Kenwood RXD-655 Service Manual

A BDFHJCEG I
2
1
3
5
7
4
6
AUDIO PROCESSOR
Q603
Q604
Q605
Q606
SYSTEM MUTE
-20dB ATT
D862
OPE AMP
D861
Q865
Q862
Q863
Q864
ZD851
+12V AVR
+10V
AVR
+5V
AVR
Q110
Q111
Q109
REC/PLAY
Q108
Q107
Q104
Q106
Q105
Q103
CNS102
CNP101
SWITCHING
Q850
ERASE
Rch
Lch
R-ch
L-ch
PLAYBACK
HEAD
RECORD/
PLAYBACK
HEAD
TAPE 2
TAPE 1
ZD351
PLL
SW
FM
Q360
SO301
COVERAGE
AM BAND
VD301
AM TRACKING
IF
MPX/AM
DET/FM
FM IF
CNP701 CNS901
AM IFT
ERASE
HEAD
LVL-CTRL
D303
D304
ZDT21
QT21
RDS
DEMODULATOR
D302
D301
CNP301AM
12
Q302
VD302
FM RF
FM RF
COIL
D305
VD303
FM OSC COIL
B.P.F.
CNP301AM
OSC
BUFF.
(E,T,E2)TYPE ONLY
(M),(M3),(M5),(X)TYPE
FM
FRONT END
Q301
FM
FRONT END
FM
IFT
ONLY
(E,T,E2)TYPE ONLY
SW601
CCB
INTERFACE
AUX
DECK
CD
TUNER
D1
1
CE
2
3
VSS
L OUT
4
L BASS
5
6
L TRE
L IN
7
L SELO
8
L4
9
L3
L2
11
10
L1
12
1
T1 T1
24
Hich=T1
112K
112K
2
T2 NF
3
T2
23 22
NF
1u50
+
C627
1u50
+
C623
1u50
+
C619
47P
C642
10K
R617
R624
1u50
+
C629
1u50
+
C625
4.7u50
+
C621
3.9K
R605
0.12
C609
C607
10u50
+
C613
+
C606
100u16
C611
1500P
1
2
10K
1000P
C616
1000P
C615
2.2K
R616
2.2K
R615
2.2K
R622
330
R614
3.3K
R612
1000P
C636
1000P
C635
3.3K
R611
2.2K
R621
330
R613
22K
R620
+
C618
22u50
+
C617
2.2u50
22K
R619
330
R609
330
R610
1
VCC
8
7
2
4
3
-15V
6
5
0.022
C861
33K
R863
68K
R861
+
C863
22u50
100K
R874
22u50
C864
+
1K
R873
100K
R875
47u25
+
C865
100K
R867
1/4W
R866 330
1000P
C866
R880 10K
10K
R871
2.2K
R870
22K
R878
22K
R879
5.6K
R869
5.6K
R868
22K
R852
0.047
C852
100P
C856
680
R856
OUT
GND
IN
0.1
C855
3.3
R855
22K
R853
1/4W
1/2W
+
C850
2200u35
GND
IN OUT
C859
1000P
R854
10K
4700u16
C860
+
100K
R122
1K
R118
330P
C114
330P
C112
+
C153
100u16
56
R120
100u25
+
C116
0.033
C118
4.7K
R115
10K
R113
10K
R114
0.033
C117
100K
R121
330P
C111
100u25
+
C115
1K
R117
330P
C113
5.6K
R125
56
R119
3.9K
R131
560P
C107
560P
C108
2.2K
R103
3.3K
R105
3.3K
R106
4.7K
R109
47K
R107
4.7K
R110
2.2K
R104
47K
R108
180P
C106
180P
C105
1
2
3
4
5
6
7
M GND
ERASE
T2 R2
A GND
T2 R1
T2 L1
T2 L2
T1 R
A GND
T1 L
2
3
1
560P
C102
560P
C101
1K
R101
1K
R102
150
R155
1/4W
Q103-109
6
7
3
5
4
2
1
3
2
1
LG1
5.6K
C385
X352
FM IN
VDD
A OUT X OUT
R387
15P
5
6
3 4
1K
R372
1K
R373
R374
1K
R368
22K
R378
1K
C382
FM/AM DO CL CE NC X IN
5
DI
4
3
2
1
7
6
CF302
C381
12P
VSS
20 21 22
PD
A IN
16 17 18 19
+
R379
2.2K
150
1/4W
R382
C387
C392
1000P
C380
10u16
R380
1.5K
TP301
C393
1u50
R381
10K
+
+
C394
47u16
C397
0.022
AM IN
R359
1.8K
4.7K
R360
R376
47u16
C391
R384
5.6K
8 9
10
1K
+
5.6K
ST IND MO/ST FM/AM IF CONT
11
10
9 8
R385
R383
5.6K
R391
270 1/4W
R392
270 1/4W
IF IN
SD
NC
12 13 14 15
330P
0.01
C386
C396
100u10
C395
0.022
R377
47K
0.022
L351
100uH
+
R351 5.6K
PHASE(FM/AM) AM MIX OUT
R393 1K
CF352
C353 0.022
C389 0.022
C352 10u16
3
T351
+
R352
1K
3
2
1
6 5
4
REG FM IF IN SD GND AM IF IN
R388
C356
1000P
C399 0.022 C354 0.022
8 9
10
C398
CF351
22P
C355
100u10
+
R355
3.3K
+
R353
270
3.9K
+
C357
2.2u50
9 8
7
C358
1u50
11
10
VCC FM DET STEREO PHASE IF OUT
12
1u50 2.7K
C3325
C365 0.022
C366 1000P
C363 0.022
C364
2.2u50
R358
C361 0.022
T306
4
5
1
6
C335
560P
2
C323
0.022
6
1
C334 22P
R323 68K
R336
10K
AM LOW CUT
AM RF IN
AM OSC IN
AM OSC OUT
FM AFC
VSM
3.9K
0.022
21 22 23 24 19 20
+
C367
23
4
C330
15P
T303
C331
0.047
C342
0.022
R365
10K
+
C362
3.3u50
R350
2.2K
R363
R364
2.2K
0.027 0.027
C369 27P
C374
C373
L-ch OUT
R-ch OUT
MPX VCO
FM/AM OUT
MPX IN
MO/ST
16 17 18 14 15
C372
X351
+
C368
1u50
+
+
1u50
+
C371
1u50
13
R361
3.3K
R362
3.3K
R356
1K
TP
R357
470K
SP DET
16 2019
NC NC
1817
SPAN SP RLY
1514
SW +5V - 20dB
131211
- 15V M +12V A GND REC/PLAY
8109
SPA SIG S MUTE
7
T T1 T2 CLK
2
DO
465
T BIAS D GND
3
DI
1
CE
24
1
R627 1K
2
R626 1K R625 1K
6
3
4
5
6 7 8
C605
4.7u50
+
8
10
12
11
12
SP DET
12
SW + 5V
13
SP RLY M +12V GND LVL CTRL L ch
1
- 15V
9
11
M GND(MTR)
11 10
CD +B
87
+B
654
R ch A GND
32
(REG)
L352
100uH
C370 1u50
+
47K
R395
1000P
C388
15K
R112
15V
15V
15V
15V
15V
+12V
+12V +12V
+B
+B
+B
+B +B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+12V
+12V
+B
+B
+B +B
+B
L354
C301
TUN SM RDS-RST
21 22
RDS-RDDA RDS-RDCL RDS-READY NC
23 24 25 26
9
10
11
12
13
14
15
16
XIN
VSSD
VDDD
MODE
RST
RDDA
RDCL
RDS-ID/
8
7
6
5
4
3
2
1
XOUT
TEST
CIN
FLOUT
VSSA
VDDA
MPXIN
VREF
READY
22P
CT23
4.332MHz
22P
CT25
XT21
CT22
0.022
47u25
CT21
+
1K
RT27
RT28
1K
1K
RT29RT32
6.8K
10K
RT31
13
RT21
10K
1K
RT30
2.2uH
LT21
560P
CT26
0.022
CT27
47u25
CT31
+
0.022
CT28
0.022
CT29
LT22
2.2uH
10u16
+
CT32
390
RT22
390
RT23
1/4W 1/4W
10u16
CT24
+
RT25
10K
56K
RT24
56K
RT26
C338
6
1000P
4
2
1
2
1
2
L341
1 3
0.022
CT30
20
13
14
15 16
R370
16
15
14
20
R172
1K 1K
R170
2.2uH
L102
R169
1K
R171
1K
2.2uH
L101
+B
+B
+B
+B
+B +B +B
1000P
C384
R607
C123
2200P
1u50
C867
+
C309
C313
22P
R322
R316
R327
33
C315 4700P C314 4700P
1000P
47K
C317
R325
680
C316
0.022
C318
100P 4.7K
T302
C308 4.7P
R314
22
R313
33K
C312
0.022
100K
1000P
R311
CF303
3
2
L312
C320
1000P
C310
C311
C324 3.9P
T301
C303
10P
R302
C304
4.7P
0.01
C305
C306
C307
10
0.022
10u16
+
R309
10K
RF IN
1
1
MONITOR VCC OSC OSC MIX OUT GND MIX IN FM RF OUT BYPASS
7
6 5
4
3
2
9 8
C338
1000P
1
22
1
+B
+B
R347
+B
L342
2.2uH
C341 0.022
R349 33
C348
0.01
R399
33
R348 680 6.8K
R346
IF OUT
1
+B
GND F OUT
2
3
GND
R369
15
VT
4
VCC
5
ANT GND
6
7
8
C347 0.022
330
CF301
R344 470
C346 0.022
C345 0.022
R345 4.7K
100u16
+
C321
+B
18P 15P
W3
W2
W1
C351 0.022 C350 0.022
1K
470
R375
9KHz/
50KHz 100KHz
10KHz/
220P
C644
220P
C645
W4
W5
1K
R173
R174
1K
W6
W7
0V
3.3V(3.5V)
2.3V(2.1V)
(2.1V)
(1.5V)
2.2V
5.0V
: 3.5V
FM98.0MHz
4.8V
(5.0V)
2.3V
0V (2.2V)
2.6V
(1.5V)
2.2V
1.3V
1.3V
ST : 3.8V
MONO : 2.2V
2.2V
(5.0V)
4.8V
2.2V
2.2V
TUNED : 0V
MONO : 5.0V
2.9V (3.6V)
0V
ST : 0V
5.0V
3.7V(1.2V)
(1.9V)
3.7V
2.5V
0.8V
0.8V
5.1V
2.4V (0V)
(2.5V)
0V
0V
2.4V
2.5V
0V
0V
0V
(10.0V)
0.1V
(0V)
3.7V
3.9V
MONO :
0V
ST :
5.0V
0V
9.3V(0V)
(10.0V)
9.3V
10.0V
12.2V
5.0V
-13.1V
OFF : 0V
MUTE ON : 1.3V
20.0V
CD : 9.8V
12.2V
12.7V
10.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.2V
-13.1V
-11.6V
REC : 9.8V
PLAY : 8.0V
REC : 9.8V
PLAY : 7.3V
PLAY : 0V
REC : 9.8V
0V
REC : 0V
PLAY : 3.9V
0.5V
0V 0.5V0V
2.5V 2.6V
2.6V
2.6V
5.2V
5.2V
0V
0V
0V
5.2V
2.6V
2.0V
5.2V
1.2V
9.3V(0V)
5.0V
ON : 0V
ST IND
OFF : 5.1V
19.9V
3.1V
-10.2V
0.6V
0V
5.4V
2.6V
0.9V
0.7V
8.7V
8.3V
(0.2V)
2.3V
0V 0V
IC601
IC860
Q851
Q852
MECHA BASE
IC302
IC303
TUNER/MAIN SECTION
ICT21
BF301
IC301
FE301

Kenwood RXD-655 Specifications

General

Brand	Kenwood
Model	RXD-655
Category	Stereo System
Language	English