accuphase—e206-(schematic)维修电器原理图

CIRCUIT ADJUSTMENT(回路調整)Notes.1.Internal input resistance of volt-ohm meter should be higher than 10k ohms.于又夕一体、入力抵抗10kQ以上の名交扮使下总。2.Adjustments should be made in case of the PC Board or Transistors being changed.調整住PC术一ド药石体卜ラ>少又夕左交换L九場合行)乙下总。3.After feeding 1~10 watts output for about 15 minutes,check bias adjustments again.出力1~107y卜前後℃通電動作世大後、亻了入電流花再于工？夕寸石。PROCEDURESTEPADJUST ITEM電压梭出ADJUSTREMARKS又テy7調整項目TEST EQ'PTCONNECTING POINT調整箇所調整·備考檢出器接続点POWER AMP ASSEMBLY (717-0029-00)7-了>ブAss'yBias Current of Lch.1Power AmpV.O.Meter set rangeVRIAdjust for“3mV"Lch.才了又電流to less than DC0.3VTest Point Pin TPl and TP2Ofor Lch.reading of V.O.MeterBias Current of Rch.子又夕一于又卜术亻卜TP1④.TP2O2VRIPower Amp.DC0.3V以下)テ又夕一)指示“3mV”1二調整Rch.バ亻了又電流for Rch.Lch.Rch.Power Amp AssemblyPower Amp Assembly(717-0029-00)(717-0029-00)Test Pointテ又卜ボ不>卜VR1④Test Point于又卜ポ亻之卜⊕www.hifiengine.com