Kenwood KRF-V7771D Service Manual page 27

CC CD
O
(X11-3822-70) (A/7)
CN3
9 8 7 6 5 4 3 2 1
15
14
13
17V
R347
470K
R348
470K
17V
2
+17V
R511
10K
6
4
8
17V
+17V
25
4
C350
0.1u50
+
C14
ON:1.8V
150P
OFF:4.9V
Q22
17V
CE CF
+17V
17V
INPUT SEL. IC2 Lch INPUT SEL.
14 15 14
GND CLK
13 16 13
ST DATA
12 17 12
IN
11 CD2/T2 18 11
7
1
REC
10 19 10
MD/T1
4
5
REC
AV AUX T2 PLAY
9 20
8 21
IN
7 22
OUT
6 23
OUT
5 24
CD2/T2
3
PLAY
4 25
SL
3 26
MD/T1
7
PLAY
2 27
CD1
9
1 28
VSS VDD
-16.5V 16.3V
-16.5V
C16
C13 150P
+17V
0.01
17V 17V
CG CH
IC42
IC1 Rch
STREO & Fch LARGE
2ch
LOW BOOST OFF
15 ANALOG INPUT
GND CLK
LOW BOOST ON
LOW BOOST OFF
DIGITAL
16
LOW BOOST ON
STB DATA
STEREO
17
TONE ON
IN
STEREO EXCEPT
18
CD2/T2
TONE OFF
6
REC
SPEAKER B ON
19
MD/T1
SPEAKER B OFF
5
REC
6ch
ANALOG INPUT
9 20
AV AUX T2 PLAY
BASS PEAK LEVEL SWch
8 21
TEST BASS PEAK
IN
TONE ON LEVEL NON SWch
7 22 NORMAL
OUT
A ROOM B
6 23
OUT
5 24
CD2/T2
PLAY
STAND BY:0V
4 25
POWER ON:16.3V
SR
3 26
MD/T2 +17V
PLAY
2 27 IC3
CD
(1/2)
C25 8 3
47u25
1
1 28
2
VSS VDD +
R27
100
16.3V
REC OUT
BUFF
R28
100
C26
6
47u25 7
5
+
IC3
C17 4
(2/2)
STAND BY:0V
0.01
POWER ON:-16.5V
17V 17V 17V
CI CJ
+17V
17V
( :SW ON)
2 , 27 3 , 26 4 , 25 6 , 23 8 , 21 10 19 , 11 18 ,
SW1 SW2 SW3 SW4 SW6 SW7 SW8
12
( )
CN1
+17V 1 +17V
+
17V 2 -17V
3 GND
4 4 VIDEO2 REC Lch
5 5 VIDEO2 REC Rch
6 6 VIDEO1 REC Rch
+
7 7 VIDEO1 REC Lch
8 ROOM B SEL Lch
9 ROOM B SEL Rch
10 ROOM A SEL Rch 5
( )
11 ROOM A SEL Lch
12 TAPE2 MONITOR Rch
13 TAPE2 MONITOR Lch
14 AUX Lch
15 AUX Rch
CK CL
+17V
17V
C117
10u50
+
IC21
E-VOL.
LOUDNESS
R121 C115 R129
R125
470K
220K 560P 8.2K
D2
R122 C116
220K 560P
R127
470K
C119
100P
C118
10u50
+
C171
10u50
+
R173
470K
R175
470K
C163 100P
C172
10u50
+
C211
10u50
+
R223
470K
R225
470K
C213 100P
C212
10u50
+