Product Service Manual – Level 2
Service Manual for BenQ: G2000W P/N: 9J.0CA72.ASx/ABx
Applicable for All Regions
Version: 001 Date:07/09/17
Notice: - For RO to inpu t specific “ Legal R equirement” in specific NS re garding to respon sibility and liability statements. - Please check BenQ’s eS upport web site, http://e suppo rt.benq. com, to ensure that you have the most recent version of this
manual.
First Edition (June, 2006) © Copyright BenQ Corporation 2006. All Right Reserved.
-1-
1.1. Trademark............................................................................................................................... 3 2.1. RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS..................... 4 2.2. Safety Notice........................................................................................................................... 4 2.3 .Compliance Statement........................................................................................................... 4 2.4. General Descriptions.............................................................................................................. 4 2.5. Related Service Information .................................................................................................. 4 3.1 Specification............................................................................................................................ 5 3.2. Customer Acceptance .......................................................................................................... 18 3.3. Packing ................................................................................................................................. 25 4.1. Exploded View ..................................................................................................................... 26 4.2. Disassembly /Assembly........................................................................................................ 27 5.1 Software / Firmware Upgrade Process................................................................................. 31 5.2. Alignment procedure (for function adjustment)............................................................... 40 6.1 Block diagram ....................................................................................................................... 46 6.2. Trouble Shooting Guide ...................................................................................................... 47 6.3 Circuit Operation Theory .................................................................................................... 51 6.4 Spare Parts List...................................................................................................................... 60
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About This Manual This manual contains information about maintenance and service of BenQ products. Use this manual to perform diagnostics tests, troubleshoot problems, and align the BenQ product.
The following terms are trademarks of BenQ Corporation: BenQ
Importance Only trained service personnel who are familiar with this BenQ Product shall perform service or maintenance to it. Before performing any maintenance or service, the engineer MUST read the “Safety Note”.
-3-
2. Introduction This section contains general service information, please read through carefully. It should be stored for easy access place for quick reference.
The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a legal requirement by EU (European Union) for the global electronics industry which sold in EU and some counties also require this requirement. Any electrical and electronics products launched in the market after June 2006 should meet this RoHS requirements. Products launched in the market before June 2006 are not required to compliant with RoHS parts. If the srcinal parts are not RoHS complaints, the replacement parts can be non ROHS complaints, but if the srcinal parts are RoHS compliant, the replacement parts MUST be RoHS complaints. If the product service or maintenance require replacing any parts, please confirming the RoHS requirement before replace them.
1. Make sure your working environment is dry and clean, and meets all government safety requirements. 2. Ensure that other persons are safe while you are servicing the product. DO NOT perform any action that may cause a hazard to the customer or make the product unsafe.
3. Use proper safety devices to ensure your personal safety. 4. Always use approved tools and test equipment for servicing. 5. Never assume the product’s power is disconnected from the mains power supply. Check that it is disconnected before opening the product’s cabinet. 6. Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow ESD safety procedures while handling these parts. 7. Some products contain more than one battery. Do not disassemble any battery, or expose it to high temperatures such as throwing into fire, or it may explode. 8. Refer to government requirements for battery recycling or disposal.
Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications and your local Laser Safety Compliance Requirements.
This Service Manual contains general information. There are 3 levels of service: Level 1: Cosmetic / Appearance / Alignment Service Level 2: Circuit Board or Standard Parts Replacement Level 3: Component Repair to Circuit Boards
BenQ Global Service Website: http://www.benq.com/support/ eSupport Website: http://bqpgsr.benq.corp.com/customize/asplogin.asp -4-
G2000W defined as an entry-level 20 inch wide monitor targeting on both commercial and consumer users that need affordable D-sub andan DVI inputs. 20” wide monitor. The monitor supports maximum resolution up to 1680x1080 with The features summary is shown as below, *All panel spec. in C201 definition depends on the variance of panel source. *All spec. of monitor need to warm up at least 1hr. *All spec. of monitor need to set “Color” on “User preset” mode. *All spec. of monitor mentioned “Contrast Ratio” the test condition: Set “brightness” at 100, and “contrast” at 80. *All spec. of monitor mentioned “Luminance” the test condition: Set “brightness” at 100, and “contrast” at 100.
Feature items
Specifications
Remark
Panel supplier & module name Screen diagonal Display Format Pixel Pitch
AUO M201SP01 V1 20.1” 1680 (H) x 1050 (V) 0.258 mm x 0.258 mm R+L:170 degrees (typ)
TN 433.44(H) x 270.90(V) Panel Display information per one triad
Viewing Angle (@ Contrast Ratio >= 10) Analog interface with Scaling supported DVI interface with Scaling supported Video interface with Scaling supported Max resolution mode supported Number of Display Colors supported Contrast Ratio Luminance AC power input DC power input (with AC power adapter)
and U+D:degrees 170 degrees R/L:140 (min) (typ) and U/D: 140 degrees (min) Yes Yes No 1680 (H) x 1050 (V)@60Hz 16.7 millions 1000:1 (typ.),600:1(min) 300 cd/m2 (typ.),240 cd/m2 ( min) Yes No
DPMS supported
Yes
LED indicator for power status showed OSD for control & information supported Multi-language supported for OSD
Yes Yes Yes
Buttons control supported
Yes
6 buttons including monitor power on/off control1 button.
Flywheel control supported Scaling function supported Auto adjustment function supported DDC function supported (EDID ver. 1.3) DDC-CI support version 1.1 or later Audio speakers supported Audio Jack (input connector) supported
No Yes Yes Yes Yes No No
“I-Key” function DDC2B DDC-CI
-5-
With 15-pin D-sub connector With 24-pin DVI-D connector
RGB 6 bits + FRC data
90-264 Volts, 47-63 Hz. Off mode<1W Sleep Mode <2W Green/Amber/Non 8 languages/14languages
Earphone Jack (input connector) supported Microphone function supported Mechanical Tilt base design VESA wall mounting design Mechanical Rotate design Mechanical Lift base design Kensington compatible lock design
No No Yes Yes No No Yes
From -2 to +22 degree
2. Operational Specification 2.1 Power supply
Item Input Voltage range Input Current range Power Consumption DPMS Inrush Current Earth Leakage Current Hi-Pot Power Line Transient
Condition
Spec
Universal input full range 90 ~ 264VAC Normal “On” operation DPMS “Off” state DPMS “Sleep” state 110 VAC 220 VAC 264 VAC/50Hz 1. 1500VAC, 1 sec 2. Ground test: 30A, 1sec IEC1000-4-4
90~264VAC /45~63Hz < 2.0 Arms < =45 W <1W <2W < 30 A (peak) < 60 A (peak) < 3.5 mA Without damage < 0.1 ohm 1KV
IEC1000-4-5 (Surge)
Common: 2KV,
OK N.A Remark √ √ LED: Green √ LED: Off √ LED: Amber
√
Cold-start
√ (on-line test) (in-lab test)
√
√ √
Differential: 1KV
CCFL operation range
90 ~ 264VAC
4~8mA
√
CCFL Frequency
90 ~ 264VAC
40KHz ~ 80KHz
√
Depends on panel source Depends on panel source
Power cord
Color: Black Length: 1500 +/- 50 mm
√
Spec
OK N.A Remark
2.2 Signal interface
Item
Condition 15-pin D-Sub
Signal Cable 24-pin DVI-D
Pin assignment
Video input
15-pin D-sub connector 24-pin DVI-D connector
Color: Black Length: 1500 +/- 30 mm Color: Black Length: 2000 +/- 50 mm See Note-1 See Note-2
Signal type
Separate analog R/G/B
Level
700 mV (peak to peak)
Impedance
-6-
75 Ohms +/- 1.5 Ohms
√ √ √ √ √ √ √
For 15-pin D-sub For 24-pin DVI-D For 15-pin D-sub
Signal type
Level
Sync input
Impedance Sync Pulse Width (SPW)
Separate H/V-sync Composite H/V-sync (Positive/Negative) Logic High: 2.4V ~ 5.5V Logic Low: 0V ~ 0.5V (TTL level) Minimum 2.2KΩ(pull down) 0.7μs < H-SPW 1H < V-SPW
√
For 15-pin D-sub
√
Refer to VESA VSIS Standard V1R1
√ √
10KΩ for application
Note-1: The pin assignment of 15-pin D-sub connector is as below,
Pin 1 2 3 4 5 6 7 8
Signal Assignment Red video Green video Blue video Ground Cable Detected Red Ground Green Ground Blue Ground
Pin
Signal Assignment
9 10 11 12 13 14 15
PC5V (+5 volt power) Sync Ground Ground SDA H-Sync (or H+V) V-sync SCL
Note-2: The pin assignment of 24-pin DVI-D connector is as below,
Pin
Signal Assignment
Pin
Signal Assignment
1
TMDS RX2-
13
Floating
2
TMDS RX2+
14
+5V Power
3
TMDS Ground
15
Ground
4
Floating
16
Hot Plug Detect
5
Floating
17
TMDS RX0-
6
DDC Clock
18
TMDS RX0+
7
DDC Data
19
TMDS Ground
8
Floating
20
Floating
9
TMDS RX1-
21
Floating
10 11
TMDS RX1+ TMDS Ground
22 23
TMDS Ground TMDS Clock+
12
Floating
24
TMDS Clock-
2.3 Video performance -7-
Item Max. support Pixel rate
Condition
Spec
OK N.A Remark
165 MHz
√ √
Max. Resolution
1680 x 1050
Rise time + Fall time
< 3.1 ns (50% of minimum pixel clock period)
Settling Time after overshoot /undershoot
< 5% final full-scale value
Overshoot/Undershoot
voltage level over the full voltage range
√
1680 x 1050 @ 60Hz (max. support timing)
√
Refer to VESA VSIS Standard V1R1
< 12% of step function
Refer to VESA VSIS Standard V1R1
√
2.4 Scan range
Item Horizontal
Condition
Vertical
Spec 31-83 KHz
OK N.A Remark
55-76 Hz
√
√
2.5 Plug & Play DDC2B DDC-CISupport
Item DDC channel type
Condition
Spec
OK N.A Remark
√
DDC2B
EDID
DDC-CI
Version 1.3
√
Version 1.1 or Later
√
Refer to FP92E S/W spec. document to see the detailed EDID data definition. Refer to FP202 S/W spec
2.6 Support Timings
Actual Output
Input Timing Horizontal
640 x 350
31.47(P)
70.09(N)
25.18
1680x1050
31.47(N)
60.00(N)
25.175
1680x1050
√ √
VGA
640 x 480 640 x 480
37.50(N)
75.00(N)
31.50
1680x1050
√
VGA
720 x 400
31.47(N)
70.08(P)
28.321
1680x1050
√
VGA
800 x 600
37.88(P)
60.32(P)
40.00
1680x1050
√
VESA
49.50
1680x1050
√
VESA
800 x 600
46.88(P)
Vertical
75.00(P)
-8-
Dot Clock
Actual display
OK N.A Remark
Resolution
VGA
57.283
1680x1050
√
MAC
60.00(N)
65.00
1680x1050
√
VESA
60.02(N)
75.03(N)
78.75
1680x1050
√
VESA
1152 x 720
44.86(N)
60.00(P)
66.75
1680x1050
√
VT 0.83MA DVT 16:10
1152 x 870
68.68
75.06
100.00
1680x1050
√
MAC
1152 x 900
61.80
65.96
92.978
√ √
SUN CVT 0.98M9-R CVT-8
832 x 624
49.72
1024 x 768
48.36(N)
1024 x 768
74.55
1680x1050
1280 x 768
47.396(P)
60.0(N)
68.25
1680x1050
1280 x 800
61.64(P)
59.81(N)
83.5
1680x1050
√
1280 x 800
62.8(N)
75(P)
106.5
1680x1050
√
1280 x 960
60.00
60.00
108.00
1680x1050
√
VESA
108.00
1680x1050
√
VESA
135.00
1680x1050
√
VESA
√
VESA CVT 1.30MA
1280 x 1024 1280 x 1024
63.98(P) 79.98(P)
60.00(P) 75.02(P)
1360 x 768
47.7(P)
60.01(P)
85.5
1680x1050
1440 x 900
55.94(N)
59.89(P)
106.50
1680x1050
√
1440 x 900-R
55.94(P)
59.89(N)
88.75
1680x1050
√
1440 x 900
70.6(N)
75(P)
136.75
1680x1050
√
1600 x 1000
61.648(P)
60.00(N)
108.50
1680x1050
√
CVT 1.60MA-R
1680 x 1050
65.29(N)
60.00(P)
146.25
1680x1050
√
CVT 1.76MA
Note-3: “P”, “N” stands for “Positive”, “Negative” polarity of incoming H-sync/V-sync (input timing).
3. Operational & Functional Specification 3.1 Video performance
*All spec. of monitor need to warm up at least 1hr.
Item Resolution
Condition Any input resolution modes which are under 1680x1050
Contrast ratio
Spec
OK N.A Remark
1000:1 (typ.),600:1(min)
-9-
√
1680x1050
√
√
Brightness
At R/G/B saturated condition 300 cd/m2 (typ.),240(min)
Response time
Rising + Falling time
5 ms (typ.),8ms(max)
√
Viewing angle
At Contrast ratio = 10 At Contrast ratio = 10
R+L: 170 degrees (typ.) U+D: 170 degrees (typ.)
Test Equipment: Westar TRD 100 or equal level equipment ;
CIE coordinate of White
(0.313, 0.329) ± (0.03, 0.03)
Display colors
16.7 Millions colors
√ √ √ √
Spec
OK N.A Remark
6 bit + FRC
3.2 Brightness Adjustable Range
Item
Condition
At default contrast level (Max. brightness value – Min. brightness value) Brightness adjustable range (saturate point) & Full-white color pattern ≧ 100 cd/㎡
√
3.3 Acoustical Noise Item
Condition
Acoustical Noise
At 1 meter distance ≦ 30 dB/A & “Audio” function disabled
Spec
OK N.A Remark
√
3.4 Environment
Item Temperature Humidity Altitude
Condition
Spec
OK N.A Remark
Operating
0 ~ +40 ℃
Non-operating
-20 ~ +60 ℃
Operating
10 ~ 90%
√ √ √
Non-operating
10 ~ 90%
Operating
0~3048m (10,000ft)
Non-operating
0~12,192m (40,000ft)
3.5 Transportation
- 10 -
Non-condensing
√ √ √
Non-condensing Without packing With packing
Item
Condition
Spec (1) Sine wave
OK N.A Remark
5~200Hz 1.5G, 1 octave/min, 15 min dwell on each resonant frequency, all primary axis, one sweep (30 min minimum) per orientation, total of 90+ min.
(2) Random 5 ~100 Hz, 0 dB/Oct. 0.015
(1) Vibration
Package, Non-Operating
g2/Hz 100 ~200 Hz, -6 dB/Oct. 200 Hz, 0.0038 g2/Hz Equivalent to 1.47 Grms, All primary axis, 20 min perorientation, total is 60 min.
√
(3) Procedure:
(2) Unpackaged Vibration
Confirmed sample with appearance and function ready before testing then compare with after test record as brightness, uniformity and contrast ratio. Perform random vibration after sinewave vibration test. Test Spectrum: 20 Hz 0.0185(g2/Hz) 200Hz 0.0185(g2/Hz) Unpackaged, Non-Operating Duration : 5 Minutes
√
Axis : 3 axis ( Horizontal and Vertical axis ,Z axis)
(3) Drop
(4) Shock
Package, Non-Operating Wooden package, NonOperating
91 cm Height (MP stage) (1 corner, 3 edges, 6 faces) Waveform: half sine Faces: 6 sides/ per orientation 3 shocks. Duration: <3ms Velocity accelerate: 75g
√ √
3.6 Electrostatic Discharge Requirements
Item
Condition
Spec
Electrostatic Discharge
IEC801-2 standard
Contact: 8KV Air: 15KV
Condition
Spec
OK N.A Remark
√
3.7 EMC
Item
Electric
TCO03 Magnetic - 11 -
Band 1 < 10 V/m Band 2 < 1 V/m Band 1 < 200nT Band 2 < 25nT
OK N.A Remark
√ √
FCC part 15J class B
EMI EN55022 class B
After Mass production under 1dBuv for constant measure. Besides DNSF and VCCI class-2 are optional.
√
3.8 Reliability
Item MTBF Prediction
Condition
CCFL Life time
At 25±2℃, under 6.0mA
Refer to MIL-217F
Spec
> 50,000 Hours 40,000 Hours (min)
OK N.A Remark
√
Excluding CCFL
√
See Note-4
Note-4: CCFL lifetime is determined as the time at which brightness of lamp is 50%. The typical lifetime of CCFL is on the condition at 6.0mA lamp current.
3.9 Audio performance
Item
Condition
Preamp + Power amp (1)Output power
Spec
@ 1KHz
OK
1 Wrms/CH
@ 1W 1KHz
(2)THD (@ 1W)
<1%
(3)S/N ratio
>40dB
N.A Remark
√ √ √
Speaker Driver (1)Nominal impedance (2)Rated input power
@ 1KHz
8 ± 15% ohm 1 W/CH
SPL-10dB
(3)Frequency response (4)Output sound pressure level
500~20KHz
1W 0.5M
80 ± 3 dB 35x16mm2
(5)Dimension of box
√ √ √ √ √
Audio Control (1)Volume range
0 ~100 levels
(2)Mute
On/Off
√ √
4. LCD Characteristics 4.1 The Physical definition & Technology summary of LCD panel
Item
Condition
Spec AUO AUO M201SP01 V1
LCD Panel Supplier Panel type of Supplier Screen Diagonal
511.13mm(20”)
Display area
Unit=mm
Physical Size
Unit=mm
459.4(H) x296.4(V) x 18.3(D)
Weight
Unit=gram
2100(typ.)
Technology Pixel pitch
433.44(H) x 270.90(V)
TN type Unit=mm - 12 -
0.258(H) x 0.258(W)
OK N.A Remark
√ √ √ √ √ √ √
√
Per one triad
Pixel arrangement
R/G/B vertical stripe
Display mode
Normally White
Support color
16.7 Millions colors
√ √ √
6 bit + FRC
4.2 Optical characteristics of LCD panel
Item
Unit
Conditions
Min.
Typ.
Max.
Horizontal (Right) CR = 10 (Left) Vertical (Up) CR = 10 (Down) Normal Direction Rising Time Falling Time Rising + Falling Gray to Gray(Avg.) Red x Red y Green x Green y Blue x Blue y White x White y 9 points measurement
70 70 70
85 85 85
-
Viewing Angle
[degree] [degree] [degree] [degree]
70 600 0.61 0.31 0.26 0.58 0.11 0.04 0.28 0.30 70
85 1000 3.6 1.4 5 2 0.64 0.32 0.29 0.61 0.14 0.07 0.31 0.33 80
240
300
Contrast ratio [msec] [msec] [msec] [msec]
Response Time
Color / Chromaticity Coordinates (CIE)
Color Coordinates (CIE) White [%] Luminance Uniformity 2 White Luminance @ CCFL [cd/m ] 6.0mA (center) [%] Crosstalk (in 75Hz)
Remark
5.7 2.3 8 0.67 0.37 0.32 0.64 0.17 0.10 0.34 0.36
1.5
* The test methods for the above items’ definition, please refer to the relative panel specification.
5. User Controls 5.1 User’s hardware control definition
Item Power button
Condition
Spec
OK N.A Remark
√ √ √ √ √
Enter button Up/Inc. button Down/Dec. button Menu button
√ √
Mode button Input Select button
√
iKey button
√
Mute button
5.2 OSD control function definition - 13 -
Item Auto Adjust
Condition
Spec
OK N.A Remark Auto-Geometry
√ √ √ √ √ √ √
5800K User: Separate R/G/B adjustment
√
OSD Position
OSD Horizontal position OSD Vertical position
√
OSD Time
From 5 sec to 30 sec
√ √ √ √
Brightness Contrast Horizontal Position Vertical Position Pixel Clock Phase 9300K 6500K
Color
OSD Lock Language
8 languages / 14 languages
Recall
Recall All Standard / Movie / Dynamic / Photo D-sub DVI
Mode Input Select
Sharpness Display Information
For input timing
√ √
√ √ √ √
Volume Mute
√
Hot key for Brightness
√
Hot key for Contrast
√
Hot key for Volume Hot key for Input Select Hot key for Mode
√
√
* The detailed firmware functions’ specification, please refer to C212 S/W spec. document.
6. Mechanical Characteristics 6.1 Dimension
Item
Condition
Spec
OK N.A Remark
Bezel opening Monitor without Stand
W x H x D mm
435.94*273.4 mm 472.5*375.8*62.2mm
√ √
Monitor with Stand
W x H x D mm
472.5*375.8*164.4mm
√
L x W x H mm
Carton Box (outside)
538*446*134
√
Tilt: -2 ~ +22 degree
Tilt and Swivel range
Swivel: 0 degree - 14 -
√
6.2 Weight
Item Monitor (Net)
Condition
Monitor with packing (Gross)
Spec
OK N.A Remark
4.07Kg 5.35 Kg
√ √
Spec
OK N.A Remark
6.3 Plastic
Item
Condition
>ABS<,94-HB
√
Heat deflection To
ABS
65 ℃
√
UV stability
ABS
Delta E < 8.0
√
Flammability
MPRII: ABS
Resin
√
SD0150/GP35/D350/PA757) RC partial texture MT-11020
Texture
MT-11010
√
Color
Y7054A
√
Spec
OK N.A Remark
Kraft
6.4 Carton
Item Color
Condition
Material
C Flute
√ √
Compression strength
220 KGF
√
Burst Strength
16 KGF/cm2
√
Stacked quantity
7 Layers
√
7. Pallet & Shipment 7.1 Container Specification
Stowing Type
ontainer With pallet
20'
40'
Quantity of products (sets) (Every container)
Quantity of Products (sets) (Every Pallet)
Quantity of pallet (sets) (Every Container)
780
Pallet A: 92
Pallet A: 5
Pallet B: 64
Pallet B: 5
Pallet A: 92
Pallet A: 11
1716 - 15 -
20'
Without pallet 40'
Pallet B: 64
Pallet B: 11
X
X
X
X
X
X
X
X
7.2 Carton Specification
Net Weight (Kg)
Gross Weight (Kg)
Dimension w/o Base W*H*D (mm)
Dimension w/ Base W*H*D (mm)
4.07Kg
5.35 Kg
472.5*375.8*62.2mm
472.5*375.8*164.4mm
Carton Interior Dimension (mm) L*W*H
Carton External Dimension (mm) L*W*H
528*430*124
538*446*134
8. Certification Item
Environment
Condition
Spec
OK N.A Remark
Green design
Qisda Doc. 715-C49
√
Blue Angel
German Standard
E-2000
Switzerland
EPA
USA Standard
PC-Monitor
√ √ √
TCO’99
√
TCO’03
√ √
Green Mark Microsoft Windows
PC98/99
√
DPMS
VESA
√
DDC 2B
Version 1.3
√
USB
External
- 16 -
ISO14000 Requirement
√
Safety
UL60950 3rd edition
CSA (Canada)
CAN/CSA-C22.2 No. 60950
Nordic / D.N.S.F
EN60950
FIMKO
EN60950
√
CE Mark
73/23/EEC
√
CB
IEC60950
√
CB
EN60950
√
EN60950 /
√
TUV/GS
EMC
X- Ray Requirement
√ √
EK1-ITB 2000:2003
CCC (China)
CB4943
√
GOST
EN60950
√
SASO
IEC60950
√
CE Mark
89/336/EEC
√
FCC (USA)
FCC Part 15 B
√
EN55022
Class B
√
CISPR 22
Class B
√
VCCI (Japan)
VCCI Class B
√
BSMI (Taiwan)
CNS 13438
√
C-Tick (Australia)
AS/ NZS CISPR22
√
DHHS (21 CFR)
USA X- Ray Standard
√ √
DNHW PTB
Ergonomics
√
UL (USA)
√
German X- Ray standard
TUV / Ergo
√
ISO 13406-2
√
prEN50279
√
- 17 -
3.2.1.
SCOPE
This document establishes the general workmanship standards and functional Acceptance criteria for LCD color monitor model G2000W Produced by BenQ Corporation. 3.2.2. PURPOSE The purpose of this publication is to define a procedure for inspection of the LCD monitor by means of a customer acceptance test, the method of evaluation of defects and rules for specifying acceptance levels. 3.2.3.
APPLICATION
The "Customer Acceptance Criteria" is applicable to the inspection of the LCD monitor, completely packed and ready for dispatch to customers. Unless otherwise specified, the customer acceptance inspection should be conducted at manufacturer's site. 3.2.4. DEFINITION The "Customer Acceptance Criteria" is the document defining the process of examining, testing or otherwise comparing the product with a given set of specified technical, esthetic and workmanship requirements leading to an evaluation of the "degree of fitness for use", including possible personal injury or property damage for the user of the product. 3.2.5.
CLASSIFICATION OF DEFECTS
The defects are grouped into the following classes: Critical defect A critical defect is a defect that judgment and experience indicate is likely to result in hazardous or unsafe conditions for individuals using, maintaining or depending upon the product. Major defect A major defect is a defect, other than critical, that is likely to result in failure, or to reduce materially the usability of the product for its intended purpose. Minor defect A minor defect is a defect that is not likely to reduce materially the usability of the product for its intended purpose, or is a departure from established standards having little bearing on the effective use of operation of the product. 3.2.6.
CLASSIFICATION OF DEFECTIVES
A defective is a product which contains one or more defects. The defective will be classified into following classes: Critical defective A critical defective contains one or more critical and may also contain major and/or minor defects. Major defective A major defective contains one or more defects and may also contain minor defects but contains no critical defect. - 18 -
Minor defective A minor defective contains one or more minor defects but contains no critical and major defects. 3.2.7.
EXPRESSION OF DEFECTIVES Number of defects Percent of defects = ------------------------------------------ X 100% Number of products inspected
3.2.8.
INSPECTION STANDARD
Unless otherwise specified, the inspection standard will be defined by MIL- STD-105E(ISO-2859), SINGLE SAMPLING PLAN. level II is in use all the time , inspection levels are normal ,reduce and tighten . Acceptance Quality Level When a critical defect is found, this must be reported immediately upon detection, the lot or batch shall be rejected and further shipments shall be held up pending instructions from the responsible person in relevant organization.
Major Defective: 0.4 AQL Minor Defective: 1.50 AQL
3.2.9.
GENERAL RULES
The inspection must be carried out by trained inspectors having good knowledge of the meaning of "fitness for use". The inspection must be based upon the documents concerning the completely assembled and packed product When more defects appear with the same cause only the most serious defect must be taken into account. Defects found in accessories packed with the product as connecting cables, plugs, adapters and the like, and being inspected as a part of the complete product, must be included in the evaluation. The evaluation must be within the limits of the product specification and, for not specified characteristics, be related to the design model, limit samples or judgment of a jury of experts. Faults must be demonstrable. 3.2.10.
TEST CONDITIONS
Unless otherwise prescribed, the test conditions are as follows:
. Nominal mains voltage Temperature: +5~+35℃ . Warm up time : 30minutes minimum . . Visual inspection shall be down with the distance from eyes to the sample 35-50 cm . . Display mode: Primary mode 1280*1024 3.2.11.
TEST EQUIPMENTS 1. PC with display adapter or other specific display adapter which is agreed upon by both parties 2. Test program by BenQ 3. Ruler 4. Power saving test tool
- 19 -
5. Minolta color analyzer ( CA-110 or BM – 7 )
3.2.12. VISUAL INSPECTION CRITERIA
1. PACKING 2. ACCESSORIES 3. APPEARANCE 4. AC POWER AND SIGNAL CABLE 5. INTERIOR OF THE PRODUCT No 1 1.1 1.2
1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 1.14 1.15 2 2.1 2.2 3 3.1 3.2 3.3
Description Packing Wrong packing material Carton damaged(over 6cm dia).wet, badly taped or stapled, product will not arrive in good condition at customer Carton damaged(3cm to 6cm dia), badly taped or stapled , product will arrive in good condition at customer Wrong marking of trade mark Wrong marking of model number Wrong serial # marking on carton Product wrongly placed in box ( upside down ) Broken polyfoam or PU foam Broken packing bag Wrong size or poor printing for artwork/character Bar-code wrong, missing, or damaged Label on box missing or damaged Strange object in the box Unit not corresponding to model stated on external label Superficial breaking 5 ~ 10 cm dia Accessories Missing accessory parts Wrong Accessory parts Appearance of product Incorrect color of cabinet Incorrect color of tilt/swivel base Wrong logo or name plate
No 3.4 3.5 3.6 3.7 3.8 3.9
Description Poor print of logo or name plate Label on product Wrong or missing Scratched or dirty but legible spec. label GAP between LCD and front bezel is over 2.0 mm Dot/area discolor over 1mm dia. in front or over 2mm dia. in other areas Cabinet warped, sagged or bulging >0.5% of surface length
Class Major Major Minor Major Major Major
3.10 3.11 3.12 3.13
Cabinet warped, sagged or bulging noticeable but <0.5% of surface length Sharp stud or edge, which can cause damage not safe Finishing of piece parts will not arrived in good condition at the customer Cabinet step ( between housing and bezel ) >1.0mm , < 1.5mm
Minor Major Major Minor
3.14 3.15 3.16 3.17 3.18
Cabinet step ( between housing and bezel ) >1.5mm Wiring or fixing cord comes out of cabinet or jammed Auxiliary material used during production not removed Cabinet parts come loose during normal handling, not safe Cabinet parts come loose during normal handling, but safe
Major Major Major Critical Major
1.3
- 20 -
Class
Major Minor Minor Major Major Major Major Major Major Major Major Major Major Major Minor Major Major Major Major Major
3.19 3.20 3.21 3.22 3.20 3.21 3.23 3.24 3.25 3.26
Tilt/swivel too flexible/not working Tilt/swivel stiff Dirty front bezel and housing can’t remove Dirty front bezel and housing removable easily Sticker or loose user control switch which will not function correctly Missing knob or switch, not safe Missing knob or switch, but safe Poor functional user controls in mechanical Unreadable printing of user controls label Rubber foot missing
Major Minor Major Minor Major Critical Major Major Major Major
3.27 3.28 3.29 4 4.1 4.2 4.3 4.4 4.5 4.6
LED wrong material or missing LED sagged >1.0mm or bulging>0.5mm Wrong S/N between spec. label and monitor display AC power and signal cable AC power or connector not correct or damaged, not safe AC power or connector not correct or damaged, but safe Signal cable contact pin dirty Signal cable plug dirty or surface damaged, but safe Cable crack Cable scratch ( wire not exposed ), or dirty
Major Minor Major Critical Major Minor Minor Major Major
No 4.7 4.8 5 5.1 5.2 5.3
Description AC-DC adapter no function Signal cable contact pin dirty Interior of the product Use Non-QVL ( Qualify vendor list )component Wrong parts, broken component, but safe Foreign material Conductive (Has potential to short circuit) Non-conductive (Moveable) 5.4 Missing hardware, component or screw, stripped screw 5.5 Loose hardware/screw or insufficient torque 5.6 Poor wire routing, which is no concerned on EMI 5.7 Cold soldering/loose connections (Electrical) 5.8 Wires and mechanical structure do not meet UL/CSA or TUV 5.9 Wrong parts, broken component, not safe 5.10 Component burn 3.2.13. OPERATIONAL INSPECTION CRITERIA
1. TEST PATTERN 2. SPECIFICATIONS 3. OPERATIONAL INSPECTION CRITERIA
3.2.13.1.List of test pattern KEY A
PATTERN FULL WHITE
- 21 -
TEST ITEM H - Size , V – Size .Viewing Angle Light Output Impurity, Spot check Contrast Ratio Brightness adjust Range
Class Minor Major
Major Major Major Minor Major Major Minor Major Critical Critical Critical
E
DARK
Background, Spot check
F
FULL W , R , G , B
G
256 COLORS
Color Check
H
16 GREY
Gray Check
H
Impurity, Spot check .CIE Coordinate check
Black/White stripe pattern
Item Max. support Pixel rate Max. Resolution
Condition
Electric characteristics
Spec
OK N.A Remark
√
165 MHz 1680 x 1050 < 3.1 ns (50% of minimum pixel clock period)
√ √
1680 x 1050 @ 60Hz (max. support timing)
Settling Time after overshoot /undershoot
< 5% final full-scale value √
Refer to VESA VSIS Standard V1R1
Overshoot/Undershoot
< 12% of step function voltage level over the full voltage range
Refer to VESA VSIS Standard V1R1
Rise time + Fall time
- 22 -
√
Actual Output
Input Timing Resolution
Horizontal F r e u e nc K H z
Vertical F re uenc
Dot Clock F re u en c MH z
Actual display Resolution
OK N.A Remark
640x350
31.47(P)
70.08(N)
25.17
1280x943
√
DOS
720x400
31.47(N)
70.08(P)
28.32
1280x1024
√
DOS
640x480
31.47(N)
60.00(N)
25.18
1280x1024
√
DOS
640x480
35.00(N)
67.00(N)
30.24
1280x1024
√
Macintosh
640x480
37.86(N)
72.80(N)
31.5
1280x1024
√
VESA
640x480
37.50(N)
75.00(N)
31.5
1280x1024
√
VESA
800x600
37.88(P)
60.32(P)
40.00
1280x1024
√
VESA
800x600
48.08(P)
72.19(P)
50.00
1280x1024
√
VESA
800x600
46.86(P)
75.00(P)
49.50
1280x1024
√
VESA
832X624
49.72(N)
74.55(N)
57.29
1280x1024
√
Macintosh
1024x768
48.36(N)
60.00(N)
65.00
1280x1024
√
VESA
1024x768
56.48(N)
70.10(N)
75.00
1280x1024
√
VESA
1024x768
60.02(P)
75.00(P)
78.75
1280x1024
√
VESA
1024X768
60.24(N)
74.93(N)
80.00
1280x1024
√
Macintosh
1152x864
67.50(P)
75.00(P)
108.00
1280x1024
√
VESA
1152x870
68.68(N)
75.06(N)
100.00
1280x1024
√
Macintosh
1152x900
61.80(N)
66.00(N)
94.50
1280x1024
√
SUN 66
1152x900
71.81(N)
76.14(N)
108.00
1280x1024
√
SUN
1280x1024
64.00(P)
60.00(P)
108.00
1280x1024
√
VESA
1280x1024
75.83(N)
71.53(N)
128.00
1280x1024
√
IBM1
1280x1024
80.00(P)
75.00(P)
135.00
1280x1024
√
VESA
1280x1024
81.18(N)
76.16(N)
135.09
1280x1024
√
SPARC2
Hz
1680x1050
75 60 162 1680x1050 VESA √ Note: “P”, “N” stands for “Positive”, “Negative” polarity of incoming H-sync/V-sync (input timing).
3.2.14. PANEL INSPECTION CRITERIA
Inspection Item
Specification
Line defect
Can’t be seen
Bright Dot
<=2 dots
- 23 -
Green bright dots
<=2 dots
Dark dots
<=4 dots
Total dots defect
<=5 dots
Continuous Defect
Two continuous bright dots(vertical ,horizontal, oblique):<=1 pair Exclude continuous green-green bright dots Three or more continuous bright dots (vertical, horizontal ,oblique):Not allowed Two continuous dark dots(vertical ,horizontal, oblique):<=2 pairs Three or more continuous dark dots(vertical, horizontal, oblique):Not allowed Distance between 2B dots:>=15mm Distance between 2Ddots:>=15mm Distance between B and D dot :>=10mm
- 24 -
- 25 -
- 26 -
- 27 -
- 28 -
- 29 -
- 30 -
5.1.1. Hardware prepared: a. Print Board (or not);
b.
I2CBoard.
Print Cord
I2C Board
And I2C Board Jump wire should follow J10 (short), J9 (open), J8/J7/J6/J5 (3 and 2 pin short)
Connected to print cord and PC
- 31 -
Connected to Display Signal Cable
If you have no print cord, you can insert I2C BD into print port on PC directly.
Connect to LCD Monitor PC Print port
5.1.2. Software Prepare: Please set up attached Myson ISP software. Operation sequence as following: a.
Open the execute file and enter into software operation surface.
- 32 -
b. Select MTV512M64 as your ISP Type
- 33 -
c. Click ‘’Create Security File ‘’ and input commands
- 34 -
- 35 -
d. Click ‘’Load MCU File ‘’ and select your object file
- 36 -
- 37 -
e. Follow the follow steps in turn
f. Click ‘’ Run’’ icon for updating firmware.
- 38 -
- 39 -
A. Preparation:
1.
Setup input timing ICL-605( 1280x1024@75Hz ), Pattern:5-Mosaic.
2.
Setup unit and keep it warm up at least 30 minutes.
B. Timing adjustment:
1. Enter factory setting area (press “ENTER”, “MENU” and then press “SOFTPOWER”). 2. Check the settings to following values: Contrast = 50 Brightness = 90 Color = User Mode Senseye mode = Standard Language = English Burn In =ON Then, turn off the monitor power. 3. Turn on power enter user area. C. Color balance adjustment:
1.
Enter factory setting area (press “ENTER”, “MENU” and then press “SOFTPOWER”).
2.
Setup input timings WS7(1280x1024@75Hz), Pattern:5-Mosaic.
3.
Setup Color mode “User Mode”.
4.
Press “I-KEY”( or Left key directly), and then OSD will show “White Balance” item and then press “ENTER” button to do auto color.
- 40 -
D. Color adjustment:
1. Setup input timing ICL-605, white pattern. 2. Confirm auto color adjustment had already done. 3. Measure color temperature by Minolta CA-110 (or equivalent equipment). 4. Check the color temperature Bluish, Reddish & Normal. The color temperature specification as follows: White Balance
X+-
0.283+(-) 0.015
(Bluish, 9300K set on OSD) White Balance (Reddish, 5800K set on OSD) White Balance (sRGB, 6500K set on OSD)
Y+X+Y+X+-
0.297+(-) 0. 326+(-)0.015 0.015 0. 342+(-) 0.015 0.313+(-) 0.015
Y+-
0. 329 +(-) 0.015
5. Setup input timing , 32 -Gray pattern. To check if there are any abnormal display problems of preset timing modes . - 41 -
Check the following preset timings with General pattern: No. 1 2 3 4 5 6 7 8
Mode 720×400 @ 70Hz 640×480 @ 60Hz 640×480 @ 75Hz 800×600 @ 60Hz 800×600 @ 75Hz 1024×768 @ 60Hz 1024×768 @ 75Hz 1152x864 @ 75Hz
H 31.468 31.469 37.500 37.879 46.875 48.363 60.023 67.500
V 70.8 59.940 75.000 60.317 75.000 60.004 75.029 75.000
9 10
1280×1024 @ 60Hz 1280×1024 @ 75Hz
63.981 79.976
60.020 75.025
6. Checking if the picture is no good, reject this monitor. 7. To check the power consumption by disabling “burn-in mode” setting 8. To clear user data and program complete DDC data to monitor by IIC bus communication. E. Writing EDID file: 1. 2. 3. 4. 5.
Setup a PC with DDC card. Connect PC to monitor with a D-sub(DVI) signal cable. Please refer to the C212 for the correct EDID file. Runs the writing program to write the EDID file into EEPROM . Read EEPROM data and confirm it to match with the C212 document definition.
PC Host will send 0x7C IIC slave address and then following 4 bytes command Byte1 Byte2 Byte3 Byte4
I2C Send Command
Write Contrast to MCU RAM A 55 Data C cksum Write Brightness to MCU RAM A 56 Data C cksum Write Red Gain toMCU RAM A 57 DataC Write Green Gain to MCU RAM A Write Blue Gain to MCU RAM A
cksum
58 Data C cksum 59 DataC cksum
Read Contrast from MCU RAM Read Brightness from MCU RAM Read Red Gain from MCU RAM by color index Read Green Gain from MCU RAM by color index Read Blue Gain from MCU RAM by color index Write C1 (Bluish) R-Gain Data to EEPROM
C3 C3
55 56
Write data to MCU RAM and update the related register to refresh the screen immediately. Don’t store data to EEPROM.
XX cksum XX cksum
C3
57
XX cksum
C3 C3 AA
58 59 3C
XX cksum XX cksum Data cksum
Write C1 (Bluish) G-Gain Data to EEPROM Write C1 (Bluish) B-Gain Data to EEPROM
AA AA
3D 3E
Data cksum Data cksum
Write C2 (Normal) R-Gain Data to EEPROM Write C2 (Normal) G-Gain Data to EEPROM Write C2 (Normal) B-Gain Data to EEPROM
AA AA AA
4C 4D 4E
Data cksum Data cksum Data cksum
Write C3 (Reddish) R-Gain Data to EEPROM Write C3 (Reddish) G-Gain Data to EEPROM
AA AA
5C 5D
Data cksum Data cksum
Write C3 (Reddish) B-Gain Data to EEPROM Write User R-Gain Data to EEPROM
AA AA
5E 6C
Data cksum Data cksum
Write User G-Gain Data to EEPROM
AA
6D
Data cksum
- 42 -
OK N.A. Remark
Base on current color index to read back the right gain value.
Write User B-Gain Data to EEPROM
AA
6E
Data cksum
Write Cx(sRGB) R-Gain Data to EEPROM Write Cx(sRGB) G-Gain Data to EEPROM Write Cx(sRGB) B-Gain Data to EEPROM Write Contrast to EEPROM Write Brightness to EEPROM
AA AA AA AA
7C 7D 7E 92 93
Data cksum Data cksum Data cksum Data cksum Data cksum
AA
Reserved for some model have extra color temperature
1=C1/9300/Bluish, 2=C2/6500/sRGB/, 3=C3/5800/Reddish, Write C/T index to EEPROM Write OSD-Hpos to EEPROM Write OSD-Vpos to EEPROM
AA AA AA
94 95 96
1~4 cksum Data cksum Data cksum
Write Language to EEPROM
AA
97
0~17 cksum
Write EEPROM OSD Timer Write EEPROM Volume
AA
98 99
Data cksum Data cksum
AA
Write EEPROM Gamma index
AA
Write OSD Transparency to EEPROM
AA
9A 9E
Data
cksum
AA A3
9F 3C
Data cksum XX cksum
Read C1 (Bluish) G-Gain data from EEPROM Read C1 (Bluish) B-Gain data from EEPROM Read C2 (Normal) R-Gain data from EEPROM
A3 A3 A3
3D 3E 4C
XX cksum XX cksum XX cksum
Read C2 (Normal) G-Gain data from EEPROM
A3
4D
XX cksum
Read C2 (Normal) B-Gain data from EEPROM Read C3 (Reddish) R-Gain data from EEPROM
A3 A3
4E 5C
XX cksum XX cksum
Read C3 (Reddish) G-Gain data from EEPROM Read C3 (Reddish) B-Gain data from EEPROM Read User R-Gain data from EEPROM
A3 A3 A3
5D 5E 6C
XX cksum XX cksum XX cksum
Read User G-Gain data from EEPROM Read User B-Gain data from EEPROM
A3 A3
6D 6E
XX cksum XX cksum
Read Cx (sRGB)R-Gain data from EEPROM Read Cx (sRGB) G-Gain data from EEPROM Read Cx (sRGB) B-Gain data from EEPROM Read Contrast from EEPROM
A3 A3 A3 A3
7C 7D 7E 92
Read Brightness from EEPROM
A3
93
XX cksum XX cksum XX cksum XX cksum XX cksum
- 43 -
A3
94
0=EN, 1=FR, 2=DE, 3=IT, 4=ES, 5=JA, 6=繁中, 7=簡中 (Also Update MCU RAM) European version: 0=English, 1=French, 2=Deutsch, 3=Italian, 4= Espanol, 5= Polish, 6= Czech, 7= Hungarian, 8= Serbocroatian, 9= Romanian, 0A= Netherlands, 0B= Russian, 0C= Swedish, 0D= Protuguese
For model with Gamma curve selection function
Data cksum
Write OSD Rotation to EEPROM Read C1 (Bluish) R-Gain data from EEPROM
Read C/T index from EEPROM
4=User, 5=Cx
XX
cksum
Reserved for some model have extra color temperature
1=C1/9300/Bluish, 2=C2/6500/sRGB/, 3=C3/5800/Reddish, 4=User, 5=Cx
Read OSD-Hpos EEPROM Read OSD-Vpos from EEPROM
A3 A3
95 96
XX XX
cksum cksum
Read Language from EEPROM Read OSD Timer from EEPROM Read Volume from EEPROM
A3 A3 A3
97 98 99
XX XX XX
Read Gamma index from EEPROM Read OSD Transparency from EEPROM
A3 A3
9A 9E
XX cksum XX cksum
A3 C01 C 02
9F XX cksum XX cksum XX cksum
Read OSD Rotation from EEPROM Change Color Temp. to C1/9300K/Bluish Change Color Temp. to C2/6500K/sRGB
C C
Change Color Temp. to C3/5800K/Reddish C C 03 Change Color Temp. to User C 04 XX cksum C Change Color Temp. to Cx C 05 XX cksum C
cksum cksum
0=EN, 1=FR, 2=DE, 3=IT, 4=ES, 5=JA, 6=繁中, 7=簡中 (Also Update MCU RAM) European version: 0=English, 1=French, 2=Deutsch, 3=Italian, 4= Espanol, 5= Polish, 6= Czech, 7= Hungarian, 8= Serbocroatian, 9= Romanian, 0A= Netherlands, 0B= Russian, 0C= Swedish, 0D= Protuguese
cksum
XX cksum
For model with Gamma curve selection function
Change C/T immediately.And store C/T index to EEPROM. Reserved
Change Input Source to D-Sub D 01 XXC cksum Change Input Source to DVI D 02 XX cksum C On burn in mode
CE
01
XX cksum
Off burn in mode Monitor is forced power saving
CE CF
XX* XX cksum 01 XX cksum
Store data to EEPROM XX* = Non “1” value Store data to EEPROM
Monitor wake up from power saving Change Sense-Eye mode to Standard
CF C0
XX* 00
XX cksum XX cksum
XX* = Non “1” value
Change Sense-Eye mode to Movie1 Change Sense-Eye mode to Movie2
C0 C0
01 02
XX cksum XX cksum
Change Sense-Eye mode to Photo Set luminance sensor mode to Off
C0 C1
03 00
XX cksum XX cksum
Change Sense-Eye mode immediately. And store the index to EEPROM.
Set luminance sensor mode to Bright Set luminance sensor mode to Moderate Set luminance sensor mode to Dim
C1 C1 C1
01 02 03
XX cksum XX cksum XX cksum
Increase ADC R-Offset2 Increase ADC G-Offset2
AC AC
23 24
Data cksum Data cksum
Increase ADC B-Offset2 Increase ADC R-Gain
AC AC
25 33
Data cksum Data cksum
Increase ADC G-Gain Increase ADC B-Gain
AC AC
34 35
Data cksum Data cksum
Decrease ADC R-Offset2 Decrease ADC G-Offset2 Decrease ADC B-Offset2
AD AD AD
23 24 25
Data cksum Data cksum Data cksum
Decrease ADC R-Gain
AD
33
Data cksum
- 44 -
Change luminance sensor mode immediately. And store the index to EEPROM.
Decrease ADC G-Gain
AD
34
Data cksum
Decrease ADC B-Gain Read ADC R-Offset2 Read ADC G-Offset2 Read ADC B-Offset2 Read ADC R-Gain Read ADC G-Gain Read ADC B-Gain User mode to factory mode
AD AE AE AE AE AE AE 1A
35 23 24 25 33 34 35 5A
Data cksum XX cksum XX cksum XX cksum XX cksum XX cksum XX cksum XX cksum
Auto Color (Offset1, Offset2, Gain)
1B
5A
XX cksum
Copy EDID Serial number to EEPROM 1C Factory mode to User mode 1E Clear user mode and factory recall 1F Write EDID data to MCU DDC RAM 55 Copy DDC RAM data to EEPROM BB Drive WP pin to low to enable write DDC IC 55 Drive WP pin to high to disenable write function BB
5A 5A 5A NA
XX cksum XX cksum XX cksum NA NA
NA NA NA
NA NA NA
NA NA NA
Switch DDC bus to
DDC IC
44
NA
NA
NA
Switch DDC bus to Change Senseye Mode
DDC IC
NA
For specified “Industry Customer” model. Store data to EEPROM For MTV312 MCU type For MTV312 MCU type For stand alone DDC IC For stand alone DDC IC For input signal with multiinput source For input signal with multiinput source
33
NA
NA
C0
0~3
XX cksum
Change Power Status
D0
Data
XX cksum
PowerOFF: Data=AA PowerON: Data=Other Value
Change Language Type
D1
Data
XX ckssum
Asia: Data=AA European: Data=Other Value
Read EEPROM Bank 0
B0
Address
XX cksum
Read EEPROM Bank 1 Read EEPROM Bank 2
B1 B2
Address
XX cksum XX cksum
Read EEPROM Bank 3 Write EEPROM Bank 0 Write EEPROM Bank 1
B3 B8 B9
Address
Address
XX cksum Data cksum Data cksum
Write EEPROM Bank 2
BA
Address
Data cksum
Write EEPROM Bank 3
BB
Address
Data cksum
Address
Address
(For 24C08 type) (For 24C08 type)
(For 24C08 type) (For 24C08 type)
Note A: Byte4 (cksum) = Byte1 + Byte2 + Byte3 Note B: Data = The value write to MCU or EEPROM Note C: XX = don't care, any value (<=0xFF). When PC Host sends 0x7D command to MCU, MCU must return as following (2 bytes) Return Code Checksum error code Normal return code If normal return code is exact FCh - 45 -
R-Byte1
R-Byte2
FC
AA
the above Byte3 (/data)
FC
FC
CF
The G2000W consists of a LCD module with 4 lamps, a power board including an inverter, a control board, and a LED board. The block diagram is shown as below.
- 46 -
- 47 -
- 48 -
- 49 -
- 50 -
A-1.) Interface board diagram:
(a) Circuit operation theory:
A basic operation theory for the analog interface board is to convert input signal into digital RGB. Analog RGB signals are converted to digital signals through ADC circuit. The microprocessor RTD2549TD receives video data and optimizes the image automatically. TSUMU5RHK integrated ADC/PLL and an Ultra-Reliable DVI compliant digital receiver to deliver a high-quality solution for mainstream dual input monitors. (b) IC introduction:
1.) DDC (Display Data Channel) function: We use DDC IC to support DDC/2B function. DDC data is stored in 24C02(EEPROM). Those data related to LCD monitor specification. PC can read them by “SDA” and “SCL” serial communication for I²C communication for DDC2B. 2.) RTD2549TD IC: There are triple ADC(up to 200MHz ), LVDS transmitter ,Scaling, DIGITAL VIDEO INPUT, and OSD functions in the RTD2549TD IC. Scaling IC is revolutionary scaling engine, capable of expanding any source resolution to a highly uniform and sharp image, combined with the critically proven integrated 8 bit triple-ADC and patented Rapid-lock digital clock recovery system. It also support detect mode and DPMS control. 3.) EEPROM: We use 24C16 to store all the adjustable data and user settings and use 24C02 to store D-SUB EDID data. A-2.) Control board introduction:
There are 8 keys for user's control which includes “Power” “i key”, “Menu/Enter”, “Exit”, “Down” and “Up” keys. The following descriptions are the introduction of these keys. (1) “Power” : For monitor power turn on/off (2)" Enter " key: For enter sub-menus or select items. (3)Up/Plus key: For up select and increase adjustment (4)Down/Minus key: For down select and decrease adjustment (5)" Menu/Exit " key: Back to main menus (auto save), or leave OSD (6)" i - key ": For auto adjust vertical position, phase, horizontal position and pixel clock.
- 51 -
A-3.) Power board diagram:
Rectifier and filter
EMI Filter
Isolation power transformer
PWM controller
Rectifier and filter
Switching element
Rectifier and filter
Inverter circuit
To panel
Audio circuit
Feedback Isolation
Fig.1 #1 EMI Filter
This circuit (Fig. 2) is designed to inhibit electrical and magnetic interference for meeting FCC, VDE, VCCI standard requirements. L4
2
1
t
L5
L3
TR601 L602
NTC 8OHM
1
4
2 C603 2200P
N3
3 19MH
N2
C604 2200P
2
1
3
4
300U
L601
C602 0.22U L2
N1
Fig2
#2 Rectifier and filter
AC Voltage (90-264V) is rectified and filtered by BD601, C605 (See Fig 3) and the DC Output voltage is 1.4*(AC input). (See Fig.3)
- 52 -
3
BD601 GSIB4A60-LF
~
E1 4
+
-
1 1
~
+
2 2
C605 120U 450V
Fig.3 #3 Switching element and Isolation power transformer
When the Q601 turns on, energy is stored in the transformer. During Q601 turn-off period, the stored energy is delivered to the secondary of transformer. R607, C607 and D601 is a voltage-snubber circuit. R615 is current sense resistor to control output power. (See Fig.4) L605 E2 45 OHM
R607 68K J
C607 1000P K
K
T601
2
E4
10
D601 UF4007-LF
A
3
E5 L604 45 OHM
7 E3 1 D602 EGP10D K
A
9 L608 45 OHM
4
D
G
S
Q601 2SK3530-01MR
5
8 350U
R615 0.22
Fig.4
#4 Rectifier and filter
D701,D702,C701,C702,C703 are used to produce DC output. (See Fig.5)
- 53 -
A1 J T601 1J.20273.081 1 10 9
A2 D701 YG862C15RSC A1 J A2
V-INVERTER
1 +
3
R701 100
8 6 2
R702 100
D702 YG862C15RSC
2
C704
C705
1000P K
1000P K
1
C701 470U 35V RC1820
+
2
1
C702 470U 35V RC1820
+
2
C703 470U 35V RC1820
4
5
Fig5
#5 PWM Controller
The PWM controller NCP1200A implements a standard current mode architecture. With an internal structure operating at a fixed 60KHz.Where the switch time is dictated by the peak current setting-point. When the current setting-point falls below a given value. The output power demand diminish, the IC automatically enters the socalled skip cycle mode and provides excellent efficiency.
- 54 -
L605
E1
E2 45 OHM 1 +
L3 3 ~
2
BD601 GSIB4A60-LF
R607
R608 C605 330K 120U 450V
C607 1000P K
68K J
K
+
-
330K
1
A
3
E5 C2
R603 N2
18K
~
L604
R616
45 OHM
7
330K
2
E3
P02
D603 1N4148
1
R611
D602 EGP10D A
220
IC601
2
E6 K
NCP1203AP60 1
‧
ADJ
HV
FB
NC
1
1
8
R617
3
1K
CS
VCC
K
C611 47U 50V
+
9 L608 4 45 OHM
1
+
2
2
10
D601 UF4007-LF
R609 4
T601
2
E4
C1
C606 47U 50V
2
A
7
ZD601 15V 6
D604 1N4148
R623 2
4.7
D
1
P17 4
GND
DRV
5
G
C613 0.1U K
R612
S
47
Q601 2SK3530-01MR
5 2
R613 1K
R619 R610
8 350U
D605
R614
1N4148
18K
18K
R615
0.22
1
18K
C609 1000P J P01
Fig.6
#6 Feedback circuit
PC123 is a photo-coupler and TL431 is a shunt regulation. They are used to detect the output voltage change and be the primary and secondary isolation. When output voltage changes, the feedback voltage will be compared and duty cycle will be decided to control the correct output voltage. (See Fig.7)
- 55 -
R709
P01
4
IC602
R701
1
1K
330
R711 PC123FY1
10K F 3
2
R710 10K
K
R
C711 0.1U K
IC702
R712
LM431A
10K F
A
Fig.7
A-4.) Inverter Circuit Operation Theory An Intelligent CCFL Inverter C ontroller --- OZ9938
The OZ9938 is a high-performance, cost-effective CCFL (Cold Cathode Fluorescent Lamp) controller designed for driving large-size Liquid Crystal Display (LCD) applications requiring 2 to 6 CCFLs. The OZ9938 provides two drive signals for most power conversion topologies while maintaining high-efficiency operation. The PWM controller provides a soft-start operation, current and voltage regulation, over-voltage and over-current protection, high drive capability and multiple dimming functions (internal PWM or external PWM or analog dimming functions). The controller converts unregulated DC voltages into a nearly sinusoidal lamp voltage and current waveforms. The control logic provides a regulated ignition voltage and appropriate protection features for overvoltage or over-current conditions. The OZ9938 offers a high level of integration, while maintaining flexibility and high-efficiency operation that reduces external component heating, resulting in higher reliability and longer CCFL life. The proprietary design technique provides a simple, low-cost system solution.
Pin Assignment of OZ9938
- 56 -
IC801 1
2
2 ZD805 6.2V
C804 1U K
R808
10K
3
DRV1
PGND
VDDA
DRV2
TIMER
GNDA
+5VA
16
15
14
R812 34.8K F
1
1
R811 +
2
C818 2.2U K
4
DIM
OZ9938
CT
13
3M F
10V 5
ISEN
SSTCMP
12
R809 33K
6
7
R810
8
33K
VSEN
LCT
OVPT
ENA
NC1
NC2
11
10
C825 4700P J C829 56P K
9
C826 470P J
C820 0.047U K
P08
P07
- 57 -
C823 220P J
Push-Pull Configuration
1 +
2
C827 1U Z
C801 330U 35V RC1820
R814
R815
33
33
1206
1206
C806 2200P J
F1
C810 2200P J
T801
DRVA 6
7 C817
. 3
R829 C835 1000P
G 10 J
.
15P J
Q808 D 2SK3702JS
R837
10K
S
DRVB
4
. 1
F2 8
1J.26049.061
D Q809 2SK3702JS
R830 G 10 J
R838
10K
S
Fig.1
Fig. 1 the Q808, Q809 and T801 form a Push-Pull configuration. When Q808 turn on, then Q809 turn off Q808 turn off, then Q809 turn on. The result in T801 primary coil has an AC square waveform. Certainly, the secondary of T801 will produce high voltage AC square waveform. Through C817 filter capacitor, will output sin waveform. T802, C824 are also the same.
- 58 -
Feed-back Circuit
TP801
F1
TP802 R824
C814 5P D
2
3M
R846
.
7
2 A
C817 15P J
C845 C815
.
R832
2 2062204102
J
K
A D809 BAV99
(OPEN) 2700P J 1 A
4
.
D805 BAV70 J
10K F
3
1
1
1K J
T801
6
CN801 1
TP803
CN802 1
TP804 F2 8
2 R819 3M
1 2 2062204102
1J.26049.061
R847 1K J
R820 4.7K F
P08
C837 0.033U K
R825
R827
442
442
P07
C819 0.22U M
R823 100K
Fig.2
Fig. 2 shows the feedback circuit consists of a lamp, R846, D809, R825, R827 and C837. With the lamp current through D809, a half sin-waveform voltage signal is produced. We may get the Maximum value through R825/R827/C837. After OZ9938 gets the feedback voltage signal from PIN5, the duty of the PWM driver outputs is decided.
- 59 -
eSupport Guideline : 1. Please visit htt p: \\e Support.BenQ .com/v2 a nd enter “ Document” to s ee the deta ils. 2. Please find “ LCD Monitor ” and choo se “ G2400Wdownload.
- 60 -
1
8F.205B4.019 SCRW MACH HEX #4-40*0.3" NI
METAL
5.0±0.6
#4-40
X
2
8F.5A224.5R0 SCRW MACH FLAT M3*5L ZN
METAL
M3*0.5
#2
3
8F.XA356.6R0 SCRW TAP FLAT M4*6L B-ZN NYL
METAL
Side mount:3±0.6 Other: 4±0.6 9.0±1.0
M4*0.7
#2
4
METAL
11.0±1.0
M4*0.7
#2
5
8F.8A356.100 SCREW MACH FPH M4*10L B-ZN NYL 8F.5A356.8R0 SCRW MACH FH M4*8L B-ZN NYL
METAL
9.0±1.0
M4*0.7
#2
6
6K.L7204.001 ASSY SCREW M4*10L FP527
METAL
11.0±1.0
M4*0.7
#2
7
6K.L8810.001 ASSY SCREW M4*8L FP726A NLK ISU 6K.L8811.001 ASSY SCREW M4*6 FP726A NLK ISU (8F.5A456.6R0+4B.L7212.001) 8F.5A422.2R4 SCRW MACH FLAT-P M2*2.4L ZN
METAL
9.0±1.0
M4*0.7
#2
METAL
9.0±1.0
M4*0.7
#2
Plastic
1.0±0.1
1.4±0.05
#1
9
9 10
8F.VA512.4R0 SCRW TAP PH M2*4L NI
Plastic
1.0±0.2
1.6±0.05
#1
11
8F.XA213.8R0 SCRW TAP FLAT/PT M2.5*8L ZN
Plastic
4.0±0.5
2.0±0.05
#1
12
8F.WA314.8R0 SCRW TAP CAP M3*1.34P*8L B-ZN
PLASTIC
5.0±1.0
2.35±0.05
#2
13
8F.XA524.6R0 SCRW TAP FLT M3*6L NI
PLASTIC
4.5±0.5
2.35±0.05
#2
14
8F.XA314.8R0 SCRW TAP FLAT M3*1.34P*8L B-ZN
PLASTIC
4.5±0.5
2.35±0.05
#2
15
8F.XA326.100 SCRW TAP FLAT M4*10L B-ZN
Plastic
7.5±0.5
3.4±0.05
#2
16
8F.MA224.5R5 SCRW TAP FLAT-P M3*5.5L ZN
Metal
2.68±0.03
#2
17
8F.MA324.5R5 SCRW TAP FLAT-P M3*5.5L B-ZN
Metal
None tread:8~ 10 Have tread:6~8 Aluminum:4~5 None tread:8~ 10 Have tread:6~8 Aluminum:4~5
2.68±0.03
#2
2.68±0.03
#2
M4*0.7
#2
2.6±0.03
#2
18
8F.00273.6R0 ZN SCRW TAP PH F/10WSH M3*6L C-
Metal
19
8F.VZ526.6R0 SCRW TAP FLAT+EXTM4*6L ZN-W
Metal
None tread:8~ 10 Have tread:6~8 Aluminum:4~5 10±1.0
20
8F.00007.144
Aluminum
3.3±0.3
SCREW TAP CAP #4-40*10 ZN
- 61 -
(B)
1 2
8F.00274.8R0 8F.00003.143
SCREW FPH TAP M3*8L NI SCRW TAP PAN #4-40*3/8
Plastic Aluminum
5.0±1.0 3.3±0.3 No thread:8~10
2.35±0.05 2.6±0.03
#2 #2
3
8F.VG434.4R0
SCRW TAP PAN F/WSH M3*4L C-ZN
METAL
Have thread:6~8 Aluminum:4~5
2.68±0.03
#2
4
8F.1A356.100
SCRW MACH PAN M4*10L B-ZN NYLO
Metal
11.0±1.0
M4*0.7
#2
5
6K.L1G06.001
ASSY SCRW M4*12L L1740
METAL
11.0±1.0
M4*0.7
#2
6
8F.5A356.120
SCRW MACH FHM4*12L B-ZN NYL
METAL
11.0±1.0
M4*0.7
#2
7
8F.PA526.8R0
SCREW TAP PAN M4*8L NI
PLASTIC
7.5±0.5
METAL
Side mount:3±0.6 Other: 4±0.6
M3*0.5
#2
6.0±1.0
M3*0.5
#2
8 9
8F.5A554.5R0
SCRW MACH FLAT M3*0.5P*5L NI N
8F.EA524.6R0
SCRW TAP FH M3*6L NI
*SCREW Q’TYPE AND POSITION REFERRED TO C328. *NOTES: 1. (A)STANDARD SCREW TORQUE SPEC. 2. (B)SPECIAL SCREW TORQUE SPEC.
METAL
D-SUB Connector SCREW TORQUE SPEC.
.4±0.05
#2
DVI Connector SCREW TORQUE SPEC.
3. T: TAPPING SCREW. 4. M: MACHING SCREW.
SCREW D-SUB
SCREW TORQUE: 1.2±0.3 (KG-CM)
- 62 -
SCREW DVI
SCREW TORQUE : 1.2±0.3 (KGCM)
Fig. 1 Physical Dimension Front View and Side view
164.4
- 63 -