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Troubleshooting - LG M2794D Service Manual

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Check P700 All
Voltage Level (5V, 15V)
Y
Check Q702 Outp ut
Voltage Level (5V)
Y
Check IC705 #2 Pin
Voltage Level 3.3V
Y
Check X101 Clock
12MHz
Y
Replace IC 106 Flash
Memory
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes

TROUBLESHOOTING

1. Power- Up Boot Fail Trouble Shooting
N
Check Pow er con nector
N
Replace Q702
N
Replace IC 705 &
Recheck
N
Replace X 101
OK ?
- 16 -
N
Replace Po wer board
Wave form of X101
Wave form of X101
LGE Internal Use Only

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