accuphase—e202-(spec-sheet)维修电器原理图

E-202INTEGRATED STEREO AMPLIFIERThe Accuphase E-202 is a top class Integrated Ampli-fier with separate component grade features andcharacteristics.It delivers 100 Watts Per ChannelRMS into 8 ohms with less than 0.1%distortion from20 to 20,000Hz.This high power capability is backedup by heavy duty power transistors in a parallel push-pull drive output stage.The three position SpeakerDamping Control allows one to gain the maximumperformance from your speakers.The preamplifiersection is loaded with features such as,Disc LowEnhancement,Subsonic Filter.Switchable Disc6Impedance Selector and provision for connection ofup to three tape decks with independent dubbing.The E-202 combines the best of separate componentsinto a single unit with performance that rivals many.POWER OUTPUT:(both channels driven from 20Hz toMAXIMUM INPUT FOR LOW LEVEL INPUT:Less than 1aB tracking ertoe.20,000Hz with no more than 0.1%total harmonci distor-0c1:300mV RMS at disc level control maximum for 1kHz&85P8RON position boosts low frequencies for low leveltion):140 watts per channel,min.RMS,at 4 ohmsDise 1.600mV RMS at disc level control minimum for 1kHz5”简n镜100 watts per channel,min.RMS.at 8 ohmsDise 2:300mV AMS+9dB boost at 50Hz when the volume knob is50 watts per channel.min.RMS,at 16 ohmsdistortion 0.05%at 1 kHz]adjusted to -30dB positionTOTAL HARMONIC DISTORTION:(from 20HzOUTPUT LEVEL AND IMPEDANCE:DISC LOW ENHANCEMENT (for Dise Input):Preamp.Output:1.0V,600 ohms (at rated input level)+ldB at 100Hz to RIAA standard characteristics withto 20,000Hz at any power output from 1/4 watt to ratedTape Hec.1.2.160mV.200 ohms (at rabed input levell)LOW ENHANCE"witch set to ON position.power)4 ohms:0.15%max.HEADPHONE JACK:FILTERS:Dae Subronie Fitter:25Hz cutoff 60B/oct8ohm0.15%m%.For listening with low impedance (4-2 ohms)dyramic stereoLow Filter:30Hz cutolf 18gB/oct16 ohms:0.15%max.headphonesHigh Filter:SAHz cutoff 1208/octINTERMODULATION DISTORTION:(High Level Input to MainPOWER LEVEL METER:p山touVOLTAGE AMPLIFICATION IN DECIBELS:Meter is to read OdB when amplifier produces 100 wattswill not exceed 0.1%at rated power output for any combinationMain Amp.Input to Output:29 dBinto 8 ohms load.of frequencies between 20Hz and 20,000HzHigh Level Input to Preamp,Output:16d8 lat VOLUME controlMETER RANGE switch is provided to increase meter sensitivityFREQUENCY RESPONSE:Main Amp.Input:0.-02d0N um10020High Level Input:+0.-0.5dBLow Level Input to Tape Rec:36dB (Dise 1 level control providesOUTPUT LOAD IMPEDANCE:4.8 and 16 chesLow Level Input:0.-1.0d86d自variationlPOWER REQU月REMENT:(at rated power output from 20Hz to 20,DOOHrlHUM AND NOISE:Main Amp.Input:94d8 below rated outoutVoltage slector for 100V.117V,220V.240V 50/60Hz operationDAMPING FACTOR:[at B ohms lood,20Hr to 20,000HzlHigh Level Input:80d8b时ow rated0upConsumotion:70wa时ts时2 ro sir91 I outputwith "SPEAKER DAMPING"sitch set to:Low Level Input:74dg below rated output375 watts at rated power output into 8 ohms loadSEMICONDUCTOR COMPLEMENT: