McIntosh MAC 4300V Service Manual

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Performance Specif ications AMPLIFIER SECTION FM SECTION STEREO POWER OUTPUT USABLE SENSITIVITY 100 watts into I ot- 4 ohm loads is the l3dBF which is 1.22uV across 75 ohms minimum sine wave continuous average power output per channel, from 20 to 50 dB SUIETING SENSITIVITY 2OrO0OHz, with both channels operating. Mono 17dB which is 2.0uV across 75 onms POWER BANDWIDTH Stereo 37dBF which is 20uV across 75 20 to 20,000H2 ohms TOTAL HARMONIC DISTORTION SIGNAL TO NOISE RATIO O.O2% maximum at any power level from Mono 75dB 25O mi.l.liwatts to rated power per channel , Stereo 70dB 20 lo 20,0OOHz, both channels openating. FRESUENCY RESPONSE iNTERMODULATION DISTORTION Mono *0, -1.OdB from 20 Io 15kHz O.O2% maximum at any power level from Stereo +0, -1 .gdB f rom 20 to 'l SkHz 25O milliwatts to rated power per channel, for any combination of frequencies from 20 HARMoNIC DISTORTION Io 2O,000H2, with both channels operating. Mono O.Og% at 100H2 O.O8% at lk FREOUENCY RESPONSE O,12% at 1Ok +0, -0.5d8 from 20 to 20,0001-lz at rated Stereo O.OB% at 100H2 power. 0.08% at 1k O.120Á at 10k INPUT SENSITIViTY phono z.smv produces rated output INTERMODULATION DISTORTION Tape, Aux 2S0mV produces rated output Mono o'o8oÁ Power- Amp 1.5V produces rated output Ster-eo o'120/o SIGNAL TO NOISE RATIO, A-WEIGHTED CAPTURE RATIO Power Amp 1OOrJB below rated output 1'5dB Tape, Aux 90dB below rated output phono 8OdËt with 10mV input ALTERNATE CHANNEL SELECTIVITY 55dB MAXIMUM INPUT SIGNAL Phono 90mV SPURIOUS RESPONSE High level 9V loodB INPUT IMPEDANCE IMAGE RESPONSE Phono 47k ohms, 4TpF SodB Tape, Aux 30k ohms power Amp 22k or,m STEREO SEPARATION 45dB at 100H2 DAMpING FACTOR 50dB at 'l k creater than 40 35dB at 1ok TAPE OUTPUT SCA REJECTION Phono 250mV with rated input 65dB Tape 250mV with rated input Tuner O.BV at 1OúÁ modulation (FM) PROGRAM EOUALIZER t12dB at 30, .150, 500, 1500 and 1 0,000H2 2

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AM SECTION SENSITIVITY 35uV (External Antenna) SIGNAL TO NOISE RATIO 50dB at 30% modulation 6OdB at lOOoÁ modulation HARMONIC DISTORTION O.5% maximum at 3O% modulation, O.2% typical FRESUENCY RESPONSE *O, -6d8, 2OHz Io 4,00OHz ADJACENT CHANNEL SELECTIVITY 40dB minimum, IHF IMAGE REJECTION 65dB minimum IF REJECTION 65dB minimum GENERAL INFORMATION SEMICONDUCTOR COMPLEMENT 118 Silicon Diodes 7 Varactor Diodes 41 Light Emitting Diodes 4 Seven Segment LED Display 96 Bipolar Transistors 45 Integrated Circuits AC POWER OUTLETS 4 Black, switched, l Red, unswitched, 1000 watts, total POWER REOUIREMENTS 12O volts, 5O/6OHz, 60 to 480 watts WEIGHT 34.5 pounds (15.6k9) net, 48.5 pounds (22kg) in shipping carton lL A ^[----l^ cauTtoN,o*r,û, vi I v ?f'i,íf"!".,,**".^lln vl Iv SPEAKEBS 3 CLCB 6lølløllølløllòlffi SPEAKEBS 2 CLCR @lølløllølløl@ffi SPE�-KEAS ¡ cLcallæqpllØllØllØlg)ffi lllrlnfosh MAc43oov BEcETvEB .@r@" ñlñr.v v" VCFfrAPE OUT, @t@roF @,@VIOEO SELECTOR @ï*@Lo o8 @*"@ @*,@ro oR @-@ @#@L@ @F @#@ I loLtrf*l]olIIHH¡¡l- co @ @oOo Fig. 1 Rear view