- 72 -
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
GD910 service manual
5.5 SIM Detect Trouble
Check soldering of
J301
2V9 VSIM(C236) is 3.0V?
Click TP1
Start
Resolde J301
Check C236 or
Change U202
EN
YE
N
N
N
YE
YE
Change SIM Card.
Work well?
EN
YE
N
Change the main board
Check soldering of
J200
Is 2V9_VSIM(C225) 3.0V?
Check TP1
Do SIM CLK(C248),
SIM_IO(C245)
Work well?
Click TP2
Start
Resolde J200
Check C229 or
Change U200
EN
YE
N
N
N
YE
YE
Change SIM Card.
Work well?
END
N
Change the main board
Checking Flow
Checking
Flow
Содержание GD910
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