Schematic Diagram - Kenwood RD-M23 Service Manual

K L
PC BOARD (Component side view)
1
TUNER PWB-A2
TP301
C397
R379
SO301
C380
ANTENNA
TERMINAL
R380
C394
FM
75
C301
OHMS
R381
C393
2
C315
GND
C316
R305
C317
B
Q302
C
R304
AM
E
R315
C304
BF301 1 2 3
C319
D306
C302 C349
CHASSIS
GND
3
4
AC110/127/220/
230~240V, 50/60Hz
5
AC POWER SUPPLY CORD
SW651
VOLTAGE SELECTOR
230~240V 220V
6
110V 127V
SO655
AC POWER
INPUT SOCKET
AC110/127/220/
230~240V, 50/60Hz
7
19
M N
X352
R374
22 1
21 2
R373 Q360
20 3 D308
C384 R391
C392
19 4 R372
E
R371 R392
18 5
R386
R365
C
17 6
16 7 B
R387 R385
C387
15 8
L351 R382
14 9
R384
13 10
12 11
IC302
L353 C370
R309
C398
T351 CF352
L303
9 VD302
C355
R308 1
8
C313 2
CF351
7 C308
3
C314
6 VR351
C309
R352
CF302
R303 R353
5
C399
1 2 3
4 1 2 3
1 2 3 4 5 6 7 8 9 10 1112
C305 R313
R307
3 R351
B C360
IC303
R302
2 C307
C
VD303 C350
C303 C361
1
C332 E
C306 24 23 22 21 20 19 18 17 16 15 14 13
Q306
L302 C335
D301
VD301
D302
C364
T306
C329
T302
BR
TO MAIN
4
BR
PWB-A1
3
YL
2
CNP801
YL
1
P17 2-E
T651
POWER TRANSFORMER
(MAIN)
9 7 5 3 1
POWER PWB-B
9 7 5 3 1
CNP651
O P
CNP307 TO MAIN
PWB-A1
P24,25 6,7-G
1 2 3 4 5 6 7 8 9 1011
CNS307
C391
C395
C396
ZD351
C357
R355
3 2 1
C358 Q351
C373
C371
R362
C374
C372
R356
COLOR TABLE
RD(R)
OR
GR
GY
WH(W)
RLY601
D689
D685
R685
4
3
B C E
Q683
2
1
ZD683
CNP707
E C B
R689
Q681
R688
D686
R686
R687
D684
D683
T681
POWER TRANSFORMER
(SUB)
20
Q R
TO MAIN
CNP703
PWB-A1
P17 6-E
CNS652
2 1
CNS707
WH
1
BK
2
BK
3
BK
4
CNS703
GY
11
GY
10
TO MAIN GY
9
PWB-A1 GY
8
GY
7
CNP703
GY
9
GY
P18 3-G 5
GY
4
GY
3
GY
2
BK
1
BR BROWN
RED
ORANGE
YL YELLOW
GREEN
BL BLUE
VL VIOLET
GRAY
CNS702
GY
WHITE 15
GY
14
GY
BK BLACK
13
GY
12
PK PINK GY
TO MAIN 11
GY
PWB-A1 10
GY
9
GY
CNP702
8
GY
7
P18 4-G
GY
6
GY
5
GY
4
GY
3
GY
2
BK
1
3
D688
2
1
C688
C661
D681
NOT
CONNECT
D682
Refer to the schematic diagram for the value of resistors and capacitors.
S T
1
2
R701
LED PWB-A7
Q706 1
2
3 2 1
3
1
B
C R708
3
E
R792 E C B
Q708
1
SW718
2
R781
R779
R780
R742
11 R757
R720B
R758
R739
R751
R741
1
C703
R777
2
C713
R776
3
1
R760
RX701
REMOTE R725
SENSOR
R724
R723
R786
26
25 R727
R789 R729
1
R744
30 2
20
3
35
15
4
40 10 5
6
45
5 1
50 IC701 7
8
51
55 100 9
C705 95
10
60
90 11
65 12
85
13
70 80
R750 14
15
16
17
76
18
75
19
20
21
22
23
24
25
26
27
R772
28
29
30
31
32
33
15
34
35
36
R768
37
38
R767
R766
R765
R764
R763
R762
R774
R761
R735
R731
R783
1 ZD701
R7A1
C711
Q703 E C B
E C B
Q702
C704 R707
R7A8
C712 Q701
C710
3 2 1
R720A
SW712
CD PLAY/PAUSE
TUNING
UP
CD LID
OPEN/CLOSE
DISPLAY PWB-A3