Kenwood KRC-509S, Service Manual

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A B D F H J C E G I
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
10 9
R26 R25
R9
R1
1
R22
R23
R24
R18
R17
R19
R21
R20
C7
C6
R10
C2
R12
R13
C1 R1
R4 R3 R2
R7 R8
R5
R6
C10
C9 C11
C5
C4
CP1
CP2
CP3
R14
C8
B
E
B
E
C3
OPEN
76
75
51
50
26
25
1
100
1
15
2
14
B E
E
B
B E
KI4
S.GND
ILL+B
REMO
KI1
KS1
KS4
KI3
VDD
ILL-GND
VLCD1
KS5
KI2
RST
KI5
KS3
DGND
L-DA
T
A
L
L-CE
L-CLK
L-DA
T
A
S
KS2
DIMMER
Q6
Q5
Q7
IC1
D1
Q1
Q2
S31
J1
KI3
KI2
KS1
KI4
KS3
KS4
KI5
KS2
KI1
3
1
2
4
18
1
19
68
RST
AT
T
12
3
4
5
6
TI
DISP
AM
FM
SRC
dB
CLK
D3
D4
D2
IC2
D9
D1
1
D6 D5
D8
D7
D19
D18
D20
D22
D21
D14
D13
D15
D17
D16
ED1
D23
X13-9960-13 (J74-1137-12)
SWITCH UNIT
D10
D2
W12
R108
L10
R89
R90
R221
R124
R1
15
R107
R387
R380
R381
R386
R377
R171
C79
R217
R218
R288
R286
R312
R306
R307
R116
C151
R119
C166
C153
R135
C91
R369
C103
R412
R414
R411
R416
C83
R413
R415
R339
R333
R359
R348
W10
R352
R350
C223
C221
C381
C251
C366
C225
C380
C155
C367
C362
C304
C363
R83
C387
R87
R95
R96
R125
C170
C78
C139
C386
R173
W11
R615
R616
R109
C37
W3
L7
C36
C35
C42
R48
R33
R34
R47
R106
R104
R1
L5
R168
R167
R93
R94
R24
R38
R8
R7
R10
R23
R9
R105
C39
R3 R2
R74
R1
18
C60
R37
C59
C40
C4
C300
R606
R131
R608
R610
R172
R376
R605
R370
R373
R371
R375
R372
R374
R197
W25
W24
W13
R618
R619
W21
R604
R614
R613
R61
1
R612
W23
W20
W22
R617
8
7
1
14
TH1
B E
E
B
B E
E B
E B
E B
E
B
E B
B E
E B
B E
B E
B E
B E
B E
B E
E B
B E
B E
E B
Q33
IC10
D38
D42
Q95
Q17
Q30
Q18
Q21
Q23
Q45
Q44
Q41
Q72
Q71
Q40
Q35
Q34
Q37
Q36
D1
D39
D35
Q92
D34
Q29
D40
D2
D32
D21
D49
D57
Q91
D81
D44
R110
R622
R621
R166
R165
C6
C5
R114
W2
W1
R385
C256
C303
R357
CP12
R321
R322
R315
R320
R319
R323
R324
R289
R301
R620
R313
C137
C138
C135
C136
C156
C163
C157
C131
R198
R162
R161
C99
C98
W30
W31
R361
C102
C101
R400
R409
R403
C352
R402
R410
R338
R335
R337
R342
R343
R340
R341
R327
R325
R326
R328
CP7 R344
W29
W28
W27
W26
R347
R345
R349
C224
C385
C354
C355
C353
C358
C357 C359
C360
C302
C301
R401
C350
C351
R81
R82
R80
CP5
X2
CP3
CP4
CP13
R136
R133
C109
R169
R170
C41
R97
R98
R72
R71
R101
R73
R1
13
R1
17
R102
R76 R77
X1
R78
R1
1
1
R75
C89
R103
R99
C95
C96
C93
C38
R14
R12
R13
R11
C88
R134
R602
R330
R121
R163
R603
R609
R607
TEST
4.332MHz
32.768KHZ
20M
R
L
5V
RST
X3
C222
C226
C111
R404
L1
R91
R92
C92
C361
C252
C364
C112
C365
C356
C80
C87
C253
R100
C147
C90
C84
C85
C132
C82
W103
C33
C31
C34
C32
C81
W114
W1
10
W1
1
1
W108
W109
W102
W105
W116
W106
W101
W107
W119
W118
W122
W115
W117
W120
W121
W123
W104
W127
W124
W125
W126
W112
W113
R
L
VR1
VR2
L11
L3
L4
C94
C29
C1
C3
C2
C27
C30 C28
L8
L9
C190
C133
13
1
2 3
4
5
7
8
6
12
10
11
9
1
9
8
16
B
E
E
B
B E
B
E
E B
E B
1
2
12
11
12
1
2
13
1
4
1
2
4
5
24
1
B E
E
B
1
3
1
25
24 2
25
14
13
1
1
2
3 4
25
26
50
51 75
76
100
1
1
28
15
14
1 10
11
20
21 30
31
40
1 8
9
16
R346
B
E
B
E
B E
BE
BE
B
E
B E
B E
B E
B E B E
BE
B
E
IC11
D43
D46
D82
Q87
Q86
Q27
Q31
Q39
D52
IC15
IC13
IC16
IC2
IC1
D22
Q90
Q3
Q1
Q4
Q24
Q25
Q32
D3
Q2
D41
D37
J3
J1
CN5
IC4
J4
P1
Q42
Q38
D53
Q26
Q28
D31
D36
D33
Q89
CN4
CN3
J2
CN1
CN2
Q88
D16
Q20
Q22
D13
D12
D14
D18
D11
X14-xxxx-xx (J74-1141-12)
D15
D17
A1
SYNTHESIZER UNIT
(x13)
Ref.No. Address
IC1 2B
IC2 6B
Q1 2B
Q2 2B
Q5 4B
Q6 4B
Q7 5B
(X14-)
Ref. No. IC1 IC2 IC4 IC10 IC11 IC13 IC15 IC16 Q1 Q2 Q3 Q4 Q17 Q18 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30
Addtess 5E 4G 2G 4G 5H 5D 5D 4H 2H 2H 2H 2H 3D 5G 3D 4D 4D 4E 3F 3E 4E 4F 4E 4F 4E
Ref. No. Q31 Q32 Q33 Q34 Q35 Q36 Q37 Q38 Q39 Q40 Q41 Q42 Q44 Q45 Q71 Q72 Q86 Q87 Q88 Q89 Q90 Q91 Q92 Q95
Addtess 4E 3E 6E 6D 6D 5D 5D 5D 5E 6D 5E 5D 6D 5G 4F 5G 4H 4H 4H 4H 5I 5H 6I 5G
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299