LG -P350 Service Manual page 115

PMIC
R500
VCHG_VBUS
4.7
VREG_MSMP_2.6V
PCB Revision Check ADC
REV R1 R2 ADC
TEST&E 150K 10K 0.16V
A&F 150K 47K 0.62V
PCB_REVISION
B&G 150K 68K 0.81V
C&H 150K 100K 1.04V
D&I 150K 150K 1.30V
Rev.1.0 150K 300K 1.73V
Rev.1.1 150K 430K 1.93V
Rev.1.2 150K 680K 2.13V
PCB_REVISION
R505
REMOTE_PWR_ON
1K
MSM_USIM_RST
USIM_RST
USB_LDO_EN
GSM_PA_DAC_REF
MSM_USIM_CLK
close to MSM
USIM_CLK
MSM_USIM_DATA
C534
USIM_DATA
0.1u
VBAT_TEMP
VBAT_SENSE
R504
VREG_MSMP_2.6V
47K
TP501
PMIC_SSBI
PM_INT_N
TP502
KEY_LED_DRV_N
SC500
1
CN501
6
7
8
1
2
3
4
5
9
10
11
TP3
LGE Internal Use Only
PM7540
VBATT +VPWR VREG_MSME_1.8V
Route together
C568
33p
C509
2.2u
10K
C516
1u
M7
MPP_1
N5
MPP_2
D8
MPP_3
B12
MPP_4
D4
MPP_5
A1
MPP_6
L12
MPP_7
M11
MPP_8
K8
MPP_9
K9
MPP_10
K5
MPP_11
K6
MPP_12
M3
MPP_13
N1
MPP_14
N3
MPP_15
M5
MPP_16
B3
MPP_17
D5
MPP_18
F4
MPP_19
G4
MPP_20
J2
MPP_21 U501
K2
MPP_22
PM7540
H2
USB_ID
L2
USB_D_P
EUSY0342201
M2
USB_D_M
H4
USB_OE_N
J4 TP1
USB_DAT
K4
USB_SE0
J10
SBST
H10
SBCK
K10
SBDT_SSBI
D10
MSM_INT_N
B6
SPKR_IN_L_M
B7
SPKR_IN_L_P
A6
SPKR_OUT_L_M
A7
SPKR_OUT_L_P
B4
SPKR_IN_R_P
B5
SPKR_IN_R_M
A4
SPKR_OUT_R_P
A5
SPKR_OUT_R_M
B2
VIDEO_IN
B1
VIDEO_OUT
N2
VIB_DRV_N
E1
KPD_DRV_N
F1
LCD_DRV_N
H1
FLSH_DRV_N
ISNS_P
ISNS_M
2mm
+VPWR
VBATT
MicroUSB
USB_DM
USB_DP
USB_ID
ZD502
C564
22p
USB 3.3V LDO
+VPWR
4
Place close to PM7540 pins
3
USB_LDO_EN
C501 0.1u
C503 0.1u
C502
C504 0.1u
1n
C505 0.1u
C506 0.1u
C507 DNI
C508 DNI
C510 0.1u
C511 0.1u
C512 0.1u
C513 0.1u
C514 0.1u
0.3mm
0.3mm
C517 1n
+VPWR +VPWR_AUDIO
C518 1n
10u 1608
C519
Place in PM7540 room at shield edge
close to each other
C520
L500
10u
2.2u
1n
C529
D500
K1 C530 10u
VSW_5V
J1
VREG_5V
4.7u
L501
N8
VSW_MSMC1
M8
VSNS_MSMC1_1.25V
VREG_MSMC1
4.7u
N6 L502
VSW_MSMC2
M6
VSNS_MSMC2_1.25V
VREG_MSMC2
4.7u
L503
N10
VSW_MSME
M9
VSNS_MSME_1.8V
VREG_MSME
4.7u
N4 L504
VSW_PA
M4
VREG_PA
A2
VREG_GP1
J13
VREG_GP2
N12
VREG_GP3
A9
VREG_GP4
B13
VREF_GP5
E13
VREG_GP6
K13
VREG_MMC
A11
VREG_MSMA
G13
VREG_MSME2
2.2u C535
H13
VREG_MSMP
A8
VREG_RFRX1
A10
VREG_RFRX2
A3
VREG_RFTX
N11
VREG_RUIM1
E12
VREG_SYNT
D13
VREG_TCXO
M1 DNI C536
VREG_USB
G1
VREG_WLAN
G12
MIC_BIAS HS_MIC_BIAS
1%
R509 C566
A12 121K
C537 C538
REF_ISET
1u
A13
2.2u 2.2u
REG_GND
C13 C549 0.1u
REF_BYP
H12
TCXO_PM_19.2MHZ
TCXO_IN
D9
TCXO_EN
TCXO_EN
G10
PMIC_TCXO
TCXO_OUT Place crystal and load caps close to PM7540
51
R510
M13
XTAL_IN
N13
XTAL_OUT
K7
SLEEP_CLK Route together
SLEEP_CLK
M12
AMUX_OUT
AMUX_OUT
C12
PM_ON_SW
KPD_PWR_N
F10
nPON_RST D501
PON_RESET_N
E10
PS_HOLD
C570
33p
R515
200K
Charging IC
Q500 NUS5530MN
10
DRAIN_B
1%
1 9
NC1 COLLECTOR_B
2 8
COLLECTOR EMITTER
3 7
SOURCE BASE
4 6
DRAIN NC2
5
GATE
TP2
EQFP0008601
C531
C532
10n
100u
1608
10V
OVP
change circuit at REV B
OVLO IC2
3
IC1
U503
MAX14528
IN2 OUT2
2
IN1 OUT1
EUSY0374601
1
C561 C562
TP4
22p 1u
- 115 - Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
U500
1
USB_3.3V
VIN VOUT
2
STBY GND
EUSY0407201
Local Ground Plan
These CAPs close to inductors
C521 C522 C523 C524
C525 C526 C527 C528
22u 4.7u 4.7u 4.7u
1n 1n 1n 1n
VREG_MSMC1_1.25V
VREG_MSMC2_1.25V
VREG_MSME_1.8V
VREG_SMPS_2.1V
C539 C540 C541 C542 C543 C544 C547
C545 C546 C548 C571
2.2u 2.2u 4.7u 4.7u 2.2u 2.2u 2.2u
1u 1u 1u 1u
C515 22p
X500
32.768KHz
C500 22p
CM315_12_5PF
PS_HOLD
JTAG_PS_HOLD
VCHG_VBUS
2mm
CHG_CTL_N
BATT_FET_N
VCHG_VBUS
5
4
GND1 GND2
8
IN OUT
7
FL500
2mm
Only for training and service purposes
0.6mm
0.6mm
0.6mm
0.5mm
VREG_LCD_1.8V
VREG_LCD_2.8V
VREG_MOTION_3.0V
HS_MIC_BIAS_TEMP
VREG_AUX2_2.9V
VREG_MSMA_2.6V
VREG_MSMP_2.6V
VREG_RF_2.7V
VREG_HPVDD_1.8V
VREG_RUIM_3.0V
VREG_TOUCH_3.0V
VREG_TCXO_2.85V
VREG_MMC_3.0V