Technics SC-EH760 Manuale utente

AD0004083C3

Tuner/Amplifier

SA-EH760

Colour

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

Areas

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

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

SPECIFICATIONS

1. BeforeRepairs

1. Turnoff thepowersupply. Using a10 , 10 Wresistor, connect

bothendsofpowersupplycapacitors(C701, C703 and C702,

C704) inordertodischargethevoltage.

2. Beforeturning thepowersupplyon, aftercompletion ofrepair,

slowlyapplytheprimaryvoltagebyusing apowersupplyvoltage

controllertomake surethat theconsumedcurrentat 50 HzinNO

SIGNALmodeshouldbeshownbelow.

For (GC) area

Powersupply

voltage AC110 V, 50 Hz AC240 V, 50 Hz

Consumed

current 200-700 mA 100-350 mA

For (GN) area

Powersupply

voltage AC240 V, 50 Hz

Consumed

current 100-350 mA

2. Protection Circuitry

Theprotection circuitrymay have operatedifeitherofthefollowing conditionsisnoticed:

-Nosound isheardwhenthepowerisswitchedON.

-Sound stopsduring aperformance.

Thefunctionsofthiscircuitryistopreventcircuitrydamageif, for example, thepositive and

negative speakerconnection wires areshorted, or ifspeakersystemswithanimpedance less

thantheindicatedratedimpedance ofthisunitareused.

Ifthisoccurs, followtheprocedures outlinedbelow.

1. SwitchOFF thepower.

2. Determinethecause oftheproblemand correct it.

3. SwitchONthepoweronce again.

Note:

Whentheprotection circuitryfunctions, theunitwill notoperate

unless thepowerisfirst switchedOFF and thenONagain.

3. Accessories

-ACpowersupplycordfor(GC)area / (RJA0019-X)...........................1

pc.

-ACpowersupplycordfor(GN)area / (RJA0035-X)...........................1

pc.

-AMloop antennaset / (RSA0022-J)...........................1pc.

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

-Speakercords/ (REE0393)..............................2pcs. /

(REE0984)..............................2pcs. / (REE0985)..............................2

pcs.

-Remote control transmitter/ (RAK-EHA28WH)..................1pc.

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

Note:These areavailableon sales route.

-Powerplug adaptorfor(GC)area only/ (SJP5213-

2)...........................1pc.

4. Location of Controls

5. Operation Checks and Component Replacement

Procedures

-Thissection describes procedures forchecking theoperation of

themajorprintedcircuitboardsand replacing themain

components.

-Forreassemblyafteroperation checks orreplacement, reverse the

respectiveprocedures. Special reassemblyprocedures are

describedonlywhenrequired.

5.1. Checking fortheACINP.C.B.

-Check theACINP.C.B. as shownbelow.

5.2. Checking fortheoperation P.C.B.

-Follow the(Step1) -(Step3) ofitem5.1.

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

5.3. Checking forthemainP.C.B.

-Follow the(Step1) -(Step3) ofitem5.1.

-Follow the(Step1) -(Step7) ofitem5.2.

-Check themainP.C.B. as shownbelow.

5.4. Replacementfortheregulatortransistor

-Follow the(Step1) -(Step3) ofitem5.1.

5.5. ReplacementforthepowerIC

-Follow the(Step1) -(Step3) ofitem5.1.

-Follow the(Step1) -(Step7) ofitem5.2.

-Follow the(Step1) -(Step12) ofitem5.3.

6. ToSupplyPowerSource

ThisunitSA-EH760 isdesignedtooperateon powersuppliedform system connected. / For

system connections, referto Fig. 6-1.

Fig. 6-1.

WhentheunitSA-EH760 has totestand service alone, use thefollowing method tosupplypower

source.

1. Shortthesection betweenW902APin3and C740 (-) (GND). Refer

to Fig. 6-2.

2. Connect thisunittoanACpowersupplycord. / (Thisunitcometo

stand-bymode.)

3. TurntheunitON.

Fig. 6-2.

Altri manuali per SC-EH760

Questo manuale è adatto per i seguenti modelli

Indice

Altri manuali Technics Impianto stereo

Technics

Technics OTTAVA SC-C500 Manuale utente

Technics

Technics SC-CH510 Manuale utente

Technics

Technics SD-S9325 Manuale utente

Technics

Technics SC-HD510 Manuale utente

Technics

Technics SC-DV290 Manuale utente

Technics

Technics SC-EH750 Manuale utente

Technics

Technics SC-C70 Manuale utente

Technics

Technics SC-HD510 Manuale utente

Technics

Technics SC-S3050 Manuale utente

Technics

Technics SC-S2350 Manuale utente

Technics

Technics SC-CH505 Manuale utente

Technics

Technics SD-S7225 Manuale utente

Technics

Technics SL-EH760 Manuale utente

Technics

Technics SC-CH510 Manuale utente

Technics

Technics SC-C70 Manuale utente

Technics

Technics SL-HD560E Manuale utente

Technics

Technics SC-CH900 Manuale utente

Technics

Technics SC-CA1080 Manuale utente

Technics

Technics SC-CH730 Manuale utente

Technics

Technics SC-S345 Manuale utente

Technics

Technics SC-CH610 Manuale utente

Technics

Technics SC-S2050 Guida rapida

Technics

Technics SC-CH570 Manuale utente

Technics

Technics SC-S345 Manuale utente

Manuali Impianto stereo popolari di altre marche

LG CM3330B Manuale utente

Sony

Sony SS-CEP50 Manuale utente

Cetacea Sound

Cetacea Sound CVS-II Manuale utente

Aiwa

Aiwa XR-H66MD Manuale utente

Denon

Denon UCD-250 Manuale utente

Sanyo

Sanyo DC-MX41i Manuale utente

Sharp

Sharp CD-ES600V Manuale utente

Exibel

Exibel BDX600-UK Manuale utente

Sanyo

Sanyo DC-F320 Manuale utente

Philips

Philips FWM583X Manuale utente

Sharp

Sharp CD-C462 Manuale utente

Onkyo

Onkyo CBX 300 - CD / MP3 Clock Radio Manuale utente

Aiwa

Aiwa XR-EM70 Manuale utente

Cyrus

Cyrus Lyric Manuale utente

Philips

Philips MCM159/98 Manuale utente

Philips/Magnavox

Philips/Magnavox Magnavox FW 62C Manuale utente

RCA

RCA RS3965SB Manuale utente

Sharp

Sharp XL-UH240 Manuale utente