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27" LCD TV
2. Can not start (LED indicator yellow)
Check keyboard
OK
Check 5V_SB
OK
Check 3.3V_SB
OK
Check PWR_ON signal
OK
Check PFC circuit
OK
Check main board
power supply
NG
Repair the keyboard
NG
Return to "5.1"
NG
Replace U700
Check Q700, Q701, Q702, Q703
NG
Check U300,U501
Check I
Check Panel inverter board
NG
Replace IC901 or Q901
NG
2
C communication
19
Hyundai HLCD-A27W4
Replace Q700 or Q701 or
NG
Q702 or Q703
Replace U300,U501
NG
Replace panel
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