LG Flatron W1943SB - Troubleshooting Guide; Troubleshooting - No Power

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TROUBLESHOOTING GUIDE
No Power
(Power Indicator Off)
Please reinsert and
make sure the AC of
100-240v is normal
Measure C707 (+)
=1.8V
U701 PIN2=3.3V
Check the Adapter/Inverter
section
Check CN404 or replace
C707, and U701
NO
NO
YES
YES
1. NO POWER
Check X401 oscillate
waveforms are normal
Replace X401
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Replace U401
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NO
YES
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