LG KP260 - Page 62

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4. TROUBLE SHOOTING
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CIRCUIT
4
INOUT_A4
9
INOUT_B1
INOUT_B2
8
7
INOUT_B3
INOUT_B4
6
FL300 ICVE10184E150R101FR
G1
5
G2
10
INOUT_A1
1
2
INOUT_A2
INOUT_A3
3
2
3
INOUT_A3
INOUT_A4
4
INOUT_B1
9
8
INOUT_B2
INOUT_B3
7
6
INOUT_B4
ICVE10184E150R101FRFL301
5
G1
10
G2
1
INOUT_A1
INOUT_A2
1
2
INOUT_A2
INOUT_A3
3
4
INOUT_A4
9
INOUT_B1
INOUT_B2
8
7
INOUT_B3
INOUT_B4
6
FL302 ICVE10184E150R101FR
G1
5
G2
10
INOUT_A1
nLCD_CS
VSYNCOUT
F_nLCD_WR
F_VSYNCOUT
nLCD_RS F_nLCD_RS
L_DATA07
L_DATA05
L_DATA04
L_DATA02
L_DATA03
L_DATA01
L_DATA00
nLCD_WR
F_DATA07
F_DATA02
F_DATA03
F_DATA05
F_DATA00
F_DATA01
F_DATA06L_DATA06
F_DATA04
F_nLCD_CS
ENBY0040501
39p
C344
DNI
C343
2V8_MM
C334
47p
VA304
R322 680
680R321
C335
1u
34
42
43
44
27
45
46
47
48
49
50
28
29
30
31
32
33
25
3
4
5
6
7
8
9
26
35
36
37
38
39
40
4110
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
CN302
1
1u
C333
VBAT
C349
39p
39p
C348
C345
39p
47p
C336
2V5_VMIC
SPK_MICP
REC_N
UKEY_ROW3
POWERKEY
KEY_COL4
LCD_RESET
VBACKUP
UKEY_ROW2
UKEY_ROW1
MLED1
F_DATA07
F_nLCD_WR
F_DATA00MLED2
MLED
SPK_MICN
REC_P
F_VSYNCOUT
F_nLCD_RS
UKEY_ROW4
F_DATA01
LED_BC
F_DATA02
F_DATA03
F_DATA04
F_DATA05
KEY_COL3
F_nLCD_CS
UKEY_ROW0
LCD_ID
F_DATA06
C106
1u
29
3
30
31
32
33
34
35
4
5
6
7
8
9
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
CN100
1
10
11
12
13
R103
20K
2V8_MM
VSYCIN
F_DATA00
F_DATA01
F_DATA02
F_DATA03
F_DATA04
F_DATA05
F_DATA06
F_DATA07
F_nLCD_WR
F_nLCD_RS
F_nLCD_CS
MLED
MLED2
LCD_ID
IM2
F_VSYNCOUT
LCD_RESET
MLED1
IM1
F_nLCD_RD
EUSY0365901
MM LDO
0
R415
VBAT
RP101K282D
CE
3
GND
2
PGND
5
4
VDD VOUT
1
U403
2V8_MM
C424
1u
C423
1u
ONNOFF
TP1