罗兰Roland-JC-120–JC-160-(79-3)-Jazz-Chorus-Service-Manual维修服务手册说明书含电器原理图

Feb.1,1979J○-120J0-160SERVICE NOTESApplicable to following serial number:JC-120380100~779499Third EditionJC-160440100~782919TECHNICALSPECIFICATIONSJc-120:Seria1No.380100-471649JC-160:Seria1No.440100-470549Rated Output Power22mV rms/channel1kHzInput SensitivityllmV1kHz4mV10kHzllmV@100Hzfull powerPower Consumotion200VA@1kHzfull powerTone Control RangeTreble35dB@10kHzMiddle0.8dB1kHzBass18dB@100HzSensitivity Ratio H/L10dB@1kHzResidual Noise15mV/channelSPVol.TC.max.Chorus Effect Sensitivity100mV1kHzLine Out Level100mV1kHzJC-120:Serial No.481650 and higherJc-160:Serial No.480550 and higherInput Sensitivity15mV1kHz6mV@10kHz30mV@100HzTcne Control RangeTreble37dB@10HzMiddle0.6dB1kHzBass17dB@100HzSensitivity Ratio H/L7.8dB@1kHzResidual Noise6mVSP.Vol.TC.max.Reffer to WAVEFORM CHART for:BBD Clock FrequencyChorus EffectVibrato EffectClock Modulation FrequencyChorus EffectVibrato EffectRoland (4th Printing NOV.'88 B-2)Printed in Japan1