LG KG280 Service Manual page 92

Service manual
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7. CIRCUIT DIAGRAM
1
2
A
2V8_VEXT
R503
15pF 100ohm 15pF
NA
1
TOUCH_INT
2
TOUCH_CLK
3
TOUCH_EN
4
TOUCH_DAT
B
R504
EVRC14S03Q030100R
NA
FL502
1
L_DATA14
2
L_DATA12
3
L_DATA10
4
L_DATA08
EVRC5S03Q050200R
C
1
L_DATA06
2
L_DATA04
3
L_DATA02
4
L_DATA00
EVRC5S03Q050200R
15pF 100ohm 15pF
1
L_MAIN_LCD_CS
R502
10
2
LCD_RESET
3
LCD_WR
4
LCD_RS
C508
C509
C510
27p
27p
27p
D
E
1
2
3
LGIC(42)-A-5505-10:01
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3
4
5
B-To-B CON.
AXK8L70125BG
2V8_VCAM
ENBY0022901
9
INOUT_A1
INOUT_B1
8
2V8_VEXT
INOUT_A2
INOUT_B2
7
70
INOUT_A3
INOUT_B3
6
69
INOUT_A4
INOUT_B4
68
SPK_RCV_N
67
SPK_RCV_P
66
SFEY0013201
65
64
63
62
61
TOUCH_LED
60
25pF 200ohm 25pF
59
9
58
INOUT_A1
INOUT_B1
8
57
INOUT_A2
INOUT_B2
7
56
INOUT_A3
INOUT_B3
6
55
INOUT_A4
INOUT_B4
54
53
52
SFEY0014801
FL504
51
50
49
LCD_ID
48
47
46
25pF 200ohm 25pF
45
9
44
INOUT_A1
INOUT_B1
8
43
INOUT_A2
INOUT_B2
42
7
INOUT_A3
INOUT_B3
41
6
INOUT_A4
INOUT_B4
40
39
IF_MODE
38
SFEY0014801
FL506
37
36
FL507
C506
EVRC14S03Q030100R
9
1u
INOUT_A1
INOUT_B1
8
INOUT_A2
INOUT_B2
7
INOUT_A3
INOUT_B3
6
INOUT_A4
INOUT_B4
SFEY0013201
GND500
4
5
6
7
8
7.5pF 10ohm 7.5pF
1
INOUT_A1
2
INOUT_A2
3
INOUT_A3
4
INOUT_A4
EVRC18S03Q015010R
FL500
7.5pF 10ohm 7.5pF
1
INOUT_A1
CN500
2
INOUT_A2
3
INOUT_A3
VBAT
4
INOUT_A4
G2
G1
1
EVRC18S03Q015010R
2
FL501
3
4
TP503
5
7.5pF 10ohm 7.5pF
6
1
INOUT_A1
7
2
INOUT_A2
8
3
INOUT_A3
9
4
INOUT_A4
10
11
12
EVRC18S03Q015010R
13
FL503
14
15
16
17
7.5pF 10ohm 7.5pF
18
19
20
1
INOUT_A1
21
2
INOUT_A2
22
3
LCD_LDO_EN
INOUT_A3
23
4
INOUT_A4
24
25
26
EVRC18S03Q015010R
27
FL505
28
29
30
31
R501
32
33
LCD_DIM_CTL
100ohm
34
35
C501
27p
G4
G3
C504
C505
10u
10u
25pF 200ohm 25pF
ECTH0004807
1
10V Over
INOUT_A1
2
INOUT_A2
3
INOUT_A3
4
INOUT_A4
EVRC5S03Q050200R
FL508
25pF 200ohm 25pF
1
INOUT_A1
2
INOUT_A2
3
INOUT_A3
4
INOUT_A4
EVRC5S03Q050200R
FL509
6
7
- 93 -
9
10
9
INOUT_B1
CAM_PWR_EN
8
INOUT_B2
C_MCLK
7
INOUT_B3
C_PCLK
6
INOUT_B4
C_RST
C500
C507
SFEY0013501
NA
NA
9
INOUT_B1
C_HS
8
INOUT_B2
C_VS
7
INOUT_B3
C_SDA
6
INOUT_B4
C_SCK
SFEY0013501
9
C_CD07
INOUT_B1
8
INOUT_B2
C_CD06
7
INOUT_B3
C_CD05
6
INOUT_B4
C_CD04
SFEY0013501
9
INOUT_B1
C_CD03
8
INOUT_B2
C_CD02
7
INOUT_B3
C_CD01
6
INOUT_B4
C_CD00
SFEY0013501
VSYNCOUT
C502
27p
9
L_DATA15
INOUT_B1
8
INOUT_B2
L_DATA13
7
INOUT_B3
L_DATA11
6
INOUT_B4
L_DATA09
SFEY0014801
9
L_DATA07
INOUT_B1
8
L_DATA05
INOUT_B2
7
L_DATA03
INOUT_B3
6
INOUT_B4
L_DATA01
SFEY0014801
LG Electronics Inc.
LGE Internal Use Only
A
C
D

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