IC7205(*)
10V Q7303
24V
L
H
5V
MAIN 5V ON
OFF
24V
IC7218 15V H
L
H
ON Q7208
ON L
Q7301
OFF
Q7212
OFF
Q7214
H
L
Q7450
L
H
AP
18V IC7210
SOUND 18V ON
9V
MAIN 9V ON
OFF IC7209
9V
ON
MIX
(*) MAIN_5V is regulated from 24V in LX60L
BT 30V SUB 9V
IC7212
12V
PANEL 12V
Q7701
OFF Q7508
Q7702
A
L
H
PANEL_ON from FPGA
4-3-4. AP Board Operation
IC7205(*)
10V Q7303 H
24V
L
5V
MAIN 5V ON
OFF
24V
IC7218 15V H
L
H
ON Q7208
ON L
Q7301
OFF
Q7212
OFF
Q7214
Q7450
H
L
L
H
AP
18V IC7210
SOUND 18V ON
9V
MAIN 9V ON
OFF IC7209
9V
ON
MIX
(*) MAIN_5V is regulated from 24V in LX60L
BT 30V SUB 9V
IC7212
OFF Q7508
L
ON L
Q7702
H
Q7701
L
H OFF
12V
PANEL 12V ON H H
A PANEL_ON from FPGA
5. Explanation for Protection Circuit
5-1. Protection Trouble Cases When detecting irregular voltage, the circuit goes to stand-by mode to prevent damages by over-voltage or short circuit. The power LED starts blinking as below. Blinking Times
Contents
VCTP’s Pin No.
2
Inverter SOS
6
SUB_9V down
7
DOWN :10V, BT 30V, SOUND 18V, PANEL 12V, MAIN 5V, MAIN 9V Over Voltage : STB 3.3V,STB 1.8V 10V(*), 24V, SUB 9V, MAIN 5V, MAIN 9V, SOUND 18V, PANEL 12V
No.160 L:SOS
8
FPGA SOS
No.105 H:SOS
FPGA’s Pin No. No.6 H:SOS
No.1 L:SOS
LED Blink signal nce Once 3.0sec (interval)
Check Point (Example) LCD P board AP board A board
AP board A board DT board(**) Tuner LCD A board (*) except LX60L (**) LX600/60 only
Light
5-3. LED 6 times Blink
LED Blink : 6 times P
MAIN Trans -former
SUB_9V down AP
CN3 AP2 24V 1-3 1-3
IC7209 9V
A
AP4
A4
22
22
8
8
SUB_9V
L
IC4001 VCTP 1 SUB_9VSENSE
CN3 AP2 13
13
101 SUB_ON
L Relay Relay OFF
STB AC Trans Voltage
-former
Relay is turned off Standby mode
5-4. LED 7 times Blink (Case1) DOWN :10V(*),BT 30V,SOUND 18V,PANEL 12V,MAIN 5V,MAIN 9V Overvoltage : STB 3.3V,STB 1.8V
LED Blink : 7 times
IC1806 STB 3.3V D3862 3.3V D3868 IC1807 STB 1.8V 1.8V
H
MAIN9V D3865
AP
9V IC7218 18V IC7212 12V
L
H
ON Q3860
L
IC4001 VCTP 160 TV_SOS (L:SOS)
A3 17-19 21,22
SUB_ON
AP3 17-19 21,22
101
L
IC7205 5V IC7209
A
Q3861 ON
L
ON
MAIN5V D3866 IC7210 9V
STB 3.3V
Q3862
AP4 AP4 4 4
MAIN 5V 10V(*) D7220
SUB 9V
MIX
Q7210 ON
L
BT30V D7208
SOUND 18V D7469 Panel 12V
H
ON Q7211
Relay is turned off
Standby mode
(LED Blink : 7 times)
D7472 (*) except LX60L
5-6. LED 8 times Blink
LED Blink : 8 times P
AP MAIN3.3V
Q1801 Q1802 IC1805 IC1804
MAIN Trans -former
STB AC Trans Voltage
A
MAIN 2.5V MAIN 1.5V FPGA_OK 97
IC4001 VCTP
Relay OFF Relay
IC4004 FPGA
CN3 AP2 13
13
12
12
-former
Relay is turned off Standby mode (LED Blink : 8 times)
STB 7V
AP4
A4
8
8
3
3
L IC1806
STB3.3V
102 MAIN_ON 105 101 SUB_ON
H
6. Troubleshooting
6-1. Signal Trouble Cases We can classify the t he signal problem into three by checking whether Picture or Sound is abnormal. It is important to check c heck whether both picture trouble and sound trouble trouble occur, because we can judge the cause is panel or video processor or sound processor.
1) Picture NG and Sound OK 2) Picture OK and Sound NG 3) Picture NG and Sound NG
6-2-1. Picture NG and Sound OK (LX600/LX60 ALL Input Source Picture NG ?
No
Only AV Terminal Picture NG
Analog TV Picture NG
Yes
except 23LX60
)
A Board
AV Terminal Picture OK?
No A Board
Yes DT Board Only Digital TV Picture NG
DT Board
Only HDMI Input Picture NG
A Board LX600 only A
HDMI1 HDMI2
HDMI I/F Included OSD
DT
TUNER
ATSC LSI
PEAKS LITE Y/C
Digital
VCTP OSD OSD
No picture but OSD is displayed ? Yes A Board
AV1
No LCD Panel or A board
VIDEO SWITCH
AV2
VIDEO PROCESSOR
COMPONENT Monitor Out G
AV3
LVDS
FPGA
LCD Panel
6-2-2. Picture NG and Sound OK (32/26LX60C/L) ALL Input Source Picture NG ?
No
Only AV Terminal Picture NG
Analog TV Picture NG
Yes
A Board
AV Terminal Picture OK?
No A Board
Yes Tuner
Only HDMI Input Picture NG
A Board A HDMI1
HDMI I/F Digital
VCTP OSD TUNER OSD
No picture but OSD is displayed ? Yes A Board
AV1
No LCD Panel or A board
VIDEO SWITCH
AV2
VIDEO PROCESSOR
COMPONENT Monitor Out G
AV3 except 23LX60
LVDS
FPGA
LCD Panel
6-2-3. Picture NG and Sound OK (23LX60) ALL Input Source Picture NG ?
No
Only AV Terminal Picture NG
Analog TV Picture NG
Yes
A Board
AV Terminal Picture OK?
No A Board
Yes Tuner
Only HDMI Input Picture NG
A Board A HDMI1
HDMI I/F Digital
VCTP OSD TUNER OSD
No picture but OSD is displayed ? Yes A Board
AV1
No LCD Panel or A board
VIDEO SWITCH
AV2
VIDEO PROCESSOR
COMPONENT Monitor Out G
AV3 except 23LX60
LVDS
FPGA
LCD Panel
6-3-2. Picture OK and Sound NG (32/26LX60C/L) ALL Input Source Sound NG ?
No
Only AV Terminal Sound NG
Analog TV Sound NG
A Board
AV Terminal Sound OK?
No A Board
Yes DT Board
A HDMI1
Only HDMI Input Sound NG
HDMI I/F
A Board
VCTP
L
L/R Audio AMP
R
MSP SW L/R L/R IC2202
TUNER
Headphone or Audio OUT Sound NG ?
No A Board (Audio AMP) or Speaker
AV1
L/R
AV2
L/R
DVI (Analog)
L/R
Audio In Monitor Out
Yes G
A Board
L/R
AV3 Headphone
L/R L/R
L/R
AUDIO SWITCH
L/R
HP AMP
L/R
6-3-3. Picture OK and Sound NG (23LX60) ALL Input Source Sound NG ?
No
Only AV Terminal Sound NG
Analog TV Sound NG
A Board
AV Terminal Sound OK?
No A Board
Yes DT Board
A HDMI1
Only HDMI Input Sound NG
HDMI I/F
A Board
VCTP
L
L/R Audio AMP
R
MSP SW L/R L/R IC2202
TUNER
Headphone or Audio OUT Sound NG ?
No A Board (Audio AMP) or Speaker
AV1
L/R
AV2
L/R
DVI (Analog)
L/R
Audio In Monitor Out
Yes G
A Board
L/R
AV3
L/R L/R
L/R
Headphone except 23LX60
AUDIO SWITCH
L/R
HP AMP
L/R
6-7. LED 6 times Blink Trouble Mode
Defective Board
SUB 9V down
AP, P Board
1 Power SW ON. SUB 9V output at AP4’s 22 pin OK before Shutdown ?
No
2
Disconnect A4. A4’s 22 pin Short with GND ?
Yes
Note : How to stop power supply completely is disconnecting AC cord, not turning OFF the power SW.
No AP Board
Yes
A Board
A Board
P
MAIN Trans -former
AP
CN3 CN3 AP2 24V 1-3 1-3 IC7209 9V
A
AP4 A4 SUB_9V
1
22
13
1 SUB_9VSENSE
22
CN3 AP2 13
L 2
8
8
101 SUB_ON L
Relay
Relay OFF
STB AC Voltage Trans -former
IC4001 VCTP
6-9. LED 8 times Blink Trouble Mode
Defective Board A Board (*)
FPGA SOS
(*) Cause e.g. IC4004 (FPGA) or MAIN MAIN 3.3V/2.5V/1.5V line abnormal
P
AP Q1801 Q1802 MAIN Trans -former
MAIN3.3V
IC4001 VCTP
STB AC Voltage Trans -former
CN3 AP2 13
13
12
12
A
MAIN 2.5V IC1805 MAIN 1.5V FPGA_OK 97 IC1804
Relay OFF Relay
IC4004 FPGA
AP4 A4
STB 7V
8
8
3
3
L IC1806
STB3.3V
102 MAIN_ON 105 101 SUB_ON
H
1. Typical Trouble Example
1-1. Picture Trouble Example
Model : All Models Symptom : Horizontal Line Result : LCD Panel
Model : All Models Symptom : Vertical Line Result : LCD Panel
Model : All Models Symptom : Wide Vertical Line Result : LCD Panel
Model : All Models Symptom : Vertical Line Result : LCD Panel
Model : All Models Symptom : Irregular Color Result : LCD Panel
Model : All Models Symptom : Irregular Color Result : LCD Panel
Model : All Models Symptom : Abnormal Picture (Lower) Result : LCD Panel
Model : All Models Symptom : Abnormal Picture (Right Half) Result : LCD Panel
1-2. Picture Trouble Example
Model : All Models Symptom : OSD NG Result : DG Board
Model : All Models Symptom : Picture NG (Sub Window) Result : DG Board
Model : All Models Symptom : Vertical Noise (Red) Result : DG Board
Model : All Models Symptom : Abnormal Color Result : DG Board
Model : Japan Models Symptom : Sub Window Picture NG (EPG) Result : DG Board
Model : All Models Symptom : Vertical Line Result : LCD Panel
Model : All Models Symptom : Light Color Result : LCD Panel
2. The Idea of Diagnosis for LCD
2-1. Diagnosis by Jig
Connecting Board No : TZSC07063 Cable No : TZSC09035
( Include Connecting board, Cable) T-con board (on the panel)
LCD panel
DG(A) Board
LVDS cable
(After connecting Jig) LCD panel
T-con board (on the panel)
Red DG(A) Board
Green
Blue
LVDS cable
Jig (Connecting board, Cable)
Black
White
3. Introduction of Jig
3-1-1. Extension Cable (TC-32/26LX600/60) Panel
AP
Panel P
A G
AP5
AP AP3
AP4
DT
P
SP
V
CN2
SP
AP3-A3, AP4-A4 （ TZSA09014 )
G Tcon
G4 To A2
SP
SP V
Inverter Board
V1
Panel unit A5 CN2-AP5,A5 （ TZSC07049)
A6
A3
A4
A12
G4-A6 （ TZSC07051 )
A7
SP(R,L)-A7 （ TZSC09029
A board
A2
DT12
Tcon-A2 （ TZSA09012 )
A1
V1-A1 （ TZSC07048
DT board
DT12-A12 （ TZSC09012 )
3-1-2. Extension Cable (TC-32/26LX60C/L) Panel
AP
Panel P
A
AP5
AP AP3
AP4
G
P
SP
V
CN2
SP
AP3-A3, AP4-A4 （ TZSA09014 )
G Tcon
G4 To A2
SP
SP V
Inverter Board
V1
Panel unit A5 CN2-AP5,A5 （ TZSC07049)
A3
A6
G4-A6 （ TZSC07051 )
A7
SP(R,L)-A7 （ TZSC09029
A board
A4
A2
A1
V1-A1 （ TZSC07048
Tcon-A2 （ TZSA09012 )
3-1-3. Extension Cable (TC-23LX60) Panel
AP
Panel P
A
AP3
AP4
AP P
SP
V
SP K AP3-A3, AP4-A4 （ TZSA09014 )
Tcon
SP
SP V
Inverter Board
V1
K1
K
Panel unit A5 CN2-AP5,A5 （ TZSC07050)
A3
A6
K1-A6 （ TZSC07052 )
A7
SP(R,L)-A7 （ TZSC09029
A board
A4
A2
A1
V1-A1 （ TZSC07048
Tcon-A2 （ TZSA09012 )
3-2-1. Extension Cable Connection (USA)
e.g. TC-32LX60
DT Board A Board
3-2-2. Extension Cable Connection (Canada/ Latin)
e.g. TC-32LX60C
A Board
3-2-3. Extension Cable Connection (Canada)
e.g. TC-23LX60C
A Board
3-3. List of Extension Cable
Please refer to the another sheet
End of Presentation Thank Thank you very much for attending seminar
Appendix
1: Service Mode (LX600/LX60)
How to enter Service Mode (No change from LX50)
While pressing [VOLUME - ] button of the main unit, press [RECALL] button of the remote control three times in a row (within 2 seconds).
Adjustment functions (change from LX50) LX600 (New)
LX50 (Current) Main Item MAIN_ADJ
PCT_ADJ
OPTION RM_SET MTS_ADJ
Sub Item PICTURE1 B-Y R-Y COLOR TINT BRIGHT BACK-L B-Y-G R-Y-A OPT00 EEPROM COPY CODE MTSIN SEPAL
Remarks
Main Item
“MAIN ADJ” Delete
PCT_ADJ
Sub-Color Sub-Tint
WB_ADJ
Sub-BRT Sub-BACKLIGHT B-Y Gain R-Y Angle
“WB ADJ” Add
ALL or ADJ Remote Code
“RM SET” “MTS” Delete
OPTION
SEPAH STB_CAS(*)
“STB_CAS” Add
Sub Item COLOR TINT BACK-L B-Y-G R-Y-A R-GAIN G-GAIN B-GAIN R-CENT G-CENT B-CENT OPT00 BOOT ROM EEPROM COPY CEC_CHK Hard Test SD Download Err log
Remarks Sub-Color Sub-Tint Sub-BACKLIGHT B-Y Gain R-Y Angle WHITE 100%(ADJ) WHITE 100%(ADJ) WHITE 100%(ADJ) WHITE 50%(ADJ) WHITE 50%(ADJ) WHITE 50%(ADJ)
ROM or SD ALL or ADJ or FIX
2: Service Mode (LX60C/L)
How to enter Service Mode (No change from LX50)
While pressing [VOLUME - ] button of the main unit, press [RECALL] button of the remote control three times in a row (within 2 seconds).
Adjustment functions (change from LX50) LX60 (New)
LX50 (Current) Main Item MAIN_ADJ
PCT_ADJ
OPTION RM_SET MTS_ADJ
Sub Item PICTURE1 B-Y R-Y COLOR TINT BRIGHT BACK-L B-Y-G R-Y-A OPT00 EEPROM COPY CODE MTSIN SEPAL SEPAH
Remarks
Main Item
“MAIN ADJ” Delete
PCT_ADJ
Sub-Color Sub-Tint
WB_ADJ
Sub-BRT Sub-BACKLIGHT B-Y Gain R-Y Angle
“WB ADJ” Add
ALL or ADJ Remote Code
“RM SET” Delete
OPTION MTS_ADJ
Sub Item COLOR TINT BACK-L B-Y-G R-Y-A R-GAIN G-GAIN B-GAIN R-CENT G-CENT B-CENT OPT00 EEP COPY MTSIN SEPAL SEPAH
Remarks Sub-Color Sub-Tint Sub-BACKLIGHT B-Y Gain R-Y Angle WHITE 100%(ADJ) WHITE 100%(ADJ) WHITE 100%(ADJ) WHITE 50%(ADJ) WHITE 50%(ADJ) WHITE 50%(ADJ)
ALL or ADJ or FIX
WB-ADJ is necessary when LCD panel is exchanged. MTS-ADJ is necessary when tuner or Multi-sound-IC(IC2202) Multi-sound-IC(IC2202) is exchanged.
3: Self Check
How to enter Self Check (No change from LX50) While pressing [VOLUME - ] button of the main unit, press [SLEEP] button of the remote control simultaneously.
Screen Display example LX600/LX60 only
SELF CHECK 03700-03700 03700-03700 UV OK DT1 OK DT2 OK AVSWA OK FPGA OK HDMI OK MEM OK VCTP OK CEC OK SOS : 2 7
Software Version – EEPROM data Version Basically, “OK” in green or “NG” in red is displayed. But, NG of DT1, DT2, and HDMI are displayed in hexadecimal number and NG of CEC is displayed as ‘---’ . SOS History
Table 1 Meaning of items
except LX60L
Display
Ref. No.
Description
Board
UV
TH8200
TV Tuner
DT Board
DT1
IC8240
PEAKS_Lite(*1)
DT Board
DT2
IC8240
PEAKS_Lite(*2)
DT Board
AVSWA IC2602
Audio SW
A Board
FPGA
IC4004
LCD Driver
A Board
HDMI
IC5004
HDMI Receiver
A Board
MEM
IC1102
EEPROM
A Board
VCTP
IC4001
Digital Processor
A Board
Note: *1 DT1’s NG means the communication error between VCTP and Peaks_Lite. *2 DT2’s NG means the Peaks_Lite can’t communicate with the peripheral devices such as EEPROM, ATSC LSI (FRONT END LSI) and NTSC ENCORDER through IIC bus line.
4: SOS History We can confirm the record of Power SOS by Self-check. This information is useful for service, if TV set sometimes shuts down by power supply trouble.
Screen Display example LX600/LX60 SELF CHECK 03700-03700 03700-03700 UV OK DT1 OK DT2 OK AVSWA OK FPGA OK HDMI OK MEM OK VCTP OK CEC OK SOS : 2 7
In case of LED Blink 2 and 7 times
Note: *This data is only displayed if TV set sometimes shuts down by power supply trouble during the time from the former self check to the next self check. *This data shows all kinds of LED blink that occurred during the time from the former self check to the next self check. *This data is cleared after self check.