Sharp LC-20AV7U Service Manual - Page 38

Main 2/5 Schematic Diagram

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Main 2/5 Schematic Diagram NOTE: CBA AND PWB MEANS PRINTED WIRING BOARD. MAIN 2/5 Ref No. Position ICS IC31 I-1 IC61 K-1 IC851 G-3 IC852 J-4 CONNECTORS CN61 L-2 CN62 G-2 9-4 VOLTAGE CHART CN61 Pin No. Voltage 1 0 2 1.1 3 5.2 4 3.1 5 3.2 6 0 7 2.9 8 3.2 9 1.7 10 0.1 11 0 12 3.4 13 0 14 3.1 15 3.1 CN62 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Voltage --3.3 0 3.4 2.6 1.9 --0 0 0 0 0 0 --2.6 2.6 0 ~ ~ ~ A7144SCM2

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9-4
NOTE: CBA AND PWB MEANS PRINTED WIRING BOARD.
A7144SCM2
Main 2/5 Schematic Diagram
CN61
1
0
2
1.1
3
5.2
4
3.1
5
3.2
6
0
7
2.9
8
3.2
9
1.7
10
0.1
11
0
12
3.4
13
0
14
3.1
15
3.1
CN62
1
---
2
3.3
3
0
4
3.4
5
2.6
6
1.9
7
---
8
0
9
0
10
0
11
0
12
0
13
0
14
---
15
2.6
16
2.6
17
0
18
~
19
~
20
~
VOLTAGE
CHART
Pin No.
Voltage
Pin No.
Voltage
MAIN 2/5
Ref No.
Position
IC31
I-1
IC61
K-1
IC851
G-3
IC852
J-4
CN61
L-2
CN62
G-2
ICS
CONNECTORS