KS-FX202
1-21
HA13158A (IC981) : Power amp
1. Pin layout
2. Block diagram
IN1
IN2
IN3
IN4
STBY
2
1
11
13
23
10
TAB
PROTECTOR (ASO
SURGE, TSD)
INPUTBUFFER1
INPUTBUFFER2
INPUTBUFFER3
INPUTBUFFER4
AMP1
AMP2
AMP3
AMP4
MUTE
PVCC1
PVCC2
INVCC
+
-
+
-
+
-
+
-
12 22
14 18 6
3
4
5
7
8
9
15
16
17
19
20
21
1 ~ 23
1
AMP1
AMP2
2
3
4
5
6
7
8
Pin No.
1
2
3
4
5
6
7
8
Electrical connection
Input 1
Negative feed back 1
Output 1
Power supply; +Vcc
Ground
Output 2
Negative feed back 2
Input 2
UPC1228HA(IC901):Head amp
1.Terminal layout & Block diagram
2.Pin function