LG -E400f Service Manual page 135

CN400
10 8
1
6 2
3
7 4
5
11 9
C404
22p
VCHG_VBUS
VREG_MSME_1.8V
32.768KHz
FC-135_32.768KA-AC3
C430 DNI
C435 DNI
BT_FM_CLK_REQ_WCN
BT_FM_CLK_WCN
D401
PS_HOLD
Rev.B Change
JTAG_PS_HOLD
R415
51K
TRK_LO_ADJ
PCB Revision
ADC
R421
VREG_P3_2.85V PCB_REVISION
100K
R1 C462
33n
R2
Revision R1 R2 ADC Range(HEX.)
A 100K 5.6K 00.16
B 100K 12K 17.25
C 100K 19.1K 26.34
D 100K 27K 35.42
E 100K 36K 43.51
F 100K 47K 52.5E
1.0 100K 100K 83.95
1.1 100K 130K 96.A9
LGE Internal Use Only
u-USB Connector
VBUS_CHG_IN
VBUS 2mm FL400 2mm
1
IN OUT
GND1 GND2
C465
USB_ID
1u
FL401
VA400
ZD400
2 4
P2 P4
1 3
P1 P3
MINIABB_DM
MINIABB_DP
VBAT VBAT VBAT VREG_MSME_1.8V
C409
33p
C413
R404
22K
0 R405
C422 0.1u
VBAT
0 R406
C427 0.1u C425
0.1u
C428
0.1u
P2
TCXO_PM_19.2MHZ TCXO_IN
F2
XTAL32K_IN
E1
XTAL32K_OUT
N3
TP401
WLAN_CLK_REQ_WCN TCXO_A0_EN VSW_S1_1
M4
WLAN_CLK_WCN TCXO_OUT_A0 VSW_S1_2
K3
TP402
TCXO_EN TCXO_D0_EN VREG_S1
R412 51 N9
PMIC_TCXO TCXO_OUT_D0
N5
TCXO_D1_EN VSW_S2_1
TP403 R413 51 N7
TCXO_OUT_D1 VSW_S2_2
E5
SLEEP_CLK SLEEP_CLK0 VREG_S2
K9
PS_HOLD VSW_S3_1
R414 K13
TP408 CBLPWR_N VSW_S3_2
1K
VREG_S3
K11
KPD_PWR_N
KPD_PWR_N
M10
TP404 RESIN_N
VREG_S4
K15
OPTION1
C11
TP405 SBDT VREG_L1
PMIC_SSBI
VREG_L2
H8
PON_RESET_N VREG_L3
nPON_RST
H10
TP406 PM_INT_N VREG_L4
PM_INT_N
VREG_L5
R416
N17
PA_THERM U402 VREG_L6
VREG_L7
0
M8
C440 PM_TRK_LO VREG_L8
R417
M6
3.3n TRK_LO_ADJ VREG_L9
TRK_LO
VREG_L10
0
M14
HSED_BIAS1 VREG_L11
MIC_BIAS
M16
HSED_BIAS2 VREG_L12
VREG_L13
E19
EXT_IN_LP VREG_L14
E21
EXT_IN_RM VREG_L15
VREG_L16
F14
HPA_IN_LP VREG_L17
H14
HPA_IN_RM VREG_L18
F16
HPA_GNDREF VREG_L19
P18
C441 SPKR_IN_M NCP_CTC1
N19
1u SPKR_IN_P NCP_CTC2
VREG_NCP
H16
HPA_CM_SNS
H18
HPA_OUT_L LED_ATC
F18
HPA_OUT_R
VIB_DRV_N
P20
SPKR_BYP_M GND_DRV
N21
SPKR_BYP_P
R19
SPKR_OUT_M
P22
SPKR_OUT_P
R424
GSM_PA_DAC_REF
0
TP407
Mini ABB_NS
VBUS_CHG_IN
C401
1u E4 C5
VBUS1 BATT1
E5 D5
VBUS2 BATT2
E3 A2
MINIABB_DM
D- DN
E2 A3
MINIABB_DP D+ DP
E1 A5
USB_ID ID U1
U400 A4
U2
D1
VCHG_VBUS
RES
B1
AUD1
D3 C1
TP400 DSS AUD2
B5 A1
EXPDET MIC
D2
CAP
C407
1u
GND
C410 4.7u
C411 4.7u
C412 10u
C414 4.7u
C416 0.1u
C418 0.1u
C420 0.1u
C421 0.1u
C423 0.1u
C424 0.1u
C426 1u
L400
VREG_MSMC1_1.1V
2.2u
VSNS_MSMC1_1.1V
L401
VREG_MSMC2_1.1V
2.2u
VSNS_MSMC2_1.1V
L402
A9
VREG_MSME_1.8V
B8 2.2u
B10
VSNS_MSME_1.8V
A17
B16 L403
B18 VREG_SMPS_2.1V
2.2u
F22 VSNS_RF_SMPS
F20 C436 C437 C438 C439
G21 22u 22u 22u 22u
B22
VSW_S4
B20
C21
VREG_TOUCH_3.0V
D20
VREG_PADAC_2.05V
C1
VREG_MSMA2_1.2V
C3
VREG_PLL_1.1V
E3
+1V3_MSM_A3_WCN
B2
+1V2_WLAN_WCN
K23
VREG_MSMA1_2.6V
R5
VREG_TCXO_2.85V
P6
VREG_USB_1.8V
P10
VREG_LCD_2.8V
R9
+1V8_WLAN_TCXO
N1
VREG_P3_2.85V
K1
VREG_SDCARD_2.85V
G3
VREG_USB_3.3V
M2
VREG_USIM2_2.85V
G1
VREG_USIM1_2.85V
A3
+3V_WLAN_WCN
B4
VREG_RF_2.7V
B6
+1V2_MSM_A2_WCN
K21
H20
G19 1u 1u 2.2u 2.2u 2.2u 2.2u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 2.2u
M18
NCP_FB
R17
B14
VIB_DRV_N
C13
- 135 -
VBAT
BACK-UP BATTERY
USBH_DM
USBH_DP
UART_RX
UART_TX
VCOIN
VREG_MSME_1.8V
VREG_MSME_1.8V
MINIABB_I2C_SCL
MINIABB_I2C_SDA
MINIABB_INT
Battery Conn.
VBAT
2mm
R426 0
VREF_THERM
R425
VREG_MSME_1.8V
DNI
R409
VBAT_SENSE
470K
C429 0 R428 R419
VBAT_TEMP
33n 36K
R427
VBAT_TEMP_MPP
DNI
C431
0.1u
Must Check Battery Conn. Pin Map
Hole
OJ401
OJ400
Copyright © 2012 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
BAT400
R400
1K
C405
1u
2mm
D2
3
2
1
D1
CN401
C434
100u
Only for training and service purposes