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4. TROUBLE SHOOTING
4.8 LCD Trouble
TEST POINT
-LCD assembly status ( FPCB)
-LCD Interface's status
-Connector combination
-Data signal through EMI filter
CIRCUIT
FL301
LCD_D(0:7)
EVRC14S03Q030100R
LCD_D(7)
INOUT_A4
INOUT_B4
LCD_D(6)
4
INOUT_A3
INOUT_B3
3
LCD_D(5)
INOUT_A2
INOUT_B2
2
LCD_D(4)
INOUT_A1
INOUT_B1
1
9
LCD_D(3)
INOUT_B1
INOUT_A1
8
LCD_D(2)
INOUT_B2
INOUT_A2
7
LCD_D(1)
INOUT_B3
INOUT_A3
6
LCD_D(0)
INOUT_B4
INOUT_A4
FL303
EVRC14S03Q030100R
FL305
EVRC14S03Q030100R
9
LCD_ADS
INOUT_B1
INOUT_A1
8
_LCD_WR
INOUT_B2
INOUT_A2
7
_LCD_MAIN_CS
INOUT_B3
INOUT_A3
6
_LCD_SUB_CS
INOUT_B4
INOUT_A4
R308
LCD_ID
47K
R312
100K
SPK_P
SPK_N
EAR_P
EAR_N
MOTOR_P
IND_LED_B
IND_LED_R
VA300
VA302
EVLC14S02050
VA301
LGE Internal Use Only
6
7
8
9
1
2
3
4
1
2
3
4
LCD_RESET
CAM_RESET
VA303
C315
C316
C314
1000p
0.1u
1u
-46-
CN101
FPCB
FL301
CN301
V_EXTH
V_IO
VBAT
CN301
54
1
53
2
52
3
51
4
50
5
49
6
48
7
47
8
46
9
45
10
44
11
43
12
42
13
41
14
40
15
39
16
38
17
37
18
36
19
35
20
34
21
33
22
32
23
31
24
30
25
29
26
28
27
C312
C313
0.1u
0.1u
- 50 -
Copyright © 2009 LG Electronics. Inc. All right reserved.
CN301
MAIN PCB
FL300
EVRC14S03Q030100R
9
1
CAM_D(7)
INOUT_B1
INOUT_A1
8
2
CAM_D(6)
INOUT_B2
INOUT_A2
7
3
CAM_D(5)
INOUT_B3
INOUT_A3
6
4
CAM_D(4)
INOUT_B4
INOUT_A4
FL302
EVRC14S03Q030100R
9
1
CAM_D(3)
INOUT_B1
INOUT_A1
8
2
CAM_D(2)
INOUT_B2
INOUT_A2
7
3
CAM_D(1)
INOUT_B3
INOUT_A3
6
4
CAM_D(0)
INOUT_B4
INOUT_A4
FL304
EVRC14S03Q030100R
9
1
INOUT_B1
INOUT_A1
CAM_MCLK
8
2
CAM_PCLK
INOUT_B2
INOUT_A2
7
3
CAM_HS
INOUT_B3
INOUT_A3
6
4
CAM_VS
INOUT_B4
INOUT_A4
I2C_SDA
I2C_SCL
NA
MLED1
MLED2
VRWLED
1V8_CAM
2V8_CAM
CAM_PWDN
C310
C311
DNI
DNI
Only for training and service purposes
CAM_D(0:7)
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Table of Contents
Troubleshooting
