F

LOG Check

Gyro

GYRO I/F

GYRO Check

TP9(QV monitor) QV output

Memory for Echo Sampler U56 to 58

Echo Sampler

BP Counter Speed Log

CR32

Land Echo Detection Table ROM U64 CR9 (HD Alarm)

BUS I/F

Status Switch for Error Detection

BUS I/F

18S9007 U44 (Blinks every CR17 2 sec.)

CR12(TRIG Alarm) CR13(<1250 Hz) CR15(GYRO Alarm) CR16(LOG Alarm)

D.P.RAM U45,46

Latch U41

D.P.RAM U21,22

CR11(VIDEO Alarm)

CR14(Not Used) U42,47

FEDSP U35

CR10(BP Alarm)

REF OSC U27

ROM U40

DIP SW S1

MAIN CPU U2

RAM U36 to 39

OSC Y1 CR1 (Blinks randomly.) D.P.RAM U4,11

EEPROM U8

RAM U9,10

ROM U3

Latch U13

To SPU Board's DP BUS FR2115-SME-16

##

Figure 2.12

Block Diagram of ARP Board

2-17

ARPA target acquisition and Tracking 1. Conditions for manual acquisition The target can be acquired manually under the following conditions. 1) An echo from target must be received for three consecutive sweeps and scans within the acquisition area. 2) The target echo must be smaller than the and echo data (at the front end processor). 3) A target must be within the acquisition area : 0.2 to 32 nm. 4) The ARPA can acquire 30 targets. All 30 may be acquired manually, or 10 manually and 20 automatically. 5) No signal error (TRIG, HD, BP, VIDEO, gyro) shall be detected.

2. Conditions for automatic acquisition The target can be acquired manually under the following conditions. 1) An echo from target must be received for three consecutive sweeps, and seven consecutive scans within the acquisition area. 2) The target echo must be smaller than land echo data (at the front end processor). 3) The target must be within acquisition area: 0.1 to 32 nm (or 24 nm) depending on initial setting. Target echoes behind a land echo within the acquisition area cannot be acquired automatically. 4) 20 targets can be automatically acquired. 5) No signal error (TRIG, HD, BP, VIDEO, gyro) shall be detected.

3. Automatic tracking 1) A tracked target is judged as a lost target when no return is received for nine consecutive scans. When the system detects a lost target, “LOST TARGET” appears on the display and the ARPA symbol blinks. 2) A lost target will be reacquired and tracked when acquisition condition again becomes satisfactory. 3) Automatic tracking is discontinued when the target moves out of the acquisition range (less than 0.1 nm or greater than 32 nm). 4) An acquired and tracked target which moves behind a land echo will be declared as a lost target.

ARPA Land Discrimination A target is recognized as a landmark and not acquired if it is bigger than the preset value in range or bearing direction. The preset value is entered though the ARPA Initial setting menu.

2-18

ARPA INITIAL SETTING MENU Accessing Menu for ARPA Initialization. Press the [RADAR MENU] key five times while pressing and holding down the [HL KEY] key.

ARPA INITIAL SETTING Menu (Keying sequence : [PLOT MENU] [0] [0])

TARGET SELECT Selected is minimum size of target echoes which will be judged as land. An echo judged as land cannot be acquired manually or automatically nor is lost target status generated. This discrimination is especially necessary on the S-band radar where the horizontal beamwidth is greater than that of the X-band radar. The settings and their specifications are as follows : 0 : Greater than 600 meters 1 : Greater than 800 meters 2 : Greater than 1200 meters 3 : Greater than 1600 meters 4 : No limit QV SELECT Requires no local adjustment; however, it judges whether an echo is land or not by painting echoes in varying intensity or color. To enable QV SELECT, remove jumper JP11 on the 18P9002 board: 0 : All echoes painted brown (same as QV on previous radars) 1 : Brown color (non-land echoes) Yellow color (land echoes, azimuth direction) 2 : Brown color (non-land echoes) Yellow color (land echoes and target echoes behind land echoes) 3 : Brown color (all echoes) Yellow color (leading and trailing edges of all echoes)

2-19

TARGET OUTPUT DATA Output setting of “RATTM” data, output by J454 on the INT Board. OFF : “RATTM” data not output. REL : “RATTM” data output. Target course shown in relative bearing. TRUE : “RATTM” data output. Target course shown in true bearing. DISP CPA,TCPA Selects wether CPA and TCPA are displayed or not on the screen. START TIME TARGET VECT Selects time to allow the vector to appear on the screen after the acquition 1 MIN: The vector appears on the screen 1 minute after the acquisition. 20 SCANS: The vector appears on the screen 20 scans after the acquisition. (about 50 seconds: 24 rpm, about 30 seconds: 42 rpm) TARGET DATA Course in the target data can be displayed in relative or true mode when the relative vector is selected.

INPUT SIGNAL CHECK [INPUT SIG CHECK 1]

(Keying sequence : [PLOT MENU] [0] [8]) HD = OK

ERR (No heading signal input to ARPA Board for 10 seconds)

BP = OK T = OK V = OK TGT SEL = 1 LOG PULSE = 200P LOG SPEED = 21.0kt

ERR (No bearing signal input to ARPABoard for 10 seconds) ERR (No trigger signal input to ARPABoard for 10 seconds) ERR (No video signal input to ARPA Board for 60 seconds) Setting on AUTO PLOT INITIAL SETTING menu Log pulse setting on RADAR INITIAL SETTING 1 menu Calculated speed using contact closure signal

MAN SPEED = GYRO = 239.9 SET =

.

DRIFT =

.

.

kt Manually entered speed on the radar [FUNCTION] menu AD100 format gyro data being received “Set” setting on AUTO PLOT 2 menu.

kt

HD ALIGN = 000.0

“Drift” setting on AUTO PLOT 2 menu. Heading alignment value entered on RADAR INITIAL SETTING 1 menu.

CPU1 COUNTER = 1636 Counts up by five every five second if CPU1 is normal. CPU1 STATUS = 0000

Shows CPU1 status.

0

if normal.

CPU2 COUNTER = 1433 Counts up by 5 every five seconds if CPU2 is normal.

2-20

CPU2 STATUS = 0000

Shows CPU2 status.

LOG SENSOR

Log sensor type.

0

if normal.

EXT SPEED

IEC-61162 serial speed data being received; VTG/VHW/VBW If no serial data, xxx.x appears.

EXT COURSE

IEC-61162 serial bearing data being received; VTG/VHW/VBW

:KHQ#VSHHG#GDWD#LV#EHLQJ#IHG#IURP#D#VSHHG#ORJ#RU#HQWHUHG#PDQXDOO\/ # # # # # # # # # # # # # # # # # # # # # # # # # # WKH#FRXUVH#GDWD#LQ#9+:#LV#XVHG1

[INPUT SIG CHECK2]

(Keying sequence : [PLOT MENU] [0] [8] [0]) No. 1 = 1234

Echo count at front end processor. If “0” or “2000 or higher” is dispalyed, adjust the video level with VR103 on the ARP Board. Replace ARP Board if the value does not change at the adjustment. 7R#FKHFN#WKH#IURQW#HQG/#URWDWH#WKH#JDLQ#FRQWURO#NQRE#IURP#IXOO\#FZ#WR IXOO\#FFZ#DQG#UHDG#WKH#HFKR#FRXQW1#,I#WKH#QXPEHU#GHFUHDVHV/#WKH#IURQW HQG#IXQFWLRQV#QRUPDO1

No. 2 = 0362

Number of echoes to be received by the DSP. If the number is not the same as that of No. 1, the gain setting must be decreased. The DSP overloads receiving many echoes.

No. 3 = 0000

“0” indicates normal. For other than of “0” replace the ARP Board.

MIN HIT = 3

“3” indicates normal.

SCAN = 240

Heading signal input interval in resolution of 0.01 sec. (240=2.4 sec)

FE STATUS = 0000

Front end processor status. Normal if “0”

AUTO = 07

Number of automatically acquired targets being tracked.

MAN = 03

Number of manually acquired targets being tracked.

LOST = 01

Number of lost targets.

2-21

Block Diagram of RP Board The RP System program is stored on the flash POM, U3 and the program update is performed by using the program card. The card must be inserted into the upper slot. The CR1 on the RP board lights when the program is replaced with new one. RP marks are generated in the following VRAMs or frames on the RP board respectively, and sent to the SPU board. 1) Track, Mark, and Depth line, etc.; Uses frames 1 (R:U51), 2 (G:U52) and 3 (B:U53) 2) Grid; uses frames 3 (U53) and 4 (U50) 3) Counter line, and coated land area; uses frame 5 (U49) Note that waypoint and nav line data is memorized by the SPU board.

P.F (Activated by H)

Power Fail U15

DIP SW

CR1 INT 2 (PF) INT 0 (VSYNC)

CPU (FR-30)

Address & Data Bus

U13 x4(50 MHz) INT 1

(DPRAM)

IF Board 14P0299 Memory Card (4 M bytes)

SRAM 256 K bytes U8,9

Battery Back-up U5

To SPU Board (HSYNC, VSYNC,CLK)

*Memory for Track & Mark

Real Time Clock U1

Dual Port RAM RAM 8 K bytes U4 Buffer U22,23,27, 30,31,32

*Working area for running program

Flash Memory 1M bytes U3

OSC 12.5 MHz U17

To SPU Board (Communication Data)

DRAM 2 M bytes U2

Addres & Data Multiplexer U28,29 OSC U16 32 MHz

AGDC 2 Controller U15

Character Gen. U33 *(not used)

AGDC 2 U14

Addres & Data Multiplexer U18,19,20,24,25,26,35 VRAM 4 M bits (5 frames) U49 ‘53 Horizontal Scroll ASIC U36

I/O Port U21

FR2115-SME-18

Figure 2.13

Block Diagram of RP Board

2-22

To SPU Board (Video Data)

INPUT/OUTPUT Data on INT Board (03P9252) Port Name I; input,

Equipment

Signal Name

Signal Format

Slave display

TRUE-TRIG, VIDEO ,TRU-HD, BP

Radars having slave func-tion

Timing between TRU-TRIG and VIDEO adjusted, HD adjusted, BP:360 pulse/rotation.

External ARPA

ARPA-TRIG, VIDEO ,ARPA-HD, BP

Other make’s ARPA

Timing between ARPA-TRIG and VIDEO adjusted on ARPA, HD adjusted BP:360 pulse/ rotation.

HDG

AD10 format, 25 msec

GC-1/2/6/7/8 AD-10/10S/100

Generating HM, NU/TM modes, True EBL, True vector(E-PLOT), signal processing 1/2/3, True echo trail, ARP-26.

J448 (I)

Speed

Contact closure (200 or 400 pulses)

DS-30/70 CI-30/60/80 GP-500 GP-500MK2

Ship’s speed data, TM mode, True vector (E-PLOT), signal processing 1/2/3, True echo trail, ARP-26.

J449 (O)

Remote display

R, G, B, H-SYNC, V-SYNC

Monitor,Printer

Buffer Board (03P9229) required

O: output J442 (O) J443 (O) J444 (O)

J446 (I)

J450 (I/O)

Nav data

NMEA0183 V2.0 (Current Loop)

Remarks

Connectable

I:Navaid; GP-70MK2 GP-80 GP-500MK2

I:L/L, Speed/Course, L/L of +cursor, Dated & Time, Current , Depth, etc.

O:PC

O:RSD,OSD

Buzzer

150 mA max.

IEC 61162 (RS-422 Level)

J452 (O)

External buzzer

J453 (I)

Analog

Analog data

J454 (O)

ARPA data

NMEA0183, V2.0 (RS-422 Level)

+5 V

Not used GD-551, PC

$RATTM (ARPA Tracking Target Data)

INS

Receiving VHW/VBW from DS-30/ 50 etc., HDT, HDM and HDG. For program update

NMEA0183, V2.0 J455 (I)

INS data

(Current Loop or RS-422 Level)

J456 (I/O)

RS-232C

RS-232C level

PC

J457 (I/O)

RJ-7

RJ-7 Input/Output

RJ-7

RJ-7

TRUE-TRIG, VIDEO ,TRU-HD, BP

RJ-7 or Radar having output for slave display

+5 V, -12 V, +12 V

Additional Circuit e.g. Buffer Board

J458 (I)

J463 (O)

I/F Power Supply

2-23

Timing between TRU-TRIG and VIDEO adjusted, HD adjusted, BP:360 pulse/rotation. +5 V: 100 mA max. +12 V: 200 mA max. -12 V: 200 mA max.

Sentences Receivable at J450 on INT-9170 Data to be displayed Sentence

OS & Cursor Position

BWC BWR

RNG & BRG to WPT

SPD

Water Temp.

X X

RMB VTG

X X

X

X

X

X

X

X

X

X X

ARP-26 External WPT

X

MTW

RMC

ARP-26 SPD

X

VBW VHW RMA

Date & Time

X

DPT DBT DBK DBS GGA GLL

Water Depth

ZDA

X

2-24

Radar and ARPA output signal from INT-9170 (J442, J443 and J444) TRIG Signal (TRIG) Polarity/Voltage : Positive, +12 V Pulselength : 4 µs (J444) 5 to 10 µs (J442/J443)

VIDEO Signal (VIDEO) Polarity/Voltage : Negative, 4 Vpp Characteristic : Input of amplifier GAIN/STC : Not controlled

BEARING Signal (BP) Pulse : 360 pulses/one ant. rotation Polarity/Voltage : Positive, +12 V Duty Cycle : 50%

20%

HEADING Signal (HD) Polarity/Voltage : Negative, +12 to 0 V Timing : Negative going edge

2-25

Monitor signal from J449 (requires buffer circuit) 1. CRT required (non-interlace)

370 mm(1280 dots)

275 mm (720 dots)

295 mm (1024 dots)

2. Video signal

H - sync signal 63.974 kHz (15.63 us), 1696 dots 1.18 us,128 dots 0.59 us, 64 dots 11.80 us,1280 dots

2.06 us, 224 dots

Video signal

V-sync signal 60.013 Hz (16.66 ms) ,1066 dots 47 us, 3 dots 16 us, 1 dots 16.00 ms,1024 dots

593 us, 38 dots

Video signal

FR2115-SME-11

2-26

Power Supply Circuit (DC) DC PWR Board (03P9246) The PWR board contains a main-inverter, a sub-inverter, and protectors. The main-inverter produces +24 V and +32 V (for scanner motor), while the sub-inverter produces –12 V, +12 V, +32 V, and +140 V from +24 V, output of the main-inverter. +5 V is generated by chopping +24 V. Power fail (P.F.) signal generator outputs “High” signal normally and “Low” signal when the main-inverter fails. +24 V is adjusted by VR51. Main-inverter: With the POWER switch pressed, +12 V regulator, Q1 turns on, and over- and low-voltage protectors and switching regulator controller are powered up. The protector U1 activates when ship’s main is lower than 19.5 VDC and higher than 42 to 46 VDC. The switching frequency is adjusted by VR1. Sub-inverter: The sub-inverter produces –12 V, +12 V, +32 V, and +140 V from +24 V, the output of the main-inverter. These lines are not stabilized, but the +24 V line is stabilized by the main-inverter. The switching frequency is adjusted by VR71. Protector: Over-current detector U91in the scanner motor power line (ANT MOTOR line) activates when the current is 6 A or more for 0.8 seconds. The short circuit protector U72 operates when +140 V line is short-circuited. The output from the U72 is latched by Q33 and then send to the switching regulator controller U11. Power for Scanner Motor: Rectified +32 VDC is applied to the scanner motor through the ANT MOTOR line, MOTOR(+) and MOTOR(-). The F/V (Frequency to Voltage) converter U93 receives bearing pulses (BP) from the scanner unit and outputs DC signal depending on the frequency received. The comparator Q94 compares the output of the F/V converter with the antenna speed data, 24 rpm or 42 rpm. If the antenna speed is lower or higher than the rating, the comparator outputs the signal to control the scanner motor supply voltage. Thus, the motor rotates stably. The VR91 adjusts the antenna rotation to 24 rpm (no adjuster for 42 rpm). The number of the antenna rotation can be read on the self-test menu. The table below summarizes how to select the antenna speed data. Rotation

JP91

JP92

R98

Menu selection

24 rpm

Removed

Removed

4.7 k ohms

Disregarding menu setting

42 rpm

Removed

Connected

1.2 k ohms

Ant. revolution, Radar 3 menu; H

2-27

2-28

Power Switch

3

1

J102

J101 1,2, Ship's Mains 3,4 5.6, 24/32 Vdc 7,8

Over and low Voltage Protector U1

+12V Reguletor Q1

Input Filter C1,C2,C3

Low/High Voltage Sig.

Q11~14

Driver

VR1 (Main-inverter freq adjustor)

P.F. Sig. Generator Q81,U33

Switching Regulator Controller U11

Smoothing Circuit

Voltage Protector Latch Q33

CR51

Q71,72

T71

J103

J103

Overcurrent Detector U81

Overcurrent Detector U91

7

5

6

1

FR2115-SME-27B

J105 10

J107

J105 4,5

J103 1,2 3,4

J103

VR91 (24 rpm adjustor)

Soft Start Control

Q94

Comparator

H or L

F/V Converter U93

CR81~86

Sub-inverter

Chopper Control U92

VR71 (Sub-inverter freq adjustor)

Switching Regulator Controller U71

Driver

Short-circuit Protector U72

Chopper Control

Chopper

U61,CR61

CR94,Q97

CR52 +24 V

Chopper

+32 V

VR51 (+24 V adjustor)

Voltage Detector U51

T1

Main-inverter

DC PWR Board (03P9256)

P.F

+140 V +32 V +12 V -12 V

+24 V

+5 V

MOTOR(+) MOTOR(-)

ANT.ON/OFF *TX : H ST-BY : L

ANT.SPEED *Menu-Selection Hight Speed : H

B.P 24 rpm(144 Hz) 48 rpm(250 Hz)

Power Supply Circuit (AC) AC PWR Board (03P9245) The PWR board contains a main-inverter, a sub-inverter, and protectors. The main-inverter produces +24 V and +32 V (for scanner motor), while the sub-inverter produces –12 V, +12 V, +32 V, and +140 V from +24 V, output of the main-inverter. +5 V is generated by chopping +24V. Power fail (P.F.) signal generator outputs “High” signal normally and “Low” signal when the main-inverter fails. The RP data is backed-up when the P.F. signal is received. +24 V is adjusted by VR51. Main-inverter: With the POWER switch pressed, +12 V regulator, Q1 turns on, and over-voltage and lowvoltage protector, relay drive circuit, and switching regulator controller are powered up. The protector U1 activates when ship’s main is lower than 85 VAC and higher than 135 to 150 VAC. If ship’s mains is higher than 135 to 150 VAC, the relay in the input line, K1 is turned off by the signal from the protector U1, and no power is supplied to the main-inverter. The switching frequency is adjusted by VR1. A rush current protector Q1 and R2 prevents rush current from being flow into smoothing capacitors C11 and C12. When the smoothing capacitors are charged to the rated voltage, the main inverter starts oscillating. The output of the T1 turns on triac Q1 and the R2 10 ohms, 5 W is short-circuited. Ship’s mains 110 VAC or 220 VAC is jumper selectable as show in the table below. Smoothing capacitors C11 and C12 are charged by 100 to 170 VDC respectively. +5 V is generated from 24 V by a chopper IC. Ship’s Mains

JP1

JP2

JP3

JP4

Fuse

110 VAC

Connected

Connected

Connected

Removed

10 A

220 VAC

Removed

Removed

Removed

Connected

5 A

Sub-inverter: The sub-inverter produces –12 V, +12 V, +32 V, and +140 V from +24 V, output of the maininverter. These lines are not stabilized, but the +24 V line is stabilized by the main-inverter. The switching frequency is adjusted by VR71. Protector: Over-current detector U91in the scanner motor power line (ANT MOTOR line) activates when the current is 6 A or more for 0.8 seconds. The short circuit protector U72 operates when +140 V line is short-circuited. The output from the U72 is latched by Q33 and then send to the switching regulator controller U11. Power for Scanner Motor: Rectified +32 VDC is applied to the scanner motor through the ANT MOTOR line, MOTOR(+) and MOTOR(-). The F/V (Frequency to Voltage) converter U93 receives bearing pulses (BP) from the scanner unit and outputs DC signal depending on the frequency received. The comparator Q94 compares the output of the F/V converter with the antenna speed data, 24 rpm or 42 rpm. If the antenna speed is lower or higher than the rating, the comparator outputs the signal to control the scanner motor supply voltage. Thus, the motor rotates stably. The VR91 adjusts the antenna rotation to 24 rpm (no adjuster for 42 rpm). The number of the antenna rotation can be read on the self-test menu. The table below summarizes how to select the antenna speed data. Rotation

JP91

JP92

R98

Menu selection

24 rpm

Removed

Removed

4.7 k ohms

Disregarding menu setting

42 rpm

Removed

Connected

1.2 k ohms

Ant. revolution, Radar 3 menu; H

2-29

2-30

Power Switch

Ship's Mains 100/110/115 220/230 VAC

8

7

J102

5.6

1,2

J101

Over -and low- Voltage Protector U1

+12 V Regulator Q21

Input Filter L1,C3,C4

K1

Relay

Rush Current Protector Q1

Voltage Protector Latch Q24

Low Voltage Sig.

High Voltage Sig.

ON : +12 V ON : +12 V

Relay Driver Q26

CR2

Q11,12

Driver

P.F. Sig. Generator Q81,U33

VR1 (Main-inverter freq adjustor)

Switching Regulator Controller U31

110 or 220 VAC

Input voltage Selector

Smoothing Circuit Q1

Voltage Protector Latch Q36

CR51

Q71,72

Driver

T71

J103

J103

Overcurrent Detector U81

Overcurrent Detector U91

7

5

6

1

FR2115-SME-27

J105 10

J107

J105 4,5

J103 1,2 3,4

J103

VR91 (24 rpm adjustor)

Soft Start Control

Q94

Comparator

H or L

F/V Converter U93

CR81~86

Sub-inverter

Chopper Control U92

VR71 (Sub-inverter freq adjustor)

Switching Regulator Controller U71

Short-circuit Protector U72

Chopper Control

Chopper

U61,CR61

CR94,Q97

CR52 +24 V

Chopper

+32 V

VR51 (+24 V adjustor)

Voltage Detector U51

T1

Main-inverter

AC PWR Boaed (03P9245)

P.F

+140 V +32 V +12 V -12 V

+24 V

+5 V

MOTOR(+) MOTOR(-)

ANT. ON/OFF TX : H ST-BY : L

ANT.SPEED Menu-Selection Hight Speed : H

B.P 24 rpm(144 Hz) 48 rpm(250 Hz)

2.3 Scanner Unit General New cast aluminum scanner gearbox and new series of streamlined antenna are employed on the FR-2115 and FR-2125 radars. These are not compatible with the traditional Furuno scanner gearbox and radiator used for a long period. The mounting dimensions are remained unchanged. Radiator A feeder waveguide is built-in the radiator XN-12 AF, XN-20 AF and XN-24 AF for easeinstallation. The XN-20 AF and XN-24 AF are the same electrical characteristic with XN-3 A and XN-4 A respectively. Gear Box The mounting dimensions, the size of the gear box, and cabling layout have not been changed from the traditional Furuno radars. Changed is the radiator mounting bracket for a new radiator. The gear box can be equipped with a motor of either 24 rpm or 42 rpm type. RF Unit The 10 kW and 25 kW RF units are the same in size. The magnetron of 25 kW is a new type, smaller in size. The RF modulator generates short pulse 1 (S1) which has pulselength of 0.07 us and pulse repetition rate of 3000 Hz. Traditionally, the S1 is 0.08 us and 2200 Hz. The magnetron current monitor circuit ensures a defective magnetron being found easily. When the magnetron is short- or open-circuited, the magnetron current detector reads 1 to 1.5 V.

2-31

Block Diagram of Scanner Unit

TRIGGER Board : 03P9243 A(10 kW) 03P9243 B(25 kW)

T801 MODULATOR Board : 03P9244 A(10 kW) 03P9244 B(25 kW) 10 kW : RT-9025 25 kW : RT-9023 TX PROTECT

TX OFF Comparator TX-TRIG

U4(PLD) C A L H L L H H

P/L S1 S2 M1 M2 M3 L

B L L L H H H

(H) (12 Vdc)

Magnetron

Circulator

V801

HY801

10 kW : MG5241 25 kW : MG5436

Regulator )

on by S1 for PWR up

Trigger 1-4

Driver Q1

M1/M2

on by S1 for reducing MB.

Driver

Q12

Q5

BEARING SIG. GEN. Board MP-3795

RX

TX

U1

Trigger 1-4

Timing Disk

Photo-Interrupter

U901

Diode Limiter CR880

Reed Sw S801

Magnet

FET Q1 Q4

RU-9253 or RU-9371

Q20

S1 pulse

MIC U801

Motor

Waveform Reshaper, Amp. U902

Switching

B801 Regulator

Q901, Q902

24 rpm(D8G-516) 42 rpm(D8G-571)

U7, Q5

25 kW: 8.2 8.4 Vdc(S1) 10 kW: 7.4 7.6 Vdc(S1) (6.3 Vdc supplied to magnetron, voltage drop by pulse trans.)

VR1 Heater Voltage Check Magnetron

VR1(

48 MHz

A C L L H L L H

VTRIG

14 19 V Variable

OSC U5

P/L A,B,C

Relay K1

+12 V

U9

TX Pulse Generator

Radiator

Signal is generated when 530 V is supplied to 10 kW RF unit.

330 V(10 kW), 530 V(25 kW)

TX-HV

1 1% of accuracy Magnetron

Buffer U10

*25 kW: 7.4 8.1 Vdc(L) 10 kW: 4.6 5.3 Vdc(L)

BW MBS L

IF Amp. Board 03P9232 Gate Pulse Generator

MBS T MBS SIG.

IFoutput

Q627, Q628 4.5

Q603, U612 TP601 (output of U601)

U611 Buffer Amp.

MBS

Amp. Mixer

Log Amp. U602, U610, U601

B.W. Selector

TP604

U604 B.W. Adjustor (Long ranges) T603, T604

Cascade Amplifier Q601-Q602

IF

5Vpp

(Short ranges) TP608

Cascade Amplifier Q609, Q610

Log Amp. Q625, Q626

U603

TP603 Tuning Indicator (TUNING IND.)

Buffer Amp.

Tuning Circuit

Q619, Q620

Q614, Q615

TP602

TP605 (+7 V) TP606 (-9 V) TP607 (+9 V)

+5 V Regulator

+12 V R. MONI.

U609

TUNING CONT.

HD FL

Heading

SYNC P

Bearing

FR2115-SME-27A

2-32

Chapter 3. ADJUSTMENT

Hazardous Voltage This equipment uses high voltage electricity which can SHOCK, BURN or cause DEATH. Always make sure the electrical power is turned off before attempting to change a component or inspecting the inside of the equipment. A residual charge may exist in capacitors, even with the equipment turned off. Always short all supply lines to the chassis with an insulated screwdriver or a similar tool before touching the circuit. Working on the Scanner Unit Mast Work on the scanner unit mast is dangerous, and doubly so if the proper precautions are not taken. 1. Post an appropriate warning sign near the display unit to indicate that work on the scanner unit is being performed, to prevent accidental application of the power to the scanner unit. 2. Wear a safety helmet and always be aware of where the scanner radiator is.

3-1

3.1 Adjustment (Display Unit) Location of Major parts

Figure 3.1

Display Unit, front view

Control panel

Handle

Stay

Display pedestal This cover is removed to gain access to SPU, ARP, and RP Boards.

Figure 3.2

Display Unit, inside view

3-2

Mother Board (03P9251) DTB-2 (T.B.) GC-8 Board (64P1106) TX-HV Board (HV-9017)

INT Board (03P9252)

RP Board (14P0298) ARP Board (18P9002B)

Figure 3.3

Display pedestal, cover removed

SPU Board (03P9253)

TX HV Fuse (F3 : 0.5 A)

SPU Board Video Level Adjuster : R140

RF Video Level adjustor : R21

Fuse for P.M. (F402 : 0.5 A)

External Video Level adjustor : R134

Fuse for P.M. (F401 : 0.5 A) PM optional Board (03P9225)

Figure 3.4

Display pedestal, W/O GYRO CON Board

3-3

PTU Board (AC : 03P9245, DC : 03P9246) Shield cover removed

Figure 3.5

Display Unit, top view, drawing forward

Power Switch for Maintenance Fuse (F1) Fuse (F2)

Figure 3.6

Display pedestal, for side, shield cover removed

3-4

SCREEN

FOCUS

IF3-A10 Board (UBH188)

VIDEO Board (PBH173)

HV ADJ

SOCKET Board (UBH182)

CRT ADJ Board (PBH132-1)

DEGAUSS Board (PDM9025)

MAIN Board (PBH172-0)

INT Board PBH183-0

HPOSI Under the cover

Figure 3.7

Display Unit, top view, cover removed

Adjustment of CRT The CRT is adjusted by pressing the buttons on the CRT ADJ Board. The buttons locate as shown in the figure below. The LED D701 lights normally.

Figure 3.8

Adjusters on the CRT ADJ Board

MENU button: turns on/off the menu. INPUT button: selects Input 1 or Input 2 (not used). SEL+/SEL- buttons: selects items (+: moves cursor right or downward, -: moves cursor left or upward) ADJ+/ADJ- buttons: expands (+) or shrinks (-) the screen. 1) Brightness and Contrast

3-5

2) Display Size Press the MENU button on the CRT ADJ Board, PBH132-1 and the following menu will appear on the screen.

Steps

Ratings

1) Set the radar to TX. 1) Radar display area must be 280 3 mm.

2) Select the background color to blue : [RADAR MENU] [0] [2]. 3) Check items 1) to 5) right for rating.

280 mm

3 mm

4) Adjust the CRT, if necessary. How to change meun setting to default. 2) Display area must be centered. 3) Heading Line must be 0 1 .

Keep pressing the MENU button until UTILITY MOD menu appears.

1.0

Press SEL+ once to select "INITIALIZE". Press MENU. Within 5 seconds after the message INITIALIZE MODE CAUTION REPLACE FACTORY SETTING appears, press ADJ+.

4) Pincushion must be within 3 mm. 3 mm

5) D701 must be on. FR2115-SME-62

3-6


03P9253Board

Location of parts on SPU

TP1 CR8 CR7 CR6 CR5 CR4 CR3 CR2 CR1

TP11

TP13 TP12 TP5 TP6

TP9

TP8 TP7 R140 TP4 TP3 TP2

Test points and Ratings TP No.

Signal

Rating

Condition

TP1

GND

TX

TP2

GND

TP3

TUNE IND

Approx. 1 to 3.2 VDC

(except for maximum range)

TP4

RF VIDEO

3.9 to 4.1 Vpp

TP5

TX TRIG

TP6

SAMPL T

4 V to 12 V, positive, approx. 3.5 to 15 us S1: 3005 to 3976 Hz, S2: 2790 to 3505 Hz M1: 1502 to 1602 Hz, M2: 976 to 1041 Hz M3: 976 to 1041 Hz, L: 583 to 621 Hz

TP7

H SYNC

Approx. 64 kHz

TP8

V SYNC

Approx. 60 Hz

TP9

TUNE V

Approx. 2 V to 32 V

TX

TP11

VIDEO

TP12

VIDEO LEVEL

Approx. 5 V 3.9 to 4.1 Vpp, negative, main bang level Adjusted by R140

TP13

STC CURVE

TX Range: 12 nm IR: OFF STC: fully ccw FTC: fully ccw Ant. Height: 10 m Range: 12 nm Gain: fully cw STC: fully cw

4 us: 0.8 to 1.1 V, 10 us: 1.3 to 1.6 V 20 us: 1.9 to 2.3 V, 40 us: 2.7 to 3.0 V 60 us: 3.3 to 3.7 V, 90 us: 4.1 to 4.5 V 120 us: 4.3 to 4.7 V

3-7


18P9002Board

Location of Parts on ARP

R103 CR14 CR13 CR16 CR15 CR12 CR11 CR10 CR9 CR17 CR1 R104 TP7 TP6

TP1

TP8

S1

ROM (U64) ROM (U3)

JP11 TP9

TP11

TP12

TP10

TP4 TP3 TP2 ROM (U40)

Test points and Ratings TP

Signal

Rating

TP1

GND

TP2

VIDEO

TP3

GND

TP4

BP INPUT

Approx. 10 to 12 V

TP5

VIDEO INPUT

Approx. 4 Vpp

TP6

OFFSET (-)

0.09 to 0.13 VDC, adjusted by R104

TP7

OFFSET (+)

TP8

GND

TP9

QV OUTPUT

Approx. 4 V(main bang level)

TP10

+5 V

4.8 to 5.2 V

TP11

-12 V

-11.0 to -13.0 V

TP12

+12 V

12.1 to 13.5 V

Condition TX

Approx. 5 Vpp (main bang level)

3-8


14P0298Board

Location of Parts on RP

CR1

S1

Battery (BT1)

Flash ROM (U3)

3-9






Location of Parts INT Board 03P9252

TP6 R21

TP1

J450

J445

J457

TP2 J454 J442

J448 J469 J455

J458

J446

J443

J468

TP3

J466

J453

J467

J444 J462 J451 J463

J445

J471

J456

J465

R151 R153

TP4 J452 TP5

R134

Test points and Ratings TP No.

Signal

Rating

TP1

VIDEO (RF Input)

Approx. 4 Vpp, main bang level

TP2

GND

TP3

VIDEO (EXT Input)

Approx. 1 to 3.2 VDC

TP4

ANALOG (Input)

Same as output of connected equipment

TP5

GND

TP6

VIDEO (Output)

3.9 to 4.1 Vpp, main bang level RF video output adjusted by R21 EXT video output adjusted by R134

3-10

Condition TX

Selected thru menu


64P1106

Location of Parts on GYRO Board

JP1 JP3

F1 F2 F3

JP5

F4

JP2 JP4 R42

CR21 CR22 JP7

TP1 JP8

BT1

Test points and Ratings TP No. TP1

Signal +5 V

Rating 5.19 to 5.21 VDC, adjusted by R42

3-11

Condition


03P9246

Location of Parts on PTU Board, for DC set VR91

VR71 CR12 CR11

JP91 JP92 J105 VR1 VR51 J104

J103

TP2 TP1 TP4 TP3

Test points and Ratings TP No. J104

Signal

Rating

Condition

+140 V

138 to 142 VDC, adjusted by VR51

+32 V

27.0 to 35.0 VDC

+12 V

12.1 to 13.5 VDC

+5 V

4.8 to 5.2 VDC

-12 V

-11.0 to -13.0 VDC

Inverter freq., U31

42.75 to 47.25 kHz, adjusted by VR1

Inverter freq., U71

42.75 to 47.25 kHz, adjusted by VR71

MOTOR (+) and (-)

Approx.24 rpm

No adjuster for 42 rpm

If less than 24 rpm, turn VR91 cw. If more than 24 rpm, turn VR91 ccw.

Test display shows antenna speed.

# 1(+) & # 3(-) J105

TX

# 1(+) & # 7(-) J105 # 2(+) & # 7(-) J105 # 4(+) & # 7(-) J105 # 9(+) & # 7(-) TP3 or TP4 & Chassis TP1 or TP2 & Chassis J103 # 1(+) & # 3(-)

3-12


03P9245

Location of Parts on PTU Board, for AC set CR12 CR11

JP3

JP2

JP91 VR91 JP92 J105 VR1 VR51 J104 JP1 VR71 J103

Test points and Ratings TP No. J104

Signal

Rating

Condition

+140 V

138 to 142 VDC, adjusted by VR51

+32 V

27.0 to 35.0 VDC

+12 V

12.1 to 13.5 VDC

+5 V

4.8 to 5.2 VDC

-12 V

-11.0 to -13.0 VDC

Q31 Collector & Chassis

Inverter freq., U31

42.75 to 47.25 kHz, adjusted by VR1

FL71& Chassis

Inverter freq., U71

42.75 to 47.25 kHz, adjusted by VR71

J103

MOTOR(+)

Approx. 24 rpm

No adjuster for 42 rpm

# 1(+) & # 3(-)

And (-)

If less than 24 rpm, turn VR91 cw. If more than 24 rpm, turn VR91 ccw.

Test display shows antenna speed.

# 1(+) & # 3(-) J105

TX

# 1(+) & # 7(-) J105 # 2(+) & # 7(-) J105 # 4(+) & # 7(-) J105 # 9(+) & # 7(-)

3-13

Location of Parts on HV-9017 Board

J481

JP2

JP1 J482 CR21,RED

CR23, GRN

VR1

TP1

TP2

TP3

TP4

Test points and Ratings TP No.

Signal

TP1

Rating

Condition

34.7 to 35.3 VDC, adjusted by VR1

TP1 and TP2

TP2

0 V line

TP3

Sub inverter switching freq.

42.75 to 47.25 kHz

TP3 and TP2

TP4

Main inverter Switching freq.

42.75 to 47.25 kHz

TP4 and TP2

J482 #1 & Chassis

TX HV

10 kW: 310 to 350 V 25 kW: 520 to 580 V

TX HV also measurable at TB2 #1 in display pedestal

3-14

3.2 Adjustment (Scanner Unit)

        

 

    

     


  

Figure 3.9

Scanner Unit, side view (XN-20AF




  


  

Figure 3.10

Antenna radiator, bottom view (XN-20AF)

!" #    

 

 

 

#$ %

Figure 3.11


  

Scanner Unit, top view. Antenna radiator removed

3-15

&    

#  

'(")*  


  


Figure 3.12

Scanner Unit, stern side, cover removed

&   +   

-./   ,   #  


  

Figure 3.13

Scanner Unit, stern side, cover and RF module removed

#

  0+1


431 7

23 - 2 .3"4516 ,  #  


  

Figure 3.14

Scanner Unit, fore side, cover removed

3-16


RTR-063

FR-2125

Circulator (RC-3686)

RFC Board (03P9243B)

MIC (RU-9253/9371) IF Amp Board (03P9232)

VR1 on MODULATOR Board (03P9244B) for magnetron current adjustment

Figure 3.15

RF module, top view

MODULATOR Board (03P9244B)

Pulse Transformer (RT-9023)

Magnetron (MG5436)

Figure 3.16

RF module, bottom view

3-17


03P9232Board

Location of Parts on IF AMP VR601

TP606

TP604

TP607 TP605 TP603

TP608 TP602

Test points and Ratings TP No.

Signal

Rating

Condition TX

TP601

Output of U601

Factory-use

TP602

Output of U603

Factory-use

TP603

TUNING IND.

1.5 to 3.5 VDC

TP604

MBS

2.2 to 2.4 V, positive, 0.07 to 0.55 us

TX (Varies according to MBS T and MBS L settings)

TP605

+7 V

+5.7 to +6.7 VDC

ST-BY

TP606

-9 V

-8.7 to -9.3 VDC

TP607

+9 V

+8.7 to +9.3 VDC

TP608

Output of U611

Factory-use

J611 # 3 & Chassis

TUNING IND.

1.5 to 3.5 VDC

TX, long range, Maximum tuning indication

J611 # 2(+)

R.MONIT

1.5 to 3.5 VDC

ST-BY, short range

Output of U602

White noise level, factory-adjusted with VR601

TX

& # 10(-) VIDEO

3-18

(Field-adjustment prohibited!!)


03P9243BBoard

Location of Parts RFC

VR1

Test points and Ratings TP No. J801 # 12(+) & # 11(-)

Signal MAG HEATER.

Rating 8.2 to 8.4 VDC(S1) , adjusted by VR1 6.5 to 7.5 VDC(L)

3-19

Condition ST-BY TX

Location of Parts on MODULATOR Q4

Q3


03P9244BBoard Q2

Q1

VR1

Test points and Ratings TP No. 03P9243, J801 # 13(+) & Chassis

Signal MAG CUR.

Rating

Condition

Less than 0.15 V(ST-BY) 7.4 to 8.1 VDC(Long range, TX), adjusted by VR1

CAUTION: If the magnetron current is not set to within the rating, the magnetron will be damaged.

3-20


RTR-062

FR-2115

Circulator (RC-3686) RFC Board (03P9243A)

MIC (RU-9253/9371)

IF Amp Board (03P9232)

VR1 on MODULATOR Board (03P9244A) for magnetron current adjustment

Figure 3.17

RF module, top view

MODULATOR Board (03P9244A)

Pulse Transformer (RT-9025)

Magnetron (MG5241)

Figure 3.18

RF module, bottom view

3-21


03P9232Board

Location of Parts on IF AMP VR601

TP606

TP604

TP607 TP605 TP603

TP608 TP602

Test points and Ratings TP No.

Signal

Rating

Condition TX

TP601

Output of U601

Factory-use

TP602

Output of U603

Factory-use

TP603

TUNING IND.

1.5 to 3.5 VDC

TP604

MBS

2.2 to 2.4 V, positive, 0.07 to 0.55 us

TX (Varies according to MBS T and MBS L settings) ST-BY

TP605

+7 V

+5.7 to +6.7 VDC

TP606

-9 V

-8.7 to -9.3 VDC

TP607

+9 V

+8.7 to +9.3 VDC

TP608

Output of U611

Factory-use

J611 # 3

TUNING IND.

1.5 to 3.5 VDC

TX, long range, Maximum tuning indication

R.MONIT

1.5 to 3.5 VDC

ST-BY, short range

Output of U602

White noise level, factory-adjusted with VR601

TX

& Chassis J611 # 2(+) & # 10(-) VIDEO

3-22

(Field-adjustment prohibited!!)


03P9243ABoard

Location of Parts on RFC

VR1

Test points and Ratings TP No. J801 # 12(+) & # 11(-)

Signal MAG HEATER.

Rating 7.4 to 7.6 VDC(S1), adjusted by VR1

3-23

Condition ST-BY

Location of Parts on MODULATOR Q4

Q3


03P9244ABoard Q1

Q2

VR1

Test points and Ratings TP No. 03P9243

Signal MAG CUR.

Rating

Condition

Less than 0.15 V(ST-BY),

J801 # 13

4.6 to 5.3 VDC(Long range, TX),

& Chassis

adjusted by VR1

CAUTION: If the magnetron current is not set to within the rating, the magnetron will be damaged.

3-24

Chapter 4. MAINTENACE

Hazardous Voltage This equipment uses high voltage electricity which can SHOCK, BURN or cause DEATH. Always make sure the electrical power is turned off before attempting to change a component or inspecting the inside of the equipment. A residual charge may exist in capacitors, even with the equipment turned off. Always short all supply lines to the chassis with an insulated screwdriver or a similar tool before touching the circuit.

Working on the Scanner Unit Mast Work on the scanner unit mast is dangerous, and doubly so if the proper precautions are not taken. 1. Post an appropriate warning sign near the display unit to indicate that work on the scanner unit is being performed, to prevent accidental application of the power to the scanner unit. 2. Wear a safety helmet and always be aware of where the scanner radiator is.

4-1

4.1 DIP Switches DIP switch S1 on the ARP Board (18P9002) and RP Board (14P0298) changes the specifications of radars.

14P0298 Board

18P9002 Board

Figure 4.1

Display pedestal, inside view

S1

14P0298(RP)

#1 #2 #3 #4

S1 OFF #4

#1

ON

S1

18P9002B(ARP) S1 OFF #4

#1

#1

ON

#2 #3 #4

Description Memory clear Not used Not used Not used

Description Baud rate of ARPA output data OFF:4800 bps, ON:9600 bps Tracking model OFF:A TRK 88* ON:A TRK 94 Not used EEPROM memory clear at power-on

Default OFF OFF OFF OFF

Default OFF

OFF OFF OFF

*1 A TRK94 has faster tracking speed than A TRK88, but result in unsteady vector and track.

4-2

4.2 Jumper Settings Board

Specification

Jumper Settings

Remarks

100 VAC, 24 rpm

JP1: Yes JP2: Yes JP3: Yes JP4: No JP91: No JP92: No R98:4.7 k ohms

100 VAC, 42 rpm

JP1: Yes JP2: Yes JP3: Yes JP4: No JP91: No JP92: Yes R98: 1.2 k ohms

220 VAC, 24 rpm

JP1: No JP2: No JP3: No JP4: Yes JP91: No JP92: No R98:4.7 k ohms

220 VAC, 42 rpm

JP1: No JP2: No JP3: No JP4: Yes JP91: No JP92: Yes R98: 1.2 k ohms

24 VDC, 24 rpm

JP91: No JP92: No R98: 4.7 k ohms

24 VDC, 42 rpm

JP91: No JP92: Yes R98: 1.2 k ohms

HV-9017A

10 kW (FR-2115)

JP1: 300 V JP2: 330 V

HV-9017B

25 kW (FR-2125)

JP1: 500 V JP2: 330 V

03P9252

INS RX (C) fromat

J468: J1-J2

J1-J2: Current loop

(INT Board)

INS RX (H) fromat

J469: J1-J2

J3-J4: RS-422

ANALOG input level

J471: J1-J2

J1-J2:L, J3-J4:M, J5-J6:H

03P9253

Battery connection

JP1: Yes

(RP Board)

not used

JP2: No

03P9245A (PTU Board, AC)

03P9245C (PTU Board, AC)

03P9245D (PTU Board, AC)

03P9245F (PTU Board, AC)

03P9246A (PTU Board, DC) 03P9246C (PTU Board, DC)

4-3

4.3 LED Status LED status symbols: Board SPU Board (03P9253)

LED No. CR1 (YLW) CR2 (YLW) CR3 (YLW) CR4 (YLW) CR5 (YLW) CR6 (YLW) CR7 (YLW) CR8 (YLW)

RP Board

CR1 (YLW)


: OFF ;
: Blinking ; : ON Normal Status












Check Item KEY TX NAV TX RJ7 TX INS TX KEY RX

Remarks

Blinks every 3 seconds. Blinks when RJ-7 is connected. Not used Lights momentary when key is pressed. NAV RX Blinks when receiving nav data. RJ7 RX Blinks when RJ-7 is connected. INS RX Blinks when receiving nav data. CPU CLK Blinks every second.

Location of LEDs

CR4 CR3 CR2 CR1

CR8 CR7 CR6 CR5

FR2115-SME-25A

CR1

(14P0298)

ARP Board, AC

CR1 (YLW) CR9 (RED)

(18P9002)

CR10 (RED) CR11 (RED) CR12 (RED) CR13 (YLW) CR14 (YLW) CR15 (RED) CR16 (RED) CR17 (YLW) CR32 (YLW)

PTU Board, AC

CR11 (RED) CR12 (RED)

(03P9245)

PTU Board, DC

CR11 (RED)

(03P9246)

CR12 (RED)








 or




 or








FR2115-SME-25B

CPU CLK HDG alarm BP alarm Video alarm TRIG alarm TRIG freq. TRIG freq. Gyro alarm Log alarm

Blinks at irregular interval Lights if heading data is not received for more than 10 sec. Lights if bearing data is not received for more than 10 sec. Lights if video data is not received for more than 60 sec. Lights if trigger is not received more than 10 sec. Lights if trigger PRR is less than 1250 Hz (S2). Not used

Lights if gyro data is not received for more than 10 sec. Lights if log data is not received more than 60 sec. DSP CLK Blinks every 2 seconds FE echo Lights when echo data is data received. Over-volt. Lights when ship’s mains exceeds the rating. Over-cur. Lights if over-current is detected.

CR32 CR16 CR15

CR12 CR11 CR10 CR9 CR1 CR17

CR14 CR13

FR2115-SME-24A

CR12

CR11

FR2115-SME-25C

Over-volt. Same as above Over-cur.

4-4

LED status symbols: Board

LED No.

TX-HV Board

CR21 (RED)

(HV-9017)

CR23 (GRN)


: OFF ;
: Blinking ; : ON Normal Status




Check Remarks Item Over-cur. Lights when over-current is detected. OFF when the line is abnormal. -12 V

Location of LEDs

CR23

CR21

FR2115-SME-25D

GYRO Board

CR21 (GRN)

(64P1106)

CR22 (GRN)




CPU Monitor

Goes off or on if output is abnormal.

+5 V

OFF when the line is abnormal.

CR21

CR22

FR2115-SME-25E

4-5

4.4 Self-test Test Menu Press [RADAR MENU], [0], [0], [0], [3], and [ENTER] in this order, and the self-test result display will appear after several seconds. Figure 4.2 shows the self-test result display. If any error has been found in circuitry, NG appears instead of OK. The self-test is carried out at every power-up, not when the keys are pressed. If the self-test detects an error, the message SYSTEM FAIL appears at the lower right of the screen.

ROM Test

FR-2105

Radar system program number (MAIN board) ARP program number (ARP board) RP program number (RP board)

MAIN ARP DSP RP

RAM Test

CRAM Test

TEST

PROGRAM NO 0359149101

ROM OK

RAM OK

CRAM

DIPSW 1234

1859038104 1859039101 0359150101 DRAM RP BOARD BAT RP CARD 1 CARD 1 BAT

OK OK OK

OK OK OK OK

OK OK OK

0000

OK OK OK

CARD 2 CARD2 BAT

DIP switch setting, S1 on ARP board (#1 to #4 from left) 0 : on, 1 : off

0000

OK OK

DIP switch setting, S1 on RP board 0 : on, 1 : off

ANTENNA SPEED 0.0RPM TRIG FREQ 0Hz MAG CURRENT 4.9V R. MONITOR 1.8V TUNE IND 2.5V

002

123

251 008 EBL test Test for PM and Degauss switches

Trackball test VRM test

Key and knob test (BRILLIANCE, A/C RAIN, A/C SEA, and GAIN knobs are not tested.)

CH1 $GPGLL,3445.000, N, 13521.000,E

IEC61162 signal input to J450 is monitored.

Figure 4.2

Self-test Result Display

4-6

FR2115-SME-45




The ICs checked in the diagnostic test are shown in the table below. For NG, suspect faulty IC. Note that parts level replacement is not possible; replace at board level. Check Item MAIN

ROM U11

RAM U5, U7

CRAM

ARP

U3

U9, U10

U4, U11

DSP

U40

U33, U36, U38, U39

U21, U22

RP

U3

U8, U9

U4

DRAM




Board to be checked 03P9253






18P9002

U2

14P0298

Check Item RP BOARD BT

Parts to be checked Battery BT1 on 14P0298

Remarks Replace 14P0298.

RP CARD 1

Card or pcb related to upper card slot

CARD 2

Card or pcb related to lower card slot

Replace 14P0299 (CARD I/F) or 14P0298 (RP).

CARD 1 BAT

Card or its battery in upper card slot

Replace memory card.

CARD 2 BAT

Card or its battery in lower card slot

ANTENNA SPEED

Refer to P2-14

Replace motor or related pcb.

TRIG FREQ

Replace 03P9253.

Description of the self-test result display 1) When the ARP and RP boards are not installed, related lines are shown by Xs. 2) RAM card will be NG if the card is inserted after power-up. 3) RP BOARD BAT: Checks the voltage of the battery on the RP board. NG will appear when the battery drops to less than 2.65 V. The capacity of a new battery is about 3.6 V. 4) CARD1 BAT/CARD 2 BAT: The capacity of the battery inside the card is checked. 5) ANTENNA SPEED: Set the radar to TX. 0 (zero) is indicated in STBY mode. 6) TRIG FREQ: Set the radar to TX and stop the antenna rotation. 7) MAG CURRENT*: Reference only. The value is not actual magnetron current. If the radar is normal, the value increases when the radar is set from STBY to TX. 8) R. MONITOR* Reference only. This checks regulated +5 V for MIC. If 0 V, it is abnormal. 9) TUNE IND*: Reference only. If the radar is normal, the value increases when the radar is set from STBY to TX. The defective magnetron or MIC is expected if the value is low at TX. 10) *: Service call with these readings may help the technician to prepare necessary spare parts.

Keyboard Test Pressing a key highlights the corresponding location on the display screen. The STBY TX key is pressed in the end.

4-7

EBL/VRM/Trackball Test Pressing the key and rotating the trackball increases or decreases the number on the screen.

Test Pattern Pressing the STBY TX key calls up the test pattern composed of circles, squares, and diagonal lines.

4.5 Notice on Replacing Major Parts MAGNETRON NOTE) The magnetron emits a strong magnetic field. For this season, remove a wrist watch before performing the replacement and use a non-magnetic screwdriver to dismount the magnetron. The estimated life of the magnetron is 2000 hours, (including time in stand-by), however actual life depends on usage. 1. Turn off the power. 2. Dismount the transceiver module. 3. Dismount and replace the magnetron. 4. When a new magnetron is fitted, turn on the power and measure magnetron current. See Chapter 3 for heater voltage rating, and potentiometer to be adjusted. 5. Allow at least 30 minutes under ST-BY for pre-heating. 6. Transmit on a long range and measure magnetron current. Readjust magnetron current if necessary. 7. Allow at least 30 minutes under TX for frequency stabilization. 8. Tune the radar : Press [RADAR MENU] [0] [0] [2] [0] [0] [0] [0] and [ENT]. 9. Reset


TX Hoursand
On Hourson the INSTALLATION SETUP menu.

MIC The MIC can be replaced individually. However, the replacement should be made inside the room where no radar signal is received. The Tune Initialization must be made after the replacement.

SPU Board Settings of the MAIN and INSTALLATION menus are stored onto EEPROM U10 on the SPU Board. Remove the U10 on a old board and replace it with one on the new board. The Tune Initialization must be made after the replacement.

4-8

4.6 Program Numbers 1) The following summarizes the programs used in the system. The radar and RP programs are stored on the flash ROM, and the ARP program on the PROM. 2) How to switch between English and Japanese Versions The following key operation can change the English menu to the Japanese one, and vice versa. (1) Turn on the unit. (2) While pressing and holding down the HL OFF [1] key, press the PANEL BRILL [2] key, the MODE [3] key, and the OFF CENTER [4] key in this order. (3) And then, turn off the unit. Board

Program Number

Method of Updating

SPU Board (03P9253)

0359149101

Loading program with a personal computer

RP Board (03P0298)

0359150101

Loading from program master card

ARP Board (18P9002)

ARP : 18590381XX

Changing PROM.

Remarks

DSP : 18590391XX

4.7 How to update system program Radar System Program The radar system program, stored onto the flash ROM U11 on the SPU board, is replaced by following procedure. Connection The series port of a personal computer (PC) is connected to the J456 on the INT board inside the radar.

Procedure 1. Open the program file, and click the up.bat file. The message “TARGET POWER ON” appears. 2. Turn on the radar. “Now Erasing” and then, “xxx percent completed” appears on the PC screen. Nothing appears on the radar screen. The program update is terminated with the message “Finish Version up. ”

4-9

3. Disconnect the interconnection cable. 4. Turn off the radar and turn on again. Confirm the program revision level.

RP Program The program is stored onto the flash ROM, U3 on the RP board. 1. Insert the program card into the upper card slot. 2. Turn on the radar. 3. The radar is programmed with new version after about 15 seconds while the count-down screen is displayed on the screen. The CR1 on the RP board lights. 4. Turn off the radar and turn on again. Confirm the program revision level.

ARP Program The program is stored onto the PROMs, U3 and U40 on the ARP board. The ROM is replaced to update the program.

4-10

4.8 Alternation of Power Supply The following tabulates the necessary parts to be changed when the radar is modified from AC specification to DC specification and vice versa. From AC to DC Parts Name PTU Board (DC) Filter Assembly

Type

Code No.

Remarks

RPU-011-DC (24 rpm)

008-487-440

03P9246

RPU-011-DC (42 rpm)

008-493-700

03P9246

RDP-124*DC*

008-492-460

03P9226, fuse, etc.

From DC to AC Parts Name PTU Board (AC)

Type

Code No.

Remarks

RPU-011-60R2 (24 rpm)

008-487-430

115 VAC, 03P9245

RPU-011-60R4 (42 rpm)

008-487-890

115 VAC, 03P9245

RPU-011-72R2 (24 rpm)

008-487-900

220 VAC, 03P9245

RPU-011-72R4 (42 rpm)

008-487-920

220 VAC, 03P9245

NF Chassis Assy.

RPU-011-AC*100/115 V*

008-487-470

Fuse : 10 A

(Noise Filter)

RPU-011-AC*220 V*

008-487-480

Fuse : 5 A

 


    
   


Figure 4.3

Display Unit, top view, drawn forward

4-11

Chapter 5. TROUBLESHOOTING 5.1 Outline This chapter provides troubleshooting flow charts and describes error messages.

5.2 Error Message When no bearing pulse signal is input to the display unit, BP-SIG-MISS is indicated, and when no heading signal, HD-SIG-MISS. Check the antenna cable when those indications appear.

Visual Alarms Visual alarms appear on the display to alert the operator that the system is abnormal. The name and meaning of each visual alarm is tabulated below. Alarm Type ARPA alarm

Visual Alarm

Description

LOST

No echo received from an acquired target for nine consecutive sweeps. The target mark blinks.

TARGET FULL (AUTO+MANU)

Relevant target memory becomes full.

GUARD

Target transits the operator-set guard ring.

Input signal

HEAD LINE

No heading pulse to the SPU board

(SIGNAL MISSING)

AZIMUTH

No bearing pulse to the SPU board.

TRIGGER

No trigger pulse to the SPU board

VIDEO

No video signal to the SPU board

LOG

No log signal contact closure to SPU board for one minute

GYRO

No gyro signal AD format to SPU board for one minute

EPFS

No L/L data from Electronic Position Fixing System to the SPU board

5.3 Troubleshooting Flow Charts The troubleshooting flow charts help the service technician to diagnose a problem. To use the flow charts, first find symptom and its flow chart number in the flow chart on the next page. Then, follow appropriate flow chart to troubleshoot.

5-1

General Flow Charts

5-2

Symptom: Nothing appears on the display

Flow chart 1

Keys beep when pressed.

No (No power)

Confirm that maintenance SW is on.

*Maintenance switch is provided only on AC sets.

Yes (Equipment is powered)

OK? CRT heater lights?

NG

Faulty CRT assy. (Type : CDT2163B) A Defective 140 Vcc line

NG(set to front side)

OK (set to rear side)

OK

Turn on w/ mainte. sw on.

OK

NG

*See block diagram Check horizontal sync, of SPU board. vertical sync and video output (MOTHER pcb, 03P9251,J418 #1,2,3,13,14)

Check fuses. (F1 and F2)

OK? Results of measurement.

NG

Wrong switch setting

*For DC sets F1 only.

NG

Defective 03P9253 (SPU) OK Replace fuse

OK Check input voltage at DTB-1.

NG

OK

Faulty CRT assy. (Type : CDT2136B)

Blown fuse

Rating?

NG

Defective PTU Board

Fauty power cable, power connector, ship's mains.

OK

Disconnect DJ-1. OK Defective pcb inside RF unit

NG

CR12 on PTU lights? Yes

+5V,+12V from PTU are normal? OK Defective SPU

5-3

No

Defective pcb inside display unit NG

Defective PTU Board FR2115-SME-75

Symptom: Abnormal display

Flow chart 2

*See block diagram Check horizontal sync, of SPU board. vertical sync and video output (MOTHER Pcb, 03P9251,J418 #1,2,3,13,14)

OK ?

NG

CRT brilliance ?

Defective 03P9255 (SPU)

NG

Adjust BRIL control.

OK

NG

OK ? OK

Picture is in sync ?

NG

Picture is synchronized automatically. (No adjuster)

Adjust BRIL on CRT ADJ pcb. OK

OK

Picture size?

NG

Adjust picture size. (CRT ADJ Board)

OK OK ?

NG

Faulty CRT assy. (Type : CDT2136B)

OK

Focus ?

NG

Adjust CRT focus.

OK OK ? OK End

5-4

NG FR2115-SME-74

NG

Symptom: No heading data Flow chart 3

Blank

Heading data indication ?

***.* Check CLK data at INT board, J446 #3,#4 . Power OFF and ON.

OK?

NG

OK OK?

NG

OK (Normal)

Heading data from the sensor temporarily interrupted.

Faulty pcb 03P9253

Faulty heading sensor or its interconnection cable. FR2115-SME-73

5-5

Symptom: No nav data. Flow chart 4

Nav data indication ?

All data shown by asterisks or blank.

Some data shown by asteriska or blank.

Check LED(CR6) on 03P9253.

Check nav equipment's output sentences. OK?

NG

OK OK?

NG

OK

Wrong data sentence format selection.

Select correct sentence.

Faulty pcb 03P9253 or IEC61162 not selected on nav equipment.

Faulty nav equipment or interconnection cable. FR2115-SME-72

5-6

Symptom: Key(s) inoperative Flow chart 5

Warm up countdown.

NG

Faulty pcb 03P9253.

OK

Only one key is faulty.

NG

Faulty S1 to S11 on pcb 03P9255, S1 to S19 on pcb 03P9256.

Single vertical row only.

Defective signal line Faulty pcb 03P9255(U1).

OK

Single vertical row of keys is faulty. ALL keys.

Press a key.

Not lighting

Faulty pcb 03P9255.

CR5 lights ? Lighting

Faulty pcb 03P9253.

FR2115-SME-71

5-7

Symptom: Antenna does not rotate Flow chart 6

Antenna does not rotate.

NG

OK ANT SW position ?

OFF

Turn on the SW.

ON

MOTOR +/signal on DJ1.

0V (DJ-1 #23, #25) when TX key is pressed.

+24V (DJ-1#23, #25) several seconds after TX key is pressed. J103 #7on PTU Pcb

TX key is pressed.

Faulty antenna cable, Faulty motor. +5V when TX key is pressed. Faulty PTU Board

Faulty Ant. SW on 03P9254, Faulty 03P9253 FR2115-SME-70

End

5-8

Symptom: No echoes nor white noise Flow chart 7

GAIN VR at maximum.

NG

Set GAIN VR at maximum.

OK Check GAIN control voltage with GAIN VR fully CW. (#15 of U100 on SPU)

0V ?

NG

Faulty VR4 on 03P9255 Board.

OK 0V Check video signal input to INT board (TP1&TP6).

Rating ?

OK Faulty pcb 03P9253.

White noise. approx, -4V

NG

Check for short circuited or disconnected video signal line between anntena unit and display unit.

Open- or short-circuit

NG

Faulty video line

OK

+12/-12V line on antenna unit.

NG

Faulty +12V/-12V line FR2115-SME -69

OK Faulty pcb 03P9232.

5-9

Symptom: Poor sensitivity Flow chart 8

Check TOTAL ON TIME/TOTAL TX TIME.

Less than 2000 hrs ?

NG

Replace magnetron.

OK

Manual tuning ?

NG

OK No echo; poor sensitivity.

Check maximum gain is obtained with maximum tuning indication.

Poor sensitivity To 1) (page 5-11)

No echo (White noise appears) Check if display unit outputs TX trigger.

OK ?

NG

Defective IF amp. Defective MIC

0V

(DJ-1 #4)

OK Rating ?

Perform Tuning Initialization. OK Defective EEPROM, Defective back-up ckt

NG

approx. 12V

Defective IF amp., MIC, or SPU board.

NG (No TX trigger)

Faulty pcb 03P9253.

OK Check TUNE voltage output from display unit. (Switch from ST-BY to TX)

DJ-1#7 is normal ?

Manual Tune Voltage : about 2 V to 32 V

NG

Faulty pcb 03P9253.

OK In manual mode, rotate TUNE VR.

TUNE IND in self-test result ?

TUNE IND value in manual mode ; about 1 to 3 V

NG To 2) (page 5-12)

OK Check input video signal to INT Board, TP1 & TP6.

OK?

0V

approx. -4V

NG

Defective IF AMP (03P9232)

OK Faulty pcb 03P9253.

5-10

FR2115-SME-68

From 1) on page 5-10.

Check puselength select signals.

PW A, PW B, PW C are normal ?

Signal PW A,DJ1 #18 PW B,DJ1 #13 PW C,DJ1 #1

NG

S1 L L L

S2 M1 M2 M3 L H L L L L H H H L L H

L H H H

Faulty pcb 03P9253.

OK

Measure magnetron current in TX mode.

Rating ?

FR-2115 : 4.6 V ‘5.3 Vdc (L) FR-2125 : 7.4 V ‘8.1 Vdc (L)

NG

Defective magnetron

OK

Magnetron usage time within about 20000 hrs.

NG

Replace magnetron.

OK

In manual tune, measure tune volt, at DJ-1 #7, while rotating TUNE VR.

Rating

Manual tune voltage : about 2 to 32 V

NG

Faulty pcb 03P9253.

OK

Check TUNE IND voltage in self-test result display.

MAX. voltage

Manual tune IND. voltage:about 1 to 3V

about 1V

Faulty MIC, Defective 03P9232

about 3V

FR2115-SME-66

Defective 03P9232, Defective 03P9230.

5-11

From 2) on page 5-10

In ST-By mode; FR-2115: 310 to 350Vdc FR-2125: 520 to 580Vdc

Measure TX-HV in ST-By mode.

Rating

NG

Faulty PCb HV-9017

OK FR-2115: 7.4 V to 7.6 Vdc (S1) FR-2125: 8.2 V to 8.4 Vdc (S1) 6.5 V to 7.5 Vdc (L)

Check magnetron heater voltage in ST-By mode.

Rating

NG

Faulty pcb 03P9243

OK

FR-2115: 4.6 V to 5.3 Vdc (L) FR-2125: 7.4 V to 8.1 Vdc (L)

Measure magnetron current in TX mode.

Rating

NG

Faulty magnetron.

OK Defective Magnetron or MIC

FR2115-SME-67

5-12

Symptom: No GAIN, A/C SEA, A/C RAIN effect Flow chart 9

GAIN can be adjusted.

NG

OK

Check voltage at U100 #1 on 03P9253 .

OK

NG

Faulty VR4 on 03P9255 board.

MIN : approx. -7 V MAX : approx. 0 V

Faulty pcb 03P9253

A/C SEA can be adjusted.

NG

OK

Check voltage at U49 #14 on 03P9253 .

OK

NG

Faulty VR3 on 03P9255 board.

MIN : approx. 0 V MAX : approx. 5 V

Faulty pcb 03P9253

A/C RAIN can be adjusted. OK

NG

Check voltage at U100 #7 on 03P9253 .

OK

NG

MIN : approx. -7 V MAX : approx. 0 V

Faulty pcb 03P9253

End

5-13

Faulty VR2 on 03P9255 board. FR2115-SME-65

Symptom: Target cannot be acquired Flow chart 10

AD format HD data received

Transfer rate?

*Heading data in NMEA183 cannot be used for ARP.

200 msec

Select 25 msec, AD format.

25 msec

EPA or ARPA?

E PA

When CR1 on ARP board is off : faulty 18P9002. When CR1 on ARP board is blinking : faulty 18P9002 or 03P9253 .

ARPA

Selftest result?

ARP/DSP is NG.

Faulty pcb 18P9002

ARP/DSP is OK.

Input signal test 1 result?

H, B, T, and/or V is NG.

H, B, T and V are OK. System fail? Rotating GAIN VR, observe FE-data in input signal test 2.

No error indication H, BP, T, V, Gyro Faulty pcb 18P9002

Error indication

OK Incorrect input or Faulty pcb 03P9253. OK?

0 or no change

FR2115-SME-64

Faulty pcb 18P9002

OK (Max gain: Max value, min gain: min value)

All targets acquired ?

All targer not acquired

Faulty pcb 18P9002

Some targers not acquired

No defectived board presumed Check acquisition conditions.

5-14

SCHEMATIC DIAGRAM Drawing

Type

INTERCONNECTION DIAGRAMS

-

Drawing No. FR-2115/2125

Page

C3464-C01

¡

S-1

RDP-124(AC)

C3464-K01

¡

S-2

RDP-124(DC)

C3464-K19

¡

S-3

03P9255(1/2)

C3464-K04

¡

S-4

03P9255(2/2)

C3464-K05

¡

S-5

SUB PANEL PRINT

03P9254

C3464-K06

¡

S-6

RIGHT PANEL PRINT

03P9256

C3464-K07

¡

S-7

03P9252(1/4)

C3464-K08

¡

S-8

03P9252(2/4)

C3464-K09

¡

S-9

03P9252(3/4)

C3464-K10

¡

S-10

03P9252(4/4)

C3464-K11

¡

S-11

03P9251

C3464-K12

¡

S-12

03P9251

C3464-K13

¡

S-13

DEGAUSS BOARD

PDM9025

C3352-K18

¡

S-14

TX-HV BOARD

HV-9017

C3352-K07

¡

S-15

03P9245(AC)

C3464-K03

¡

S-16

03P9246(DC)

C3464-K18

¡

S-17

MAIN BOARD(CRT)

PBH172

C3464-K20

¡

S-18

VIDEO BOARD(CRT)

PBH173

C3464-K21

¡

S-19

IF3-A10 BOARD(CRT)

UBH188-A00010

C3464-K22

¡

S-20

SOCKET BOARD(CRT)

UBH182-A00010

C3464-K23

¡

S-21

CONNECTION BOARD(CRT)

UBH207-A00010

C3464-K24

¡

S-22

64P1106(1/2)

C4340-K01

¡

S-23

64P1106(2/2)

C4340-K02

¡

S-24

PERFORMANCE MONITOR I/F

03P9225

C3464-K17

¡

S-25

RGB BUFFER BOARD

03P9229

C3464-K25

¡

S-26

ALARM BOARD

03P9262

C3464-K26

¡

S-27

J3464-K02

¡

S-28

DISPLAY UNIT GENERAL SCHEMATIC CENTER PANEL PRINT

INT BOARD

MOTHER BOARD

PTU BOARD

PROCESSOR BOARD

-

SCANNER UNIT MODULATOR BOARD

03P9244

C3464-K14

¡

S-29

RFC BOARD

03P9243

C3464-K15

¡

S-30

IF AMP BOARD

03P9232

C3464-K16

¡

S-31

BEARING SIG GEN BOARD

MP3795

C3352-K10

¡

S-32