Kenwood KAC-8404 Service Manual page 12

U
KAC-8404
+B
C311
6P
Q311
R321
47K
C315
3P
D305
C317 C322
100P 100P
Q309 Q313
D303
D304
B
Q310 Q314
D306
C318 C323
100P 100P
C316
3P
R322
47K
Q312
C312
6P
+B
C411
6P
Q411
R421
47K
C415
3P
D405
C417 C422
100P 100P
Q409 Q413
D403
B
D404
Q410 Q414
D406
C418 C423
100P 100P
C416
3P
R422
47K
Q412
C412
6P
+B
7 5 3
8 6 4
CN4
X09-
1/2 C
CN44
12
X08-4430-10 (3/3)
V
15V
+15V
ATT DRV
31
+15V
R727 150K
3
1
R730
2
34
IC10
10K
(1/2)
33
32
IC10
(2/2)
R736
6 8
7
5
10K
4
R733
150K
TP723
TP704
37
TP707
TP705
36
Q704
35
Q703
38
DC PROTECTION
41
TP717 Q707
R712
6.8K
44
TP715
43
42
TP716
R713
6.8K
TP718
Q708
R337
10
POP NOISE-MUTE
C5 C6
TP720
R720
10u50 10u50
12K
47
+ +
46
45
-33.6V
48
33.6V
1 11 9 7 5 3
2 12 10 8 6 4
CN3
X09-
1/2 B
CN33
W
TP721
R726
4.7K
R724
100K
R732
4.7K
15V
58
R701
2.2K
TP703
Q701
TP702
Q702
55
54
R707
Q705
47K
56
Q706
R718
Q709
47K
CN5
TP719
58 8
57 7
56 6
55 5
OVER CURRENT
54 4
3
2
1
R722
Q710
4.7
C707
10u50
+
11V AVR
1
KAC-8404 (2/2)
2 1 2 1
2
CN7 CN6
FAN FAN
X
2SA817A-F
2SA992-A
2SC1627A-F
2SC1845-A
2SA1576A
2SC3419
E C
2SB1375-F
2SD2012-F
2SC4081
X09-
WH5
ATT
A-MUTE
1/2
POP MUTE
DTA114EUA
DC OFFSET
D
PRTECTION
OVER CURRENT
GND
SW14V
Y
1
B
C
E
2
3
B
4
5
6
7