Sony ELF Series Service Manual page 12

2021/07/13 22:44:19 (GMT+09:00)
Error patterns
The self diagnosis function displays only one error.
Priority
1
2 Backlight Power Abnormal 12V(only 12V detection）
3
4
Details of Errors
1. If power key is not pressed, the error state is not updated.
2. If multiple errors occur, the higher priority error is notified.
Ex) When T-con Power Supply Abnormal occurs during Temperature Error
Power LED :
Temperature Error
Even if the lower priority error occurs
compared to the current error, the blinking
pattern does not change.
ELF-SR1
Status
T-con Power Supply Abnormal
Temperature Error
Audio Error
...
Five times blinking
Power LED :
Five times blinking
T-con Power Supply
Abnormal occurs
Temperature Error and T-con Power Supply Abnormal
LED blinking
OVP or OCP protection of 3.3vDC Power supply line, from Main board
3
to T-Con circuit in Panel Assy.
4 Failure of the backlight power 12V peripheral circuit
5 Internal temperature is too high
2 Failure of the audio device circuit such as short circuit of the speaker
Power LED :
< >
Power LED :
Power LED :
Three times
blinking
Temperature
Error occurs
T-con Power Supply Abnormal
SELF DIAGNOSIS FUNCTION
Description
Priority Status
T-con Power Supply
1
Abnormal
2
Temperature Error
Power LED :
...
Power LED :
Power LED :
< >
Temperature Error and T-con Power Supply Abnormal
LED blinking
3
5
...
Three times
blinking
...
Three times blinking
12
SYS SET