JVC KD-G285 Bedienungsanleitung

SERVICE MANUAL

2004/6

CD RECEIVER

MA09620046

KD-G258

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Area suffix

UF -------------------------- China

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1-2 (No.MA096)

SPECIFICATION

Design and specifications are subject to change without notice.

AUDIO AMPLIFIER SECTION

Maximum Power Output Front 50 W per channel

Rear 50 W per channel

Continuous Power Output (RMS) Front 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more

than 0.8% total harmonic distortion.

Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more

than 0.8% total harmonic distortion.

Load Impedance 4 Ω(4 Ωto 8 Ωallowance)

Tone Control Range Bass ±10 dB at 100 Hz

Treble ±10 dB at 10 kHz

Frequency Response 40 Hz to 20 000 Hz

Signal-to-Noise Ratio 70 dB

Line-Out Level/Impedance 2.0 V/20 kΩload (full scale)

Output Impedance 1 kΩ

TUNER SECTION

Frequency Range FM 87.5 MHz to 108.0 MHz

AM 531 kHz to 1 602 kHz

[FM Tuner] Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)

50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)

Alternate Channel Selectivity (400 kHz) 65 dB

Frequency Response 40 Hz to 15 000 Hz

Stereo Separation 35 dB

Capture Ratio 1.5 dB

[AM Tuner] Sensitivity 20 µV

Selectivity 35 dB

CD PLAYER SECTION

Type Compact disc player

Signal Detection System Non-contact optical pickup (semiconductor laser)

Number of channels 2 channels (stereo)

Frequency Response 5 Hz to 20 000 Hz

Dynamic Range 96 dB

Signal-to-Noise Ratio 98 dB

Wow and Flutter Less than measurable limit

GENERAL

Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)

Grounding System Negative ground

Allowable Operating Temperature 0ºC to +40ºC

Dimensions (W ×H ×D) Installation Size (approx.) 182 mm ×52 mm ×150 mm

Panel Size (approx.) 188 mm ×58 mm ×11 mm

Mass (approx.) 1.3 kg (excluding accessories)

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(No.MA096)1-3

SECTION 1

PRECAUTION

Please refer to "KD-G255 No.MA056" about this section.

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

Please refer to "KD-G255 No.MA056" about this section.

SECTION 3

DISASSEMBLY

Please refer to "KD-G255 No.MA056" about this section.

SECTION 4

ADJUSTMENT

Please refer to "KD-G255 No.MA056" about this section.

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1-4 (No.MA096)

SECTION 5

TROUBLESHOOTING

5.1 16 PIN CORD DIAGRAM

BL/WH

GY/BK

VI/BK

GN/BK

WH/BK

Black

Red

Blue

White

GN Green

VI Violet

GY Gray

Yellow

REMOTE

ACC

GND

MEMORY

Rear Right

Front Right

Front Left

Rear Left

Remote out

ACC Line

Ground

Memory Backup Battery +

16 YL MEMORY

8 BK GND

7 RD ACC

5 BL/WH REMOTE

4 WH FL+

12 WH/BK FL-

3 GN RL+

11 GN/BK RL-

2 VI RR+

10 VI/BK RR-

1 GY FR+

9 GY/BK FR-

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(No.MA096)1-5

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(No.MA096)

AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

Victor Company of Japan, Limited

WPC

Printed in Japan

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SCHEMATIC DIAGRAMS

CD RECEIVER

No.MA096SCH

2004/6

KD-G258

Area suffix

UF -------------------------- China

Contents

Block diagram

Standard schematic diagrams

Printed circuit boards

2-1

2-2

2-5 to 7

CD-ROM No.SML200406

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!Burrs formed during molding may be left over on some parts of the chassis. Therefore,

pay attention to such burrs in the case of preforming repair of this system.

Safety precaution

!Please use enough caution not to see the beam directly or touch it in case of an

adjustment or operation check.

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2-1

POSITION SET

SWITCH

LOAD&FEED

MOTOR

SPINDLE

MOTOR

SW1, SW2

PICK UP

PSW

SW1, SW2

CN501

IC561

BTL

DRIVER

IC521

DSP&DAC

IC501

RF AMP

IC581

CD L.P.F.

VF1, VF2

VT1, VT2

MD, LD

TRV, TVD

ECM, ECS

FOD

CD.RESET, STATUS

SUBQ, SQCK, TLOCK

FLOCK, CD.SENSE

MLD, MDATA, MCLK

FBAL, TBAL

FE, TE, RFENV

VDET, OFTR

RFDET, BDO

LDON, ARF

CJ601

S601 to S618

KEY MATRIC

KEY0

KEY1

KEY2

IC601

LCD DRIVER

LCD1

LCD DISPLAY

CN701

TU1

FM/AM

TUNER

IC701

CPU

IC161

E.VOLUME

IC301

POWER

AMP.

IC901

REGULATOR

EACH BLOCK

L-CH

R-CH

OUTLF, OUTLR

OUTRF, OUTRR

RLO, RRO

CD.LCH

CD.RCH

LEFT FRONT (+)

LEFT FRONT (-)

RIGHT FRONT (+)

RIGHT FRONT (-)

LEFT REAR (+)

LEFT REAR (-)

RIGHT REAR (+)

RIGHT REAR (-)

COM1

COM2

COM3

S1 to S52

LCD.SCK

LCD.SO

LCD.CE

SDA

SCL

CJ1

ANT

SW1, SW2, PSW

LM, MSW

FEED+

FEED-

SPINDLE+

SPINDLE-

VF1, VF2, VT1, VT2, LD, MD

SPINDLE+, SPINDLE-

FEED+, FEED-

TRACKING+, TRACKING-

FOCUS+, FOCUS-

SPK

BATTERY

CN901

SD/ST

MONO

S.METER

IFC-CONT

FM/AM

SEEK/STOP

FM.OSC

IFC

KEY0

KEY1

KEY2

LCD.SCK

LCD.SO

LCD.CE

REMOCON

ENC1

ENC2

IC681

REMOCON

OUTL

OUTR

JS686

ENCODER

ENC1

ENC2 CH.L

CH.R

IC801

JVC BUS

JBUS.SI

JBUS.SO

JBUS.IO

JBUS.INT

JBUS.SCK SCK

J801

CD CHANGER

CONTROL

JBUS.SI

CJ321

LINE OU

CN001

FOCUS &

TRACKING

COIL

TRACKING+, TRACKING-

FOCUS+, FOCUS-

CD servo control section

Main amplifier section

LCD & Key control section

Block diagram

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2-2

SHEET 1

Parts are safety assurance parts.

When replacing those parts make

sure to use the specified one.

Standard schematic diagrams

Main amplifier section

(SHEET 2)

To CJ601

(SHEET 3)

R733

C706

R715

R718

Q782

Q31

Q902

X701

C703

C704

CJ1

R739

R740

IC701 C705

CN901

R907

R732

R745

R712

C183

C901

C351

R707 Q301

C341

R729

R736

Q351

IC901

R731

R730

C916

C302

C304

C303

C168

R303

R716

D901

C361

C903

C169

C174

C164

C163

C310

C309

R172

R162

R717

R166

R167

R177

R176

C311

Q341

R713

R720

R721

C178

D341

R355

R301

IC801

C902

C317

C318

R341

R351

C33

CN701

R749

R302

R345

Q32

Q903

R342

D903

R91

R81

TU1

IC301

J801

C711 C712

R801

R803

D301

C308

C307

C306

C305

R352

R902

R802

R809

C801

C715

R31

C301

D331

CJ321

R704

R703

C179

Q781

IC161

R11

C915

C32

R34 R35

R33

R32

C783

D781

C782

D716

D904

C93

R735

R737

R738

C905

R743

R191

C702

C909

C322C321

R906

R16

R910

C10

C82

R708

R905

R901

R903

C312

R727

L701

C184

C910

D702

R728

C904

C908

C914

C172

C919

C175 C165

C162

C171 C161

C173

C166

C193

C176

C167

C194

R173 R163

C192

R165

R164

R175

R174

C177

R13

D907

R810

C191

D906

C701

C83

R14

R918

C913

C313

R10

D701

D905

L901

D782

C81

C91

C185

R909

R709

C31

R92

R82

D706

C14

C567

R908

C314

C315

D715

D717

D714

D718

D719

D720

D713

R711

C907

C713

R911

R912

C92

R807

R808

R805

R806

R804

C911

C182 C181

R710

R723

D712

D711

R705

R706

R724

R701

R726

R725

C781

R12

R36

C11

R741

47k

220p

47k

UN2111-X

2SD601A/QR/-X

QAX0759-001Z

QNB0190-001

22k

LC723748-9C23 10/16

12K

47k

4.7K

1/50

3300/16

100P

47K

UN2211-X

100P

47k

22k

2SD1781K/QR/-X

AN80T07A

10K

2.2/50

4.7/25

0.022

0.47

47k

1N5401-TU-15

0.1

22/16

0.47

0.033

0.0330.22

47/16

100/16

22k

47k

27k

UN2211-X

22/16

RB160M-30-X

2SD1781K/QR/-X

4.7K

47k

0.47

2SB709A/QR/-X

QNZ0611-001

1SS355-X

2.2K

HD74HC126FP-X

0.01

1/50

820

4.7u

2.2/50

VMC0334-001

47k

47K

2.2K

2SD601A/QR/-X

2SB709A/QR/-X

100

1SS355-X

2.7K

QAU0311-001

LA47515

QNZ0095-001

0.1 0.1

100k

100

1SS355-X

0.1

QMFZ047-150-T

0.1

100

100k

2SB1197K/QR/-X

10K

0.047

0.1

4.7/25

UN2211-X

1SS355-X

QNN0519-001

47k

0.47

UN2111-X

TEA6320T-X

10k

2.2/50

0.001

1k 10k

1.5k

0.082

1SS355-X

47/16

UDZS6.2B-X

RB160M-30-X

1/50

4.7k

22/16

47K

0.01

1SS355-X

100/10

0.022

100K

47k

0.1/50

22k

4700p

3.3k

9.1k

4.7k

100P

4.7k

4.7u

1/50

0.01

1SS355-X

4.7K

15p

22/16

100/10

0.1

0.22

10/16

0.0056

0.22

0.0082 0.0082

0.22

4.7/25

100/10

4.7/25

47/16

2.2k 2.2k

0.01

47k

4.7/25

10k

0.01

100k

100/10

220/6.3

1/50

2.2k

220p

10K

0.22

100P

1SS355-X

RB160M-30-X

120p

47/16

QQR0703-001

0.1/50

220/10

0.1/50

UDZS11B-X

0.015

0.01

27K

3.3k

220/10

9.1K

1SS355-X

100p

0.01

1SS355-X

0.01

27K

100P100P

1SS355-X

UDZS6.2B-X

UDZS10B-X

UDZS6.2B-X

10k

0.01

0.1

2.2K

4700p

100

22k330k

100k

330k

220/10

1/50 1/50

3.3k

4.7k

UDZS6.2B-X

10K

4.7k

47k

4.7k

220/6.3

1SS355-X

470

8.2k

330P

47k

RF+

RRO

SW5V

SCL

MSW

CD.LCH

KEY1

PSW

RR+

VDD

IFC

LR+

SW1

LCD.CE

MUTE.CONT

KEY0

LRO

CD8V

SDA

SW2

LF+

DETACH

CD.RCH

RF-

RR-

LR-

LF-

CD8V

CD.RESET

STATUS

KEY2

SUBQ

SQCK

MCLK

MDATA

MLD

TLOCK

FLOCK

CD.SENSE

D.GND

ACC5V

A.GND

REMOCON

ILL_10V

LCD.SCK

LCD.SO

KEY0

KEY1

KEY2

CD.RESET

MCLK

MDATA

MLD

FM.OSC

ENC1

ENC2

ACC5V

DIMMEROUT

SDA

SCL

MEMORY.IN

SD/ST

SW2

MONO

PSW

IFC.CONT

ENC1

REMOCON

FM/AM

MONO

IFC

SEEK/STOP

S.METER

MUTE

JBUS.SCK

JBUS.SI

FM/AM

LF+

SD/ST

JBUS.INT

MUTE.CONT

CD.RCH

JBUS.SI

RRO

LR+

LF-

LR-

RF-

DETACH

CH.R

RR+

SW1

RR-

FLOCK

LRO

IFC.CONT

CH.L

CH.R

SCK

JBUS.SO

S.METER

JBUS.SCK

JBUS.SO

JBUS.IO

ENC2

SUBQ

SQCK

LCD.SO

TLOCK LCD.SCK

CD.SENSE

STATUS

LCD.CE

MSW

CD.LCH

FM.OSC

RF+

SEEK/STOP

MUTE

JBUS.INT

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