LG P705 Service Manual page 135

PCB Revision
ADC
R500
VREG_P3_2.85V
100K
C508
1u
2mm
VBAT
VREG_MSME_1.8V
C521
0.1u
FC-135_32.768KA-AC3
TCXO_PM_19.2MHZ
TCXO_EN
R508 51
R510
51
PS_HOLD
TP507
D502
R514
TP503
51K
TP504
PMIC_SSBI
nPON_RST
TP505
PM_INT_N
R515 1
C529
HSED_BIAS2
C559
1u
LGE Internal Use Only
VBAT VBAT VBAT VREG_MSME_1.8V
C505 4.7u
C503 C504
1u 33p C506 4.7u
C507 10u
C509 4.7u
R504
22K
C513 0.1u
C514
0.1u
C515 0.1u
C516
0.1u
C517
0.1u
C518
0.1u
C520 1u
C519
0.1u
U501
VIB_DRV_N
Seperate from main GND
Mini ABB_NS
uUSB_POWER VBAT
C576 C575 C564
1u
1u 1u
MAX_DM
USBH_DM
MAX_DP USBH_DP
USB_ID UART_RX
U506
UART_TX
VCHG_VBUS
TP400
VREG_MSME_1.8V
VREG_MSME_1.8V
C566
1u
L500
2.2u
L501
2.2u
L502
2.2u
L503
2.2u
C524 C525 C526 C527
22u 22u 22u 22u
C531 C536 C537 C538 C539 C540 C541 C542 C543 C544 C545 C546 C547 C548
C530 C532 C533 C535 C534
1u 1u 2.2u 2.2u 10u 2.2u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u
VREF_THERM
- 135 -
VBAT
U504
1 8
VIN VOUT1
2 7
EN1 VOUT2
3 6
P2 GND
4 5
C562
P1 EN2
1u
VBAT
U508
4 1
VIN VOUT
3 2
STBY GND
C563
1u
VBAT
U509
4 1
VIN VOUT
3 2
STBY GND
C572
1u
OTG Power Option : DNI
VBAT
MINIABB_I2C_SCL
MINIABB_I2C_SDA
U507
MINIABB_INT
B2
VIN1 D505
B3 A2
VIN2 VOUT
C569
A3
C1+ DNI
C570
C568
DNI
DNI
B1 D3
C1- M0
D2
M1
A1
C2+
C1
C571 GND1
C2
DNI GND2
C3 D1
C2- NC
LCD BACKLIGHT LED Boost
VBAT
D503
L504
10u
C549
10u
C3 D2
IN OVP
A2
U502
SCL
A1
SDA
C2
HWEN
B2
N/A_1
B1 D3
PWM ILED
D1 C1
N/A_3 N/A_2
Battery Connector
R503
470K
C573 C574
G2 22p 100p
4
DNI
3
R544
2
1 10K
R532
G1
R525
CN500
30K
VREG_MSME_1.8V
DNI
R524
100
R509
91K
7. CIRCUIT DIAGRAM
C551 C552 C553 C554
1u 1u 1u 1u
uUSB_POWER
C550
1u
C510
33n
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Only for training and service purposes