Marantz 2230 Owners Manual

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Marantz 2230 Owners Manual

Extracted text from Marantz 2230 Owners Manual (Ocr-read)


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----------- --_~® Model 2230 Stereop-honic Receiver MARANTZ CO.,INC.20525 NORDHOFF STREET,CHATSWORTH, CALIFORNIA91311 A WHOLLY-OWNED SUBSIDIARYOFSUPERSCOPE INC.,CHATSWORTH, CALIFORNIA91311

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TABLEOFCONTENTS Preparation forUse Rear Panel Connections Phono Tape In Tape Out Auxiliary Quadradial Main In and PreOut Loundspeaker Systems FM Antenna Antenna Attenuator AM Antenna Connection toAC Outlet Convenience Outlet Simplified OperatingProcedure Tuning Meters Tuning Mono Switch Tape Monitor Switch Loudness Switch Low Filter Switch Hi Filter Switch Muting SwitchandLevel Control 2 2 2 2 3 3 3 3 4 5 5 5 5 5 6 6 6 6 6 6 6 6 Muting Circuit AM Tuner Selector Switch Tape Signals Tape Monitor Switch Phono Signals Mono Functions Control Circuits Balance Control Volume Control Tone Amplifier Hi-Low Filters General Serv iceNote 12 12 12 13 13 13 13 13 13 13 13 13 13 14 Main. Controls andSwitches Selector Switch Balance Control Volume Control Bass MidandTreble Controls Main-Spkr-Remote Switch Front PanelJacks Dubbing Out Dubbing In Stereophones Some Suggestion onUsing TapeRecorders with Your Model 2230 Recording andPlayback Recording Playback Making TwoRecordings Simultaneously Recording aLong-Duration Program Copying andEditing Converting YourStereo System to 4- channel Technical Description General Functional Description Front End I F Stages Limiter FM Streo Demodulator 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 9 9 11 11 11 11 12 12 12 liST OFIllUSTRATIONS 1.Rear Panel Connection Facilitiesand Adjustments 2 2. Loudspeaker SystemConnections 3 3. FM/AMAntenna Connection 4 4. AMFerrite-rod Antenna 5 5. Front PanelControls andJacks 7 6. Stereophone Plug 8 7. Arrangement ofTwo Tape Recorder 9 8. Connection Diagram 10 9. Functional BlockDiagram 11 10. Pack ingInstructions 14

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LEFTCHANNEL COMMON RIGHT CHANNEL Figure6.Stereophone Plug STEREOPHONES This jackaccepts thestandard 3-conductor phone plug used onstandard stereoheadphones (see Figure 6).Itisinternally connected tothe power ampl ifier section through isolation resistorsto provide adequate soundlevelwithpopular low impedance headphones aswell aswith high impedance ones.Twoormore setsofheadphones may beused withtheaidof"Y" connectors. The headphone jackoutput isnot affected bythe MAl N-SPKR-R EMOTEswitches. SOME SUGGESTIONS ONUSING TAPE RECORDERS WITHYOUR MODEL 2230 There areseveral waystoconnect andoperate tape recorders withyour receiver. Toavoid confusion in the following discussion, referenceto"tape monitoring" assumesthattherecorder isequipped with separate recordandplayback headsand separate recordandplayback preamplifiers. To further simplify thisdiscussion, atape recorder normally connected tothe rear panel facilitieswill be referred toasthe "main" recorder. Aseparate recorder normally connected tothe front panel jacks willbereferred toasthe "external" recorder. This general arrangement isillustrated inFigure 7. RECORDING ANDPLAYBACK The simplest systeminvolves onlyoneta.pe recorder, whoseinputsareconnected tothe TAPE OUT jacks (ontherear panel) andwhose playback outputs areconnected tothe TAPE INjacks. An equally simplearrangement usingthefront panel facilities involvesconnecting theline inputs tothe dubbing OUTjackandtheplayback outputstothe dubbing INjack. RECORDING To make arecording, setthe selector switchtothe desired program sourceandputtherecorder into the "record" modeofoperation. WiththeTAPE MONITOR pushswitchinthe "out" position, the original program sourcewillbeheard. Bydepres­ sing theTAPE MONITOR pushswitch (monitor), the "results" ofthe recording whileitisin progress, willbeheard. Aword ofcaution: With the tape recorder inthe record mode,becareful not toplace theselector switchinthe "TAPE" position whentheTAPE MONITOR pushswitchis "out." Doingthisfeeds therecorder's output signals backtoits input terminals, establishing a reverberating loop.Ifthe recorder's playbacklevel happens tobeset higher thanitsrecord level,the resulting echoor"howl" willrapidly increase in volume level.Noharm willbedone tothe recorder or the receiver, buttheaudible effectfromthe loudspeakers canbeannoying. PLAYBACK To listen toatape already recorded, putthe recorder inthe playback modeofoperation and turn theselector switchto"TAPE". Whenplaying tape onanexternal recorder, therecorder's playback outputsshouldbeconnected tothe __ dubbing INjack onthe front panel. Whenplaying a tape onthe main recorder, m~kesurenot~ing is plugged intothedubbing INJack,.othe.rwlse the main recorder's playbackoutputsWillbeInternally disconnected inthe receiver. MAKING TWORECORDINGS SIMULTANEOUSLY Th iscan bedone byconnecting twotape recorders to the receiver, asshown inFigure 7.To monitor the main recorder, pulltheplug outofthe dubbing IN jack anddepress theTAPE MONITOR push­ switch. RECORDING ALONG-DURATION PROGRAM With twotape recorders connected tothe Model 2230 asshown inFigure 7,acontinuous recording can bemade without losingpartsofthe program during reelchanges. Forexample, withtheselector switch settothe desired program source,andthe TAPE MONITOR pushswitch inthe "out" po­ sition, starttherecording onthe main recorder, then prepare theexternal recorder tobegin record­ ing before themain recorder isabout torun out of tape. Assoon asthe external recorder isstarted, ample timewillbeavailable toreload themain recorder inpreparation forfurther recording. This process canberepeated indefinitely withboth 8