Test Method; Power-On Trouble - LG -600 Service Manual

5.2 Test Method

5.2.1 Power-On Trouble

Power-on button is not working
Check the voltage level of battery
The level is higher than 3.32V
Check the level of TP515
(ON/OFF)
The level is high(3V)
Then the phone is powered-on
properly. Check the LCD module.
YES
YES
END
NO
Charge the battery /
Check the battery
NO
Power-on sequence is not
executed properly. Try again.
If the result is same, change
U501 chipset.
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