Marantz 4300 Owners Manual

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I TABLE OF CONTENTS ExternalDecorder Connection 13 I TapeRecording 13 Power Connections 13 Connecting the 4300 2 AC Protector Fuse 13 I Source Device 4 Remote Speakers 4 Basic Dolby Process I SpeakerPhasing 5 Speaker Placement 5 DolbyCalibration 14 Procedure for Playback Calibration 14 Front Panel Features 7 Procedure for Record Calibration 15 I ModeSwitch 7 Use of theDolby System onFM Dimension 8Broadcasts 16 SO Decoder 8 FM De-EmphasisSwitch 16 I BalanceControls 8Explanation of the Dolby Mode Chart 16 Selector Switch 8 Bass, MidandTreble Controls 8Technical Description 18 I Mon itor Switch 8General 18 Main andRemote SpkrSwitches 9 Power Switch 9Functional Description 18 I FrontandRear Phones Jacks 9 Front End 18 Loudness Switch 9IF Stages 18 Low Filter Switch 9 Limiter 18 I Hi FilterSwitch 9FM Stereo Demodulator 18 Meters 9Muting Circuit 18 Tuning 9 AM Tuner18 I FM MutingSwitch 10Phono Amplifiers 19 Volume 10Selector Switch 19 Dolby Switch 10 Monitor Switch 19 Record Level (Ll (R) 10Tone Control 19 I Play Cal. (L)(R) 10Power Amplifier 19 400Hz ToneSwitch 10Driver Stage 19 I Rear Panel Features 11 General Requirements 19 Phono Jacks 11 Installation of Walnut Cabinet 20 CD-4/AUX Jacks 11 ServiceNotes 20 I Tape Monitor Inand Tape Monitor OutJacks 11 FM Antenna Terminals 11 I AM Antenna Terminal 11 FMOuadradial Output Jack 12 FM De-EmphasisSwitch 12 I DolbyFMPreset LevelControls 12 Muting Level Control 12 Power ModeSwitch 12 Pre Out, Main InJacks 12 Connecting an External Amplifier for Rear Channels 12 Connecting an External Amplifier for Front Channels 12 Chassis Ground BindingPost 12 Main andRemote Speakers 12 Connection to AC Outlet 13 AC Convenience Outlets 13 Remote Control 13

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LIST OF ILLUSTRATIONS 1. Rear Panel Connection Facilities andAdjustments 2 2. LoudspeakerSystemConnections 3 3. ConnectionDiagram 4 4. SpeakerPlacement 6 5. MonoModeSound Dispersion 7 6. 2-channelModeSound Dispersion 7 7. DiscreteModeSound Dispersion 7 8. Vari-MatrixModeSound Dispersion 7 9. Front Panel Controls and Jacks8 10. Stereophone Plug 9 11. F M/ AMAntenna Connections 11 12. AMFerrite-rod Antenna 11 13. Quick-Connect SpeakerTerminal 13 14. BlockDiagram 17 15. Packing Instructions 20The FM multiplex circuitry includes a phase lockedloop,Stereo-Monaural Automatic switch­ ing circuit, stereoindicator circuit andabuffer amplifier to obtain output power at low im­ pedance. Low pass filters for 19KHz and38KHz rejection are incorporated. Moreover,theModel 4300 unit has a muting circuit that permits pleas­ ant FM broadcast receptionbycompletely elimi­ nating inter-station interferencewhich is usually generated atthe time of selecting FM stations. FOREWORD TABLE 1. Dolby ModeChart 16 Toobtain optimum performance and enjoyment from theModel 4300, please study these instruc­ tions carefully. Follow thestep-by-step instruc­ tions to obtain maximum performance. This manual is divided into two parts. Thefirst covers installation andoperation insimple, non­ technical language. The second describes the Model 4300inmore detail with technical specifi­ cations and functional explanations. GENERAL DESCRIPTION YourMarantz Model4300 isahigh-quality Stereo 2 +Quadradial 4Receiver developed byMarantz, a name famous for quality inthe audio com­ ponent industry. TheModel 4300incorporates Marantz' exclusive Vari-Matrix circuit which sim­ ulates4-channel soundfromnormal 2-channel stereo programs, and is capable of reproducing 4-channel sound from anymatrix-encoded source. The 4300 will also reproduce anydiscrete 4­ channel program as well as regularstereoand monaural programs. Anoptional plug-indecoder adapts the4300 for any specific matrixsystem, such as Columbia's SQ. The FM tunersection employs an FET for the RF amp stage. The IF tuningcircuitemploys ceramic filters of widebandwidth and high selectivity to provide highsensitivity and un­ paralleled interference-free operation. The 4300 incorporates afull-process, 2-channel DOLBY System to reduce noise, inherent in recording music from records,tape,F Mbroad­ casts andTV. For quick identification of thecontrols and connections, references are printedinbold face type. AFTER UNPACKING It is advisable to save all original packing material to prevent damage shouldyouwish totransport or ship theReceiver (refer to Figure15 for pack­ ing instructions). Please inspect yourModel 4300 carefully for any signs of damage in transit. It has undergone stringent quality controlinspec­ tion and testsprior to packing, and left the factory inperfect operating condition. If the unit is damaged, notify thecarrier without delay. Only theconsignee mayinstitute aclaim with the carrier for damage during shipment. How­ ever, theMarantz Company will co-operate fully in such an event. Save the damaged carton as evidence for inspection by thecarrier.