Only For Training And Service Purposes - LG GB220 Service Manual

4. TROUBLE SHOOTING
CIRCUIT
LCD_DATA00
LCD_DATA01
LCD_DATA02
LCD_DATA03
LCD_DATA04
LCD_DATA05
LCD_DATA06
LCD_DATA07
LCD_VSYNC
nLCD_MAIN_CS
1V81_VDD
nLCD_SUB_CS
nLCD_WR
R316
10K
R317
DNI
LGE Internal Use Only
LGE Internal Use Only
SHARP MAIN 262K TFT(176x220)_SUB TFT(96x64)
LCD_ID
CAM FILTER
4 6
INOUT_A4 INOUT_B4
3 7
INOUT_A3 INOUT_B3
2 8
INOUT_A2 INOUT_B2
1 9
INOUT_A1 INOUT_B1
FL301
ICVE10184E150R101FR
4 6
INOUT_A4 INOUT_B4
3 7
INOUT_A3 INOUT_B3
2 8
INOUT_A2 INOUT_B2
1 9
INOUT_A1 INOUT_B1
FL303
ICVE10184E150R101FR
VBACKUP
4 6
INOUT_A4 INOUT_B4
3 7
INOUT_A3 INOUT_B3
2 8
INOUT_A2 INOUT_B2
1 9
INOUT_A1 INOUT_B1
FL305
ICVE10184E150R101FR
IF_MODE
C331
L304
27p
LSP
22nH
L305
LSN
22nH
LCD CHARGEPUMP & CAM LDO
C324 1u
VBAT
C326
C327
1u
1
C2-
2
U302
PGND
3
SC624ULTRT
NC1
4 EUSY0263105
MLED1 BL1
5
MLED2 BL2
MLED3
1V8_VDD
1V81_VDD
VMMC
R321
CN302
20K 1 50
2 49
IF_MODE
3 48
4 47
5 46
6 45
7 44
8 43
9 42
10 41
11 40
12 39
VBAT
13 38
14 37
15 36
16 35
17 34
18 33
19 32
20 31
21 30
22 29
23 28
24 27
25 26
C325
1u
2.2u
15
LDO1
14
LDO2
13
BYP
12
NC3
11
SWIF
Copyright © 2007 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 82 - Copyright © 2009 LG Electronics. Inc. All right reserved.
1V5_DVDD
MOTOR_N
MOTOR
CAM_PWDN
nCAM_RESET
nLCD_RESET
SWIF
SWIF
Only for training and service purposes