Kenwood KRF-V9992D Service Manual page 19

CM CN
VR-3090 (X11-3803-81) VR-3100 (X11-3802-91)
DESTINATION DESTINATION
R351, Q17,
UNIT No. C346 18 UNIT No.
352
COUNTRY ABB. COUNTRY ABB.
U.S.A. K1 U.S.A. K
3-81 NO NO NO
CANADA P2 CANADA P1
(X11-380X-XX) (A/7)
+17V
17V 17V
-16.5V
IC21
IC51
FLch
C131
(1/2)
E-VOL.
2.2u50 4
3
LOUDNESS
1
+
2
R121 C115 R129
R401 4.7K
220K 560P 8.2K
R122 C116 R128
220K 560P 8.2K
R402 4.7K
6
C132 7
2.2u50
5
+ IC51
8
16.3V (2/2)
FRch
+17V
C171
10u50
17V
+
-16.5V
IC52
SLch
C137
(1/2)
2.2u50 4
3
1
+
2
R173
470K
R405 4.7K
-16.5V
16.3V
R175
R406 4.7K
470K
IC23
C163 100P
E-VOL. 6
C138 7
2.2u50
5
+ IC52
8
16.3V (2/2)
SRch
C172
10u50
+17V
+
C211
10u50
17V
+
-16.5V
IC53
Cch
C143
(1/2)
2.2u50 4
3
1
+
2
R223
470K
R409 100
-16.5V
16.3V
IC25
R225 R410 10K
470K
E-VOL.
C213 100P
6
C144 7
2.2u50
5
+ IC53
8
16.3V (2/2)
SWch
C212
10u50
+17V
+
CO CP
KRF-V9992D (X11-3800-71)
DESTINATION
R351, C346 Q17, R351, Q17,
UNIT No. C346
352 18 352 18
COUNTRY ABB.
GENERAL MARKET M1
0-71 NO NO NO
2-91 YES YES YES
+17V
17V 17V
-16.5V
IC22
C135 R109 C103
(1/2)
47u35 2.2K 2.2u50 3 4 C111 R115
4.7u100 2.2K
1
+ +
2
+
R105 11K
ON:0.7V
OFF:-15.8V
C109 R131
R113
22P 100
4.7K
Q1 Q3
-20dB AMP
MUTE
ATT
C110 R132
Q2 R114 Q4
22P 100
4.7K
ON:0.7V
R106 11K
OFF:-15.8V
6 C112 R116
C136 C104 4.7u100 2.2K
7
47u35 R110 2.2u50 5
+
+ +
2.2K 8 IC22
(2/2)
16.3V
+17V +17V
17V 17V
-16.5V
IC24
C141 R159 C153
(1/2)
47u35 2.2K 2.2u50 3 4 C159 R165
4.7u50 2.2K
1
+ +
2
+
R155 11K
ON:0.7V
OFF:-15.8V
C157 R177
R163 22P 100
4.7K
Q5 Q7
-20dB AMP
MUTE
ATT
C158 R178
Q6 R164 Q8
22P 100
4.7K
ON:0.7V R156 11K
OFF:-15.8V
6 C160 R166
C142 C154 4.7u50 2.2K
7
47u35 R160 2.2u50 5
+
+ +
2.2K 8 IC24
(2/2)
16.3V
+17V +17V
17V 17V
-16.5V
IC26
C147 R209 C203
(1/2)
47u35 2.2K 2.2u50 4 C209 R215
3
1 4.7u50 2.2K
+ +
2
+
R205 11K
ON:0.7V
OFF:-15.8V
C207 R227
R213 22P 100
4.7K
Q9 Q11
-20dB AMP
MUTE
ATT
C208 R228
R214
Q10 Q12
22P 100
4.7K
R206 20K
ON:0.7V
OFF:-15.8V
6 C210 R216
C148 C204 4.7u50 2.2K
7
47u35 R210 2.2u50 5
+
+ +
2.2K 8 IC26
(2/2)
16.3V
+17V +17V
3
D14
4
1
2
CQ CR
IC1,2 : TC9164AF Q1-12,33-36 : 2SC4231(B)
IC3,22,24,26,30,31,51-53 Q15,17,19,23 : UN5119 or
: NJM4565D DTA113ZUA
IC21 : TC9412AP Q16,18,20,22,24 : 2SC4081(R,S) or
IC23,25 : TC9413P 2SC4116(Y,GR)
IC42 : TC9163AF Q21 : 2SA1576A(R,S) or
IC47-49 : NJM4565L 2SA1586(Y,GR)
17V
+17V
17V
ON:0.7V
OFF:-15.8V
IC29
R117
(1/2)
4 C359 R367
3
1K 1 2.2u50 1K
2
+
R365
100
R118 Q31
C354
1K
150P
ON:0.7V
OFF:-15.8V
Q32
R366
100
6 C360 R368
C356 2.2u50 1K
7
10u50 5
+
+
8 IC29
(2/2)
+17V
17V
-16.5V
IC30
C363
(1/2)
10u50 4 C367 R377
3
1 2.2u50 1K
+
2
+
R375 100
R167
1K BUFFER
Q33
R168
1K Q34
R376 100
C368 R378
6
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
+
ON:0.7V
R385 100
OFF:-15.8V
R217
1K
Q35
BUFFER
R218
1K R386 Q36
100
ON:0.7V
OFF:-15.8V
C378 R388
6
C374 7 2.2u50 1K
10u50
5
+
+
8 IC31
(2/2)
16.3V
+17V
VR-3090/3100(K,P) (4/6)
KRF-9992D(M) (4/6)
CS CT
X25-A/7
-CN23
D2 : DA204U or
1SS302
5/6
D13 : MA111
D14 : RD11ES(B) or
N
HZS11N(B)
SIGNAL LINE
GND LINE
B LINE
+B
B B LINE
CN4
17V 1 -17V
2 NC
3 NC
+17V 4 +17V
5 GND
X25-A/7
-CN24
6 VOL OUT C
7 VOL OUT SL
5/6
8 VOL OUT SR
9 VOL OUT L O
10 GND
11 VOL OUT R
12 GND
13 NC
14 NC
15 GND
R369
16 DIRECT Lch
1K
17 GND
18 DIRECT Rch
R370
1K
J6
C30
100u10
Rch 1
+
PRE OUT
C29
100u10
Lch 2
+
ON:0.7V
OFF:-15.8V
R379
1K
SURR.
MUTE
R380
1K
C37
100u10
Rch 3
+
SURROUND
C38
100u10
Lch 4
+
C39
100u10
5 CENTER
+
A MUTE
ON:0.7V
OFF:-15.8V
R389
1K
PRE OUT
SW
MUTE
R390
1K
ON:0.7V
C40
OFF:-15.8V
100u10 SUB
6
WOOFER
+
KRF-V9992D/VR-3090/3100
Y05-3900-10
CU CV
CAUTION: For continued safety, replace
safety critical components only with man-
ufacturer's recommended parts (refer to
parts list). indicates safety critical com-
ponents. For continued protection
against risk of fire, replace only with
same type and rating fuse(s). To reduce
the risk of electric shock, leakage-current
or resistance measurements shall be
carried out (exposed parts are accept-
ably insulated from the supply circuit)
before the appliance is returned to the
customer.
The DC voltage is an actual reading
measured with a high impedance type
voltmeter with no signal input. The mea-
surement value may vary depending on
the measuring instruments used or on
the product.
X25-A/7
-CN21
5/6
P