Kenwood KRF-V7773D Service Manual page 34

CR CS
G
(X11-38XX-XX) (A/4)
CN315
1 2 3 4
CN313
NC 1
V.DATA 2
L
V.CK 3
MOTOR GND 4
C535
4.7u50
CN314
1
+
NC 1
V.DATA 2
Lch
V.CK 3
NC 4
CN303
T.ST 1 5
T/SEL CK 2 17
T/SEL DATA 3 18
SEL ST2 4 8
Lch OUT 5 1
Rch OUT 6 2
Cch OUT 7 3
E
SWch OUT 8 4
LSch OUT 9 5
RSch OUT 10 6
+17V 11 +17V
-17V 12 17V
D.REC Lch 13 8
Rch
D.REC Rch 14 7
CN304
C534
ANA.Lch 1 6 4.7u50
2
A.GND 2 11 +
ANA.Rch 3 5
6ch-Cch 4 4
6ch-SWch 5 3
6ch-LSch 6 2
6ch-RS 7 1
D.SEL-C 8 5
D.SEL-B 9 6
F
C537
D.SEL-A 10 7
4.7u50
3
D.GND 11 8
+
5.1V
D.+5V 12 +5V 9
RX.OPT 13 10
Cch
TX.OPT 14 11
D.VDD 15 +B
6.1V
D.VDD 16 +B
D.GND 17
D.GND 18
E301
1
D.GND
2
D.VDD +B
3
17V REF GND
4
17V RETURN
GND
5 -17.6V
-17V 17V
6 16.7V
WH301
+17V +17V
7
P V.VDD +B
8
AVR REF GND 8
9 SWch
AC1 9
10
AC2 10
11 C536
FAN +B +B 11
4.7u50
12
4
FAN GND 12 +
13
+14V +14V
15.4V
CN308
-17V 1 17V
+17V 2 +17V
V.VDD 3 +B
AVR REF GND 4 8
+17V
AC1 5 9
AC2 6 10
N +B
FAN +B 7 11
27.5V C539
4.7u50
FAN GND 8 12 5
+
+14V 9 +14V
V-SEL 10 9 LSch
CVBS 11 10
Y-DET 12 12
SEPC-IN 13 13
6.3V
CN307
V.GND 1 1
FRONT AUX-Y 2 2
FRONT AUX-C 3 3
FRONT AUX-V 4 4
T.ST 5 5
17
T/SEL CK 6 17
18
M T/SEL DATA 7 18
SEL ST2 8 8
SEL ST1 9 19
SEL ST3 10 20
RSch
TUNER Rch 11 14
C538
TUNER GND 12 15
4.7u50
TUNER Lch 13 16 6
+
CN306 R415
180 D402
u-COM VDD
1
(+5V)
17V
u-COM GND 2
1
V.ST 3 1
I B MUTE 4 1
S MUTE 5 3
SB MUTE 6 2
A MUTE 7 4
-10dB ATT 8 5
VB OUT 9
CT CU
R597 C305 IC305(1/2)
47 4.7u50
+
FLch
R315
10K
C319
100P
E.VOL
R581
R316
220K
10K
R305
Lch
10K
Q301
R306
Q302
10K
Rch
R582
220K
IC301
(BOTTOM
VIEW)
FRch
C306
R598 4.7u50
+
47
-17.6V
R599 C325 IC306(1/2)
47 4.7u50
+
Cch
C339 R583
100P 220K
R335
10K
Cch
Q311
R336
Q312
10K
SWch
R340
R584 22K
220K
IC302
E.VOL
(BOTTOM
VIEW)
SWch
C326
R600 4.7u50
+
47
-17.6V
R601 C345
IC307(1/2)
47 4.7u50
+
LSch
16.7V
C359 R585
100P 220K
R355
LSch
10K
Q321
R356
Q322
10K
RSch
R586
220K
E.VOL
IC303
(BOTTOM VIEW)
RSch
C346
4.7u50
-17.6V
+
+B
CV CW
+17V
16.7V
R313
8
5
7 47
6 1
R605
1
R311 13K 47
R413 3.9K C565 10u50
C313 33P
+
R414 6.8K
C407 10u50
15.2V
1
+
R411 R412
F
1.2K 68K
Q409
B MUTE
Q410
1
C406 10u50
2
+
R409 R410
1.2K 68K
Q407
-17.5V
C314 33P
R606
SB MUTE
R312 13K
47
3
Q408
R314 5.2V
2
2
1 47
3 3
C405 10u50
3
IC305(2/2)
4 +
R407 R408
17V
16.7V
1.2K 68K
+17V
Q405 -17.5V
R343
5 8
47 S MUTE
7
6 5
R607 5.2V
47 Q406 3
ON :2.3V
R341 13K 5
C404 OFF :-17.4V
10u50
C333 33P
4
+
R405 R406
1.2K 68K
Q403
A MUTE
ON :2.3V
OFF :-17.4V
Q404
4
C562 100P
C403 10u50
+
R403 R404
2.7K 10K
Q401
0dB/
C334 -10dB
100P
Q402
5
R342
C401 C402
16K
10u50 10u50
R608 15.8V
2
1 47 + +
3 9
4 IC306(2/2)
17V
16.7V D401
+17V
17V
R363
8 -17.6V
5
7 47
6
R609
47
R361 13K 10
C353 33P
C564 100P
C354 33P
R362 13K
R364 47
2
1 R610 47
3 11
4 IC307(2/2)
17V
CX CY
CN301
8 1 AUX Lch
(X25- ) (D/9)
9 2 AUX GND
10 3 AUX Rch
A2
1 4 V. GND 1
3
IN
2 5 AUX-Y
2
3 6 AUX-C
VCC
DIGITAL
4 7 AUX-V OUT 4.9V
1
CN302
GND
5 1 D.SEL-C
6 2 D.SEL-B
A3
7 3 D.SEL-A
4 D.GND 2 3
8
VCC
5.1V
9 +5V 5 D.+5V
4.9V
DVD/6CH
10 6 RX.OPT
2
GND
11 7 TX.OPT
1
OUT
CN311
1 1 FLch
2 A.GND
A4
3 3 FRch
3
VCC
4 A.GND
4.9V
5 5 Cch CD1
2
6 A.GND
GND
R613 47 1
7 7 LB/LSch OUT
OUT
8 Q
A.GND
R614 47
14 9 RB/RSch OUT
10 A.GND
16.7V
+17V 11 +17V A
A5
12 GND
3
VCC
13 A MUTE
4.9V
2 14 SB MUTE
MD/
15 NC 2
TAPE2
GND
1 W62
OUT
CN312
1 A MUTE
4 2 A MUTE
3 3 S MUTE A6
B
1 4 B MUTE 3
VCC
5 A.GND
4.9V
1 6 FLch
CD-R
2
3 7 FRch
GND
5 8 Cch
1 W49
OUT
9 9 SWch
10 10 LSch
A7
11 11 RSch
3
R611 47
VCC
12 12 FLch(ROOMB)
4.9V
R612 47
13 13 FRch(ROOMB) VIDEO 2
2
14 V.GND GND
1 W38
15 VB OUT
OUT
CN309
A8
C
1 13 6ch-RS
3
VCC
2 12 6ch-LS
4.9V
3 11 6ch-SW
VIDEO 3
4 10 6ch-C 2
GND
5 9 Rch IN
1 W17
OUT
6 8 Lch IN
7 A.GND 1
A9
7 6 D.REC.Rch
3
8 5 D.REC.Lch
VCC
16.7V
+17V 4 +17V 4.9V
D404
-17.5V
VIDEO 4
17V 3 -17V
2
GND
2 REF GND
1 W12
1 RETURN GND OUT
CN305
9 1 V-SEL
10 2 CVBS/Y
12 3 Y-DET
R
13 4 SEPC-IN
6.3V
+B 5 V.VDD
16.7V
(X11- )
+17V 6 VCC(+17V)
CN310 IC1 : NJU7313AM
IC2,4,6-9,305-308 : NJM4565MD
1 V ST
IC3 : NJU7311AM
2 NC
IC5 : NJU7312AM
13 3 B PRE OUT R IC301-304 : TC9459F
12 4 B PRE OUT L
Q101-104,111-114,121-124,
5 RSch IN
131-134,301,302,311,312,321,322
6 LSch IN
: 2SC4213(B)
7 u-COM GND
Q401,403,405,407,409
8 8 AUX Lch : DTA113ZUA or
9 9 AUX GND UN5119
Q402,404,406,408,410
10 10 AUX Rch
2
: DTC143TUA or
11 11 A.GND
UN5216
14
W300
D401-403 : U1BC44
12 RB/RSch OUT
D404 : 1SS133 or
7
W301 HSS104A
13 LB/LSch OUT
14 14 T.Rch
DIGITAL LINE
15 15 T.GND
SIGNAL LINE
16 16 T.Lch
R416 10K
GND LINE
B LINE
17 17 T/SEL CLK +B
R417 10K
B B LINE
18 18 T/SEL DATA
19 19 SEL ST1
+B
20 20 SEL ST3
KRF-V7773D/V7773D-B/V9993D (4/6)
CZ DA
R191 10
+5V
1/4W
R192 10
+B +5V
1/4W
R193 10
+B
1/4W
1
R194 10
+B +5V
1/4W
1
1
R245
10K
R195 10
+B
1/4W
15
R196 10
+B
1/4W
14
R197 10
+B
1/4W
13
R198 10
+B
1/4W
12