LG U310 Service Manual page 146

7. CIRCUIT DIAGRAM
LCD_BACK_LIGHT_CHARGE_PUMP
U501 AAT3154IWP
8 3
+VPWR IN C1+
5 4
WLED_PWR OUTCP C1-
6
C2+
2
LCD_BACK_EN EN_SET
7
C2-
10
D1
11
D2
9 12
GND D3
13 1
PGND NC
T-FLASH SOCKET
VREG_MMC_3.0V
S500
1827034-1
GND
DAT2_RSV
CD_DAT3_CS
CMD_DI
VDD
CLK_SCLK
VSS
DAT0_DO
DAT1_RSV
C524
GND
0.1u
U503
1 6
MMC_CD
2 5
3 4
MMC_DATA
PLR0504F
CN501
MMI_CONNECTOR
21
19
1
2
3
R524
4
R526
5
0
6
7
8
9
10
11
12
13
14
15
16
17
18
20
22
CAM
CONNECTOR
C501 1u 24-5602-024-000-829
13
14
CAM_DATA(7)
15
CAM_DATA(6)
C503 1u
16
CAM_DATA(5)
17
CAM_DATA(4)
18
CAM_DATA(3)
19
CAM_DATA(2)
20
WLED_1 CAM_DATA(1)
21
WLED_2 CAM_DATA(0)
22
WLED_3 CAM_PCLK
23
CAM_RESET_N
24
CAM_P_DOWN
R550 NA
VA504 VA503
VA505
EVLC18S02015 0
EVLC18S02015
MCR01MZSJ000
C516
0.1u
MICBIAS
MMC_CD
MMC_CMD
R511
MMC_CLK
NA
C528
MMC_DATA
0.01u
R516
5
VIN- 4
EAR_MIC2P
VCC 1
10K
HOOK_SENSE_H
VIN+ 3 OUT
GND
2 U506
LMV7291MGX-NOPB
MIC2P
MMC_CMD
MMC_CLK
R521
VREG_MSMP_2.7V
51K
MIC2N
EAR_MIC2P
HPL_L
C537 33u
HPL_R
C538 33u
0 USB_D+
USB_D-
EAR_SENSE_N
VBATT
C542 R529 1K
PM_ON_SW_N
1 2
IN OUT +5V_PWR
3 4
G1 G2
USB_VBUS
NFM21PC105B1A3
UART_TXD
UART_RXD
HB-1M1005-600JT
CAM_MCLK
FB500
VA500
EVLC18S02015
2.2K R500
VREG_DODD_2.7V
I2C_SCL
VA501
R501 2.2K
12 EVLC18S02015
VREG_DODD_2.7V
11
10
I2C_SDA
9
8
VA502
CAM_VSYNC
7 EVLC18S02015
CAM_HSYNC
6
FB501
5
HH-1M1005-601JT
4
VREG_CAM_2.7V
3
C508 C509 C505
2
1u 0.1uF 10u
1
C580
1u
CN500
VREG_DODD_2.7V
FB502
C510
0.1uF HH-1M1005-601JT
CAM_LDO
U502 R1114D281D-TR-F
1 3
+VPWR VDD VOUT
4 2
NC GND1
6 5
CAM_PWR_EN CE GND2
C517
C518 C519 1u
VREG_MSMP_2.7V 1u 0.01u
Audio AMP
C527
100p
C530
R515
R518 68K
MID_SPK+
0.068u
10K
U508 MAX9716ETA
1
_SHDN SPK_AMP_EN
6
VREG_5V VCC
8
C535 OUT- AMP_SPK-
2
1u BIAS
5
OUT+ AMP_SPK+
3
IN+
7
C539 GND
4
0.1u IN-
9
PGND
R527 68K
C540
R528
MID_SPK-
0.068u C541 100p
10K
R530 470K
VBAT_SENSE
C543
47n
VBATT
INSTPAR
PSD05-LF
D500
CN502
1
5
2
VBAT_TEMP
4
3
R532
VREG_MSMP_2.7V
80.6K
- 147 -
MIC C500 C502
10u
47p
SP0102BE3
5
G3
C504 22n
U500 4
PWR
3
G2
2
G1
C506 22n
1
OUT
U504 R1114D281D-TR-F
1 3
+VPWR VDD VOUT VREG_CAM_2.7V
4 2
NC GND1
6 5
CAM_PWR_EN
CE GND2
VREG_DODD_2.7V C523
C521 C522 1u
1u 0.01u
U505 BH28FB1WHFV
1 5
LCD_LDO_EN STBY NC
2 6
GND BGND
3 4
+VPWR VIN VOUT VREG_LCD_2.8V
R509
C525
1u 470K
C526
1u
Select RCV / SPK
SPK_SW_ON
R525
100K
U507 MAX4764ETB
R517 0
2 5
AMP_SPK+ NO1 IN1
10 7
AMP_SPK- NO2 IN2
R520 0
R514 0
1 3
VREG_5V VCC COM1
9
COM2
11 4
R522 0
C534
PGND NC1
6 8
GND NC2
0.1u C536 C533
NA
NA
R512 10
RCV-
RCV+
R510 10
U310
CAM & AUDIO & I/O
BLUETOOTH
U310_REV_1.1
MICBIAS
MIC1N
C507
NA
MIC1P
SPK+
SPK-
5/6