Decca-RP205-tt-维修拆解说明书手册.pdf

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DECCAModelRP205

GeneralDescription;Two-valvye，three-stagerecordreproducerwith

push-pujloutputstage，RecordchangerunitGarrardAT5withDecca

了Deramheadwhichissuitableformonoandstereomicrogrooyerecordings，

A.C.mains，200-259volts，5ocfs.，5owatts，Lowimpedancetapeoutput

socketforusewithtaperecorder,andstereooutputsocketforusewithDecca

ModelSC2zoostereoconversioninit.

Vatves:(Vi)6BR8;(Vz)ELL8o;HT.bridgerectifierFC442.、

StylusReplacement:;Themicrogroovediamondstylustracksat4-5

gcammesandgivesnegligiblerecordwear，Sinceadiamondisnot3

permanentneedle，itspouldbecheckedperiodicalyforwear;groove

jumpinganddistortioninupperfrequenciesaresignsthatthestylusis

reachingtheendofitsusefuljifc。Oldstylusisremovedbyrunningfinger

downfrontofpick-upheadtoeasestylusbaroutofitsslot，Stylusbaris

thengraspedbetweenfngerandthumb,pulledforwardandfreedfromrear

locationhole。Newstylusbaristhenheldgentlybetweenfingerandpegis

insertedintohole，Siotshouldthengripstylussuffcientlytohold让in

PositionwhilefingersarereImnovedinordertopushfrontofstylusgenty

backwardsuntilstytuscollarlocatesgentlyagainstnoseofstylusslot，Stylus

baristouchedsothatstylussitsrightinslot，区stylusdoesnotsitsquarely

sothatdiamondshankisvertical，itisinadvisabletotwistbarintobetter

position;insteadtemoveitandre-setitintoposition，Atnotimeshould

thestylusbegrippedfrmly,handledwithtweezersorrolledbetweenfingers，

Shouidownerwishtoplay78rp,murecordsa78rp-m，Deramcarttidge

(sapphireGreencoding)isavailablefromDeccaSparesDepartment,

Notes:Indicatorijamp6.5-volt,o3-amp，Fuses再.下.5oomA.;Mains

2-amp。VRrlinear,VR2andVR31l0g.potentiometers.

Tay-ourDiaGaa一DeccaMongrRPzos

DECCA