LGE Internal Use Only
Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 22 -
TROUBLESHOOTING
1. Power- Up Boot Fail Trouble Shooting
Check P1101 All
Voltage Level (5V, 15V)
Check Power connctor
OK ?
Replace Power board
Y
Y
Check IC1107 Output
Voltage Level (5V)
Replace IC 1107 &
Recheck
Recheck
Y
N
Check X101 Clock
12MHz
Replace X101
Y
N
Replace IC 105 Flash
Memory
Check IC1104 Output
Voltage Level (1.8V)
Replace IC1104 &
N
Check IC1105 Output
Voltage Level (12V)
Replace IC1105
N
N
N
Y
Check IC1102 Output
Voltage Level (3.3V)
Replace IC1102
N
Y
Wave form of X101
Содержание M227WDP
Страница 47: ...Sep 2009 Printed in Korea P NO MFL49414532 ...