LG VX8560 - Power on Trouble

LG Electronics Inc.
VX8560
Checking Flow
Checking Flow
START
Check battery voltage ≥3.4V.
Push power-on key and
check the level change of U200
PWR_ON_SW/
Check the voltage of
the following port at U200
+1.3V_MSMC
+1.8V_MSME1
+2.6V_MSMP
+2.1V_MSMA
+2.8V_TCXO
Logic level at PS
_
HOLD(CON200)_
of U200 High ?
Does it work properly ?
Charge of Change Battery and try again
Check the contact of power -key
Replace U200
Re-download software
and try again
The Phone will power on
Does it work properly ?
Re-download software
and try again
Re-download software
and try again
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
1
2
3
4.3 Logic Part Trouble
4.3.1 Power
4.3.1.1 Power-On Trouble
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