Zenith MC7031 Bedienungsanleitung

SERVICEMANUAL

MODELMC7051

ILLUSTRATED

STEREORECEIVERS

MODELS

MC7031,MC7041,

MC7051

ZENITH

RADIOCORPORATION

PARTS

ANDSERVICEDIVISION

11000SEYMOURAVENUE.FRANKLINPARK.ILLINOIS

60131

HF-46

22.8M-CPC

JUNE,

1980

PRINTED

U.S.A.

$4.00

923-972

To the Service Technician

PRODUCT

SAFETY

SERVICINGGUIDELINES

FORALL

AUDIOAMPLIFIERS

AND

RADIORECEIVERS

CAUTION:

modification

ofany

circuitshould

attempted.

Serviceworkshould

performedonly

after

you

are

thoroughly

familiar

with

all

the

followingsafetychecks

and

servicingguide-

lines.

otherwiseincreases

the

risk

potential

hazards

and

injury

tothe

user.

SAFETYCHECKS

SUBJECT:Fire

ShockHazard

surethat

all

components

are

positioned

such

a way

toavoidpossibility

adjacentcomponentsshorts.This

isespeciallyimportant

thosechassiswhich

are

trans-

ported

toand

from

the

repairshop.

2Alwaysreplace

all

protectivedevicessuch

insulators

andbarriersafterworking

ona

receiver.

3.Check

for

frayedinsulation

wiresincluding

theAC

cord.

Alsocheckacross-the-linecomponents

for

damage

andreplace

necessary.

All

fuses

and

certainresistors

and

capacitorswhich

are

the

flameprooftype(shaded

onthe

schematic

di-

agrams

and

partslists)must

replacedwithexact

Zenithtypes

preventpotentialfirehazard.

5Afterre-assembly

oftheset

alwaysperform

anAC

leak-

agetest

onthe

exposedmetallicparts

ofthe

cabinet

such

asthe

knobs,antennaterminals,

etc.tobe

sure

the

set

safe

operatewithoutdanger

electricalshock.

notusea

lineisolationtransformerduringthistest.

Use

voltmeterhaving5000ohms

per

volt

sen-

sitivity

inthe

followingmanner:Connect

a 1500ohm10

wattresistor,(63-10401-76)paralleled

bya .15mfd,AC

typecapacitor(22-4384)between

knowngoodearth

ground(waterpipe,conduit,

etc.)andthe

exposedmetal-

licparts,

oneata

time.Measure

theAC

voltageacross

thecombination

1500ohm

resistor

and.15mfd.

capac-

itor.Reverse

theAC

plug

onthesetand

repeat

volt-

agemeasurements

for

eachexposedmetallicpart.Volt-

agemeasuredmust

not

exceed

0.75

volts

RMS.

Thiscor-

responds

to0.5

milliamp

AC.Any

valueexceedingthis

limitconstitutes

potentialshockhazard

and

must

correctedimmediately.

goodearthground

such

asthe

water

pipe,

conduit,

etc.

placethisprobe

oneachexposed

metallicpart.

TABLE

CONTENTS

SafetyServicingGuidelinesandTechnicalApplicationsIndexInsideFrontCover

Index

SchematicsandRelatedDrawingsPage

ProductFeaturesPages

2-5

RecordChangerFeaturesPage

TapeUnitFeaturesPage

IntroductionPage

ProductFeaturesPage

GeneralInformationPage

AlignmentProceduresPages

11-15

DisassemblyPages

16-19

Theory

and

ApplicationPages20-22

PartsListsPages24-36

IntegratedCircuitBlockDiagramsPages

38-41

Schematic,RelatedDrawingsandExplodedViewsPages43-60

TECHNICALAPPLICATIONSINDEX

Various

"HF"

seriesservicemanualscontaininformationrelating

solidstatedevicetheory,operation

and

circuitapplications

introducedinto

our

products.

addition,serviceprocedures

are

alsoexplained,

required,

inthe

appropriateservicemanuals.

Suchinformationhasbeenincluded

inthe

followingservicemanuals:

18:

Theory

Diodes(IncludingZenerandSCR),Transistors,(PNP,NPN,Darlington,andJFET).Applications

Chassis29AT24(JFETFM-RF,

Multiplex,ElectronicTouchSwitching),ComplementarySymmetry,Chassis11ZT27(ElectronicFilter).

22:

Theory

JFET,IGFET,MOSFET,Applications

DualGate MOSFETFM-RF,JFETBiplexDetector,Quasi-ComplementarySymmetry.

23:

Applications

ModelC9029/Chassis15WCA10FourChannelDecoder.

26:

Applications

Chassis15WDR51(JFETMeterCircuit,Multiplex

IC,

FourChannelDecoding).

27:

Applications

ModelSD2568SpeakerSwitchingCircuitry.

28:

Applications

ModelD9013WAllegroSpeakerSystem.

29:

Theory— LightEmittingDiodes(LED).Applications

ThreeLightTuning(TargetTuning),Multiplex

IC.

HF29S1:Applications—Snap-offEscutcheon

andOut

FrontChassisRemoval,

"E"

LineModels.

30:

Applications

—

Snap-offEscutcheon

andOut

FrontChassisRemoval,

"F"

LineModels.

HF31:Theory

and

Applications

Chassis12WGR59(CeramicFilters,

IFIC,

QuadratureDetector,InterstationMuting,

PLL

Multiplex

IC,

Audio).

GeneralProductInformation

—

AudioCircuitry(including

TwoonTwo

SpeakerMatrix,AllegroSpeakerSystems),

"G"

LineDisassembly

Procedures.

HF32S2:Applications

FourChannelSoundReproductionInput

Vs.

Output,RepairingPushButtonSwitches,RecordChanger

and

PhonoCartridge

InterChangeability,Chassis12WGR59Accessibility.

32:

Applications

- "H"

LineDisassemblyProcedures, PartNumberIdentification,RecordChanger

and

PhonoCartridgeInter

Changeability,

"H"

LineAllegroSpeakerSystemsandRepairProcedures.

HF33:

Theory

and

Applications

Chassis3WJR52(CeramicFilters,

IFIC'sforAMandFM

QuadratureDetector,

PLL

Multiplex

IC,

Audio).

GeneralProductInformation—AudioCircuitry(includingOutput

IC),

"J"LineDisassemblyProcedures.

HF33S1:Applications—"J"LineAllegroSpeakerSystemRepairProcedures.

34:

Applications—

"K"

LineAllegroSpeakerSystems

and

RepairProcedures.GeneralProductInformation.

39:

Applications

- "K"

LineAllegroSpeakerSystems

and

RepairProcedures.

ACVOLTMETER

INDEX

*REFERTOMASTERINDEXFORUPDATEDINFORMATION

CHASSIS INFORMATION PRIORDATA CHASSIS INFORMATION PRIORDATA

ORMODEL ONPAGE CONTAINEDIN ORMODEL ONPAGE CONTAINEDIN

1WEA10(Z1) -HF

28S1,

29,30 J3000W1 — HF33

1WEA11(Z1) -HF

28S1,

29,30 E9012W(1) -HF

29S1,

1WGR50 -HF31S1.31S2 G9012W1 -HF

31,

31S1

1WJR55 -HF33,33S1 E9014W(1) -HF

29S1,

3WEA10(ZD -HF29,29S2,30 E9014X(1) -HF

29S1,

3WGR50 -HF31.31S1 G9014W -HF31S1

3WHR50 -HF32,32S1 E9018WO) -HF

29S1,

3WJR50,50Z -HF33,

33S1,

34 G9019W -HF31.31S1

3WJR51,51Z -HF33,33S1 E9026W -HF30S1

3WGR52 -HF

31,

31S1 E9029W -HF29S1

3WHR52 -HF32S1 IS4020 -HF35

3WJR52,52Z -HF33.33S1 IS4021 -HF41

3WGR54 -HF

31,

32S1 IS4030 -HF35

3WR10X -

HF40,

47 IS4031 -HF41

3WR11X -HF40.47 IS4040 -HF35

3WR12X -

HF40,

47 IS4041 -HF41

5WER50 -HF28S1,29,29S1,30,30S1 IS4060 — HF36

5WFR50 -HF30,

31S1,

31 IS4061-1 -HF42

5WER51 -HF29,29S1,30,30S1 IS4061-2 -HF43

5WFR51 -HF30.30S1 IS4070 -HF36

5WER52 -HF29S2,30,30S1 IS4071-1 -HF42

5WER52Z1 -HF30,30S1 IS4071-2 -HF43

5WER52Z2 -HF30,30S1 IS4080 -HF36

5WER52Z3 -HF30,30S1 IS4081-1 -HF42

5WER53 -HF29,

29S1,

30 IS4081-2 _ HF43

5WFR53 -HF30,30S1 IS4081-3 _ HF44

6WGR55 -HF

31,

31S1 MC1000 _ HF39

6WHR55 -HF32,32S1 MC1000-11 -HF39

6WGR56 -HF31,31S1 MC1000-12 - -

6WHR56 -HF32,32S1 MC2000 -HF39

6WGR57 -HF

31,

31S1 MC2000-11 -HF39

6WHR57 -HF32.32S1 MC2000-12 - -

6WGR90 -HF31S1 MC3000 -HF39

6WGR91 -HF31S2 MC3000-11 -HF39

8WJR56 -HF33 MC3000-12 - -

8WJR57 -HF33 MC4000 -HF39

12WGR58 -HF

31,

32S1 MC4000-11 -HF39

12WGR59 -HF

31,

31S1 MC4000-12 --

12WHR29 -HF32,32S1 MC6010 -HF37

15WJR29 -HF33,

33S1,

34 MC6020 -HF45

15WEA10 -HF

29S1,

30 MC6060 -HF37

15WFR51 -HF30,30S1 MC6060-1 -HF37S1

15WER55 -HF29,29S1,29S2,30,30S1 MC6065 -HF45

15WFR55 -HF30,30S1 MC7030 -HF38

15WER56 -HF29,29S1,29S2,30 MC7031 8to60 -

15WFR57 -HF30,30S1 MC7040 -HF38

35WFR50 -HF30,

30S1,

32S1 MC7041 8to60 -

G1000W -HF31./31S1 MC7050 -HF38

H1000W,W1,W2,W3 HF32 MC7051 8 to60 -

J1000W1,W2 -HF33 MC9020 -RC28

G2000W -HF

31,

31S1 MC9025 -RC33

G2000W11 -HF31S1 MC9030 -RC29

H2000W,W3 -HF32 MC9035 -RC34

J2000W1,W2 -HF33 MC9040 -RC30

G3000W -HF31,31S1 MC9050 -RC37

G3000W11 -HF31S1 MC9070 -TR41

H3000W,W3 -HF32 MC9070-1 -TR41S1

HF28S1isPartNo.923-734 HF29isPartNo.923-740 HF29S1isPartNo.923-762 HF29S2isPartNo.923-784

HF30isPartNo.923-809 HF30S1isPartNo.923-841 HF31isPartNo.923-848 HF31S1isPartNo.923-857

HF31S2isPartNo.923-864 HF32isPartNo.923-874 HF32S1isPartNo.923-895 HF33isPartNo.923-901

HF33S1isPartNo.923-921 HF34isPartNo.923-927 HF35isPartNo. 923-933 HF36isPartNo.923-934

HF37isPartNo.923-942 HF38isPartNo.923-943 HF39isPartNo 923-944 HF40isPartNo.923-945

HF41isPartNo.923-962 HF42isPartNo.923-966 HF43isPartNo.923-967 HF44isPartNo.923-970

HF45isPartNo. 923-971 HF46isPartNo.923-972 HF47isPartNo 927973 HF48isPartNo.923-974

PRODUCT

FEATURES

SEENOTES

PAGE

•

REFER

PAGE

ONE

INDEX

FOR

MODELS

THISMANUAL

•

CABINET CHASSIS SPEAKERS RECORD

CHANGER OTHERFEATURES

MODEL COLOR STYLE

NOTE

MODEL TYPE PART

NUMBER

IMPED.

(In

Ohms)

QTY.

AND

SIZE

(In

Inches)

PART

NUMBER

NOTE

TAPE

PROVISION

NOTE

SPEAKER

PROVISION

NOTE

MISC.

NOTE

IS4021 Walnut

M,D -

AM/FM/FM

Stereo/Phono/

Tape

Note

D2 --

169-573 8TK-R/P

969-51

A1,

A2,

SPKAB

AUX,DL,H,

HIF,

LD,T,

IS4031 Walnut

M,D —

AM/FM/FM

Stereo/Phono/

Tape

Note

D2 — —

169-573 CASS-R/P

969-52

A1,

A2,

SPKAB

AUX,DL,H,

HIF,

LD,T,

IS4041 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-573 CASS-R/P

969-52

8TK-R/P

969-51

A1,

A2,

SPKAB

AUX,DL,H,

HIF,

LD,T,

IS4061-1 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 8TK-R/P

969-55

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,

T,TO

IS4061-2 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 8TK-R/P

969-51

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,T,TO

IS4071-1 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 CASS-R/P

969-56

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,T,TO

IS4071-2 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 CASS-R/P

969-56

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,

T,TO

IS4081-1 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 CASS-R/P

969-56

8TK-R/P

969-55

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,T,TO

IS4081-2 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 CASS-R/P

969-56

8TK-R/P

969-51

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,T,TO

IS4081-3 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 CASS-R/P

A-8051

8TK-R/P

A-7021

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,T,TO

IS4090 Walnut

M,D

AM/FM/FM

Stereo/Phono/

Tape

Note

169-579 CASS-R/P

969-62

A1,

A2,

A3,

A4,

SPKOAB

AUX,DL,F,

H,HIF,LD,

LOF,

MS,

MU,T,TO

L900P Pecan

C,LL

3WR10X AM/FM/FM

Stereo/Phono/

Tape

49-1153-02

49-1094-01

2-6x9

2-31/2

169-573-01 8TK-P

969-60

A1,

A2,

SPK

AFC,

AUX,

DL,

H,HIF,

T,TO

LR902P Pecan

C,LL

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1153-02

49-1094-01

2-6x9

2-3%

169-573-01 8TK-R/P

969-51

A1,

A2,

SPK

AFC,

AUX,

DL,

H,HIF,

RS,

T,TO

LR902P1 Pecan

C,LL

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1153-02

49-1094-01

2-6x9

2-31/2

169-573-01 8TK-R/P

969-51

A1,

A2,

SPK

AFC,

AUX,

DL,

H,HIF,

RS,T,TO

LR912AE Antique

Oak C,LL

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-581 8TK-R/P

969-51

A1,

A2,

SPK A,AFC,

AUX,DL,H,

HIF,

RS,T,

LR915P Pecan

C,LL

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-581 8TK-R/P

969-51

A1,

A2,

SPK A,AFC,

AUX,DL,H,

HIF,

RS,T,

PRODUCT

FEATURES

SEENOTES

PAGE

•

REFER

PAGE

ONE

INDEX

FOR

MODELS

THISMANUAL

•

CABINET CHASSIS SPEAKERS RECORD

CHANGER OTHERFEATURES

MODEL COLOR STYLE

NOTE

MODEL TYPE PART

NUMBER

IMPED.

(In

Ohms)

QTY.

AND

SIZE

(In

Inches)

PART

NUMBER

NOTE

TAPE

PROVISION

NOTE

SPEAKER

PROVISION

NOTE

MISC.

NOTE

LR915P1 Pecan

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-570 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC

AUX,

DL,H,

HIF,

RS,T,

LR915P2 Pecan

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-570 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC,

AUX,

DL,H,

HIF,

RS,T,

LR916PN Pine

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-581 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC,

AUX,

DL,H,

HIF,

RS,

LR916PN1 Pine

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-570 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC,

AUX,

DL,H,

HIF,

RS,T,

LR917M Pecan

3WR11X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-581 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC,

AUX,

DL,H,

HIF,

RS,T,

LR919P Pecan

3WR12X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-586 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC,

AUX,

DL,H,

HIF,

RS,T,

LR919P1 Pecan

3WR12X AM/FM/FM

Stereo/Phono/

Tape

49-1261-02

49-1251-02

8 2-8

2-3

169-571 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC,

AUX,

DL,H,

HIF,

RS,T,

LR920AE Antique

Oak C,

3WR12X AM/FM/FM

Stereo/Phono/

Tape

49-1217-01

49-1166-01

8 2-10

2-3%

169-586 8TK-R/P

969-51

A1,

A2,

SPK A,

AFC,

AUX,

DL,H,

HIF,

RS,T,

MC1000 Walnut

M,SP — —

49-1277

49-1278

1-61/2

1-2

— — 20

Watt

Handling

Capability

MC1000-11 Walnut

M,SP — —

49-1277

49-1278-02

8 1

-61/2

1-2

— 20

Watt

Handling

Capability

MC1000-12 Walnut

M,SP — —

49-1277

49-1278

1-61/2

1-2

— — 20

Watt

Handling

Capability

MC2000 Walnut

49-1293

49-1261-02

49-1166-01

1-8

1-31/*

Watt

Handling

Capability

MC2000-11 Walnut

49-1293

49-1261-02

49-1166-01

1-8

1-31/2

Watt

Handling

Capability

MC2000-12 Walnut

49-1293

49-1261-02

49-1166-01

1-8

-3%

Watt

Handling

Capability

MC3000 Walnut

— —

49-1290

49-1288-01

1-10

1-31/2

— — 60

Watt

Handling

Capability

MC3000-11 Walnut

— —

49-1290

49-1288-01

1-10

-31/2

— 60

Watt

Handling

Capability

MC3000-12 Walnut

—

49-1290

49-1288-01

1-10

-31/2

— 60

Watt

Handling

Capability

PRODUCT

FEATURES

SEENOTES

PAGE

•

REFER

PAGE

ONE

INDEX

FOR

MODELS

THISMANUAL

•

CABINET CHASSIS SPEAKERS RECORD

CHANGER OTHERFEATURES

MODEL COLOR STYLE

NOTE

MODEL TYPE PART

NUMBER

IMPED.

(In

Ohms)

QTY.

AND

SIZE

(In

Inches)

PART

NUMBER

NOTE

TAPE

PROVISION

NOTE

SPEAKER

PROVISION

NOTE

MISC.

NOTE

MC4000 Walnut

M,SP --

49-1291

49-1289

49-1288-01

5.5

7.0

8.0

1-12

1-5

-31/2

--100

Watt

Handling

Capability

MC4000-11 Walnut

M,SP — —

49-1291

49-1289

49-1288-01

5.5

7.0

8.0

1-12

1-5

1-31/2

— — 100

Watt

Handling

Capability

MC4000-12 Walnut

M,SP — —

49-1291

49-1289

49-1288-01

5.5

7.0

8.0

1-12

1-5

-31/2

— — 100

Watt

Handling

Capability

MC6020 Walnut

AM/FM/FM

Stereo/Tape Note

Note

8TK-R/P

969-54

A1,

A2,

SPKOAB

AFC,

AUX,

DL,

F,H,

HIF,

LD,

LOF,

MS,

MU,T,TO

MC6065 Walnut

AM/FM/FM

Stereo/Tape Note

Note

CASS-R/P

969-59

A1,

A2,

A3,

A4,

SPKOAB

AFC,

AUX,

DL,

F,H,

HIF,

LD,

LOF,

MS,

MU,

T,TO

MC7031 Walnut

AM/FM/FM

Stereo Note

Note

B3 TM

A2,

A3,

SPKOAB

AFC,

AUX,

DE,

DL,F,

H,HIF,LD,

LOF,

MS,

MU,TIO,TM,

TS,

MC7041 Walnut

AM/FM/FM

Stereo Note

Note

B3 TM

A3,

A4,

SPKOAB

AFC,

AUX,

DE,

DL,F,H,

HIF,

LD,LOF,

MS,MU,TIO,

TM,TS,TZ

MC7051 Walnut

AM/FM/FM

Stereo Note

Note

B3 TM

A3,

A4,

SPKOAB

AUX,DE,DL,

F,H,HIF,

LD,

LOF,MS,

MU,

2TIO,

TD,

TM,TS,

MC9020 Walnut

M,D --- - -

169-574

- - -

MC9025 Walnut

M,D - - - - -

169-579

-- -

MC9030 Walnut

M,D --- - -

169-575

---

MC9035 Walnut

M,D -- - --

169-580

-- -

MC9040 Walnut

M,D -----

169-576

---

MC9050 Walnut

M,D -- - - - - - -

MC9070 Walnut

M -1ape -- - -

CASS-R/P

969-58

-H

MC9070-1 Walnut

M -

Tape

----

CASS-R/P

969-63

-H

SL2597P9 Pecan

C,2LL

3WR12X AM/FM/FM

Stereo/Phono/

Tape/Color

Combo

49-1276

49-1234-04

49-1166

2-10

1-5

2-H

169-585 8TK-R/P

969-51

A2,

A3,

A4,

SPK

A,AFC,AUX,

DL,

H,HIF,

T,TO

PRODUCT

FEATURES

NOTES

NOTEA - CABINETSTYLE:

C= Console,D = DustCover,M = Modular,LL- LiftLid,2LL- Two

LiftLids,SP= SpeakerSystem.

NOTED2:"K"and"L"ModelsmayuseeitherMC1000,MC2000,

MC3000orMC40008 ohmAllegroSpeakerSystemsasindicated.(See

SpeakerProvisions).

NOTEB - RECORDCHANGERS

NOTEB1:Provisionforexternalrecordchangerusinga ceramiccartridge.

NOTEB2:Provisionforexternalrecordchangerusinga magnetic

cartridge.

NOTEB3:Provisionforexternalrecordchangerusingeithera ceramic

ormagneticcartridge.

RecordChangershavingalphasuffixes(i.e.169-511A)denotevariations

ofinternalmechanicaland/orelectricalcomponents(refertoRecord

ChangerFeaturescharts)butotherwiseareinterchangeablewithother

alphasuffixandnon-suffixversions.

NOTEC - TAPEINPUTANDOUTPUTPROVISIONS:

FactoryInstalled:8 TK- EightTrackCartridge.

Cass= Cassette,P = Play,R = Record.

TM= TopofSetModelforinstallationwiththedesignatedconsoleor

modularmodels:

ModelMC9070- CassetteTapePlayer/Recorder.

TapeUnitshavingalphasuffixes(ie.169-510A)denotevariationsof

internalmechanicaland/orelectricalcomponents(refertoTapeUnit

Featureschart)butareotherwiseinterchangeablewithotheralpha

suffixandnon-suffixversions.Unitshavingnumeric(ie.169-506O1)

ornumeric/alpha(ie.169-506-01A)suffixesmayhavea oneway

interchangeabilityundersomeconditions(refertoProductFeatures

chart).

NOTED - SPEAKERPROVISIONS:

NOTED1:ModelsE9012series,G1000W,G2000W,W11,G3000W,

W11,

G9012W1,

G9014W,G9019W,H1000Wseries,H2000Wseries,

H3000Wseries,J1000Wseries,J2000WseriesandJ3000Wseriesare

8ohmAllegroSpeakerSystems.AllegroModelsintheE9014and

E9018serieswere16ohmsystems.

A1= ModelMC1000Allegro1000SpeakerSystemmaybeused.

A2= ModelMC2000Allegro2000SpeakerSystemmaybeused.

A3= ModelMC3000Allegro3000SpeakerSystemmaybeused.

A4= ModelMC4000Allegro4000SpeakerSystemmaybeused.

SPK= SwitchtoselectInternal(Main),External(Remote)orBoth

SpeakerSystems.

SPKAB= SwitchtoselectA,B orBothSpeakerSystems.

SPKOAB= SwitchtoselectA,B orBothSpeakerSystemsortoswitch

allSpeakerSystemsoff.

NOTEE - MISCELLANEOUSFEATURES:

A =SpeakerSystemisAllegro.

A1 = SpeakerSystemisAllegro1000.

A2 =SpeakerSystemisAllegro2000.

A3 = SpeakerSystemisAllegro3000.

A4 = SpeakerSystemisAllegro4000.

AFC =AFCDefeatSwitch.

AUX = AuxiliaryinputacceptscertainoptionalRecordChangersor

TapeUnitslistedunderNotesB andC.

DE = DeemphasisSwitch.

DL =DialScaleLight.

F = FlywheelTuning.

H = HeadphoneJack(Stereo).

HIF = HiFilterSwitch.

LD =LoudnessSwitch.

LOF = LoFilterSwitch.

MS = Mono/StereoSwitch.

MU =FMMuteSwitch.

PL =PowerIndicatorLight(otherthanDialScaleLight).

RS =RecordStorage.

T = TuningMeter.

TD = TapeDubbingSwitch.

TIO =TapeInput/Output.

TM = TapeMonitorSwitch.

TO =TapeOutput.

TS =SignalStrengthMeter(AMandFM).

TZ = ZeroCenterTuningMeter(FM).

RECORDCHANGERFEATURES

SEENOTESBELOW

PART

NUMBER

MFG.

CODE

CART-

RIDGE,

STYLUS

NOTE

PRESSURE

INGRAMS

RPM

ADAPTER

NOTE

MODES

(TYPE) SIZE

(TYPE) SPEED

(TYPE) RECORD

STACK

TURN-

TABLE

DIA.

BASE

PLATE

COLOR

TURN-

TABLE

PAD

COLOR

PRES-

SURE

ARM

COLOR

MISC.

(TYPE)

169-570 GAR

6200C 142-199

56-643

0.7D-3.0S

3.0-5.0

A-7545

76-2132

Off,Manual,

Auto

(Slide)

12",

7", 33

7",

10",

(Slide)

Note

5 10

1/2"

Metal Black Black Chrome

and

Black

Cue

(Lever)

169-571 GAR

630S 142-192

56-643

0.7D-3.0S

3.0-5.0

A-7545

76-2132

Off,Manual,

Auto

(Slide)

12", 33

7", 33

7", 45

10", 78

(Slide)

Note

5 10

1/2"

Metal Black Black Chrome

and

Black

Viscous

Cue

(Lever)

Anti-Skate

(Slide)

169-573 BSR

C197 142-197

56-639

0.7D-3.0S

3.5-5.0

S-72648,

A-6616

A-8352

Off,Manual,

Auto

(Slide)

7,10,12

(Slide) 33,45,78

(Slide) Note

11"

Metal Black Black Black Cue

(Lever)

169-573-01 BSR

C197 142-198

56-642

0.7D-3.0S

3.5-5.0

S-72648,

A-6616,

27-628

Off,On,

Auto

(Slide)

7,10,12

(Slide) 33,45,78

(Slide) Note

11"

Metal Black Black Black Cue

(Lever)

169-574 GAR

630S 142-194

56-641

0.6D

3.5-5.0

A-7545

76-2132

Off,Manual,

Auto

(Slide)

12",

7",

7", 45

10",

(Slide)

Note

5 10

1/2"

Metal Black Black Chrome

and

Black

Viscous

Cue

(Lever)

Anti-Skate

(Slide)

169-574-01 GAR

630S 142-189

56-641

0.6D

3.5-5.0

A-7545

76-2132

Off,Manual,

Auto

(Slide)

12",

7",

10",

(Slide)

Note

5 10

1/2"

Metal Black Black Chrome

and

Black

Viscous

Cue

(Lever)

Anti-Skate

(Slide)

169-575 GAR

GT4 142-195

56-641-02

0.4X0.7D

2.5-4.5

27-627

76-2132

Off,Manual,

Auto,

Repeat

(Slide)

N.A.

33,

(Slide) Note

5 11

1/4"

Metal N.A. Black N.A. Viscous

Cue

(Slide)

169-575 GAR

GT4 142-195

56-641-02

0.4X0.7D

2.5-4.5

27-627

76-2132

Off,Manual,

Auto,

Repeat

(Slide)

N.A.

33,

(Slide) Note

(Belt

Drive)

N.A. Black N.A.

Anti-Skate

(Rotary)

Start/Reject

(Button)

169-575-01 GAR

GT4 142-189

56-641

0.6D

2.5-4.5

27-627

76-2132

Off,Manual,

Auto-Repeat

(Slide)

N.A.

33,

(Slide) Note

5 11

1/4"

Metal N.A. Black N.A. Viscous

Cue

(Slide)

169-575-01 GAR

GT4 142-189

56-641

0.6D

2.5-4.5

27-627

76-2132

Off,Manual,

Auto-Repeat

(Slide)

N.A.

33,

(Slide) Note

(Belt

Drive)

N.A. Black N.A.

Anti-Skate

(Rotary)

Start/Reject

(Button)

169-576 GAR

GT25 142-196

56-641-03

0.4X0.7D

1.5-3.0

27-627

76-2132

Off,Manual,

Automatic,

Repeat

(Rotary)

33,

(Rotary) Note

1/4"

Metal Gray Black N.A. Viscous

Cue

(Slide)

169-576 GAR

GT25 142-196

56-641-03

0.4X0.7D

1.5-3.0

27-627

76-2132

Off,Manual,

Automatic,

Repeat

(Rotary)

33,

(Rotary) Note

(Belt

Drive)

Gray Black N.A.

Anti-Skate

(Rotary)

Start/Reject

(Rotary)

169-579 TENVA

MT30 142-200

56-641-04

0.6D

2.0-4.0

76-2132 Program

Off,Manual,

1Through

(Slide)

Play

(Button)

N.A.

33,

(Slide) Note

11"

Aluminum

Metal

Black Black N.A. Damped

Cue

(Lever)

Anti-Skate

(Rotary)

BeltDrive

24PoleMotor

169-580 TENVA

MT60 142-195

56-641-02

0.4X0.7D

2.0-4.0

Program

Off,Manual,

1Through

(Slide)

Play

(Button)

N.A.

33,

(Slide)

Pitch

Control

(Rotary)

Note

11"

Aluminum

Metal

Black Black N.A. Damped

Cue

(Lever)

Anti-Skate

(Rotary)

BeltDrive

ElectronicDrive

AndSpeed

Control

24_PpleMotor

StrobeIndicator

169-581 BSR

C198 142-190

56-643

0.7D-3.0S

3.0-5.0

A-6616

27-628

Off,On.

Auto

7,10,12

(Slide) 33,45,78

(Slide) Note

5 10

1/2"

Plastic Black Black Black Cue

(Lever)

Anti-Skate

(Rotary)

2PoleMotor

169-585 TENVA

MT30 142-201

56-647

0.7DX3.0S

3.0-5.0

Program

Off,Manual,

1Through

(Slide)

Play

(Button)

N.A.

33,

(Slide) Note

11"

Aluminum

Metal

Black Black N.A. Damped

Cue

(Lever)

Anti-Skate

(Rotary)

BeltDrive

24PoleMotor

169-586 BSR

C218 142-202

56-647

0.7D-3.0S

3.0-5.5

27-628 Off,On,

Auto

7,10,12

(Slide) 33,45

(Slide) Note

5 10

1/2"

Plastic Black Black Black Cue

(Lever)

Anti-Skate

(Rotary)

BeltDrive

4PoleMotor

NOTE

1 — All

recordchangershave120VAC60Hzmotors.

NOTE

2 — D =

Diamond,

S =

ManufacturedSapphire.

NOTE

3 —

Stylus

56-641,

hasa 0.6mil

spherical

tip.

56-641-01

isan

optional

2.5milmfg

sapphirestylus

for

playing

78RPM

records.56-641-02

and56-641-03

are

Bi-radialElipticalstylus.

NOTE

4 —

Adapter27-628

isa

disctype

and

76-2132

isa

stubtype.Adapterusedwillvarywithmodel.

NOTE

5 —

Recordchangerswillplay

many

five(flat

and

unwarpedrecords

12-inch,10-inch

7-inch

size.Sizescannot

intermixed.)

NOTE

6—

Recordchangerswillplay

many

assix

(flat

and

unwarpedrecords

12-inch,10-inch

7-inch

size.Sizescannot

intermixed.)

TAPE

UNITFEATURES

SEENOTESBELOW

PARTNO.

NOTEF

MFG.

CODE

8-TRACK/

CASSETTE

CHANNELS ALC/FULL

FEATURE

NOTEA

MOTOR

NOTEB

AUTO

STOP

NOTEC USE

NOTED

MISC.

FEATURES

NOTEE

PARTNO.

NOTEF

MFG.

CODE

8-TRACK/

CASSETTE PLAY RECORD

ALC/FULL

FEATURE

NOTEA

MOTOR

NOTEB

AUTO

STOP

NOTEC USE

NOTED

MISC.

FEATURES

NOTEE

169-50601A AMI/ML

8-Track

2 2 Full DC/M Full C

A2,C1,

FF,I,M,

P1,

169-545 AMI/ML

8-Track

2 2 ALC DC/M Four

R c

A2,

C3,I,R

169-546 AMI/ML

8-Track

2 2 ALC DC/M Four

R/FFA

A2,

C3,FF,I,P2,R

96951 TAN

8-Track

2 2 ALC

Full DC/M FourR,

FourR/FF C,M

A3,

C3,FF,I,P2,

R,RL

96952 TAN Cassette 2 2 ALC DC/E Tape

P/R M

A3,

C4,CR,E,F,I,

P2,

RL,TC

969-54 TAN

8-Track

2 2 Full DC/M FourB

P/R/FF

A3,

C3,FF,I,M,

P2,

R,R L

969-55 TAN 8 Track 2 2 Full DC/M Four

R/FF M

A3,

C3,FF,I,M,

P2,

RL,RP

969-56 TAN Cassette 2 2 Full DC/E Tape

P/R M

A3,

C4,CR,E,F,I,

M,P2,R L,TB,TC,

969-57 TAN Cassette 2 2 Full DC/E Tape

P/R M

A3,

C3,E,F,I,M,

P2,

RL,T,TB,TC,

96958 AM

Cassette 2 2 Full DC/E Tape

All MA

A1,

C1,D,E,I,

M,P2,PRL,RL,

TB3,

TC,TE3

969-59 VOR Cassette 2 2 Full DC/E Tape

P/R M

A3,

C3,CR,D,E,

F,I,M,P2,RL,

T,TB/TE,TC

96960 TAN

8-Track

2 - - DC/M -C

A2,

969-61 VOR Cassette 2 2 Full DC/E Tape

P/R M

A3,

C3,E,F,I,M,

P2,

RL,T,TB,TC,

969-62 AMI Cassette 2 2 Full DC/E Tape

P/R M

A3,

C3,CR,D,E,

F,I,M,P2,RL,

TB/TE,

969-63 AMI Cassette 2 2 Full DC/E Tape

All MA A1

C1,D,E,I,M,

P2,

PRL,RL,TB3,

TC,

TE3

A-7021 TAN

8-Track

2 2 Full DC/M Four

R/FF M

A2,

C3,FF,I,M,

P2,

RL,PP

A-8051 TAN Cassette 2 2 Full DC/E Tape

P/R M

A2,

C4,CR,E,F,I,

M,P2,RL,TB,TC,

NOTES

NOTEA - RECORD

ALC= AutomaticLevelControl

Full= FullFeaturewithRecordLevelControlsandMeters.

NOTEB - MOTOR

E= ElectronicGovernor

M= MechanicalGovernor

ACMotorsrequireconversionkitifusedon50Hz.

NOTEC - AUTOSTOP

Full= Stopsaftereachprogram,fourthprogramorrunscontinously(in

bothPlayandRecordmodes).Selectedbythreepositionslidecontrol.

FourR = StopsafterfourthprograminRecordonly.

FourR/FF= StopsafterfourthprograminRecordandFastForwardonly.

Four

R/FFA

= StopsafterfourthprograminRecordandafterall

programsinFastForward.

FourB

P/R/FF

= StopsafterfourthprograminPlay,RecordandFast

ForwardonlyifAutoStopButtonisdepressed.

TapeP/R= TapetensionsensoratendoftapeinPlayandRecordonly.

TapeAll= StopsatendoftapeinPlay/Record/FastForward/Rewind

modes.

NOTED - USEDIN

C= Console

M= Modular

MA= ModularAccessory

W= WedgeModular

NOTEE - MISC.FEATURES

ParallelBladePowerConnector.

MolexTypePowerConnector.

A3 = HardWirePowerConnector.

BiasFrequencySwitch.

RCATypeAudioConnector.

C2 = SpadeLubAudioConnector.

HardWireAudioConnector.

C4 = MolexTypeAudioConnector.

Cue/Review.

DolbyNoiseReductionSystem.Dolbyisa trademarkofDolby

Laboratories,I nc.

Eject.

InterlockedFastForwardButton.

FastForwardButton(Push-PushType).

InterlockedRecordButton.

M = RecordLevelMeter(Illuminated).

PauseButton(PushIn,SlideLefttoLock).

PauseButton(Push-Push).

PRL

PeakRecordLight.

Q Automatic2/4ChannelSwitching,withmodeindicator.

R = ReadyLightorAutoStopLight.

RecordLight.

RepeatButton.

TapeRunLight.

TB = TapeBiasSwitch(CrO2/Normal).

TB3

TapeBiasSwitch(CrO2/FeCr/Fe3O2)

•

TapeCounter.

TapeEqualizationSwitch(Cr02/Normal).

TE3

TapeEqualizationSwitch(High,Mid,Low).

NOTEF - PARTNUMBERS

169-

Basenumbersidentifyunitswithelectronicswhile969-andA-

basenumbersidentifyunitswithoutelectronics(mechanismonly).

FeatureslistedinNotes"A","C"and"E"for969-andA-basenumbers

includefeatureswhichmayvarywithmodelapplication.

INTRODUCTION

Thisservicemanualcontainsdetailedserviceinformationforcommonamongthethree,

allsectionsofModels

MC7031,

MC7041and

MC7051.

OnthefollowingpagesareFeatureChartsandSpecifications

Illustrationsofthethreemodelscoveredinthisservicemanualofthethreemodels,

appearbelow.Aswillbenotedfromtheillustrations,stylingis

Dieses Handbuch passt für folgende Modelle

Beliebte Stereo-Receiver Handbücher anderer Marken

Marantz

Marantz CINEMA 70S Bedienungsanleitung

Kenwood

Kenwood KMDX92 Bedienungsanleitung

Yamaha

Yamaha RX-830 Bedienungsanleitung

Pioneer

Pioneer AVH-Z7250BT Bedienungsanleitung

Yamaha

Yamaha RX-750 Bedienungsanleitung

Denon

Denon AVR-1311 Bedienungsanleitung

Denon

Denon AVR-S760H Bedienungsanleitung

Denon

Denon AVR-X7200W Bedienungsanleitung

Pioneer

Pioneer SC-LX904 Handbuch

Sony

Sony XAV-1500 Bedienungsanleitung

Radio Shack

Radio Shack DX-399 Bedienungsanleitung

Sony

Sony STR-DE535 - Fm Stereo/fm-am Receiver Bedienungsanleitung

Pioneer

Pioneer SX-1000TA Bedienungsanleitung

Yamaha

Yamaha MusicCast TSR-5B3D Bedienungsanleitung

Sony

Sony STR-DE335 - Fm Stereo/fm-am Receiver Bedienungsanleitung

Sony

Sony STR-DG500 - Multi Channel Av Receiver Bedienungsanleitung

Panasonic

Panasonic AJSD955B - DVCPRO50 STUDIO DECK Bedienungsanleitung

Pioneer

Pioneer SX-838 Bedienungsanleitung