LG GB108 Service Manual page 66

Mobile phone lg gb108
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Checking Flow
Start
NO
Check Voltage Level of TP1 &
\
Replace R408 or Change PCB
TP2 as 2.8V step waveform ?
YES
NO
Check Voltage Level of
Replace U401
TP3 as 4.9V step
waveform ?
YES
Change PCB
66

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