Sony KDL-32W700C / KDL-32W705C / KDL-40W700C / KDL-40W705C / KDL-48W700C / KDL-48W705C / KJ-32W700C / KJ-40W700C / KJ-48W700C Service Manual ▷ View online
41
Troubleshooting
3-2-4. LED BLINKING 5x (Panel Communication Error) – a) 12.5V NG
Note: Board Details refer Section 3
main page.
main page.
5-times blinking
Check
PANEL_VCC 12.5V at
CN8001
on the B* Board
Replace the Harness
Between LD board
and B board
Replace
the LVDS Harness
Change
B* Board
Change
Panel (T-con)
Harness
LVDS Harness
B*Board
NG
OK
NG
Symptom
improvement
improvement
Symptom
improve
improve
Symptom
improve
improve
NG
NG
LD Board
Check 12.5V
LD Board
XM-L : LD Board
*3-1-2. NO POWER – LD
Board
*3-1-2. NO POWER – LD
Board
NG
OK
Refer I2C Error
Checking in next slide
42
Troubleshooting
3-2-4. LED BLINKING 5x (Panel Communication Error) – b) 12C Error
5-times blinking
PANEL ID Check
Check I2C (Data & CLK)
At CL
XM-L (BAX-L): CL8027 & CL8028
I2C Error
Change B-Board
B-Board NG
Change FFC
FFC NG
Change FRC
FRC NG
OK
OK
OK
NG
NG
NG
43
Troubleshooting
BAXL (B-Side)
BAXL Probing Points – 12.5 V Check
JL9132
(PANEL_VCC)
44
Troubleshooting
BAXL (B-Side)
BAXL Probing Points – I2C Line Check
CL8027
(I2C_S_DATA)
CL8028
(I2C_S_CLOCK)
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