Kenwood KDC-C519FM, KDC-C719Y Service Manual

CD AUTO CHANGER

KDC-C519FM
KDC-C719/Y

SERVICE MANUAL

© 2002-11 PRINTED IN JAPAN
B51-7993-00 (N) 3379

The MECHANISM OPERATION is the same as model KDC-C710.
Please refer to the service manual of model KDC-C710 (B51-7104-00).

Service jig

For initial position setting

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

Illustration is
KDC-C519FM.

COMPACT DISC AUTO CHANGER KDC-C519FM

NEW ANTI VIBRATION MECHANISM

COMPACT

CD-R/RW

DIGITAL AUDIO

Illustration is
KDC-C719/Y.

COMPACT DISC AUTO CHANGER KDC-C719

NEW ANTI VIBRATION MECHANISM DISC NAME PRESET

COMPACT

CD-R/RW

DIGITAL AUDIO

TEXT

W05-0635-00

1BIT 4D/A CONVER

DISC

10

DISC

10

Parts No.

CORD WITH PLUG
(E30-4291-05 or E30-4954-15)

CASE (A01-2819-08)
: KDC-C519FM

SCREW SET
(N99-1645-15)

DISPLAY UNIT ASSY
(T95-0247-08)
: KDC-C519FM

REP

COMPACT

DIGITALAUDIO

PWR

RDM

TRACK DISC

TRAY
(J99-0614-01)

HOLDER ASSY
(J19-5146-02)

REMOTO CONTROLLER
ASSY(A70-2032-05)
RC-504FM
: KDC-C519FM

BRACKET (L)
(J19-5018-03)

HOLDER ASSY
(B07-2138-08)
: KDC-C519FM

BATTERY
(SIZE:AAA)
Not supplied as
service parts

BRACKET (R)
(J19-5019-03)

MAGICTAPE ASSY
(W01-0763-08)
: KDC-C519FM

2

SW5V

LIM SW

L.P.S.

EJ SW

ARM SW

12.5MHz

X2

SPINDLE/LO-EJ

SLED

LOE SW

TR COIL

FO COIL

BTL

EEPROM

&TEXT DECODER

APC

SA5V

Q1

S8V

SYSTEM u-COM

IC7

IC1

RF AMP&SARVO DSP

16.93MHz

X1

P-ON

Q10

Q15,16

Q20

BU. DET

IC8

7

13

4

5

8

2

IC5

MG SW

8V AVR

S8V

S-RAM

24

C

2

BU14V

CH RST

AUDIO
OUT

5

5VREG

IC4

DA5V

S8V

3

HOT

IC9

RESET

7V/9V

5V

Q21,22

M5V1

M5V2

SW5V

S3

S2

S1

SW5V

M

M

&DC MOTOR

DRIVER

ELEVATOR

M

AVR

SA5V

Q9

&D/A CONVERTER
&SCF

MUTE

0bit

Q6,7

MUTE

Q4,5,8

SD5V

FE

A

D

B

PD

M5V2

AVR

CH-MUTE

CH-CON

5L I/F

IC11

COMM SW

S4

to
HEAD
UNIT

ASSY (X13)

(X32)

(X13)

(X92)

PICKUP

KDC-C519FM/C719/Y

BLOCK DIAGRAM

BLOCK DIAGRAM

KDC-C519FM/C719/Y

ACC

BATT

GND

CN103

KEY MATRIX

CN1

IC1

AVR
(+5V)

CN101

CN101

Q1,6

IC1

2,50-56

19-22,32,66

ACC
DETECTION

LCD DRIVER

RESET
DRIVER

6-43

Q4,5

LCD1

VDD

3

1

IC2

REMOTE
SENSER

IC2

HOLD

VDD

P ON PLL

19-22,32,66

67

u-COM

31

63

12-17 26 61

29,30,60

74,77

CD-CH

13P

CN102

SIGNAL

(L/R)

+V(RF STAGE)

+V(AUDIO)

IC101

ISOLATION
AMP. L.P.F.

2nd.

Q308

MODE 1,2

IC102

IC4

AVR(+5.6V)

EMPHASIS

Q101,201

CH-CONTROL

ALC
DRIVER

IC301

FM-St.
MODULATOR

IC302

ALC
DETECTION

AMP

RIPPLE
FILTER

MPX

Q310

MODE 1,2

Q306,

PILOT
MIX

307

Q304,305
LEVEL CONTROL
Q309
AUDIO MUTE

RF
STAGE

RL1

CN104

ANT IN

CN105

To

RADIO

3