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A B C D E
KDC-7024/Y,722,8023
1
PC BOARD (COMPONENT SIDE VIEW)
ELECTRIC UNIT X25-966x-xx (J74-1474-12)
CN1
CN2 12 2 IC4
11 1
2
R32
R31
1 2 24
R43
R55
R44
R56
C100
2 9 16 1 25
BE
Q12 C2
8 1
R112
D1
BE J1 L1
Q11
C6
C32 C34 C31 C33
C256
E
R127
D6
Q24
Q13
B E C2
B
C7
C8
Q25 C128 C126
R125
R143
R126
R105 W1
R129
R128
B E
E
I G O BE
Q8
IC3 Q26
L6 C250
D13
B
Q4
C253
C254
D3
C102
3 CN3
BE
E
Q5
BE
C108
R46
R48
Q1
R300
C50
16
EB
B
Q60 22 12 C1 C2 15
D14 23 11
C104
Q59
EB
C49
C252
R23 R47
E
D15 R45 IC2 D25 D26
R21
C41
Q9
D4
D16
C105
D17
EB
Q55 33 1
B
34 44
C42
Q56
EB
C109
R36 R24
C132
C131
R22
R139
R34
R140
C46
R250
4
EB
TEST R268
R138
R141 Q58
EB Q32 Q57
EB
C45
R201
25 1 L5
R35
X2
R253 R252
26 100
R251
7 1 R33
X25-966x-xx
R257
C213
R283
R206
R205
R209
R208
R275
IC8 R102
R202 IC Q Address
IC1
R103 1 4C
R200
R256
8 14 X1
R265
R282
R210
R204
R203
R211
EB
R259
R260
C200 2 4C
Q3 50 76 R234
51 75 R235 3 3A
5V R236
RST
L4 R262 R237 4 2E
R217
R228
R230
C207
C208
D20
8 4B
R207
R216
R218
R219
R220
5
15 5C
R214
1 8
R215
C110 1 3A
IC5 IC15
4 5 3 5B
DATA CLK 24 CN4 1
4 3B
5 3B
C112
1 5 8 3A
1 28
CN6
9 4A
C111
11 2A
C700
CN5 15 1 12 2A
6 13 2A
L2 C113 24 2B
P1
25 3D
26 3C
32 4B
55 4B
56 4B
59 3B
60 3F
102 3F
7
Refer to the schematic diagram for the values of resistors and capacitors. 104 4F
12
F G H I J
KDC-7024/Y,722,8023
1
SUB-CIRCUIT UNIT SWITCH UNIT
X16-2140-10 (J74-1479-02) X16-2190-10 (J74-1484-12)
D12
D16 D17
S15
S14
24
D13
TUN
25 W2 2
D31
D29
D30
73
72
C257 C258
S9
S10
6
C33 A1
R307
R303
D6
R302 1
C255 L7
C5
S5
5
FM
S4
D5
R403
R402
CN3 BE
Q102
3
S19
AM
S3
4
2 1 CN7
2
1 C410
D4
L11
RST
S20
L13
S8
R407 Q104
3
R406
D9
BE
C411
D3
R405 R404
SCRL
S12
L12
X3
24 4
S13
D8
2
D14
D2
AUTO
S7
D7
S18
1
Q1
EB
D15
D1
Q3
D11
BE
SRC
S17
D20
MENU
Q2
S2
BE
5
D19
CONTROL
VOLUME
S21
D18
ATT
S1
144
1
D16
6
D19 D18
3 4
S11
D11
IC3
S6
1 2
D10
D17
X16-2140-10 X16-2190-10
IC Address Q Address
3 6H 1 5J 7
13
K L M N O
KDC-7024/Y,722,8023
1
PC BOARD (FOIL SIDE VIEW)
ELECTRIC UNIT X25-966x-xx (J74-1474-12)
GND
D36
D35
D34
D33
R148
R147
BU
C101
BU
D37
D38
D39
D40
2 TH1
D66
D12
D11
D9
R306
BU
R305
GND
Q28 Q27
D51
C127
R130
D50 E B
C3
B E
8V D52
C4
C401
R3
R1
R2
AM+B
D54 D55 C251
E B
R308
R311
R309
R310
AUDIO-OUT
D53
3 R317
Q103 R G L
R319
R318
R312
C403
PLL+B
R316 C12
R314 C10
C71 R7 C11
VDD
Q2
M1-
M1+
R61 R313
R8
R135 R132
C9
C405
R315
C409
E B B
C408
C129
R134
GND
C16
C15
C22
C21
R301 Q53
C412 C413
8 1 R133
AGND
C130