LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 70 -
START
Does the SIM card
support 3V or 1.8V ?
NO
Change the SIM Card.
This phone supports 3V or 1.8V SIM card.
YES
Is Voltage at the pin1, pin6
of J200 2.85V?
NO
Change the U102
NO
YES
Resolder J200
YES
Voltage output
of VSIM LDO
Is 2.85V?
(CHECK C221, R249)
Change the SIM Card
And try again.
Does it work
Properly?
YES
SIM card is properly working
Redownload SW.
Does it work
Properly?
NO
Change the main board
NO
YES
SIM card is properly working.
CHECKING FLOW
Содержание KP210
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Страница 138: ...Note ...
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