LG KC780 Service Manual page 127

10. PCB LAYOUT
ANT501
BT Chip Antenna
No Bluetooth
X101
TCXO 26MHz
No Power on
No Service
Q401-Q403
TR for power-on
No Power on
S401
SIM & MMC Connector
Can't operate SIM and
MMC
U202, U204
PMIC for 8MP Camera
Can't operate camera
LGE Internal Use Only - 128 -
SW501
RF cable connector
No network
U502
Rx FEM
GSM Rx sensitivity
No service
U501
TQM7M5005
Can't make a call
Low TX Power
No service
U104
PMB8888
No power on
X102 Crystal
No booting
CN304
Main-Socket B to B
connector
Can't operate Camera
Flash and vibrator
U401
ISL9221, Charging IC
Can't charge
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