Sony KDL-46V4800 / KDL-52V4800 Service Manual ▷ View online
KDL-46/52V4800 (CH) 2-5
NO
2 times
YES
See
2-4-2. DC_DET
2-4-2. DC_DET
RED LED Blinks
NO
6 times
YES
See
2-4-3. Backlight Error
2-4-3. Backlight Error
NO
7 times
YES
See
2-4-4. Temp Error
2-4-4. Temp Error
NO
13 times
YES
See
2-4-9. Balancer Error
2-4-9. Balancer Error
14 times
YES
See
2-4-10. HDMI Error
2-4-10. HDMI Error
NO
8 times
YES
See
2-4-5. Audio Error
2-4-5. Audio Error
2-4-1. Self Diagnosis (Flow Chart_C)
NO
15 times
YES
See
2-4-11. Tuner Error
2-4-11. Tuner Error
NO
16 times
YES
See
2-4-12. I2C-CH1 Error
2-4-12. I2C-CH1 Error
NO
10 times
YES
See
2-4-6. DEF Error
2-4-6. DEF Error
NO
11 times
YES
See
2-4-7. NVM Error
2-4-7. NVM Error
NO
12 times
YES
See
2-4-8. I2C Error
2-4-8. I2C Error
NO
17 times
YES
See
2-4-13. I2C-CH0 Error
2-4-13. I2C-CH0 Error
18 times
YES
See
2-4-14. Digital modulator Error
2-4-14. Digital modulator Error
NO
19 times
YES
NO
21 times
YES
See
2-4-16. VCTP Error
2-4-16. VCTP Error
See
2-4-15. USB Error
2-4-15. USB Error
KDL-46/52V4800 (CH) 2-6
2-4-2. POWER_DET (RED 2 times blink)
• This indicates DC_DET of Power Board
1)
.
• 12V line on Power Board
1)
.
• VERD micro (on BGC board) Pin6 detects POWER_DET and shuts down chassis power to standby
status.
VERD micro Pin6 Normal condition: 1.3V - 2.5V
Error case: lower than 1.3V or higher than 2.5V
– Replace Power Board
1)
.
1) 46" : IP5 BOARD
52" : G5 BOARD
2-4-3. Back light Error (RED 6 times blink)
• This indicates panel power circuit error such as inverter.
• VERD micro (on BGC board) Pin40 detects PANEL_DET and shuts down chassis power to
standby status.
VERD micro Pin40 Normal condition: High / Error case: Low (lower than 0.8V)
– Replace Panel or Power
1)
/Inverter Board
.
1) 46" : IP5 BOARD
52" : G5 BOARD
KDL-46/52V4800 (CH) 2-7
2-4-4. Temp Error (RED 7 times blink)
• This indicates high temperature inside chassis.
IC5507 on BGC board is monitoring temperature.
IC5507 is controlled by VERD micro.
• When it happens:
– Check chassis environment.
– Check around IC5507 and replace BGC board if temperature monitoring circuit
has problem.
– Check panel.
2-4-5. Audio Error (RED 8 times blink)
• This indicates Audio Error (Protection).
• It happens:
– IC8200 on BGC board, Audio Amp detects over current, thermal shut down
and/or low voltage of itself.
– DC voltage detected for audio line.
– VERD micro Pin5 Normal condition: High / Error case: Low
• Check UNREG15V at CN6401 Pin4 and Pin5 on BGC board
.
And F3401 on BGC board has 13V or not.
• Check above and replace BGC board.
KDL-46/52V4800 (CH) 2-8
2-4-6. DEF Error (RED 10 times blink)
• This indicates DEF communication error.
• [ communication error ]
– TVM micro (on BGC board) is communicating with EMMA3SL (on BGC board).
• Check above and replace BGC board
.
2-4-7. NVM Error (RED 11 times blink)
• This indicates VERD NVM communication error.
• VERD micro (on BGC board) is communicating with NVM (on BGC board) .
• Check above and replace BGC board.
2-4-8. I2C Error (RED 12 times blink)
• This indicates I2C communication error.
• VCTP micro (on BGC board) is communicating with each devices (on BGC board).
• Check above and replace BGC board
.
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