罗兰Roland-RE-301-Chorus-Echo-Service-Manual维修服务手册说明书含电器原理图

MAY30,1979RE301RE-301SERVICE NOTESSECOND EDITTION1SPECIFICATIONS1-1.INPUTImpedanceSensitivity-50dB3K23.2(2.8)mVrms-35dB56Kn17.8(12.5)mVms-20dB56Kn100(58)mVmsWith 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:-25dB27mVrms1.5K0.75K2L:-35dB9mVrms0.5Kn0.25K2Input: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 MINCENTERTREBLECENTERMAXMIN240mV 7mV150mV7mVOutputNo load,from A Jack1-4.CELAY TIMEMode 1Repeat RateMode 2Mode 3Sound on SoundPH-1PH-2PH-3PH4Max.40ms80ms210m510sECHOCenter60ms120m5320ms15sMin.130m5260ms720ms35sIntensityDelay TimeCHORUSMin.2msMax.12m51-5.OTHERSPower cons5 umption…22W●Dimensions..415(W0190(H)x300(DmmWeight........……10kgRoland1(1985.MAY C-2)A-3.1 Printed in Japan