Kenwood KRF-X7775D Service Manual page 34

CR CS
20 18 16 14 12 10 8 6 4 2
19 17 15 13 11 9 7 5 3 1
+8dB-MAX : 3.8V
OTHERS : -16.7V
15
14
CN12
IC24
1 V-B OUT
SELECTOR
6ch-ANALOG/
2 +10dB A
DIG.TONE-ON/OFF
3 HDCD+6dB
SP-B
4 VOL ST1
5 VOL ST2
6 VOL DA
7 VOL CK
10 8 TONE ST
9 9 TONE DA
8 10 TONE CK
11 11 SEL ST3
12 12 SEL ST2
R495
13 13 SEL ST1
14 14 SEL DA
1K
15 15 SEL CK
16 u-COM GND
10
17 T.GND
R497
10K 16 18 TUNER Rch
17 19 TUNER Lch
C493
R491 680K 100P
C485 0.015
9
R499 4.7K
+17V C494
100P
CN13
IC34
7 1 AV AUX Rch
2 AUX GND
24 3 AV AUX Lch
4 REF.GND (17V)
5 5 A.Rch
6 A.GND
C495
7 7 A.Lch
100P
8 RTN.GND (17V)
R498
17V 9 -17V
4.7K
17V
+17V 10 +17V
C486 0.015 11 11 SBR
IC34 12 SB.GND
R492 680K C470
100P TONE
13 13 SBL
CONTROL
14 14 SW
15 15 CE
16 16 SR
17 17 SL
18 18 FR
+17V
17V 19 19 FL
CT CU
(X11-3XXX-XX) (A/2)
PHONO AMP
IC1
(1/2)
R53 C53 R59
2.2K 10u50 100 3 8
+
2
C61 C63
R57 0.012 3300P
360
R61 R63
270K 22K
R62 R64
270K 22K
J1
R58 C62 C64
Lch
360 0.012 3300P
6
R54 C54 R60
7
PHONO
2.2K 10u50 100 5
+ 4
IC1
Rch
(2/2)
D5
-16.6V
R1
Lch
27
1K
CD1
8
6
R2
Rch
4 4
1K
3
R3
Lch 21
2.2K
REC
C105 1000P
R4
Rch
10
2.2K
D6
MD/
TAPE1
R5
Lch
28
ZONE A
1K
IC2
PLAY (BOTTOM
R6
Rch
3
1K
J2
R7
Lch 1
1K
REC
C106 1000P
R8
Rch
2
1K
D7
CD2/
TAPE2
R9
Lch
23
1K
28
PLAY
27
K
25
R10
Rch
8
BI-1
1K
23
31
R11
Lch 20
2.2K
REC
C107 1000P
R12
Rch
11
2.2K
D8
CD-R
R13
Lch
25
1K
PLAY
R14
Rch 6
1K
N
BM-1
CV CW
17.1V
+17V
C65 R67
1 4.7u50 1K 30 28 26
+
31 29 27
C66 R68
-16.5V
4.7u50 1K
R78
+
10
+17V
R77
17V 17V
10
-16.6V
-16.6V
17V
12
C74
100P
C78
100P
R
VIEW)
L
R45
1K
C46 R46
100P 1K
C73
100P
+17V
IC2,3
INPUT
SELECTOR
TAPE2
Q1,2
REC BUFFER 13.3V
+B
REC
R89 C91
MUTE IC4 (1/2)
Lch R83 C85
8 3 470 1u50
1K 4.7u50 1
+
1 2
+
B
R81
R85 100
4.7K
C87 100P
Q1
R82 C88 100P
Q2
4.7K
R86 100
+B
R84 C86
6
R90 C92
1K 4.7u50 7
470 1u50
2 5
+
4 +
Rch
IC4 (2/2)
-16.0V
B
CX CY
24 22 20 18 16 14 12 10 8 6 4 2
CN1
25 23 21 19 17 15 13 11 9 7 5 3 1
1
16
20
+17V
ZONE B
IC3
(BOTTOM
VIEW)
C77
100P
R
L
R47
1K
C48 R48
C75
100P 1K
100P
C108
22u50
+
17.1V
Lch
+17V
C93 R93
IC5 (1/2)
C101 R99
2.2u50 470 8
3
1 4.7u50 47
+
2
+
R97 100
C99 100P
ZONE
B BUFF
C100 100P
R98 100
C102 R100
6
C94 R94
7 4.7u50 47
2.2u50 470
5
+
+
4
IC5 (2/2)
Rch
-16.6V
17V
CZ DA
+17V
BLch
ZONE B
2
3
4
BRch
C141
4.7u50
15
+
FLch
ZONE A
FRch
C142
4.7u50
14
+
20
C181
4.7u50
11
+
Cch
ZONE A
SWch
C182
4.7u50
10
+
C211
4.7u50
13
+
SLch
ZONE A
SRch
C212
4.7u50
12
+
17V