JVC KD-LX333R Service Manual page 7

KD-LX333R
TA8273H (IC941) : Power amp
1.Block diagram
INRF
+
0.22 F
AC CONT1
INRR
+
0.22 F
ST BY
+5V
ST ON
REF
+
47 F
INLF
+
0.22 F
AC CONT2
PRE GND
INLR
+
0.22 F
ON TIME
+
22 F
1-22
11
1
12
Stand by
4
Switch
Ripple
10
Filter
15
25
13
14
Muting &
16 ON Time Control
Circuit
Vcc 1/2 Vcc 3/4
6 20
-
+
Protective
circuit
-
+
Mute
circuit
-
+
Protective
circuit
-
+
+
2200 F 0.022 F
OUT RF+
9
OUT RF-
7
GND
8
OUTRR+
5
OUTRR-
3
GND
2
Mute 10K
22
+
3.3 F
Low Level
Mute ON
OUTLF+
17
OUTLF-
19
GND
18
OUTLR+
21
OUT LR-
23
GND
24