Read Sharp 21HT-15 (serv.man4) Service Manual online
23
21HT-15H
ICs ADITIONAL INFORMATION:AN7523(IC303)
ICs ADITIONAL INFORMATION:AN5522(IC501)
1
2
3
4
5
6
7
8
9
V
CC
Output
GND
Output
Standby
Input
GND
N.C.
V
olume
Pin No.
Description
1
Vcc
2
Ch Output (+)
3 GND
4
Ch Output (-)
5
Standby
6
Ch Input
7
GND (Input)
8
N.C
9
Volume
Circuit Function Block Diagram
Pin Descriptions
Note: Do not apply voltage or current to NC pin from outside
Pin No.
Pin Name
1
Inverting Input
2
Power Supply
3
Pump-up Output
4
GND
5
Vertical Output
6
Vertical Output Power Supply
7
Non-inverting Input
Pin Descriptions
Non-inverting Input
Output Vcc
Output
GND
Pump Up Out
Vcc
Inverting Input
1
2
3
4
5
6
7
Pump Up
Thermal Protection
Amp
+
-
Circuit Function Block Diagram
