Kenwood KDC-C665Y Service Manual

CD AUTO CHANGER

KDC-C665/Y

SERVICE MANUAL

B51-7554-00(S) 3444

When transporting these models, always attach CAUTION CARD and STEPPED SCREW (for transportation).

CAUTION CARD :B58–1275–04 STEPPED SCREW :N09–4186–25

Metallic cabinet (A01-2654-01)

Dressing panel (A21-3531-02)

*M type only Adhesive tape (J69-0506-04)

Dressing panel (A21-3533-02)

Service jig Parts No.

For initial position setting W05-0635-00

Panel (A64-2002-01)

Blind plate (F19-1303-04)

Holder assy (MAGAZINE) (J19-4687-32)

Cord with plug (E30-4138-05)

*M type only Mounting hardware assy (J21-7618-14)

Bracket (L) (J19-4713-13)

The MECHANISM OPERATION DESCRIPTION is same as model KDC-C660. Please refer to the service manual of model KDC-C660 (B51-7105-00).

*For K•E type Screw set (N99-1645-15)

*For M type Screw set (N99-1628-15)

Bracket (R) (J19-4715-13)

KDC-C665/Y

M5V1

LIM SW

L.P.S.

S4 COMM SW

S2 EJ SW

S3 ARM SW

12.5MHz

AVREF0

X2

SPINDLE

PD

SLED

LOE SW

TR COIL

FO COIL

E

D

B

AC

MOTOR

DRIVER

BTL & DC

ELEVATOR

EEPROM

S-24C01B

HOT

TEXT DECODER &

APC

SD5V

Q1

S8V

LA6556

Q9

UPD784214GC-062-8EU

SYSTEM u-COM

IC7

IC1

RF AMP & SERVO DSP &

16.93MHz

X1

P ON

Q10

7V/9V

M5V1

M5V2

RESET

IC9

Q15,16

8V AVR

Q20

Q21,22

BU.DET

5V AVR

BU14V

DA5V

MUTE

5VREG

S8V

CH CON

CH RST

CH MUTE

5L I/F

AUDIO OUT

T0

IC8

7

4

5

8

2

5

Q6-8

IC4

IC5

AVR

S5V

13

IC11

LC3564ST-70

S-RAM

24

2

S8V

Q12

S1 MG SW

3

HEAD

UNIT

M

MM

SA5V

UPD63711GC

D/A CONVERTER & SCF

PICKUP ASSY

(X13-973)

(X32-466)

(X13-900)

(X92)

OBIT

MUTE

Q4,5

F

BLOCK DIAGRAM

2

MICROCOMPUTER’S DESCRIPTION

System µ-com : UPD784214GC (X32- : IC7)

●Terminal description

KDC-C665/Y

Pin No.

Pin Name I/O Description

1 TOUT O Test output. 2 TSTB O Text data strobe signal. 3 - O NC. 4 FOK I 5 X OFF O H: Servo IC oscillation OFF. 6 RST O L: Servo IC reset.

7AO O 8 STB O L: Data latch.

9 VDD Power supply connection. 10 X2 - Oscillator. 11 X1 I Oscillator. 12 VSS I GND. 13 XT2 - NC. 14 XT1 GND. 15 RESET I L: Reset. 16 BSY 17 MGSW I H: Holder IN. L: Holder OUT. 18 EJSW I H: Eject. 19 COMMSW I H: New. L: Old. 20 PACK I Text data pack sync signal. 21 CHCON I Changer control. 22 BUDET I B-U detection. 23 AVDD I A/D converter power supply.

24 AVREF I 25 HOT I High temperature detection.

26 LPS I Position detection. 27 LOESW I L: Loading completed. 28 LIMSW I L: PU limit switch ON. 29 TOFF I Tracking off mode.

30 ADJSEL I 31 TBANK I H: Gain UP. L: Normal.

32 SIM3 33 AVSS GND.

34 LPSCO O 35 AMUTE O L: Muting ON.

36 AVREF1 A/D converter power supply. 37 SDI I Servo data input. 38 SDO O Servo data output. 39 SCK O Servo clock output. 40 DATAH I Data input from H/U. 41 DATAC O Data output to H/U.

42 HCLK I/O

H: Focusing OK. L: Focusing NG.

H: Parameter setting. L: Address register setting.

A/D converter reference voltage.

H: Servo Adjustment OFF. L: Servo Adjustment ON.

A/D converter power supply. H: OFF.

H: Clock input. L: Clock output.

Pin No.

48~55 A0~A7 O S-RAM address setting. 56~63 D0~D7 I/O S-RAM data input/output. 64~68 A8~A12 O S-RAM address setting. 69~71 A13~A15 O S-RAM enable control.

73, 74 A16, A17 O S-RAM enable control.

90, 91 TEST1, 2 I L: Normal. H: Test.

100 ARMSW I H: Arm switch ON.

Pin Name I/O Description

43 REQC O 44 CHMUTE O L: Muting ON.

45 TSO O Text data output. 46 TSI I Text data input. 47 TSCK O Text clock output.

72 VSS GND.

75 RAMOK O H: OK. 76 ELVADJ I L: Adjustment mode. 77 RD O S-RAM read control. 78 WR O S-RAM write control. 79 WAIT I Wait during S-RAM access. 80 ASTB O NC. 81 VDD Power supply connection. 82 RAMTEST I H: S-RAM check mode.

83 REQH I 84 SP/LO+ O Spindle/Loading + control.

85 SP/LO- O Spindle/Loading - control. 86 ELV+ O 87 ELV- O 88 SIM1 I L: Text. H: No Text. 89 SEARCH O H: Play. L: Search.

92 8V/7V O 93 SLG I H: +3 dB. L: 0 dB (Sled gain). 94 TEST/VPP I 95 SRVSEL I H: Servo mode.

96 SLNSA I 97 SDA I/O EEPROM data input/output. 98 SCL O EEPROM clock output. 99 PON O L: Power ON.

Communication request to H/U.

Communication request from H/U.

Mechanism UP/DOWN control. Mechanism UP/DOWN control.

H: 7 V. L: 8 V (Servo power supply).

L: Flash ROM program mode OFF.

L: Sled non-sensible area ON.

3

KDC-C665/Y

ADJUSTMENT

LPS initial position adjustment procedure

Connect the changer to the H/U. While holding the magazine eject button of the changer, press the reset button of the H/U and, in about 1 second, release the magazine eject button. Press the CD button of the H/U to enter the E-88 mode. Move the mechanism deck to around the 1st stage by pressing the DISC- or DISC+ button. Insert the adjustment tool into the tool hole on the changer mechanism. Then press the DISC+ button to move the mechanism deck until the mechanism’s slider hits the adjustment tool. When the motor locks (stops) press the REPEAT key of the H/U. When the REPEAT key is pressed, the mechanism moves automatically to the 1st stage and the initial position adjustment completes. (The data is written in the E2PROM at this time.)

4

A B C D E F G IH

PC BOARD (Component Side View)

1

CD PLAYER UNIT (X32-4660-00)

X32-4660-00/4670-00 (J74-0966-01)

2

TROFF

R25

Q9

BE

R69

R71

R26

R161

C55

1

18

SL-

SL+

SGND

R22

IC5

821

R111

7

R140

D24

R135

R123

/TSCK

CP11

CP6

CP5

CP12

R126

R122

R113

R50

R105

R110

C73

R136

R138

CP8 CP7

CP14

RAMOK

R137

3619

TSI

SO

R141

51

75

WR

D7

R162

TSO

CP10

R142

R143

76

ELVD+

R102

C71

ELVD-

CP15

R134

REQH

AVref0

IC7

SIM1

R157

SEARCH

ELV+

D3

LPSCO

CP3

GND

TOFF

R125

CP17

VPP

W5

TEST1

TEST2

SEARCH

D15

DATAH

R108

TBANK

LPS

100

R156

SLNSA

SRVSEL

SLG

CP1

ELV-

W9

W21

2650

R68

3

C192

R67

D23

R192

Q31

EB

R70

R194

R193

/CE1

C21

C56

R21

R139

IC11

1

22

BUDET

R86

R151

R112

28

RD

SPLOD+

SPLOD-

ELVADJ

D13

RAMTEST

C184

R184

4

S4

R76

EB

Q20

5

S2

COMMSW

EJSW

D12

C61

R77

C64

D11

6

T+

T-

R180

C180

F-

C190

R191

R190

C194

CN2

C193

16

Q14

FCLK

R121

BE

R101

FDATAO

R107

REQC

AMUTE

D21

B

FDATAI

Q8

E

R150

ADJSEL

BE

25

C67

1

FGND SDA

R155

SCL

8/7V

R149

C70

PACK

1

R148

HOT

IC8

TH1

Q12

PON

R98

12.5

58

TOUT

MHz

4

D4

D22

W17

X2

R99

/CHCON

R129

R154 R153

/TSTB

W6

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

F+

SP-

CH MUTE

Q4

R83

R93

W7

FRESET

R80

R82

C66

Q5

E

W16

W10

FVDD

D20

SP+

B

C52

CP9

B

BE

Q7

E

R32

RESET

C85

M5V2

B

Q10

Q6

E

IGO

IC4

CHRST

R97

E

C72

Q19

Q18

1

R100

EB

DA5V

DAGND

R81

EB

E

B

C69

C68

R95

2 3

Q13

R106

Q11

M5V1

Q17

SUB-CIRCUIT UNIT (X13-9730-00)

X13-9730-00/9740-00 (J74-0987-01)

CN1

1

SP+

CH-CON

CH-MUTE

LIMSW

SP-

BU14V

Rch

Lch

CH-CLK

4

12

DATAH

8

A-GND

13

J1

GND

9

RATAC

REQC

5

S1

1

REQH

VR

R4

CN1

R58

RchLch

R54

MGND

R75

/STB /SCK

23

LOESW

R73

W12

A0

SO

C17

R57

R72

C300

X1

EMPH

WDCK

SD5V

D10

C48

C49

C183

SI

L2

C182

R183

C301

C203

R182

C181

25

26

FLAG

SBSY

R60

R181

C24

C15

C16

TX

RFCK

ARMSW

D9

R61

D16

/RST

LOCK

PLCK

F

L1

D1

FOK

C202

CP16

MIRR

PD

E

C14

C1D2

C1D1

IOP2-

R8

R205

IC1

50

C2D1

C

PN

HOLD

1

TBC C2D2

C200

LD

Vref

Q1

EB

IOP1+

R15

R201

C206

100

C4

R20

C201

51

C75

1

C

C2

TE

TSO

A

B

VCC

R9

R10

3TE

C5 C6

C23

R19

R18

/TSTB

TSI

C

D

R7

FE

C205

76

C13

C12

TEVCA

C204

R84

/TSCK

R5

R6

R152

75

DACO

ATEST

C11

C3

RF

C10

EFM

PUGND

SA5V

R2

R1

R3

C8

R16

R202 R203

C7

C9

ARF

C19

SAGND

ASY

TD

FD

SD

MD

TBAL

FBAL

S1

R87

MGSW

R85

S3

C46

LIMSW

C47

R53

R74

C34

R206

/XENB

EB

R96

1

IC9

4

SDGND

CD PLAYER UNIT (X32-4660-00)

.ON.feR CIQ 1D4 4C4 5A3 7B4 8B4 9C4

11A4

1D3 4C3 5C3 6C3 7C3 8C3 9A3

01C5 11C4 21B4 31C3 41B3 61C6 71C6 81C6 91C6 02A5 12D6 22D6 13A3

sserddA

CN2

MGND

SL+

LOESW

S2

8/12SW

18

1

16

BLACK

RED

SL-

Q21

D5

B

C63

E

R79

Q15

C62

D14

R78

BE

Q16

S8V

ECB

BE

Q22

EB

C59

C60

R124

SUB-CIRCUIT UNIT (X13-9000-00)

D8

(J74-0619-12) X13-9000-00

CH1

CH-RST

15

16

1

2

7

5

6