Kenwood KRF-V7771D Service Manual page 32

CM CN
Q Q
3 7 6 3 1 5 1 5 0
T E
L 1 3 9 4 2 2 9 6 5 1 3
( 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
17V
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
w w w
CO CP
VR-2080 (X11-3800-10)
DESTINATION R103,104, R351,352,373,374, R375, C346,365,366,
UNIT No.
153,154,203 383,393-395 376,385 375,387,388,393
COUNTRY ABB.
U.S.A. K
00-10 2.7K NO 100 NO
CANADA P1
KRF-V7771D (X11-38XX-XX)
DESTINATION
R103,104, R351, R373,374, R375,
UNIT No. C346
COUNTRY ABB. 153,154,203 352 383,393-395 376,385 375,387,388,393
JAPAN J 00-01 3.3K YES 3.3K
PX Y1
GENERAL MARKET M1 00-21 NO NO
2.7K NO 100
CHINA C1
CHINA C1 13-00
+17V
17V 17V
C117
10u50
-16.5V
+
IC21
FLch
C131
E-VOL.
2.2u50
LOUDNESS
+
R125
R121 C115 R129
470K
220K 560P 8.2K
D2
R122 C116 R128
220K 560P 8.2K
R127
470K
C119
C132
100P 2.2u50
+
FRch
C118
10u50
+17V
+
C171
10u50
17V
+
-16.5V
SLch
C137
2.2u50
+
R173
470K
-16.5V
16.3V
R175
470K
IC23
C163 100P
E-VOL.
C138
2.2u50
+
SRch
C172
10u50
+17V
+
C211
10u50
17V
+
-16.5V
Cch
C143
2.2u50
+
R223
470K
-16.5V
16.3V
IC25
R225
470K
E-VOL.
C213 100P
C144
2.2u50
+
SWch
C212
10u50
+17V
+
x a o
y
. i
CQ CR
VR-2090 (X11-3800-11)
Q17, DESTINATION R103,104, R351, R373,374, R375,
UNIT No. C346
18 153,154,203 352 383,393-395 376,385
COUNTRY ABB.
U.S.A. K2
NO 00-11 2.7K YES NO 100 YES
CANADA P2
KRF-V8881D (X11-38XX-XX)
DESTINATION
C365,366, Q17, R103,104, R351,352,373,374, R375, C346,365,366,
UNIT No.
18 COUNTRY ABB. 153,154,203 383,393-395 376,385 375,387,388,393
YES M2
GENERAL MARKET
00-21
CHINA C2 2.7K NO 100
NO CHINA C2 13-00
NO
+17V
17V 17V
-16.5V
IC51
IC22
(1/2)
4 C135 R109 C103
3
(1/2)
22U50 2.2K 2.2u50 4 C111 R115
+ 1 3
2 + 1 4.7u100 2.2K
- + +
2
- +
R401 4.7K
R105 11K
ON:0.7V
OFF:-15.8V
C109 R131
R113
22P 100
4.7K
Q1 Q3
-20dB AMP
ATT
C110 R132
R114
Q2 Q4
22P 100
4.7K
ON:0.7V
R106 11K
R402 4.7K
OFF:-15.8V
6 C112 R116
6 C136 C104 - 7 4.7u100 2.2K
- 7 22u50 R110 2.2u50 5
+ +
5
+ + +
2.2K 8 IC22
IC51
8
(2/2)
(2/2)
16.3V 16.3V
+17V +17V
17V 17V
IC52 -16.5V
IC24
(1/2)
3 4 C141 R159 C153
(1/2)
+ 1 22u50 2.2K 2.2u50 3 4 C159 R165
2 + 1 4.7u50 2.2K
- + +
2
- +
R405 4.7K
R155 11K
ON:0.7V
OFF:-15.8V C157 R177
R163 22P 100
Q Q
4.7K
3 7 6
Q5 Q7
-20dB AMP
ATT
C158 R178
Q6 R164 Q8
22P 100
4.7K
ON:0.7V R156 11K
R406 4.7K OFF:-15.8V
6 C160 R166
C142 C154 4.7u50 2.2K
6 - 7
22u50 R160 2.2u50
- 7 5
+
+
5
+ +
+ 2.2K 8 IC24
IC52
8
(2/2)
16.3V (2/2) 16.3V
+17V +17V
17V 17V
IC53 -16.5V
IC26
(1/2)
3 4 C147 R209 C203
(1/2)
+ 1 22u50 2.2K 2.2u50 3 4 C209 R215
+ 1 4.7u50 2.2K
2
+ +
-
2
+
-
R409 100
R205 11K
ON:0.7V
OFF:-15.8V C207 R227
R213 22P 100
4.7K
Q9 Q11
-20dB AMP
ATT
C208 R228
R214
Q10 Q12
22P 100
4.7K
R206 20K
ON:0.7V
R410 10K
OFF:-15.8V
C210 R216
6
C148 C204 4.7u50 2.2K
6 - 7
22u50 R210 2.2u50
- 7 5
+
+
5
+ +
+ 2.2K 8
IC26
8 IC53
(2/2)
16.3V (2/2) 16.3V
+17V +17V
(
3 )
D14
( 4 )
( 1 )
( 2 )
u 1 6 3
CS CT
IC1,2 : TC9164AF Q1-12,33-36 : 2SC4231(B)
C365,366,375, Q17,
387,388,393 18
IC3,22,24,26,30,31,51-53 2 4 Q15,17,19,23 : UN5119 or
8 9 9
: NJM4565D DTA113ZUA
NO YES
IC21 : TC9412AP Q16,18,20,22,24 : 2SC4081(R,S) or
IC23,25 : TC9413P 2SC4116(Y,GR)
IC42 : TC9163AF Q21 : 2SA1576A(R,S) or
Q17,
18
IC47-49 : NJM4565L 2SA1586(Y,GR)
NO NO
17V
+17V
ON:0.7V
OFF:-15.8V
R117
1K
MUTE
R118
1K
ON:0.7V
OFF:-15.8V
17V
-16.5V
IC30
C363
(1/2)
10u50 3 4 C367 R377
+ 1 2.2u50 1K
+
2
- +
R375
R393 C365
R167
100 22P
1K
3 1 5 1 5 0 BUFFER 8 9
Q33
SURR.
MUTE
R394 C366
MUTE
100 22P
R168
1K Q34
R376
6 C368 R378
C364 - 7 2.2u50 1K
10u50
5
+
+
+
8 IC30
(2/2)
C361
16.3V
0.01
+17V
17V
C371
-16.5V
0.01
IC31
C373
(1/2)
10u50 3 4 C377 R387
2.2u50 1K
+ 1
+
2
+
-
A MUTE
R385
ON:0.7V
OFF:-15.8V
R395 C375
R217
100 22P
1K
Q35
BUFFER SW
MUTE
MUTE
R218
1K R386 Q36
100
ON:0.7V
OFF:-15.8V ON:0.7V
C378 R388
6 OFF:-15.8V
C374 2.2u50 1K
- 7
10u50
5
+
+
+
8
IC31
(2/2)
16.3V
+17V
m
c o
.
KRF-V7771D/V8881D/VR-2080/2090
Y05-3570-10
CU CV
D2 : DA204U or
1SS302 2
8 9 9
D13 : MA111
D14 : RD11ES(B) or
X25-A/7
HZS11N(B)
-CN23
5/6
M
CN4
17V 1 -17V
2 NC
3 NC
+17V 4 +17V
5 GND
X25-A/7
6 VOL OUT C -CN24
7 VOL OUT SL
5/6
8 VOL OUT SR
9 VOL OUT L N
10 GND
11 VOL OUT R
12 GND
13 NC
14 NC
15 GND
16 DIRECT Lch
17 GND
18 DIRECT Rch
J6
C37
100u10
Rch 1
+
SURROUND
C38
100u10
Lch 2
+
ON:0.7V
OFF:-15.8V
C39
100u10
R379
3 CENTER
+
1K
2 4 9 8 2 9 9
PRE OUT
C40
100u10 SUB
4
WOOFER
+
R380
1K
ON:0.7V
OFF:-15.8V
R389
1K
R390
1K
X25-A/7
-CN21
5/6
O
VR-2080/2090(K) (4/6)
KRF-V7771D/V8881D(M) (4/6)