LG M2794D - Troubleshooting

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Only for training and service purposes
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TROUBLESHOOTING
1. Power- Up Boot Fail Trouble Shooting
Check P700 All
Voltage Level (5V, 15V)
Check Pow er con nector
OK ?
Replace Po wer board
Y
N
Check IC705 #2 Pin
Voltage Level 3.3V
Replace IC 705 &
Recheck
Y
N
Check X101 Clock
12MHz
Replace X 101
Y
N
Replace IC 106 Flash
Memory
Check Q702 Outp ut
Voltage Level (5V)
Replace Q702
N
Y
Wave form of X101
N
Wave form of X101