ROLAND_RE-301_维修手册电器原理图

MAY:30,1979RE-301RE301SERVICE NOTESSECOND EDITTION1SPECIFICATIONS1-1.INPUTImpedanceSensitivity*-50dB3K23.2(2.8)mVrms-35dB56K217.8(12.5)mVrms-20dB56K2100(58)'mVrms*With 1KHz sine wave input,to obtain 0 VU,slightly over which Peak Level Lamp lights up.Figures in parenthesis indicate sensitivity for Serial No.Up to 621849.1-2.OUTPUTLevelImpedance(Approx.】Connected to both A and B JacksConnected to A Jack aloneH:-15dB88mVrms5K22.5K2M:-25dB27mVrms1.5K20.75K2L:-35dB9mVrms0.5K20.25K2*Input:1KHz sine wave,3.2mVrms,with Input Level switch at-50dB.Setting:All effects-off,Direct signal-onOutput:No load,from A Jack1-3.TONE CONTROLInput3.2mVrms sine wave,Input Level at-50dB600Hz6KHzBASSMAX·MINCENTERTREBLECENTERMAXMINOutput240mV.7mV150mV7mVNo load,from A Jack1-4.CELAY TIMERepeat RateMode 1Mode 2Mode 3Sound on SoundPH-1PH-2PH-3PH-4Max.40ms80msECHO210ms10sCenter60ms120ms320ms15sMin.130ms260ms720ms355IntensityDelay TimeCHORUSMin.2msMax.12ms1-5.OTHERS·Power consumption22WDimensions..·415(W)×190(H)×300(D)mmWeight,,..:….10kgRolandPrinted in Japan1A-31