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NO POWER
(POWER INDICATOR OFF)
IS ADAPTER
1
VOLTAGE 19V?
2
IS IC102 PIN 3(5V)?
1 3
"IS IC 100 PIN1 (3.3V),
PIN3 (1.2V)?"
Check IC101 PIN 42,43
1 4
PULSE
CHECK IC101
Waveforms
1
JK100#1
Copyright
2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TROUBLESHOOTING GUIDE
1. NO POWER
YES
YES
YES
YES
2
IC102#3
1.2V
NO
NO
NO
NO
3
IC102#1
- 14 -
CHECK Adapter
CHECK IC102(5V)
CHECK IC 100 PIN1(3.3),PIN
PIN3(1.2V)
CHECK CRYSTAL(X100)
4
IC104#42,43
LGE Internal Use Only
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