Kenwood KRF-V7771D Service Manual page 34

DG DH
B
Q Q
3 7 6 3 1 5 1 5 0
3 4 5 6 7 8 9
220u10
R998 R999
10K 10K
1/4W 1/4W
Q999
T E
L 1 3 9 4 2 2 9 6 5 1 3
+17V
+31V
7.9V
IC84
11.5V
IN OUT D88
+8V +13V
GND +
+13V + ~
- ~
9V AVR
D86
+B +B
Q83
R805 16.9V
+17V
1.8 1/4W
16.3V 23.6V
24.2V
24.2V
D81
R823
4.7K
Q81
+20V + ~
C805
1000P 17.5V -20V - ~
5.0V +
Q83
+ -25.2V
16V AVR
6 8 R801
3.3K
- 7
R808
5
+ 1/4W
D83 +
1K IC81
+
(1/2) 2.8V
5.0V
+
3 R802
D84
+ 3.3K
2
1 1/4W
1
4 -3.2V
IC81
C806 -17.8V
(2/2)
R825
1000P
4.7K
Q82
-24.5V -25.2V
-16.5V -17.2V
w w w
R806
30.1V
-17V D82
2.7 1/4W Q84
+31V +31V + ~
+
- ~
DI DJ
-B
+B +B
-64.8V 14.7V
C452
+ R471 R480
Q457
2.2K 22 1/4W
4.7u100
1/4W
Q454 D48 D49 16.0V
R473 Q451
15.4V
C458
390 -B -B
-32.1V 47u25 R478 C461
1/4W
9.6V -63.2V
+
100 1000P
-64.0V
15.4V
+
R481
1.3V
0V 10K
Q451,454,456
D45
Q453
POWER LIMITER
0V
Q456
R490
Q453,457
C463
POWER LIMITER
R301
1K
+
R302
1K
R351
1K
+17V
R352
1K
+31V
E7
CN87 CN88 WH1
9
F3
8
7
6
( 1 )
5
4
( 2 )
3
CN84 CN83
2
F1
1
CN86 CN85
F4
-B
+31V
CN82 CN81
F2
x a o
y
. i
DK DL
-B
+B
+
R319
D33 270 1/4W
+
62.6V
9.6V
0.6V
1ST
D44 R467 C307
Q311 Q309
100P
2.2K
9.0V 1.1V
62.1V
+ -1.1V
0V 0V
2ND
Q303
Q301 C313 10.6V
56P
-61.0V
-61.4V
R313 C311
Cch
2.2K 2200P
C301 R305 C309
4.7u50 16K 220u10 Q305 Q307
+
R325 16K
C319 33P
D31
D32
C320 33P
2ND
R326 16K
C302 C310
4.7u50 R306 220u10
+
16K Q306 Q308
R314 C312
SLch SLch
2.2K 2200P -61.4V
-61.0V
C314
56P 10.6V
Q302
Q304
0V 0V
2ND
+
62.1V
9.0V
C308
Q312
100P
Q310
9.6V 0.6V 62.6V
D34
1ST
62.1V
62.6V
9.6V 0.6V
D37
C357
100P
Q359
1.1V
Q361
+
0V
-1.1V
2ND
0V
Q353
C363 10.6V
Q351
-61.0V 56P
-61.4V
R363 C361
Q Q
SRch
2.2K 2200P
C351 R355 C359 3 7 6
Q355 Q357
4.7u50 16K 220u10
+
R375 16K
C369 33P
D35
D36
C370 33P
R376 16K
C352 C360
4.7u50 R356 220u10
+
16K Q356 Q358
R364 C362
Lch
2.2K 2200P -61.4V
-61.0V
C364
56P 10.6V
Q352
Q354
0V 0V 2ND
62.1V
9.0V
C358
Q362
Q360
100P
62.6V
9.6V 0.6V
D38
1ST
62.1V
62.6V
9.6V 0.6V
D42
C404
100P
Q405
1.1V
Q406
0V +
-1.1V
0V 2ND
Q402
C407 10.6V
Q401
-61.0V -61.4V
56P
R407 C406
Rch
2.2K 2200P
R401 C401 R403 C405
Q403 Q404
1K 4.7u50 16K 220u10
+
R413 16K
C410 33P
D41
-B
+31V
u 1 6 3
DM DN
2 4
8 9 9
CN51
-B 1 -B
+B 2 +B
3 GND
Cch
R321
270 1/4W
4 NFB
IC1 : NJM4580ED
5 BIAS(+)
IC21 : NJM2058D
IC23 : TC9162AF
6 BIAS(-) IC81 : NJM4558D
IC82 : TA79005S or uPC7905AHF
IC83 : TA7805S or uPC7805AHF
IC84 : SI-3082V
Q1-6,17 : 2SC4213(B)
R327
Q32 : UN5219 or DTC113ZUA
1K
Q81 : 2SC2458(Y,GR) or 2SC3311A(Q,R)
Q82 : 2SA1048(Y,GR) or 2SA1309A(Q,R)
Q83,85 : 2SB1370
7 GND
Q84,86 : 2SD2061
-B
Q301-304,351-354,401,402, : 2SA992(F,E)
Q305-308,355-358,403,404 : 2SC2631(R,S)
R328
1K Q309,310,359,360,405 : 2SA1123(R,S)
8 NFB
Q311,312,361,362,406 : 2SA1586(Y,GR)
SLch
Q451 : 2SA1535(R,S)
Q453,456 : UN5212 or DTC124EUA
Q454 : 2SA1611(M5,M6)
-1.1V
: 2SC4177(L5,L6)
9 BIAS(+) Q457
: 2SC3244
Q999
10 BIAS(-)
1.1V
D31-38,41,42 : 1SS133 or HSS104
D39,55,56 : DA204K
D43,77,85 : RD5.1JS(B2) or HZS5.1S(B2)
D44,45,58-60,74,75,
78,90,91,96,999 : MA111
D57 : RD24ES(B) or HZS24N(B)
+B D48,49 :
D73 : B30-2493-05
D81,82 : 1B4B41
11 GND
D83,84,998 : RD15ES(B) or HZS15N(B)
12 NFB
D86 : S5688B
13 BIAS(+) D87,89 : RD11JS(B) or HZS11N(B)
D88 : D3SBA20F03
SRch
14 BIAS(-)
3 1 5 1 5 0 8 9
R377
1K
-B VR-2080 (X25-6040-10)
DESTINATION
R378 15 GND UNIT No. G N
1K F1,4
O V
16 NFB COUNTRY ABB. T
U.S.A. K
040-10 NO F50-0067-05
CANADA P1
-1.1V Lch
17 BIAS(+)
KRF-V7771D (X25-6XXX-XX)
18 BIAS(-)
DESTINATION
N
UNIT No. G T
O V
19 GND COUNTRY ABB.
+
1.1V
YES
JAPAN J 040-01
PX Y1 042-91 NO NO
GENERAL MARKET M1
040-21
CHINA C1 YES
+B CHINA C1 133-00
Rch
VR-2090 (X25-6040-11)
20 NFB
DESTINATION
UNIT No. G N O
21 BIAS(+)
F1,4
T V
COUNTRY ABB.
K2
U.S.A.
040-11 YES F50-0067-05
P2
CANADA
22 BIAS(-)
KRF-V8881D (X25-6XXX-XX)
DESTINATION G N
UNIT No.
R414
COUNTRY ABB. T O V
1K
GENERAL MARKET M2
040-22
CHINA C2 YES NO F05-1222-05
CHINA C2 133-01
-B
23 R-GND
+31V 24 +31V
( 25 ) 25 SE RELAY
26 NC
m
27 P-CON
( 28 ) 28 FAN-H/L
( 29 ) 29 FAN-ON/OFF
c o
.
KRF-V7771D/V8881D/VR-2080/2090
Y05-3570-10
DO DP
2
8 9 9
X07-A/8
-CN10
6/6
P
2 4 9 8 2 9 9
W118, W115,
D48 D49 R490
F2,3
122 146
RD18ES(B) or RD10JS(B2) or
F50-0068-05 18K NO YES
HZS18N(B) HZS10N(B2)
R490 W118, W115,
F1,4 F2,3 D48 D49
122 146
RD13ES(B) or RD11ES(B) or
F50-0067-05 F50-0068-05 24K
HZS13N(B) HZS11N(B)
NO YES
RD18ES(B) or RD10JS(B2) or
F05-1222-05 F05-1623-05 18K
HZS18N(B) HZS10N(B2)
W118, W115,
F2,3 D48 D49 R490
122 146
RD18ES(B) or RD10JS(B2) or
F50-0068-05 18K YES NO
HZS18N(B) HZS10N(B2)
W118, W115,
D48 D49 R490
F1,4 F2,3
122 146
RD16ES(B2) or RD15ES(B2) or
F05-1623-05 22K NO YES
HZS16N(B2) HZS15N(B2)
X07-B/8
-E6
6/6
Q
VR-2080/2090(K) (5/6)
KRF-V7771D/V8881D(M) (5/6)