Model 2230 ••• --- •• --- •• _~® Stereop-honic Receiver MARANTZ CO., INC. 20525 NORDHOFF STREET, CHATSWORTH, CALIFORNIA 91311 A WHOLLY-OWNED SUBSIDIARY OF SUPERSCOPE INC.
Muting Circuit AM Tuner TABLE OF CONTENTS Preparation for Use Rear Panel Connections Phono Tape In Tape Out Auxiliary Quadradial Main In and Pre Out Loundspeaker Systems FM Antenna Antenna Attenuator AM Antenna Connection to AC Outlet Convenience Outlet Simplified Operating Procedure Tuning Meters Tuning Mono Switch Tape Monitor Switch Loudness Switch Low Filter Switch Hi Filter Switch Muting Switch and Level Control Main.
FOREWORD GENERAL For optimum performance and enjoyment from your Model 2230 Stereo Receiver, please study these instructions carefully. Installation and operation are not complicated, but its flexibility and features deserve your becoming familiar with its controls and connections. This manual is divided into two parts. The first covers installation and operation in simple, non-technical language.
Figure 1. Rear Panel Connection Facilities and Adjustments PREPARATION FOR USE REAR PANEL CONNECTIONS All s,gnal connections to the Model 2230, with the exception of the FM antenna and loudspeakers, should be made with shielded audio cables. Figure 1 shows the location of input and output jacks on the rear panel. These jacks are for "permanent" connections. Front panel jacks and their use will be discussed later. The rear panel signal connections are arranged in stereo pairs.
REPEAT WIRI NG AS FOR SYSTEM 1 Figure 2. Loudspeaker System Connections AUXILIARY LOUDSPEAKER SYSTEMS High level AUX input jacks are for miscellaneous sources such as extra tape players with selfcontained playback preamplifiers, phono cartridges with RIAA-equalized high-level output, additional tuners and/or receivers, TV sound outputs, and other external components.
(Note: Close inspection of standard zipcord will reveal some form of coding on the insulation, e.g., ridge or groove on one edge, one of the wires may be "silver" while the other is bare copper.) Coded wires help insure identical connections for each channel. For each channel, the coded wire can be connected between the "common" terminal of your loudspeaker and the GROUND terminal of the amplifier channel.
CONNECTION TO AC OUTLET With the front panel power pushswitch "out," plug the Iine cord into an electrical outlet supplying the proper voltage. CAUTION: DO NOT PLUG YOUR MODEL 2230 INTO A DC OUTLET. SINCE SERIOUS DAMAGE WILL OCCUR. CONVENIENCE Figure 4. AM Ferrite-rod Antenna ANTENNA ATTENUATOR The ANTENNA ATTENUATOR can be switched into or out of the antenna circuit.
pasltlan. If FM .or AM is selected, rotate the Gyra-Tauch TUNING knab until the desired statian is tuned. Adjust the valume cantral far camfartable listening valume. signal being recarded befare and after recarding. This switch is alsa knawn as the TAPE-SOU RCE switch. LOUDNESS SWITCH The tuner sectian .of the Madel 2230 is equ ipped with electranically triggered circuits which autamatically mute interstatian naise and autamatically switch ta the proper made .
I ••--.,;> ' . III ~--e 9e e ~ -- e . bal.;••. frvb'e "lid .•. 0Las"," 1•.•"" ~~srlector ce.•.• o..Oo¥#1I.0Ef1 stereoplaones o"u. •• ~~_ _-:-..cr.£ •••••••• 'l.1"£A. ~-.-" ," .• 3_"':" -C:..- =--0",,' . _~_~ ~ "~5S ... __ c_' ~ ~r: '_c _'_' _, __ i·' ,_~, __ ,_L _ • e ....-.r ..•"·S" • Figure 5. Front Panel Controls and Jacks MAIN CONTROLS MAIN-SPKR-REMOTE AND SWITCHES SELECTOR SWITCH The selector switch selects the program source for listening or recording.
LEFT CHANNEL COMMON RIGHT CHANNEL Figure 6. Stereophone Plug STEREOPHONES This jack accepts the standard 3-conductor phone plug used on standard stereo headphones (see Figure 6). It is internally connected to the power ampl ifier section through isolation resistors to provide adequate sound level with popular low impedance headphones as well as with high impedance ones. Two or more sets of headphones may be used with the aid of "Y" connectors.
machines. At any time during the recording session, the recording can be monitored by depressing the TAPE MONITOR pushswitch. REMEMBER: Disconnect the plug from the dubbing IN jack to monitor the main recorder. Insert the plug to monitor the external recorder. Step 1. Step 2. Step 3. I nsert the plug into the dubbing IN jack. Set the selector switch to "TAPE" and TAPE MONITOR push-switch to "out" position. Put the external recorder into the playback mode and the main recorder into the record mode.
FRONT SPEAKER SYSTEM + MARANTZ MODel 2230 OUTPUT CHANNELS OF STEREOTAPE THE FRONT OF ALEFT 4~CHANNEL IS AND RIGHT TAPE DECK TAPE TAPE IDENTICAL STEREO DECK DECK (BELOW) TODECK THE CONNECTION CONNECTION OF 2·CHANNEL 01 4-CHANNEL 2·CHANNEL oOISJISSIOo ~ OOElEIOo oO~ITIOo ~ RECORD PLAYER OUTPUT 1c=J 001 2-CHANNEL a·TRACK TAPE PLAYER OUTPUT INPUT Ici~~~1 ONT FT NT HT u·8 TAPE PLAYER A' T ~ ~ =0=1 I II II III.
QUAD RADIAL FM SIGNAL STRENGTH METER TO SELECTOR SWITCH STEREO INOICATOR TO MUTING SWITCH TO SElECTOR SWITCH FROM RIGHT CHANNEL DUBBING OUT TAPE OUT TAPE IN AUX SPEAKER AM AUDIO SYSTEMS FM AUOIO PHONO Figure9. FunctionalBlockDiagram TECHNICAL FUNCTIONAL DESCRIPTION DESCRIPTION GENERAL FRONT END Figure 9 is a block diagram of the Model 2230 Receiver showing the main functional elements and input and output signal routing. Each AM and FM front end has its own I F stages.
generated by a local oscillator. This mixer converts the carrier frequency to the 10.7M Hz intermediate frequency. Careful attention to its thermal and electrical characteristics has minimized drift, thus obviating the necessity for AFC. The 10.7MHz converted signal is then fed to a phaselinear ceramic IF filter, followed by an IC limiter. It is then, in turn, processed through an FM discriminator. The output of the FM discriminator is fed to a buffer amplifier which then drives the demodulator.
selectively to the desired source. TAPE SIGNALS With the exception of tape input, all high-level inputs are fed directly to the selector switch. Tape input is routed through the front panel dubbing IN jack to a section of the TAPE MONITOR switch. The dubbing IN jack is a three-conductor stereo jack which has two built-in switches, one for each channel. Normally, these switches are closed, allowing the tape input signals from the TAPE IN jack on the rear panel to be fed to the TAPE MONITOR switch.
PleasePack the Receiver as Illustrated. CAUTION Please DO NOT ship your receiver mounted in its accessory walnut cabinet. Insure receiver for full value: Make sure that your correct return address is -on shipping lable. Ship via a reputable carrier (DO NOT USE PARCEL POSTl. Be sure to obtain receipt from camer. SERVICE NOTES REPAIRS Only the most competent and qualified service technicians should be allowed to service the Marantz Model 2230 Receiver.
The Sound of Marantz is the compelling warmth of a Stradivarius. It is a dancing flute, a haughty bassoon and the plaintive call of a lone French horn. The Sound of Marantz is the sound of beauty, and Marantz equipment is designed to bring you the subtle joy of its delight. Wonderful adventures in sound await you when you discover that the Sound of Marantz is the sound of music at its very best.
