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A B C D E

KDC-X769
1
PC BOARD (COMPONENT SIDE VIEW)
ELECTRIC UNIT X25-9680-10 (J74-1475-12)


CN1
CN2 12 2 IC4
11 1
2
R6
R4
R5




1 2 24
C100




C257
2 Q12 Q11 9 16 1 25
C8
C7




EB
BE 8 1 L1
D1
R112 J1
C6
E




R127
D6
Q13




C33



C255
B E




C31
C34
C32
B




Q24 Q25 C128 C126
Q26
R143
R126
R125




C256
R105
R128

R129 B E
BE
E




I GO
Q8




IC3
D13
B




D3 C250
C102




3 C50 L6 CN3
D16
C108




C9
E




R46
8 5 R300 R7
Q1




C52 R8
BE BE




Q60 MUTE 16 2
B




C49


IC11 22 12 C11 15 1
23
D17




Q59 11
C104




C51
1 4
R45
IC2
C15
C16
E




C252
C41




R21
8 5
Q9




C43
D4




Q55




C2
C105




BE BE




33 1
B




IC9
34 44 X25-9680-10
D14




C44 Q52 IC Q Address
Q56




C109
R10




C1
R9




1 4 BE
C42




R22
C26
C25
R14




R34
EB
Q51 TEST 1 4C
EB 8 5 C46
C48
4 2 3D
BE BE




Q30 IC10 Q58 R274 R277 PLDA
Q57 3 3A
PLCL
C47 25 1 R278 R251
1 4 C45
4 2E
R252

R33 26 100 L5

R253 6 5B
C131 X2
R201
C200




R256
IC1 8 5B
R257
R200




L4 X1
9 4B
R103




10 4B
EB




50 76
R203




51 75
D8 Q3 11 3C
R237
R236




8 7
R206




B.U5V
R262
R234
R235




15 5C
D20




R228
R230
C124




IC8
R216
R217
R218
R219
R220




1 3A
C121
5
C120 C118
RST 3 5B
14 1
C119 C117 C125 8 3A
1 8
IC15 ROM
5 4 9 4A
4 5 24 CN4 1
CLK
DATA




IC6 11 2A
8 1 SW5V
C116 12 2A
Q15 L3 1 28
13 2A
CN6 15 6B
R113
R115




Q16 EB
D7 16 6B
C115 CN5 15 1 24 2B
P1




6 25 3D
26 3C
C700 30 4B
51 4C
52 4C
55 4C
56 4C
57 4C
58 4C
59 3C
7
Refer to the schematic diagram for the values of resistors and capacitors. 60 3C
102 3F
12
F G H I J

KDC-X769
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
C257


C258




25 2
D30
D29
D31




73




72
W2




S9
S10
6
A1



R307
R303
R302




D6
1
L7
C33



C255
C5




S5
5




FM
S4
R403




D5
R402




Q102
CN3 BE
3




S19
CN7




AM
S3
4
2 1
2
1




D4
L11




RST

S20
S8
3




D9
D3




SCRL

S12
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
2 5I
3 5I
13
K L M N O

KDC-X769
1
PC BOARD (FOIL SIDE VIEW)
ELECTRIC UNIT X25-9680-10 (J74-1475-12)




R148
R146
D37 B.U

D38

D39

D40




D36

D35

D34

D33
C101
B.U

TH1
2
B.U
D66




R306


GND
R305




D12

D11

D9
Q28 Q27




C127




R130
EB
D51 D50
BE

D52 D53
AM+B
C4


C3




E B
R319
R318
R312
R2
R3
R1




R317
3
Q103 R316 C251
R G L
R314 C10




R50
R48

R52
R54
PLL+B C71
R313 C12
R61 C254
R315 D26 C253




R49
R47

R51
R53
R301




C22
C21
VDD