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u-USB Connector
VBUS
TA OVP Circuit
VBUS 2mm
FL400
2mm
1
IN
OUT
GND1 GND2
C403
C404
ZD400
1u
22p
Change value and size1608
Change value
PM8058
Use W2100 - R** disconnect / R** connect
Use W1900 - R** connect / R** disconnect
R421
TP401
0
X400 1ZCB19200AB0D
4
3
1
2
19.2MHZ
GND for XO_ADC
A2
XTAL_19M_IN
A3
XTAL_19M_OUT
B7
XO_OUT_A0_EN
D8
QTR_TCXO
TP402
XO_OUT_A0
D6
XO_OUT_A1_EN
D7
XO_OUT_A1
B3
XO_OUT_D0_EN
Insert value for tune_Rev.B
D5
XO_OUT_D0
B2
TCXO_EN
TP403
XO_OUT_D1_EN
E4
MSM_TCXO
XO_OUT_D1
FC-135_32.768KA-AC3
A7
XTAL_32K_OUT
A8
XTAL_32K_IN
C15
SLEEP_CLK0
SLEEP_CLK0
J5
GPIO38_SLEEP_CLK1
J4
GPIO39_MP3_CLK
add to 1k ohm
32.768KHz
B14
RESIN_N
R490
D10
KYPD_PWR_N
KPD_PWR_N
R14
1K
OPT_1
+VPWR
J15
OPT_2
REMOTE_PWR_ON
H15
OPT_3
R491
R15
MPP11_CBLPWR0_N
R426
P15
PS_HOLD
1K
MPP12_CBLPWR1_N
Connect line_RevB
D12
JTAG_PS_HOLD
10K
PS_HOLD
E15
PON_RESET_N
PON_RESET_N
M8
GPIO40_EXT_SMPS_EN
D11
SSBI
PMIC_SSBI
E11
PM_INT_SEC_N
PMIC_SECURE_IRQ_N
E12
PM_INT_USR_N
PMIC_USER_IRQ_N
E13
PM_INT_MDM_N
PMIC_MDM_IRQ_N
E10
GPIO33_UART_RX1
H4
GPIO34_UART_RX2
H5
GPIO35_UART_RX3
L12
GPIO37_UART_M_RX
K12
GPIO36_UART_M_TX
F12
USIM_M_DATA
MPP01_EBOOT_M_RX
G5
GPIO32_EBOOT_RX
F5
USIM_M_CLK
GPIO29_EBOOT_M_TX
G4
GPIO31_EBOOT_TX
B15
NFC_EXT_EN
G2
VREG_XOADC_REF_2.2V
XOADC_REF
G12
PCB_REV_ADC
MPP03_CDMA_HDET
G13
BAND_CHECK_ADC
MPP04_IR_PROX_RX
H13
PCB_THM_ADC
MPP06_CHG2_DET
J12
BATT_THM_ADC
MPP07_BATT_THERM
J13
BATT_SENSE
MPP08_BATT_ID
K13
R428
100K
MPP09_XO_THERM
L13
MPP10_PA_THERM
C471
C472
0.1u
XO_Thermister
1n
C475
1u
C476
1u
XO_ADC_GND
C477
1u
GND for XO_ADC
Connect to H7 Pin
Change 1005
ERASE KEY_SENSE,KEY_DRV
LGE Internal Use Only
MUIC
VCHG_VBUS
VCHG_VBUS
2mm
U400
1
8
C400
VIN1
VOUT2
2
7
1u
VIN2
VOUT1
3
6
OVPFB
GND
4
5
WRN
EN
C402
E1
VBUS
1u
E2
MUIC_DM
DM
E3
MUIC_DP
DP
D3
USB_ID
ID
R411
A3
R2_2K
2.2K
A1
CLDO
C410
10n
C411
10u
C412
10u
C413
10u
C414
10u
C415
10u
VBAT
C416
2.2u
C417
1u
39p
C418
C419
0.1u
C420
0.1u
VCHG_VBUS
C421
1u
+VPWR
C422
0.1u
Insert line_RevC
R422
C434
DNI
1u
L16
VSW_S0
N15
VREG_S0
T14
VSW_S1
R13
VREG_S1
A14
VSW_S2
B13
VREG_S2
H16
VSW_S3
G15
VREG_S3
E16
VSW_S4
D15
VREG_S4
A10
VREG_L0
A11
VREG_L1
E1
VREG_L2
C1
VREG_L3
C2
VREG_L4
B1
VREG_L5
R3
VREG_L6
P2
VREG_L7
L1
VREG_L8
N1
VREG_L9
T2
VREG_L10
D1
U403
VREG_L11
G1
VREG_L12
C16
VREG_L13
H1
VREG_L14
K1
VREG_L15
A16
VREG_L16
A6
VREG_L17
A4
VREG_L18
L15
VREG_L19
M15
VREG_L20
A12
VREG_L21
A9
VREG_L22
T16
VREG_L23
N16
VREG_L24
R16
VREG_L25
T7
NCP_CTC1
T5
NCP_CTC2
R6
NCP_FB
T8
VREG_NCP
B9
VOUT_LVS0
B10
VOUT_LVS1
D13
REF_BYP
R1
KYPD_DRV_N
T11
LED_DRV0_N
T9
LED_DRV1_N
R9
LED_DRV2_N
Add and check
R11
LED_ATC
T1
VIB_DRV_N
C473
0.1u
GND for REF
GND
XO_ADC_GND
GND for XO_ADC
+VPWR
C401
0.1u
C4
UART_TX
UART3_TX
C3
UART_RX
UART3_RX
D4
USB_DM
USBH_DM
E4
USB_DP
USBH_DP
U401
D1
For eye diagram tuning
AUDIO_L
C1
AUDIO_R
A4
VREG_MSME_1.8V
MIC
C2
FUEL_I2C_SDA
DSS
B3
FUEL_I2C_SCL
_INT
A2
SDA
B2
SCL
D2
GND
MUIC_INT
MUIC_I2C_SDA
MUIC_I2C_SCL
To be obsolete
L400
2.2u
VREG_MSMC1_1.1V
Place this point near MSM
L401
2.2u
VREG_MSMC2_1.1V
Place this point near MSM
L402
2.2u
Place this point near QTR IC
VREG_MSMA1_1.3V
R424
VREG_RF_1.3V
L403
2.2u
0
VREG_MSME_1.8V
L404
2.2u
VREG_RF_2.2V
Place this point near QTR IC
C435C436
C437
C438
C478
C439
C440
C441
C442
C443
22u
22u
22u
22u
22u
22u
10u
22u
DNI
DNI
Because of height
VREG_SENSOR_2.6V
VREG_RUIM_2.85V
VREG_EMMC_2.85V
VREG_USB_3.3V
VREG_USB_1.8V
VREG_SENSOR_IO_1.8V
VREG_MSMA2_2.05V
VREG_MICRO_SD_2.85V
VREG_CAM_AF_2.8V
VREG_CAM_AVDD_2.8V
VREG_TOUCH_2.7V
VREG_RF_SW_2.7V
change net_name
VREG_LCD_3.0V
VREG_LCD_1.8V
VREG_QFUSE_1.8V
VREG_XOADC_REF_2.2V
VREG_TOUCH_1.8V
VREG_CAM_DVDD_1.8V
VREG_MPLL_1.1V
QTR_WCA_DIG_1.2V
C446
C447
C448
C449
C450
C451
C452
C453
C454
C455
C456
C457
C458
C459
C460
C461
C462
C463
C464
C465
C466
C467
C468
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
4.7u
VREG_CAM_IOVDD_1.8V
VREG_KEY_TOUCH_1.8V
add key touch 1.8V
C469
C470
KEY_TOUCH_LED_N
1u
1u
VIB_N
Changed at REVC
- 183 -
Fuel Gauge IC
VBAT
VBAT
VREG_MSME_1.8V
add to 1u,470k
Change part _ be obsolete
U402
Line width 0.15mm
BATT_SENSE
R409
3
2
BATT_THM_ADC
VDD
CELL
10K
5
SEO
6
EO
8
1
SDA
CTG
7
4
SCL
GND
C491
C490
C488
DNI
MAX17040G
DNI
DNI
Insert value _ RevB
Backup Battery
Battery Charging Circuit
PANASONIC TO TAIYO_YUDEN at REVC
BAT400
R415
VCOIN
1K
Change value_ REVC
BATT_FET_N
Changed at REVC
FL401
6
1
V+
OUT
5
2
REF
V-
4
3
IN-
IN+
BUFFER FOR CLK
VREG_MSME_1.8V
VREG_XOADC_REF_2.2V
U404
VCC
5
2
4
SLEEP_CLK0
SLEEP_CLK
3
GND
C479
R427
DNI
DNI
For debugging
Revision
PCB Revision / Band Check
A
B
ADC
C
D
CHANGE VALUE _ Rev 1.1
R429
VREG_EMMC_2.85V
PCB_REV_ADC
E
100K
R1
C474
33n
F
R2
1.0
C495
1.1
33n
R495
BAND_CHECK_ADC
100K
Band
BAND18_RevC
1/5
1/8
Copyright © 2011 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
Battery Conn.
Insert VREF_THERM_ ADC_RevB
VREG_THERM_ADC
VREG_XOADC_REF_2.2V
VBAT
2mm
2mm
D2
R408
3
470K
2
1
D1
C492
C406
C407
ZD402
ZD401
CN400
33n
33p
0.1u
another battery connetor
VBAT
QCT FFA : SI2333DS-T1-E3
Q401
1
D1
D6
8
2
D2
D5
7
3
D3
D4
6
4
G
S
5
+VPWR
C426
C427
100u
10n
Temp Check
R432
PCB_THM_ADC
51K
C480
33n
R1
R2
ADC Range(HEX.)
100K
5.6K
00.16
100K
12K
17.25
100K
19.1K
26.34
100K
27K
35.42
100K
36K
43.51
100K
47K
52.5E
100K
100K
83.95
100K
130K
96.A9
R1
R2
ADC Range(HEX.)
100K
300K
2.14
100K
10K
17.25
Only for training and service purposes
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Troubleshooting
