JVC KS-AX5500 Manuel utilisateur

SERVICE MANUAL

2005/9

POWER AMPLIFIER

MA19420059

KS-AX5500

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

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

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

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Area suffix

J ------------- Northern America

E ------------- Southern Europe

U -------------------- Other Areas

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1-2 (No.MA194)

SPECIFICATION

Design and specifi cations are subject to change without notice.

SECTION 1

PRECAUTION

1.1 Safety Precautions

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

Power Output 100 W RMS ×4 channels at 4 Ωand [ < or = ] 1% THD + N

Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4 Ω)

Maximum Power Output 800 W

Load Impedance 4 Ω(2 Ωto 8 Ωallowance)

4 Ω(4 Ωto 8 Ωallowance) (Bridge mode)

Frequency Response 5 Hz to 50,000 Hz ( +0, -3 dB)

Input Sensitivity/Impedance 1 V/20 kΩ(0.3 V to 6 V, variable)

Distortion Less than 0.004% (at 1 kHz)

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

Grounding system Negative ground

Dimensions (W/H/D) 400 mm ×264 mm ×63 mm (15-3/4 in. ×10-7/16 in. ×2-1/2 in.)

Mass (approx.) 5.7 kg (12.6 lbs.)

!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.

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SECTION 3

DISASSEMBLY

3.1 Main body

3.1.1 Removing the main board (See Fig.1 to 3)

(1) From the bottom of the body, remove the six screws Aat-

taching the cover.

(2) Disconnect the wire from connector CN2 on the main

board.

(3) Remove the four screws B, the two screws Dattaching the

main board.

(4) From the front side of the body, remove the ten screws E

and the four screws Fattaching the cover.

Fig.1

Fig.2

Fig.3

Cover

CN2

Main board

Rear cover

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3.1.2 Removing the cross over A board, the bass boost A

board and the LED A board (See Fig. 4 to 7)

• Prior to performing the following procedure, remove the main

board.

(1) From the bottom of the main board, remove the two screws

G attaching the bracket.

(2) Remove the screw Hand disconnect the wire.

(3) Disconnect the wire from CN504,CN505 and CN591 on the

main board. Remove the cross over A board and the bass

boost A board with the bracket.

(4) Remove the band, the washer and the nut from the cross

over A board.

(5) Remove the washer and nut from the bass boost A board.

(6) Remove the screw J attaching the LED A board.

Attention:

You can remove the LED A board only from the main board.

Fig.4

Fig.5

Fig.6

Fig.7

Main board

Bass boost A board

Cross over A board

CN591 CN504

CN505

Main board

Bass boost A

board

Cross over A

board

LED A board

Bracket

Band

Nat

Washer

Bracket

Cross over A board

Bass boost A board

LED A board

Band

Nat

Washer

Bracket

Cross over A

board

Bass boost A board

LED A board

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3.1.3 Removing the cross over C board and the cross over

B board (See Fig. 8 to 11)

• Prior to performing the following procedure, remove the main

board.

(1) From the bottom of the main board, remove the two screws

Kattaching the bracket.

(2) Remove the screw Mand disconnect the wire.

(3) Disconnect the wire from CN704 and CN705 on the main

board. Remove the cross over B board and the cross over

C board with the bracket.

(4) Remove the band, the washer and the nut from the cross

over C board.

(5) Remove the washer and nut from the cross over B board.

3.1.4 Removing the LED B board and the bass boost B

board (See Fig.12, 13)

• Prior to performing the following procedure, remove the main

board.

(1) Remove the two screws Nattaching the LED B board and

the bass boost B board.

(2) Remove the two screws Pattaching the LED B board and

the bass boost B board.

Fig.8

Fig.9

Fig.10

Main board

Cross over B board

Cross over C board

CN704

CN705

Bracket

Band

Cross over B

board

Cross over C

board

Main board

Nat

Washer

Bracket

Cross over B

board

Cross over C board

Band

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Fig.11

Fig.12

Fig.13

Nat

Washer

Bracket

Cross over B board

Cross over C

board

Bass boost B boardLED B board

Bass boost B board

Bracket

LED B board

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(No.MA194)1-7

SECTION 4

ADJUSTMENT

4.1 KS-AX5500 IDOLING CURRENT ADJUSTMENT

The potential display becomes positive or negative depending on selected one TP.

Adjust the voltage regardless of the potential.

Make the value of each VR equal.

Instrument requited

DC power

Multimeter

Connection

Connect the DC power to the body (+B, remote and GND). After three minutes or more, start measurement

(wait until the voltage is stabilized).

Remote GND +B

DC power GND DC power +B

Short-circuit the remote terminal and +B terminal.

Use the thick cord for connection.

Adjustment

Adjustment VR

VR101

VR201

VR301

VR401

Adjusted value

1.5mV

MIN

1.0mV

MAX

2.0mV

TP105orTP106-TP107(GND)

TP205orTP206-TP207(GND)

TP305orTP306-TP307(GND)

TP405orTP406-TP407(GND)

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4.2 KS-AX5500 TEST POINT

C10

C11

C12

C13

C14

C15

C16

C17

C18

C19

C29

C30

C33

C35

C38

C39

C41

C43

C44

C45

C47

C49

R25

C50

C51

C52

C101

C102

C103

C104

C105 C106

C107

C108

C109

C110

C111

C112

C113

C114

C115

C116

C201

C202

C203

C204

C205

C206

C207

C208

C209

C210

C213

C214

C215

C216

C301

C302

C303

C304

C305

C306

C307

C308

C309

C310

C311

C312

C313

C314

C315

C316

C401

C402

C403

C404

C405

C406

C407

C408

C409

C410

C413

C414

C415

C416

C502

C503

C504

C507

C508

C509

C510

C511

C528

C529

C602

C603

C609

C610

C611

C702

C703

C704

C707

C708 C709

C710

C711

C728

C729

C802

C803

C809

C810

C811

C905

C906

C907

C908

C915 C916

C917 C918

CN1

CN2

CN101

CN301

CN504

CN505

CN704

CN705

CN901

CN911

D11

C53

D16

D17

D18

D19

D22

D23

R530

R531

D101

D102

D103

D104

D105

D106

D201

D202

D203

D204

D205

D206

D301

D302

D303

D304

D305

D306

D401

D402

D403

D404

D405

D406

D503

D504

D507

D509

D603

D604

D607

D609

D703

D704

D707

D709

D803

D804

D807

D809

IC1

IC501

IC701

J501

J701

Q10

Q15

Q16

Q19

Q20

W301

Q22

Q23

Q25

Q26

Q27

Q28

Q30

Q31

Q32

Q33 Q34

Q101

Q102

Q103

Q104

Q105

Q106 Q107

Q108

Q109 Q110

Q111 Q112

Q119

Q120

Q201

Q202

Q203

Q204

Q205

Q206

Q207

Q208

Q209

Q210

Q211 Q212

Q219

Q220

Q301

Q302

Q303

Q304

Q305

Q306 Q307

Q308

Q309

Q310

Q311 Q312

Q319

Q320

Q401

Q402

Q403

Q404

Q405

Q406 Q407

Q408

Q409 Q410

Q411 Q412

Q419 Q420

R13

R15

R16

R17

R19

R20

R22

R41

R42

R43

R44

R45

R46

R47

C119

R58

R59

R65

R66

R67

R68

R69

R70

R75

R76

R78 R79

R830

C72

R83

R84

R85

R86

R96

R97

R98

R101

R102

R103

R104

R105

R106

R107

R108 R109

R110

R111

R112

R113

R114

R115

R116

R117

R118

R119

R120

R121

R122

R123

R124

R125

R126 R127

R139

R140

R141

R143

R144

R145

R146

R147

R148

R149

R150

R151

R201

R202

R203

R204

R205

R206

R207

R208

R209

R210

R211

R212

R213

R214

R215

R216

R217

R218

R219

R220

R221

R222

R223

R224

R225

R226 R227

R239

R240

R241

R243

R244

R246 R247

R248

R249

R250

R251

R301

R302

R303

R304

R305

R306

R307

R308

R309

R310

R311

R312

R313

R314

R315

R316

R317

R318

R319

R320

R321

R322

R323

R324

R325

R326

R327

R339

R340

R341

R343

R344

R345

R346

R347

R348

R349

R350

R351

R401

R402

R403

R404

R405

R406

R407

R408

R409

R410

R411

R412

R413

R414

R415

R416

R417

R418

R419

R420

R421

R422

R423

R424

R425

R426

R427

R439

R440

R441

R443

R444

R446

R447

R448

R449

R450

R451

R501

R507

R509

R510

R511

R512

R513

R514

R601

R609

R610

R611

R612

R613

R614

R701

R707

R709

R710

R711

R712

R713

R714

R801

R809

R810

R811

R812

R813

R814

R901

R902

R911

R912

C71

TH1

TH2

R71

TP3

TP5

TP6

TP7

TP8

TP9

TP20 TP22

TP23

TP24

R73

TP26

TP102

TP103

TP202

TP203

TP207

TP302

TP303

TP402

TP403

TP501

TP601

TP701TP801

VR101

VR201

VR301

VR401

C55

C219

Q135

C319C419

BK1

R532

W501

Q136

R183

CN501

R87

C54

R184

R172

R173

W311

R174

C132

R175

Q21

R176

R177

W313

R178 EP101

C62

R26

C64

R179

R180

TP106

R181

TP105

R182

Q137 Q138

W312

W502

D37

R72

IC502

R185

CN502

IC702

R525

R904

R625

TP205

R725

R825

R905

BK2

R186

R74

R526

R48

R49

R50

R51 R52

R53

R60

B23

B24

B21

B22

IC521

B11

B13

C20

C22

C23

C24

C25

Q17

Q18

R626

R726

R826

C513

D27

R80

TP406

W302

C514

TH3

IC721

R721

R722

R821

R822

W591

R621

R622

R521

R522

C613

C614

C70

C713

C714

D110

C813

D211

D210

D111

L301

L401

R365

R465

L101

L201

R165

R265

CN3

C505

C705

C814

C501

C601

C701

R34

R35

R38

R39

R37

R36

R33

R32

C801

R515

R615

R715

R815

W314

C517

TP206

TP306

TP305

TP405

Q130

Q131

Q132

Q133

Q134

R162

R160

R161

R163

R164

R166

R167

C130

R169

C131

D311

D310

D410

D411

C117

C118

C317

C318

D30

D31

R30

R31

R40

TH4

TP407

TP307

TP107

R906

R907

C516

C73

C717

C520

C521

R914

C27

C28

C320

C120

R915

R916

R917

C720

C721

C716

D591

CN591

TP405

TP406

TP407(GND)

TP305

TP307(GND)

TP306

TP105

TP106

TP206

TP205

TP207(GND)

TP107(GND)

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SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

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

Victor Company of Japan, Limited

VPT

Printed in Japan

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