THOMSON 32LM051B6 - 8.2 Start-up Issues (Yellow LED)

32’’ LCD TV Color Monitor Thomson 32LM051B6
27
5.2 Can not start (LED indicator yellow)
NG
Repair the key board
OK
Check 5V_SB
NG
Return to “5.1”
Check 3.3V_SB
Replace U701
OK
NG
Check PWR_ON signal
OK
NG
Check Q704, Q705, Q706, Q709
NG
Replace Q704 or Q705 or Q706 or Q709
Check U32, U21
NG
Replace U32 or U21
Check I
2
C communication
OK
Check PFC circuit
NG
Replace IC901 or Q901
OK
Check main board power supply
Check key board
Check Panel inverter board
NG
Replace panel