Panel I/F Circuit Diagram - LG DP391B Service Manual

2. PANEL I/F CIRCUIT DIAGRAM

CON20_0.8MM CON20_0.8MM
1
2 G0
3
4
5 G1
6
22 7 G2
8 G3
21 9 B5
10 B4
B3
11
12 B2
B1
13
14 B0
15 R/L VLC 10.0V
16
LED_R
17
18 LED_G
19 IR
K2
20
J802 J802
J803 J803
18 G4
18
G5
19 17
19 17
20 16 R0
20 16
15 R1
15
14 R2
14
R3
13
13
12 R4
12
11 R5
11
U/D
10
10
9 POL
9
STHR
8
8
7 STHL
7
CLK
6
6
5 OEH C827 C827
5
CKV C828 C828 56pF 56pF
4
4
3 OEV 20pF 20pF
3
2 STVL
2
STVR
1
1
CON18_0.8MM CON18_0.8MM
J801 J801
CON12_0.8MM CON12_0.8MM
1 VGH
1
2 VGL
2
VLC
3
3
4
4
LED_POWER
5
5
6
6
7
7
8 3.3V
8
9
9
10
10
14 11 5VA
14 11
LED_B
13 12
13 12
LGE Internal Use Only
R836 R836
0 0
6.936V
R803 R803 R804 R804 C823 C823 R813 R813 R814 R814
56 56 1K 1K 2.2uF 2.2uF 91 91 1.5K 1.5K
R837 R837
0 0
9.475V V1 6.157V
C802 C802
R805 R805 R806 R806 R815 R815 R816 R816
12 12 15 15 0.1uF 0.1uF 110 110 1.5K 1.5K
R833 R833 R838 R838
0 0 0 0
V2
9.414V 5.400V
C803 C803
R807 R807 R808 R808 R817 R817 R818 R818
150 150 6.2K 6.2K 0.1uF 0.1uF 82 82 3.3K 3.3K
R834 R834
0 0
V3
8.034V 4.600V
C821 C821 C804 C804
2.2uF 2.2uF R809 R809 R810 R810 R819 R819 R820 R820
68 68 3K 3K 0.1uF 0.1uF 110 110 1.5K 1.5K
R835 R835 R839 R839
0 0 0 0
7.419V V4 3.843V
C822 C822 C805 C805
2.2uF 2.2uF R811 R811 R812 R812 R821 R821 R822 R822
56 56 1K 1K 0.1uF 0.1uF 91 91 1.5K 1.5K
3-9
L801 L801
10uH 10uH
3.3V
C816 C816
0.1uF 0.1uF
R840 R840
0 0
V5 3.064V V10
C806 C806 C811 C811
C824 C824 R823 R823 R824 R824
0.1uF 0.1uF 2.2uF 2.2uF 56 56 1K 1K 0.1uF 0.1uF
R841 R841
0 0
V6 2.581V V11
C807 C807 C812 C812 L802 L802
C825 C825 R825 R825 R826 R826 FB FB
0.1uF 0.1uF 2.2uF 2.2uF 68 68 3K 3K 0.1uF 0.1uF 3.3V
R842 R842
0 0
V7 V12
1.966V
C808 C808 C813 C813
C826 C826 R827 R827 R828 R828
0.1uF 0.1uF 2.2uF 2.2uF 150 150 6.2K 6.2K 0.1uF 0.1uF
R843 R843
0 0
V8 V13
0.586V
C809 C809 C814 C814
R829 R829 R830 R830
0.1uF 0.1uF 12 12 15 15 0.1uF 0.1uF
V9 0.525V V14
C810 C810 C815 C815
R831 R831 R832 R832
0.1uF 0.1uF 1K 1K 0.1uF 0.1uF
56 56
3-10
K2
IR
3V3P
LED_G
LED_R
C818 C818 C817 C817 LED_B
22uF/16V 22uF/16V 0.1uF 0.1uF
5VA
VCOM
3V3P 3V3P
J804 J804
3V3P
POL
1
STVR 2 G5
OEV 3 G4
R801 R801 CKV G3
4
NC NC STVL 5 G2
G1
6 32
7 31 G0
STHL
8
VCC=3.3V
R802 R802 V9 9
0 0 VGL
10
VGL=-10V
V2 11 CLK
VGH 12
VGH=+15V
V6 STHR
13
U/D 14 OEH
VCOM B5
15
VCOM=3.3V
16 B4
VLC B3
17
AVDD=+10V
V14 18 B2
V11 19 B1
V8 20 B0
V5 21 R/L
V3 V1
22
23 V4
R5 V7
24
R4 25 V10
R3 V12
26
R2 27 V13
R1 28 VLC
R0
29
30 VCOM
CON30_0.5MM CON30_0.5MM
LED_POWER
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CON8_1.0MM CON8_1.0MM
1
2
3
4 10
5 9
6
7
8
J807 J807
J805 J805
1
2
3
4
5
6 32
7 31
8
9
10
11
12
VCC=3.3V
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
AVDD=+10V
29
30
VCOM=3.3V
CON30_0.5MM CON30_0.5MM
J806 J806
CON4_1.0MM CON4_1.0MM
4
3 5
2 6
1
08.PANEL I/F 08.PANEL I/F 08.PANEL I/F
Friday, February 15, 2008 Friday, February 15, 2008 Friday, February 15, 2008