Technics SA-EH770 User manual

Other manuals for SA-EH770

1

Table of contents

Other Technics Amplifier manuals

Technics

Technics SA-EH560 User manual

Technics

Technics SU-X977 User manual

Technics

Technics SU-A700MK2 User manual

Technics

Technics SU-V36 User manual

Technics

Technics SE-HD501 User manual

Technics

Technics SECA-1060 User manual

Technics

Technics SU-C700 User manual

Technics

Technics SE-CA1080 User manual

Technics

Technics SU-V4X User manual

Technics

Technics se-ch730 User manual

Technics

Technics SU-V8 User manual

Technics

Technics SU-8080 User manual

Technics

Technics SU-X502 User manual

Technics

Technics SU-X902 User manual

Technics

Technics SU-X520D User manual

Technics

Technics SU-Z15 - SERVICE User manual

Technics

Technics SECH-515-A User manual

Technics

Technics SU-VX920 - SERVICE User manual

Technics

Technics SE-9600 User manual

Technics

Technics SE-CH530 User manual

Technics

Technics SU-V500M2 User manual

Technics

Technics SUC-3000 Building instructions

Technics

Technics SUV-300 User manual

Technics

Technics SE-HD81 User manual

Popular Amplifier manuals by other brands

ASTRO

ASTRO HVO V40 P operating manual

Marantz

Marantz SUPERSCOPE BLA-545 Service data

NAD

NAD CI980 Quick setup guide

Harman Kardon

Harman Kardon HK6300 instruction manual

NAD

NAD T975 owner's manual

McIntosh

McIntosh MA6850 Brochure & specs

Electro-Harmonix

Electro-Harmonix ENGLISH MUFF’N manual

Viatron

Viatron Autrix Technical manual

GME

GME GA9800 instruction manual

Atlas

Atlas CP700 Specification sheet

Roland

Roland KC-1000 owner's manual

Pyle

Pyle PFMRA350BW user manual

Advantage

Advantage S-250 manual

IRT Electronics

IRT Electronics DVA-3007 manual

Dimavery

Dimavery BA-100 Series user manual

Sony

Sony XM-S400D operating instructions

Schertler

Schertler ROY X quick guide

Phonic

Phonic XP 3000 Service manual

AD0104055C3

Tuner/Amplifier

SA-EH770

Colour

(S)...................SilverType

Areas

(GC).................Asia, LatinAmerica, MiddleNearEast and Africa.

(GN).................Oceania.

SPECIFICATIONS

1

1

1. BeforeRepairs

1. Turn off thepowersupply. Using a10 , 10 Wresistor, connect bothendsof

powersupplycapacitors(C701, C703 and C702, C704) inordertodischargethe

voltage.

2

2. Beforeturning thepowersupplyon, aftercompletion ofrepair, slowlyapplythe

primaryvoltagebyusing apowersupplyvoltagecontrollertomake surethat the

consumedcurrentat 50 HzinNOSIGNALmodeshouldbeshownbelowwith

respecttosupplyvoltage110/240 V.

Powersupply

voltage AC110 V AC240 V

Consumedcurrent

50 Hz 200 ~700

mA 100 ~350

mA

2. Protection Circuitry

Theprotection circuitrymay have operatedifeitherofthefollowing conditionsis

noticed:

- Nosound isheard whenthepowerisswitchedON.

- Sound stopsduring aperformance.

Thefunctionsofthiscircuitryistopreventcircuitrydamageif, for example, the

positive and negative speakerconnection wires areshorted, or ifspeakersystems

withanimpedance less thantheindicatedratedimpedance ofthisunitareused.

Ifthisoccurs, followtheprocedures outlinedbelow.

1. SwitchOFF thepower.

2. Determinethecause oftheproblemand correct it.

3. SwitchONthepoweronce again.

Note:

Whentheprotection circuitryfunctions, theunitwill notoperate unless thepower

isfirst switchedOFF and thenONagain.

3. Accessories

- AC powersupplycord for (GC) area

(RJA0019-1X)................................1pc.

3

- AC powersupplycord for (GN) area

(RJA0035-X)..................................1pc.

- AMloop antennaset

(RSA0022-L)..................................1pc.

- FMindoor antenna

(RSA0006-J)..................................1pc.

4

- Speakercords

(REE0853).....................................2pcs.

(REE1057).....................................2pcs.

- Remote control transmitter

(EUR7702060)..............................1pc.

- Remote control batteries

(R6/LR6, “AA”, UM-3)....................2pcs.

Note:These areavailableon sales route.

5

- Powerplug adaptor for (GC) area only

(SJP5213-2)..................................1pc.

4. Location of Controls

5. Operation Checks and Component Replacement

Procedures

Note:

Thecontents ofthissection describes for Europe. Soplease use thissection as a

reference.

- Thissection describes procedures for checking theoperation ofthemajor

printedcircuitboardsand replacing themaincomponents.

6

- For reassemblyafteroperation checks or replacement, reverse therespective

procedures. Special reassemblyprocedures aredescribedonlywhenrequired.

5.1. Checking fortheACINP.C.B.

- Check theAC INP.C.B. as shownbelow.

7

5.2. Checking fortheoperation P.C.B.

- Followthe(Step1) -(Step3) ofitem5.1.

8

9

- Check theoperation P.C.B. as shownbelow.

10