Kenwood KDC-3028-Mk2 Service Manual

CD RECEIVER

KDC-3028/328/MP4028/MP428
/MP5029/MP6029
/W5031/W5031Y/W531Y

SERVICE MANUAL

SWITCH UNIT (X16) TYPE 2

Illustration is KDC-3028

ATT

VOLVOL

AUDAUD

SETSETUPUP

MENUMENU

FFFF

SCAN RDM REP M.RDM

© 2005-4 PRINTED IN JAPAN
B53-0272-00 (N) 1708

SCRL

AUTO

KDC-

DISPDISP

3028

C.S.

AME

This service manual handles only switch unit (X16) for type 2.
Besides, please refer to the service manual of each model.
Switch unit (X16) has been changed from the following serial number to type 2.
Following system microcomputer (IC1: X34) also changes at the same time as changing
switch unit (X16).

MODEL SERIAL No.

KDC-328 50200001~ X16-3320-11 X34-3390-11 784225GC280A TDF-53D/O Y33-2230-66
KDC-3028 50100501~ X16-3320-11 X34-3390-12 784225GC280A TDF-53DB/O Y33-2230-67
KDC-MP4028 50200001~ X16-3320-10 X34-3380-10 30624MGPA44GP TDF-MP54DB/O Y33-2230-60
KDC-MP428 50200001~ X16-3320-10 X34-3380-11 30624MGPA44GP TDF-MP54D/O Y33-2230-62
KDC-MP5029 T0200001~ X16-3320-22 X34-3390-21 784225GC279A TDF-MP5029/O Y33-2230-63
KDC-MP6029 T0200001~ X16-3320-21 X34-3380-21 30624MGPA44GP TDF-MP6029/O Y33-2230-61
KDC-W5031 T0104001~ X16-3322-71 X34-3392-71 784225GC279A TDF-W5031/O Y33-2230-64
KDC-W5031Y T0200001~ X16-3322-71 X34-3392-71 784225GC279A TDF-W5031/O Y33-2230-64
KDC-W531Y T0200001~ X16-3322-72 X34-3392-72 784225GC279A TDF-W531Y/O Y33-2230-65

SWITCH UNIT

(TYPE2 UNIT)

ELECTRIC UNIT

MCU IC (IC1:X34) TDF NAME

TDF PANEL No.

This product uses Lead Free solder.

A B C D E

KDC-3028/328/MP4028/MP428/MP5029
/MP6029/W5031/W5031Y/W531Y

1

PC BOARD
(COMPONENT SIDE VIEW) (FOIL SIDE VIEW)

SWITCH UNIT
X16-332x-xx (J76-0142-02)

S2

D23

D15

FM

G

IC2

VO

VCC

D22

RESET

C15

AM

D14

6542

D17

D16
D13

D18

DISP

S10

2

C16

3

D9

D12

SWITCH UNIT
X16-332x-xx (J76-0142-02)

C8

R20

R56

KI5

KS1

KS2

KI6

KI2

W5

KI1

W4

R61
R60

C21

R53

Q11

B

Q10

CP11

1

128

Q16

E

B

E

R58

E

R65

E

B

R64

R66

R59

R15

R14

C11

C10

R11

R63

Q15

B

C22

SW5V

R10

R67

R62

103

102 65

D8

3

D11

CP10

IC3

4

1

15

R13

ILL D GND

J1

CNDET

KS4

2

14

REMO

CCW

CW

RST

INT
CS

CLK

R51

GND

ILL+B

IN

ESD

38

R16

R80

Q5

D109

DATA I/O

R57

39

R52

B
E

R1

R2
R3
R4
R5
R6

R7

D102

CP13

D101

C28
C29

R81

BE

PAN5V

D104

D113

R8

R9

Q4

D108

D114

D112

D111

CP12

R103

CP901

C27

D105

C20

R27

R76

C31
C30

D107

C19

R24

R26

R23

R30

FL+B

R75

R73

B
E

B
E

R29

FL+B

64

Q13

R28

Q12

R25

B

Q14

E

R31

R101

R74

R54

R55

KI3-4

D7

D10

X16-332x-xx

Ref. No. Address

1 23

D1

1

D4

IC2 2B

X16-332x-xx

Ref. No. Address

IC3 4E

Q4 5E
Q5 5E

Q10 3E

5

D26

SRCQ

D25

Q11 3E
Q12 4E
Q13 4E
Q14 5E
Q15 3E
Q16 3E

ED1

D20

6

R102

C13

S1

D24

C17

D2
D5

P1

D21

C14

S27

D19

ATT

7

D6

D3

VOL

AUD

KS3

Refer to the schematic diagram for the
values of resistors and capacitors.

2