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KS-FX915R/KS-FX815
LA4743K(IC301):Power AMP
1.Block diagram
IN 1
TAB
IN 2
ST BY
R.F
47 F
IN 3
PRE GND
IN 4
ON TIME C
22 F
1-16
+
11
2.2
F
1
+
12
2.2
F
Stand by
4
Switch
+5V
ST ON
Ripple
10
+
Filter
+
15
2.2
F
N.C
25
13
+
14
2.2
F
Muting &
ON Time Control
16
+
Circuit
Vcc 1/2
Vcc 3/4
6
20
-
+
Protective
circuit
-
+
Mute
circuit
-
+
Protective
circuit
-
+
+
2200 F
0.047 F
OUT 1+
9
OUT 1-
7
PWR GND1
8
OUT 2+
5
OUT 2-
3
PWR GND2
2
Mute 4.7K
22
+
4.7 F
Low Level
Mute ON
OUT 3+
17
OUT 3-
19
PWR GND3
18
OUT 4+
21
OUT 4-
23
PWR GND4
24
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