LG VX9100 Service Manual page 92

VX9100
Charging Connector CON603
If connect USB Cable, 2.6V
Check VBATT Voltage >3.4V
Charging will operate properly
Copyright © 2007 LG Electronics. Inc. All right reserved
Only for training and service purposes
START
Battery Change
Does it work properly
NO
Well-soldered?
YES
VCHAR (D602) =5V?
YES
USB_DECT(C646)
If connect TA, 0V ?
YES
YES
download software
try again
Does it work properly
YES
Checking Flow
Checking Flow
The battery may have the problem
YES
NO
The charging adaptor (TA) or USB cable(USB port
NO
NO
NO
The battery may have the problem
NO
- 91 -
Re-soldering CON603
of computer) is out of order.
Replace Q602
Replace PMIC (U401)
LGE Internal Use Only