LG -MC2670 Service Manual page 63

CON400
Vibrator Connector
Vibrator doesn't work
CON401
Earphone Jack
Earphone doesn't work
X100
VCTCXO
Can't power on
No service
U100
RF Mobile Switch
No service
Can't make a call
Bad sensitivity
Low TX power
ANT100 U102
ANT Connector DCN PAM
Can't make a call
No service
Can't make a call
Low TX power
The Bottom of Main PCB (MC26 0)
DP101 F103
Duplexer DCN RX SAW Filter
Can't make a call
No service
Bad sensitivity Bad sensitivity
Low TX Power
U106
RFR6122
No service
Bad sensitivity
F102
DCN TX SAW Filter
Can't make a call
Low TX power
U400
Power Management IC
Can't power on
Power isn't supplied
to each block
Unable to charge
U105 U201
RFT6122 MSM6000
Can't make a call Can't power on
Low TX power Abnormal operation
No service No service
Can't make a call
U401
Audio Amplifier
No ringtion
Small ringtone volume
U203
SRAM
Can't power on
Abnormal operation
CON301
Receptacle
with DC Jack
No DM
U202
connection
Flash Memory
Hands-Free
Can't power on
kit doesn't
Abnormal operation
work
Unable to
charge