Charger Part; Charging Error - Pantech G310 Service Manual

G310 Service Manual

6.4 Charger part

6.4.1 Charging error

Insert adaptor into I/O jack.
1.
Check to see if U103.7 pin is 5.2V : CP143
NO Check to see J101.23, 24 pin and D116.1 cold solder, broken, short to the other PCB
pattern or not : CP144
If you find out any defect, you replace it
2. Check to see U103 No.14 pin is low (0V) : CP145
NO Check to see U103 cold solder, broken, short to the other PCB pattern or not
If you find out any defect, you replace it
3. Check to see Q101 No.4 pin is 4.2V : CP146
NO Check to see Q101, R115, C169 cold solder, broken, short to the other PCB pattern
or not
If you find out any defect, you replace it
CP144
43
PANTECH
CP145
CP143
CP146
R&D CONFIDENTIAL