LG -P970 Service Manual page 210

BATTERY CONNECTOR
C507
C508 C509 C510
100u
100n 3.3p ZD501
10p
Change to 4 Pin type if neccessory
MUIC
VCHG
C502 1u D5
VB
C5
COMN1
90ohm matching !! USB_DM
B5
USB_DP COMP2
B4
USB_ID UID
R502
B1
RES
2.2K
D1
CAP
C4
GND
C513
C3
IC
1u
1.8V_VIO
100K
R503
LGE Internal Use Only
VBAT 1.8V_VIO
CN502
G2
4
BATT_THM_ADC
3
2
1
G1 VA501 C520
470n
VBAT
C501
0.1u
D2
BAT
A4 USB_DM_TWL
DN1
90ohm matching !!
A5 USB_DP_TWL
DP2
B3
U501 UART_RX
U1
A3
MAX14526DEEWP U2 UART_TX
A1
MIC
D4
AUD1
D3
AUD2
A2
ISET
FUEL GAUGE IC
MAX17043(TEST)
VBAT 1.8V_VIO
U506
2 3
CELL VDD
5
ALRT GAUGE_INT
C526
10n
6
QSTRT
1 8 I2C2_SDA
CTG SDA
4 7
I2C2_SCL
GND SCL
C524 C528
1u 1u
Hall IC
1.8V_VIO
U505
4 5
CRADLE_DETECT_N
VDD OUT1
3 1
CARKIT_DETECT_S
NC OUT2
C521 2
GND
0.1u
- 210 -
CHARGER IC
Close to batt. connector
VCHG 1.8V_VIO
VBAT
USB_VBUS
C506
1u
11
PGND
1 10
VIN BATT
2 9
U502
ISET PGB
3 8
GND1 CHGSB
4 7
LDO GND2
5 6
IEOC EN_SET
C512 C511
1u 2.2u
GND pad on the bottom of chip has to be connected to main GND trace through many vias for heat emission.
MOTOR DRIVER
3.0V_MOTOR
U504
1 8
VIBE_EN VIB_P
EN VDP
2 7
VIBE_PWM PWM GND
3 6
MODE VDD
4 5 VIB_N
GAIN VDN
C517
2.2u
C519 10n
1% DNI
R517
Copyright © 2011 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
CHG_STATUS_N_OMAP
CHG_EN_SET_N_OMAP
SCREW HOLE
OJ501
Only for training and service purposes