Charging Trouble Shooting - LG -E510 Service Manual

4.11 Charging Trouble Shooting

CN400
6
7
8
1
2
3
4
5
9
10
11
MAX_DM
MAX_DP
USB_ID
1. Charging Procedure
- Connect TA or u-USB Cable
- Control the charging current by RT8965 IC
- Charging current flows into the battery
2. Check Point
- Connection of TA or USB Cable
- Charging IC (RT8965)
- Battery
LGE Internal Use Only
TA
(5.1V, 700mA)
VBUS 2mm
D400
C404
FL401
22p
2
P2
1
P1
ZD402 ZD403
VBUS_CHG_IN
E4
VBUS1
E5
VBUS2
E3
D-
E2
D+
E1
ID
D1
R400 2.2K
RES
VCHG_VBUS
TP400 D3
DSS
B5
EXPDET
D2
CAP
C408
1u
GND
VBUS_CHG_JIG
USB_ID
4
R2 0
MAX_DM
P4
3
R1 0
P3 MAX_DP
Main
Battery
VBAT
C5
BATT1
D5
BATT2
A2
DN
A3
DP
A5
U1
U400
A4
U2
B1
AUD1
C1
VREG_MSMP_2.6V
AUD2
A1
MIC
R401 10K
3. Troubleshooting Setup
- Connect TA and battery to the phone
4. Troubleshooting Procedure
- Check the charger (TA or USB Cable)
- Check the OVP Circuit
- Check the Charging IC
- Check the battery
- 106 - Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
VBUS_CHG_IN
FL400
2mm
1
IN OUT
GND1 GND2
USBH_DM
USBH_DP
UART_RX
UART_TX
MINIABB_I2C_SCL
MINIABB_I2C_SDA
MINIABB_INT
Only for training and service purposes