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4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
START
Check Battery Voltage
> 3.35V
Push power-on key
And check the level change
of PWON
Check t he volt age of
The LDO outputs at U101
Charge or Change Battery
Check the co ntact of power key
Or d ome-sw itch
Replace U101
V_EXTL=1.8V, V_EXTH=2.8V, V_MMC=2.8V
V_SIM= 1.8 or 3V, V_USB=3.3V, V_RTC=1.8V
V_IO=1.8V, V_ABB =2.8V, V_MEM=1.8V ,
V_PLL= 1. 3V
Replace the main board
YES
YES
YES
NO
NO
NO
CHECKING FLOW
Содержание KP151Q
Страница 1: ...Service Manual Model KP151Q Service Manual KP151Q Date September 2008 Issue 1 0 Internal Use Only ...
Страница 107: ... 108 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 127: ...Note ...
Страница 128: ...Note ...