LG LG-P350 - Power on Troubleshooting

4. TROUBLE SHOOTING
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4.10 Power ON Troubleshooting
Power On sequence of P350 is :
Power key press Æ TP1 go to low Æ PM7540 Power Up Æ TP3(C525), TP7(C526), TP2(C527), TP4(C542),
TP5(C541), TP6(C546) power ON Æ Phone booting and TP9(D501) go to High
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START
Battery voltage higher than
3.70V(OCV)?
Change or charging the Battery
No
Yes
Redownload SW image
TP1 or TP9 hight to
low when key pness?
Check correctly working powerkey
No
Yes
TP2, TP3, TP4, TP5
TP6, TP7 power up?
Change the Main board
No
Yes
is clock OK?
TP8: 19.2M/TP10:32.768kHz
Change the Main board
No
Yes