Kenwood AR-404 Service Manual page 11

P
QQ
AUDIO UNIT
3 7 63 1515 0
(X09-641X-XX)
(A/9)
1
CN7
DET 15
S LEVEL 14
SD 13
STEREO 12
R ch 11
GND 10
X05-
CN1
2
1/3
L ch 9
14.2V
A +15V 8 +B
-14.9V
-15V 7 B
T MUTE 6
PLL DT 5
PLL CLK 4
PLL CE 3
PLL DO 2
CH SP 1
3
J1
L 1
PHONO
TE
L 13942296513
R 2
4
J2
1
L
CD
2
R
L 3
AUX
5
R 4
L 5
MD/TAPE
REC
R 6
J3
L 1
MD/TAPE
PLAY
R 2
6
3
L
www
TAPE2/MONITOR
REC
R 4
5
L
TAPE2/MONITOR
PLAY
R 6
7
Q
CN8
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
16
W155
10
+15V
12
13
C122
0.01
14.7V
+
+ R
31
16
15
27
L
14
-14.9V
W156
15V
R1 C3 R5
1K 10u16 100
+
R2 C4 R6
1K 10u16 100
+
R17
1K
R18
25
1K
R91
5
1K
R92
24
1K
R21
11
1K
R22
17
1K
R19
1K
R20
21
1K 14.7V
IC4
(1/2)
C115 8
R25 4.7u35
1
+
1K
C116
R26 4.7u35
x ao
+
1K
IC4
(2/2)
. R23 i
7
1K
4
OUTPUT BUF.
R24
1K
R
9
C105
100P
15V
PHONO EQ AMP
+15V
14.7V 0V
IC1
0V
(1/2)
8 C123 R15
3
4.7u35 100
1
0V 2
+
R7 C11 0.012 C13 3300P
+ 360
R9 270K R11 22K
R10 270K R12 22K
+ R8
C12 0.012 Q Q C14 3300P
3 6 7
360
C124 R16
0V 6
4.7u35 100
7
0V 5
+
0V
IC1 4
15V
(2/2)
-14.9V
(BOTTOM VIEW)
24
23
C132
4700P 0V
22
21
20
19
C130 0.82
0V 18
0V
17
C128 5600P
0V 16
15
14
13
12
C34 3.3u50
0V 11
10
9
+15V
8
3
7
2
C83 100P
6
R199 220K
R40
0V 5
12K
u163
4
y
R84 220K
3
R200 220K R38 13K
0V 2
C84 100P R74 39K
6 0V 1
R50 6.8K
5
-14.9V
+15V
15V
S
2 9 9 4
8
8 7 6 5 4 3 2 1
+5.6V
30V
21
+15V
IC3
INPUT
SELECTOR
C79
1000P
3
R156
1.2K
1/4W
Q45
C42
100P
R183
1 3 1 5 0 5 8 2 9 470
26
IC2
0V
E.VOL
BVOL
SELECT
0
T
150K
N
S
12K
150K
12K
NC3
NC2
NC1
m
co
INPUT
.
PORT OUTPUT
15V
T
2 8
9 9
+5.6V
15V
+15V
D28
C107
Q45
10u35
+7V
AVR
8.0V
D1
9 4 2 8 9 9
C108
10u35
MICROCOMPUTER
INTERFACE
TONE
PASS
1
-7.6V
7V
+15V