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9. PCB LAYOUT
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
J201 Jack Connector Can’t
hear from Headset
U500 SKY77318 Can’t make
a call No Service
U501 AD6548 Can’t make a
call No Service
U103 AD6721 Baseband
Main chipset
U102 Charging IC Can’t
charge Battery
J200 External Memory
Connector Can’t detect Micro
SD Card
U201 Audio AMP Can’t hear
sound from speaker
U100 INTEL Memory Can’t
download SW
J202 SIM Connector Can’t
detect SIM Card
CN301 I/O Connector Can’t
charge Battery Have problem
with USB Data transformation
U400 AIT813G Have
problems with LCD and
Camera
NA point
0 ohm PAD
KG290/KG291
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