LG LG-P715 - Charger Troubleshooting

4. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
4.11 Charger Troubleshooting
Charging Procedure
- Connect TA or u-USB Cable
- Control the charging current by PM8029 IC
- Charging current ows into the battery
Check Point
- Connection of TA or USB Cable
- Charging current path
- Battery
Troubleshooting Setup
- Connect TA and battery to the phone
Troubleshooting Procedure
- Check the charger (TA or USB Cable) connector(No.1)
- Check the EMI Filter (No 2)
- Check the charging current Path(No.3~4)
- Check the battery Terminal and battery (No.5)
D106
C111
1n
FL101
5
6
31
42
P2 P4
P1 P3
P6
P5
CN102
6
7
8
1
2
3
4
5
9
10
11
D103 D104
D102
FL1
IN
OUT
GND1 GND2
USB_ID
USBH_DP
USBH_DM
5V_VCHG
MICRO USB IO
R4015
100
R4026
80.6K
R4025
750K
0
R4036
D4001
ZD4001
R4016
4.7K
C4049
47u
VREG_MSME_1.8V
C4048
0.1u
CN4001
4
3
2
1
G1
G2
+VPWR
DNI
D4003
C4045
22p
C4046
100p
BATT_ID_PULLUP
VBAT_TEMP
BATT_ID
2mm
Battery Connector
1
4
3
5
2
Charger IC
Main Battery