Sharp LC-20AV7U Service Manual page 37

Main 1/5 Schematic Diagram
NOTE: CBA AND PWB MEANS PRINTED WIRING BOARD.
9-3
Comparison Chart of
Models and Marks
Model Mark
LC-20AV7U A
LC-20SH7U B
MAIN 1/5
Ref No. Position
ICS
IC1202 B-2
IC1205 E-2
TRANSISTORS
Q1001 B-1
Q1002 B-1
Q1003 C-1
Q1004 D-1
Q1005 D-1
Q1006 D-1
Q1007 E-1
CONNECTORS
CN1201 A-4
CN1202 F-4
CN1301 A-2
CN1302 A-1
CN1303 F-1
VOLTAGE CHART
CN1201 CN1202
Pin No. Voltage Pin No. Voltage
1 1.2 1 0
2 1.0 2 24.4
3 0.8 3 24.4
4 0.7 4 0
5 1.0 5 3.3
6 1.4 6 3.3
7 0 7 0
8 1.2 8 10.8
9 0 9 0
10 1.2 10 -6.2
11 0.7 11 0
12 0.5 12 1.2
13 0.7 13 0.7
14 1.3 14 0.5
15 1.1 15 0.7
16 0 16 1.3
17 1.2 17 1.1
18 0.9 18 0
19 0.7 19 1.2
20 0.7 20 0.9
21 1.3 21 0.7
22 1.3 22 0.8
23 0 23 0
24 1.2 24 0
25 1.0 25 0
26 0.9 26 0
27 0.8 27 0
28 1.0 28 2.1
29 1.4 29 0
30 0 30 1.3
31 0 31 1.3
32 1.7 32 0
33 0.3 33 0
34 3.4
35 1.7
A7144SCM1