Kenwood KDC-C719/C719Y Bedienungsanleitung

B53-0418-00 (N)960

CD AUTO CHANGER

SERVICE MANUAL

COMPACT DISC AUTO CHANGER KDC-C719

NEW ANTI VIBRATION MECHANISM DISC NAME PRESET

TEXT

DISC

COMPACT

DIGITAL AUDIO

CD-R/RW

Screw set

(N99-1784-05)

Holder assy

(J19-5146-02)

Tray

(J99-0614-01)

Service jig W05-0635-00

Parts No.

For initial position setting

Bracket (R)

(J19-5019-03)

Bracket (L)

(J19-5018-03)

Cord with plug

(E30-4291-15)

When transporting these models, always attach CAUTION

CARD and STEPPED SCREW (for transportation).

Model U0400251~

60400351~

67400651~

Serial Number

KDC-C719 (E type)

KDC-C719 (K,M type)

KDC-C719/G4 (M type)

Products for European market comply with the

RoHS

Directive.

This product uses Lead Free solder.

REVISED

KDC-C719/C719Y

KDC-C719/G4

KDC-C719/C719Y

KDC-C719/G4

BLOCK DIAGRAM

ASSY (X16-339)

(X32)

(X92)

PICKUP

L.P.S.

12.5MHz

BTL &

TEXT DECODER &

SA5V

SYSTEM u-COM

IC7

IC1

SERVO DSP &

16.93MHz

Q10 Q15,16

Q20

IC8

IC5

BU14V

CH-RST

AUDIO

OUT

IC4

DA5V

IC9

7V/8V

Q21,22

DC MOTOR

DRIVER

AVR

SA5V

D/A CONVERTER &

SCF

MUTE

0bit

Q4,5 Q6-8

SD5V

AVR

CH-MUTE

CH-CON

5L I/F

X16-338

BDA

TR COIL

FO COIL

8V AVR

BU. DET

RESET

P-ON

MUTE

5VREG

HOT

APC

E2PROM

LOE SW

LIM SW

SLED

SPINDLE

ELEVATOR

S8V

EJ SW

ARM SW

MG SW

M5V1

M5V2

S8V

M5V1

RF AMP &

Q12

AVREF0

KDC-C719/C719Y

KDC-C719/G4

COMPONENTS DESCRIPTION

●CD PLAYER UNIT (X32-5810-00)

Ref. No. Application / Function Operation / Condition / Compatibility

IC1 DSP Servo control

IC4 A5V regulator Power supply for 5V audio

IC5 Driver Driving spindle motor, loading/eject operation, elevation operation, driving pick-up ACT

IC7 µ-com Servo control, LX_BUS communication control

IC8 Memory IC ELV operation parameter, Store servo coefficient

IC9 Reset IC

Q1 Current AMP Adjust the current to be applied to the laser

Q4~8 AMUTE SW AMUTE

Q9 SW SA5V

Q10 PON SW PON

Q11 CH RESET SW CH RESET

Q13 CH control SW

Q14 CH MUTE SW CH MUTE

Q16 SW8V

Q17,18 8V SW

Q19 8V/7V SW 8V/7V switching

Q20 BU5V detection SW BU5V detection

Q21,22 BU5V Supply power to IC7

Q30 Anti-scratch measure

Q31 SW Switching loading, eject, and spindle

●SYSTEM MICROCOMPUTER: 784214YGC132A/784217YGC106A (X32: IC7)

Pin No. Pin Name I/O Application

1NOR/RW O Disc detection result

2/TSTB O TEXT data strobe signal

3P_CON O Power supply control signal for video CH

4FOK I Focus-ON status signal input

5/XTALEN O Servo IC oscillation stop signal

6RST O Servo IC reset terminal

7SA0 O Servo IC communication address setting

8SSTB O Servo IC communication strobe

9VDD Positive power supply voltage connection terminal

10 X2 Oscillator connection terminal 2

11 X1 I Oscillator connection terminal 1

12 VSS GND electric potential connection

13 XT2 Sub clock connection terminal 2

14 XT1 I Sub clock connection terminal 1

MICROCOMPUTER’STERMINAL DESCRIPTION

KDC-C719/C719Y

KDC-C719/G4

Pin No. Pin Name I/O Application

15 RESET I Reset

16 FOGUP I Focus gain up terminal

17 MGSW I Magazine switch

18 EJSW I Eject switch

19 COMMSW I 5 line communication new/old switch

20 PACK I TEXT data PACK synch signal

21 CHCON I Changer control input from H/U

22 BUDET I BU power supply detection terminal

23 AVDD A/D converter analog power supply terminal

24 AVREF0 I A/D converter reference voltage input

25 HOT I Temperature rise detection

26 LPS I MD deck up/down position detection

27 LOESW I Loading completion switch

28 LIMSW I Limit switch

29 TOFF I Tracking off mode

30 ADJSEL I Servo auto-adjustment ON/OFF

31 TBANK I Tracking bank switching terminal

32 SIM2 I Model detection terminal

33 AVSS A/D converter standard GND terminal

34 LPSCO O A/D converter reference power supply control

35 AMUTE O Audio mute

36 AVREF1 D/A converter reference power supply

37 SDI I Servo IC communication serial data input

38 SDO O Servo IC communication serial data output

39 SCK O Servo IC communication serial clock output

40 DATAH I Data input from H/U

41 DATAC O Data output from the changer

42 HCLK I/O Communication clock input from H/U

43 REQC O Request of communication with H/U

44 CHMUTE O Audio mute output to H/U

45 TSI I TEXT data input

46 TSO O TEXT data output

47 /TSCK O TEXT clock output

48~71 NC O Not used

72 VSS GND electric potential connection terminal

73,74 NC O Not used

75 PUOK O Pick-up type detection terminal (for production)

76 ELVADJ I MD deck up/down position adjustment mode

77~80 NC O Not used

81 VDD Positive power supply voltage connection terminal

82 PUSEL I Pick-up type detection

83 REQH I Request of communication from H/U

84 SP/LO+ O Spindle/loading control terminal +

MICROCOMPUTER’STERMINAL DESCRIPTION

KDC-C719/C719Y

KDC-C719/G4

Pin No. Pin Name I/O Application

85 SP/LO- O Spindle/loading control terminal -

86 ELV+ O MD up/down control terminal +

87 ELV- O MD up/down control terminal -

88 SIM1 I Standard stack CH destination port

89 SEARCH O Search/play switching port

90 TEST1 I Mechanism duration mode

91 TEST2 I Mechanism duration mode

92 8V/7V O Driver IC for mechanism operation power supply voltage control

93 EEPWR I EEPROM writing mode

94 TEST/VPP I Flash ROM program mode

95 SRVSEL I Servo operation mode (no mechanism operation)

96 SLNSA I Sled blind zone ON/OFF terminal

97 SDA I/O EEPROM data input/output

98 SCL O EEPROM clock output

99 PON O PON output

100 ARMSW I Arm switch

MICROCOMPUTER’STERMINAL DESCRIPTION

ADJUSTMENT

● L.P.S. initial position adjustment procedure

1. Connect the changer to the HEAD UNIT (H/U).

2. While holding the magazine eject button of the changer,

press the reset button of the H/U.

3. After about 3 seconds, release the magazine eject button.

4. Press the SRC button of the H/U to enter the CD-CH mode,

and the H/U's display section indicates “E-88”.

5. Move the mechanism deck to around the 1st stage by press-

ing the DISC- or DISC+ button.

6. Insert the adjustment tool (W05-0635-00) into the tool hole

on the changer mechanism.

7. Then press the DISC+ button to move the mechanism deck

until the mechanism's slider hits the adjustment tool.

8. 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 adjust-

ment completes. (The data is written in the EEPROM at

this time.)

W05-0635-00

● Caution : Note on IC8 (EEPROM)

Be sure to use the W05-1306-00 when replacing the

EEPROM. IC8 stores the digital servo data of the pickup

servo.

Therefore, if the EEPROM does not store servo data, ER-

ROR76 (E-76) will indicate the H/U’s display section at the

moment CD is played.

KDC-C719/C719Y

KDC-C719/G4

ABCDE

PC BOARD (COMPONENT SIDEVIEW)

CN1

Q16

D10

CN2

D11

D12

Q17

Q21

Q22

Q18

D15

D16

Q11

Q20

Q31

D21

D22

D23 D24

IC5

IC4

IC7

IC9

IC1 C19

C15

C16

C17

C52

R96

C72

R76

R99

R127

R133

C71

C11

C61

C63

C68

C69

C70

CP3

R78

R87

R102

R162

R505

C5 C6

C10

R11

R12

R13

R14

R16

R53

R54

R59

R67 R68 R69

R70

R72

R73

R77

R79

R84

R97

R105

R106

R122

R123

R206

R502

R507

R506

C851

R851

R854

R855

R857

R856

119

20 38 1

100

76 100

50 26

IGO

EB EB

F+

T+ T-

F- SP-

SP+ SL-

VC LD A

(E)

(A)

(D)

(F)

B(C)

(B)

GND

CON

CRST

HOT

RST

GND

ELVADJ

PSL

BDET

TOFF

TBANK

ADJSEL

SRH

(QH)

8/7V

SA5V

SD5V

PACK

EFM ASY

TE0

TE2 FE0

EIOP+

(LD)

IOP-

/TSCK

PACK

TSTB

TSI

MGSW

EJSW

ARMSW

PON

SRVSEL

TS2

TS1

/TSTB

N/RW

SDA

SCL

SLNSA

SIM1

HOLD

EMPH

FLAG

DAVDD

AGND

(DH)

AVR0 LPS

COMMSW

LIMSW LOESW

R-CH

L-CH

AMUTE

CRST

CCON

NC LB14V

GND

AGND

B14V

BASE

AVDD

SPLO-

SPLO+

RF0

SGND

GND

RFOK

/RST

/STB

/SCK

SSI

GND

AGC

DAC2

C2D1

LOCK RFCK

PLCK

C2D2

C1D1

DAC1

DAC3

C2D3

C1D2

ATEST

MIRR

SL+

(ELV+)

(ELV-)

VDD

VPP

ROUT

LOUT

(CM)

EEP

CCLK

DC DH

/TSCK

TSO

TSI

DAC0

RMK

ELV-

ELV+

CD PLAYER UNIT X32-5810-00 (J76-0139-11)

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

X32-5810-00

Ref.No. Address

IC1 3D

IC4 3C

IC5 2B

IC7 4B

IC9 4C

Q6 3C

Ref. No. Address

Q7 3C

Q8 3C

Q11 4C

Q16 5D

Q17 5C

Q18 5C

Ref. No. Address

Q20 4A

Q21 5D

Q22 5D

Q31 3A

KDC-C719/C719Y

KDC-C719/G4

JIHGF

PC BOARD (FOIL SIDE VIEW)

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

C75

C55

C204

C205

C206

C34

C14

C200 C201

C202

C203

C56

C62

R17

C85

R81

R114

C640

C64

R124

C59

C67

R74

R75

R153

R154

TH1

C12

C13

C23

C24

C48

C49

C60

C300

C301

CP1

CP17

R10

R15

R20

R57 R58

R85

R86

R93

R95

R98

R108

R110

R111

C21

C46

C47 C192

CP9

CP16

R18

R19

R21

R22

R25

R26

R60

R61

R71

R80

R82

R83

R100

R101

R107

R120

R121

R148

R149

R150

R155

R156

R161

R190 R191

R205

C852

C853

R503

R852

R853

Q32

Q10

Q14

D14

Q13

Q19

Q30

IC8

VR1

CD PLAYER UNIT X32-5810-00 (J76-0139-11)

X32-5810-00

Ref.No. Address

IC8 4H

Q1 2G

Q4 3H

Q5 3H

Q9 2J

Ref.No. Address

Q10 4H

Q13 3H

Q14 2H

Q19 5H

Q30 2F

KDC-C719/C719Y

KDC-C719/G4

KLMNO

PC BOARD (COMPONENT SIDEVIEW)

216

156

1211

CN1

SUB-CIRCUIT UNIT X16-3380-00 (J76-0144-12)

CH-RST CH-MUTE CH-CLK

L-CH

R-CH

CH-CON

BU14V AGND GND

REQH

REQC

DATAC

DATAH

SUB-CIRCUIT UNIT X16-3380-00 (J76-0144-12)

LIMSW

LOESW

MGND

SP-

SL-

SL+

SP+

BLACK

RED

CN1

CN2

SW2

SW1

SUB-CIRCUIT UNIT X16-3390-00 (J76-0145-11)

PC BOARD (FOIL SIDEVIEW)

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

KDC-C719/C719Y

KDC-C719/G4

ABCDE

5.0V

14.4V

7.0V 5.0V

IC4

(X32-5810-0x)

(X16-3380-00)

CN2

D10

Q21

Q22

D11

D14

Q17

Q18

Q19

D15

D21

Q7 D22

Q13

A. MUTE

DRIVE

5V AVR

Q14

CH MUTE

CH CON

BU 5V

AVR

SRV 8V

AVR

SVR 8V

7/8V

(OUTSIDE VIEW)

CN1

(E56-0865-05)

Q20

DETECT

BU DET

D12

LPS

Q16

C75(X92-)

(X92-)

Q32

LPS

LOESW

LIMSW

TOFF

ADJSEL

TBANK

SIM2

AVSS

LPSCO

AMUTE

AVREF1

SDI

SDO

SCK

DATAH

DATAC

HCLK

REQC

CHMUTE

TSI

TSO

TSCK

4.7

C60

22K

R124

220u16

C64

3.3K

R79

100K

R78

4.7

C63

100u16

C62

100K

R76

AVDD

HOT

AVREF0

PACK

CH-CON

BUDET

100K

R95

TH1

10K

R98

100P

C70

CP3 100K

100K

R111

R105

39 R106

40 100

R107

100K

R108

41 100

R148

100

R149

R150

100K

R110

680P

C48

22K

R58

100

R60

22K

R57

680P

C49

100

R61

10u50

C46 680

R53

10u50

C47 680

R54

OUT

GND

4.7

C52

100K

R99

0.1

C69

3.9K

R97

CRST

Lch

Rch

AVREF0

LPS

GND

Q6,7

R121

10K

8/7V

12 6AGND

5CH MUTE

CH CON

12 L ch

CH CLK13

DATAC

DATAH

3BU+14V

GND

1REQH

R ch

REQC

CH RST7

BU14V

CH RST

Rch

A GND

Lch

CH CON

GND

CH MUTE

DATAH

DATAC

CH-CLK

REQC

REQH

GND

BU14V

CH-CON

CH MUTE

A GND

CH RST

R ch

REQC

DATAC

DATAH

L ch

CH CLK

R100

100u16

C59

Q20,21

Q17,18

2.2

C72

C85

R77

18K

C61

0.1

2.2

C71

10K

AGND

BDET

PACK

CON

TODF

ADJSEL

TBANK

(DH)

R502

(CM)

TSI

TSO

TSCK

AGND

LOUT

ROUT

Rch

Lch

DAVDD

2.2

AVDD

8VB14V

BASE

R503

TP7

TP3

TP14

TP8

TP6

TP12

TP5

TP11

TP10

TP13

TP9

TP1

TP4

TP2

CRST

AGND

GND

CCLK

B14V

CCON

GND

C34

C640

220u16

HOT

AVDD

VCC

DAVDD

0.047F5.5

VR1

X32-5810-00 (1/3), X16-3380-00 (1/1)

2SB1565

DTA124EK

DTA143EK

DTC114YUA

DTC124EK

DTC343TK

2SB1295-E

2SB1202-E

2SC4081

DTA124EUA

DTA143EUA

DTC124EUA

DAN202K

DAN202U

DAP202K

DAP202U

DA204U

KDC-C719/C719Y

KDC-C719/G4

FGHIJ

5.0V

3.4V

5.0V

2.5V

7.0V

5.0V

2.5V0V

5.0V

16.934MHz

3.3V

2.5V2.1V2.1V

2.5V

5.0V

∗IC7

IC5

IC8

IC9

Q10

Q11

SYSTEM u-COM

RESET

E2PROM

0bit

MUTE

MOTOR

DRIVER

SER

P-ON

RESET IC

ARM

(X32-5810-0x)

100

ARMSW

PON

SCL

SDA

SLNSA

SRVSEL

TEST/VPP

EEPWR

8/7

TEST2

TEST1

SIM1

ELV-

ELV+

SPLO-

SPLO+

REQH

PUSEL

VDD

ASTB

WAIT

ELVADJ

DVDD1

EMPH

FLAG

DIN

DOUT

SCKIN

SCKO

LRCKIN

LRCK

HOLD

DGND2

C16M

LIMIT

DVDD2

LOCK

RFCK

MIRR

PLCK

DGND3

C1D1

C1D2

C2D1

C2D2

C2D3

BI1-

AI1+

AI1

VCC1

O1-

BI1+

I2-

I2+

I3-

RAMOK

A17

A16

VSS

A15

A14

A13

A12

A10

SAO

COMMSW

RESET

PACK

CH-CON

BUDET

FOGUP

EJSW

MGSW

VSS

XT1

XT2

SSTB

VDD

FOK

RST

XTALEN

TSTB

NOR/RW

XTAL

XGND

XTAL

XVDD

L+

L-

R-

L OUT

DAGND2

DAVDD2

R+

REGC

ATEST

AGND1

TEST0

TSCK

TSTB

DGND4

TSO

TSI

DVDD3

PACK

TEST1

SDA

SCL

VCC

GND

R81

10K

R80

SDA

TS1 TS2

SRH

SIM1

R101

100K

R102

PSL R127

10K

ELVADJ

12.500MHz

100K

R95

PON

C67

0.1

R156

100

R155

R153

4.7K

R154

SCL

0.1

C69

3.9K

R97

R83

R85

47K

R82

R84

Lch

C301

0.1

C16

0.1

16.934MHz

C14

0.1

R20

100K

CP16

ATEST

12K

R26

A11

9.1K

R71

30K

R69

120K

R68 SP+

R190

22K

12K

R21

680P

C21

18K

R22

SP+

3IN

OUT 1

R96

100K

C68

0.1

R133

100K

C200

0.1

SD5V

2.2

C17

16 1K

100K

R10

12K

R191

680P

C192

P-CON

AGND

0.1

C203

0.1

C201

C300

600

EMPH

FLAG

HOLD

LOCK

RFCK

MIRR

PLCK

C1D1

C1D2

C2D1

C2D2

R506

VDD

(QH)

R505

VPP

EEP

SRVSEL

SLNSA

N/RW

TSTB

R507

RST

PACK

CON

COMMSW

10K

R114

4.7K

R853

0.1

C853 0.1

C852

47K

R86

4.7K

R852 R851

47K

R87

0.1

C851 4.7K

48,49

RMK

VDD

ARMSW

EJSW

MGSW

IC7

784217YGC106A

784214YGC132A

0-00

0-01

UNIT

No.

C2D3

PACK

TSO

TSI

TSCK

TSTB

AVDD

VCC

VDD

VCC

SD5V

DAVDD

100K

CP1

100K

CP17

CP9

2 2

3 3

X32-5810-00 (2/3)

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