Only For Training And Service Purposes - LG KG280 Service Manual

4. TROUBLE SHOOTING
LCD Trouble
CIRCUIT
L_DATA00
L_DATA02
L_DATA04
L_DATA06
(50 ohm, 15pF)
L_DATA01
L_DATA03
L_DATA05
L_DATA07
(50 ohm, 15pF)
L_DATA08
L_DATA10
L_DATA12
L_DATA14
(50 ohm, 15pF)
L_DATA09
L_DATA11
L_DATA13
L_DATA15
(50 ohm, 15pF)
L_MAIN_LCD_CS
LCD_RS
LCD_WR
(50 ohm, 15pF)
* NA : U103, C110
R113
LCD_LDO_EN
4.7K
LGE Internal Use Only
LCD CONNECTOR 35pin(ZIP)
FL101
EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1
2 8
INOUT_A2 INOUT_B2
3 7
INOUT_A3 INOUT_B3
4 6
INOUT_A4 INOUT_B4
FL102
EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1
2 8
INOUT_A2 INOUT_B2
3 7
INOUT_A3 INOUT_B3
4 6
INOUT_A4 INOUT_B4
FL103
EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1
2 8
INOUT_A2 INOUT_B2
3 7
INOUT_A3 INOUT_B3
4 6
INOUT_A4 INOUT_B4
FL104
EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1
2 8
INOUT_A2 INOUT_B2
3 7
INOUT_A3 INOUT_B3
4 6
INOUT_A4 INOUT_B4
INOUT_A4 INOUT_B4
4 6
INOUT_A3 INOUT_B3
3 7
INOUT_A2 INOUT_B2
2 8
INOUT_A1 INOUT_B1
1 9
FL105
EVRC14S03Q030050R
VBAT
U103
1 3
VDD VOUT
4 2
NC GND1
6 5
CE GND2
R1114D281D-TR-F
R115
100K C110
1u
2V8_VLCD
* CON Pin 16, LCD Pin 20 : _LCD_RD
LCD_RESET
IF_MODE
R106
LCD_ID
100K
MLED
MLED1
MLED2
MLED3
VSYNCOUT
R107 C109
100K
1u
9671S-35A-GF
IF_MODE LCD IF
H 9 BIT I/F
L 16BIT I/F
2V8_VEXT
2V8_VLCD 2V8_VCAM
R110 R111 0
NA
R112 NA
C112
1u
Copyright © 2007 LG Electronics. Inc. All right reserved.
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CN101
35 * LCD CON : Top Contact Type
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
XF2B-3545-31A-P
ENQY0010901
2V8_VLCD
R108
NA
IF_MODE
R109
47K

Only for training and service purposes