Description Of Major Ics - JVC KD-S577 Service Manual

KD-S577

Description of major ICs

HA13158A (IC321) : Power amp
1. Pin layout
1
2. Block diagram
2
STBY
1
IN1
11
IN2
13
IN3
IN4
23
10
1-14
~ 23
14 18
PVCC2
INVCC
INPUTBUFFER1
INPUTBUFFER2
INPUTBUFFER3
INPUTBUFFER4
MUTE
PROTECTOR (ASO
SURGE, TSD)
12
6
PVCC1
3
+
4
AMP1
-
5
7
+
8
AMP2
-
9
15
+
16
AMP3
-
17
19
+
20
AMP4
-
21
22 TAB