Daewoo AKD-0105 Series Service Manual

Contents

3. EMERGENCY TROUBLE SHOOT53-1. General FunctionNo sound fromspeakersYesNoYesOutput connectoris missingOutput connectoris inferior goodsPut exactly outputconnector in.Change outputconnector tosuperior goodsYesNoPower IC, OutputSocket is inferiorgoodsChange Power IC,Output Socket tosuperior goodsYesAAL.C.D or L.E.Dis not turnedoff.YesNoYesPower is notsupplied Ref. PointOutput voltage ofpower IC is little.Change RegulatorIC and checkoutput voltage.YesNoLCD or LED isinferior goods.Change LCD orLED to superiorgoods.YesDifferent eachchannel haveoutput level(Front, Rear,Left, Right)Treble or Bassis lowunusuallyYesNoYesBalance of frontand rear is in onesideBalance of Left,Right is in oneside.Re-adjust Balanceof front, rearRef. Balance = CenterFront:00 / Rear:00Ref. Balance = CenterLeft:00 / Right:00Ref. Balance = CenterTreble:00 / Bass:00Ref. Regulator IC outputVoltage = VRef. Electrical Parts ListL.C.D., L.E.D.Re-adjust Balanceof Left, RightYesYesBalance of Trebleor Bass is in oneside.Re-adjust Balanceof Treble or BassYes