LG GB220 - Page 81

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
CIRCUIT
CAM FILTER
SHARP MAIN 262K TFT(176x220)_SUB TFT(96x64)
1V81_VDD
27p
C331
10K
R322
DNIR318
VMMC
DNI
R317
1V8_VDD
R315 100K
1V81_VDD
1uC336
1V5_DVDD
47p C334
R316
10K
C333
32
33
34
1u
40
41
42
43
44
27
45
46
47
48
49
50
28
29
30
31
23
24
25
3
4
5
6
7
8
9
26
35
36
37
38
39
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
CN302
INOUT_B1
INOUT_B2
8
INOUT_B3
7
INOUT_B4
6
ICVE10184E150R101FR
G1
5
G2
10
INOUT_A1
1
2
INOUT_A2
3
INOUT_A3
4
INOUT_A4
9
FL303
20K
R321
5
G1
10
G2
1
INOUT_A1
INOUT_A2
2
3
INOUT_A3
INOUT_A4
4
INOUT_B1
9
8
INOUT_B2
INOUT_B3
7
6
INOUT_B4
INOUT_A4
4
INOUT_B1
9
8
INOUT_B2
INOUT_B3
7
6
INOUT_B4
ICVE10184E150R101FR
FL305
ICVE10184E150R101FR
5
G1
10
G2
1
INOUT_A1
INOUT_A2
2
3
INOUT_A3
FL301
22nH
L304
C337 1u
C33547p
L305
22nH
VBACKUP
VBAT
SWIF
CAM_PWDN
nCAM_RESE
T
nLCD_RESET
LSN
LSP
IF_MODE
LCD_ID
nLCD_SUB_CS
nLCD_WR
IF_MODE
MOTOR_N
MOTOR
LCD_DATA00
LCD_DATA01
LCD_DATA02
LCD_DATA03
LCD_DATA07
LCD_DATA06
LCD_DATA05
LCD_DATA04
LCD_VSYNC
nLCD_MAIN_CS
LCD CHARGEPUMP & CAM LDO
1uC324
VBAT
C330
2V8_AVDD
1V5_DVDD
1u
1u
C327
11
THER_GND
21
VIN
19 16
VOUT
BL1
BL2
5
6
BL3 BL4
7
13
BYP
C1+
18
C1-
20
C2+
17
1
C2-
GREF
9
LDO1
15
LDO2
14
NC1
3
10
NC2
12
NC3
PGND
2
SWIF
EUSY0263105
SC624ULTRT
U302
8
AGND
4
1uC326
C329 1u
22nC328
C325
2.2u
MLED
MLED1
MLED2
MLED3
SWIF