LG 42LG30 - Troubleshooting

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Only for training and service purposes
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TROUBLESHOOTING
Power-Up Boot Fail
Check P700 All
Voltage Level (5V, 12V, 16V)
Check Power connector
OK ?
Replace Power board
Y
N
Check IC704 #2 Pin
Voltage Level 2.6V
Replace IC704 &
Recheck
Y
N
Check X100 Clock
12MHz
Replace X100
Y
N
Replace IC103 Flash Memory
Check Q706 Output
Voltage Level (12V or 5V)
Replace Q706 & Recheck
N
Y
Y