Kenwood VR-7080-A, VR-7070-A Service Manual

AUDIO-VIDEO SURROUND RECEIVER

THX SPEAKER EQ

ACTIVE EQ

DSP

STEREO

INPUT MODE

DIMMER

SOUND

TONE

SETUP

BAND AUTO

MEMORY

MULTI CONTROL LISTEN MODE

TUNER

MD/TAPE

VIDEO 3VIDEO 2VIDEO 1

PHONOCD/DVD

THX

DTS

CS II

DOLBY DIGITAL

SPEAKER EQ

ACTIVE EQ

A SPEAKERS B

PHONES

DOWN

MUTE

AV AUX

S VIDEO

VIDEO

L-AUDIO-R

UP

VOLUME CONTROL

STANDBY

POWER

ON/STANDBY

DVD/6CH

++--

SPEAKERS(8-16)

SPEAKERS(8-16)

PRE OUT

FRONT A

SURROUND

SURROUND BACK/

SUBWOOFER

FRONT B

CENTER

FRONT B

-

+

PHONO

CD/DVD

MD/TAPE

REC OUT

VIDEO 1

PLAY IN PLAY IN

VIDEO 2

VIDEO 3

PLAY IN

DVD/6CH.INPUT

FRONT

SURROUND

COAXIALSYSTEM CONTROL

OPTICAL

CD/DVD

OPTICAL
VIDEO 3

OPTICAL

CD/DVD

DIGITAL IN DIGITAL OUT

IN

VIDEO

S VIDEO

IN

VIDEO

DVD/6CH

VIDEO 2

VIDEO
3
IN

DVD
IN

IN

DVD

ROOM B FRONT

CENTER

SURROUND

IR
RECEIVER
IN

IR
REPEATER
OUT

SURROUND
BACK

SUB
WOOFER

MONITOR

OUT

ROOM B

OUT

SUB WOOFER

IN IN REC OUT PLAY IN

PLAY INPLAY INPLAY INREC OUT

CENTER

OUT

IN

VIDEO

VIDEO

AC OUTLETS

150W 1.25A MAX.

SWITCHED TOTAL

WHITE GREEN

RED

L

R

Y CB Y

Y CB Y

-

+

BLUE PURPLE

GREY

L

R

L

R

COMPONENT VIDEO

MONITOR OUT

FM

75

GND

AM

ANTENNA

GND

70%

VR-7070A/7080A

SERVICE MANUAL

© 2003-8 PRINTED IN KOREA
B51-5875-00 (K/K) 1362

Note:

A different information will be available from this service manual. Pls refer to original service manual(B51-5843-00), too.

Tuner ass'y
(W02-2974-15)

Pin jack
(E63-1293-05)x2

Panel
(A60-2336-02)

Miniature phone jack
(E11-0293-05)

Pin jack
(E63-1080-05)

Knob ass'y
(K29-8137-03)

Sub panel ass'y
(A22-1874-01)

Optical receiving module
(W02-2731-05)

Oscillating module
(W02-2732-05)

Cylindrical receptacle
(E56-0040-05)x3

Front glass *
(B10-)

Dressing panel
(A21-3983-12)

Knob
(K29-8272-04)

Pin jack
(E63-1315-05)

Knob ass'y
(K29-8137-03)

Miniature phone jack
(E11-0389-05)

Pin jack
(E63-1316-05)

Knob
(K29-8268-04)

Miniature phone jack
(E11-0291-05)

AC power cord
(E30-2941-05)

Pin jack
(E63-1317-05)x2

Pin jack
(E63-1317-05)x2

Metallic cabinet
(A01-3894-01)

* Refer to parts list on page 6.

Pin jack
(E63-1247-05)

Pin jack
(E63-1313-05)

Pin jack
(E63-1246-08)

Screw terminal board
(E70-0150-05)x2

Lock terminal board
(E70-0160-05)

Pin jack
(E63-1248-05)

AC outlet
(E03-0148-05)

AC power cord bushing
(J42-0349-05)

MODEL

PARTS # BATTERY COVER

VR-7070A K7 A70-1620-05 A09-1274-08

VR-7070A P7 A70-1620-05 A09-1274-08

VR-7080A K8 A70-1619-05 A09-1275-08

VR-7080A P8 A70-1619-05 A09-1275-08

9

ABBRI.

Resetting the Microcomputer

The microcomputer may malfunction (unit cannot be operated, or
shows an erroneous display) if the power cord is unplugged while
the power is ON, or due to some other external factor. If this
happens, execute the following procedure to reset the
microcomputer and return the unit to its normal operating
condition.

Unplug the power cord from the wall outlet, then plug it
back in while holding down the POWER ON/STANDBY
key.

• Please note that resetting the microcomputer will clear the contents

of the memory and returns the unit to the state it was in when it left
the factory.

Memory back up function

Please note that the following items will be deleted from the unit's
memory if the power cord is disconnected from the AC outlet for
approximately 1 day.

• Power mode.

• Input selector settings.

• Picture output.

• Speaker ON/OFF.

• Volume level.

• BASS, TREBLE, INPUT level.

• TONE ON/OFF.

• LOUDNESS ON/OFF.

• Dimmer level.

• MD/TAPE settings.

• Listen mode setting.

• Speaker settings.

• SW RE-MIX ON/OFF.

• Distance setting.

• Bass peak level.

• Input mode setting.

• M idnight mode setting.

• PRO LOGIC II mode setting.

• CS II mode setting.

• Broadcast band.

• Frequency setting.

• Preset stations.

• Tuning mode.

• THX mode.

• DSP mode.

• ACTIVE EQ mode.

• SPEAKER EQ mode.

FM indoor antenna (1)
(T90-0905-05)

AM loop antenna (1)
(T90-0893-05)

RF remote antenna (1)
Refer to the table on this page below.

Batteries (R6/AA) (2)

VR-7070A/7080A

VR-7070 B51-5843-00 X09-6760-10 X25-6490-14
VR-7070A - X09-6830-10 X25-6620-10
VR-7080 B51-5843-00 X09-6760-10 X25-6490-14

VR-7080A - X09-6830-10 X25-6620-10

Change point;

R97,98,147,148,197,198, VR1-

6,Q11-14,31-34,51-54, D23

X08-3130-12 X14-7630-10

Note:

A different information will be available from this service manual. Pls refer to original service manual(B51-5843-00), too.

ACCESSORIES / CAUTIONS

Accessories

REMOTE CONTROL vs MODEL

DIFFERENT POINT

Model Service Manual Surround Display Sub

Audio

Cautions

2

1

W52

W53

C215

W54

C216

C127

C128

C129

C101

W8

C102

C103

C104

C105

C106

C107

C108

C109

C110

C111

C112

C113

C114

4

1

1

89

16

C115

C116

C117

C118

C119

C120

C121

C124

C123

C122

C201

C202

7

1

I

G
O

C203

R218

C205

C206

C207

C208

C209

C210

C211

C212

C213

C214

L201

L202

R101

R102

R103

R104

R105

R106

R107

R108

R109

R110

R111

R112

R113

R201

R202

R203

R204

R205

R206

R207

R208

R209

R210

R211

R212

R213

R214

R215

R216

R217

W17

W10

R114

W18

W13

W11

W9

R120

C133

W1

W2

W5

W12

W15

W4

W6

W3

1

1

7

8

14

7

14

8

W14

C134

W16

W19

W68

W42

W20

C135

C136

C130

C131

C132

R121

R122

C137

C138

C139

R431

R337

R336

R334

R333

R328

R327

R325 R321

C312

C310

C317

C315

C302

1

2

W23W24

C307

C308

R338

C305

R335

C306 C303

W22

W21

C304

C301

R331

W25

R332

C438

C313

C311

W41

R349

R339

W30

R340

C309

C457

R461

R507

R457

R463

C451

SWch

W31

R356

R308

R317

R307

R318

R357

R350

R315
R305

R326

R316

R347

R348

C435

C439

R330

C433

R358

R310

R455

R329

R320

R319

R309

R355

R352

C434

C440

R360

R359

R351

C436

R306

R313
R303

R323

R353

R345

R362

R324

R314

R311
R301

R346

R354

R341

R343

R423

C429

R417

Cch

R445

R505

C445

R405

W47

SBch

R418

R424

C430

R406

C412

C446

R506

C452

R453

R459

C453

W38

R462

1

45

8

1

45

8

1

45

8

1

45

8

W51

C449

C458

R456

SBch

W37

R458

R454

C454

W67

R460

R464

W39

R411

C450

C411

W35

R439

W49

R440

C406

C405

R412

C426

R502

R414

R420

C316

4

1

19

1

18

2

R442

C402

W36

W44

R421

R302

W26

R322

R312

R342

R344

SLch

R432

R433

C431

R430

SRch

C437

R428

W66

W40

C409

R503

C427

R415

R446

R403

C410

R404

R422

C428

R416

C403

C444

R444

R504

R410

FLch

FRch

R427

R426

R425

R413

R419

W28

W32

C432

C407

C425

R501

W34

R401

R441

C441

R407

C442

C401

C408

R402

R408

R409

R443

R437

C443

W63

W64

W61

W43

W46

R438

C404

C459

R448

C419

R449

W58

W60

C448

R435

W55

W57

W56

C447

R447

R450

W59

C420

R436

R451

W62

W65

W33

W29

W27

R452

W50

W45

W48

R434

B

BE

EB

E

BE

EB

EB

EB

EB

EB

EB

EB

EB

EB

EB

41

EB

EB

EB

EB

EB

EB

BE

B

E

BE

BE

BE

BE

BE

BE

BE

BE

BE

E

B

BE

BE

B

E

D206

CN202

D205

D201

D202

D203

D204

J102

P201

Q201

Q202

Q203

Q204

J101

CN101

CN201

CN304

J303

J302

J301

CN302

Q302

Q307

Q317

Q309

WH2

Q316

Q308

Q318

Q315

Q305

Q319

Q310

Q320

Q313

Q303

Q306

Q304

Q301

Q314

Q311

Q411

Q407

Q412

Q408

CN303

Q403

Q312

WH1

Q402

D401

Q401

Q404

Q406

Q405

Q409

WH1

D402

CN301

WH2

J202

J201

IC101

IC102

IC201

IC202

IC403

IC404

IC402

IC401

(J70-1704-02)

X25-6620-10 A/2

X25 B/2

IR REPEATERIR IN

CrCbY

MONITOR OUTDVD IN

YCbCr

VIDEO3 IN

COMPONENT VIDEO

SUB WOOFER

SUB WOOFER

CENTER

LR

SURROUND BACK/

BACK

SURROUND

SURROUND

SURROUND FRONT ROOM B

SPEAKERS

PRE OUT

2

3

UWYVX

PC BOARD

4

5

6

7

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

3