4. TROUBLE SHOOTING
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2.2u
C431
2.2u
C432
C473
39p
C474
39p
VA406
VA405
FL403
10
9
5
4
6
3
7
2
8
1
P1
P8
P2
P7
P3
P6
P4
P5
G1
G2
FL404
5
6
1
4
2
3
P3
P2
P4
P1
P6
P5
R474
100K
DNI_VARISTER_1005
VA408
CN403
13
12
14
11
15
10
16
9
17
8
18
7
19
6
20
5
21
4
22
3
23
2
24
1
LCD_MIPI_CLK_N
LCD_MIPI_DATA0_N
LCD_MIPI_DATA1_N
LCD_MAKER_ID
LCD_MIPI_DATA0_P
LCD_MIPI_DATA1_P
LCD_MIPI_CLK_P
LCD_RESET_N
LCD_PWM
LED_C2
LEDA
+1V8_LCD_VIO_MTK
LCD_VSYNC
+2V8_LCD_VCI_MTK
LED_C1
4.0" MIPI LCD
width>0.35m
LGD : LOW
VCI: TP1 (C474)
VIO: TP2 (C473)
MIPI_CLK: TP3 (FL404)
MIPI_DATA: TP4 (FL403)
U404
B4
C1
A3
A4
E3
D3
E2
E1
B3
B2
A1
D2
A2
E4
B1
D4
D1
C4
C3
C2
TX
STROBE
VIN
BLED1
PWM
FLED2
SW
B
OUTF1
SCL
FLED1
OUTF2
SWF2
BLED2
OVP
SDA
GND3
GND1
SWF1
EN
GND2
1u
L403
10u
C468
1u
C429
D400
HJ-BCT-02Y
CN404
1
CN405
HJ-BCT-02Y
1
C428
10u
10u
L402
VA407
100K
R475
R476
100K
VBATT
I2C_COMMON_SCL
I2C_COMMON_SDA
LCD_BL_EN
FLASH_LTD
FLASH_EN
LCD_PWM
LED_C2
LEDA
LED_C1
LCD B/L B Camera Flash
Width : 0.3mm
Width : 0.3mm
Width : 0.3mm
LED_OUT: TP5 (C429)