LG CU920 - Page 184

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9. PCB LAYOUT
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CN102
Touch panel connector
No touch sensing
J100
USIM connector
No use phone set
Display “Inset SmartChip”
U103
LCD backlight charge pump
Can’t see LCD display
LCD backlight off
U104
Touch driver IC
Abnormal touch sensing
ANT100
No use BT service
Abnormal Tx,& RX power
U101
RB04(Bluetooth IC)
No use BT service
Abnormal Tx,& RX power