Crown-IC150-pre-sch维修电路原理图.pdf

13SPECIFICATIONSFREQUENCY RESPONSEPHASE RESPONSEHUM AND NOISEDISTORTION THDlNPUTSINPUT GAIN & IMPEDANCEPHONO INPUT OVERLOADOUTPUTPHONO OUTPUT & IMPEDANCEVOLUME CONTROLLOUDNESS COMPENSATIONPANORAMA CONTROLTONE CONTROLSMUTINGFILTERSAC OUTLETSPOWER REQUIREMENTSSEMICONDUCTOR COMPLEMENTDIMENSIONSWEIGHTHi-level: 0.6dB 3Hz-100 KHz with hi-impedance load, 0.1dB1OHz-20KHz with IHF load; Phono: 0.5dB of RIAA, calibratedHi-level: typically 1 to-12 20Hz-20KHz with IHF load;Phono: typically 5 20Hz-20KHz additional phase shift20Hz-20KHz inputs shorted; Hi-level: 90dB below rated output(typically 1OOdB with IHF “A” weighted measurement; Phono:80dB below 1OmV input) typically 0.5V input noiseessentially unmeasurable; IM: less than 0.01% at rated output withIHF measurement (typically under 0.002%)five hi-level inputs (1 tuner, 2 auxiliary, 2 tape) two equalizedphonosHi-level: 20.8dB0.2dB, 1OOK ohms; Phono: 50-70dB (adjustable)47K ohms. Sensitivity: 1mV 1KHz for rated output.33-330mV at 1KHz, depending on gain (100mV when set to 60dBtotal preamp gain)1Ov maximum before overload, 2.5 rated, 600 ohms outputimpedance(at tape out) 600 ohms with typical maximum output of 9v RMSat 1KHz into hi-impedance loadover 60dB dynamic range with calibrated trackingnew wide-range design for excellent simulation of Fletcher-Munson curves down to 60 phons; with exclusive dual R/C bass-boost coordinated with volume controlunique, continuously-variable control for infinite adjustment fromstereo to mono to stereo-reverse, replaces confusing conventionalstereo-mode switches and blend controls with the first intuitivecontrol of stereo spatial dimension.continuously variable 15dB at 30Hz and 15KHz, cancel switchbypasses independent bass and treble control settings to giveinstant true-flat response in both channelsuses plug-in reed relay -removes turn-on transients from IC-150output thus protecting speakersRumble: -3dB at 50Hz with 6dB-per-octave cut-off, Scratch;-3dB at 5KHz with 12dB-per-octave cut-offfour switched with 25A switch, one unswitchedabout 2 watts at 120v or 240v 50-400Hz ACtwo integrated circuits (equivalent to 42 bipolar transistors and2 FET) for a total of 54 bipolar transistors, three FET, threezeners and seven diodes5” H x 17” W; 8 1/8” behind panel10 Ibs., with walnut cabinet 16 Ibs.RadioFans.CN 收音机爱 好者资料库RadioFans.CN 收音机爱 好者资料库