Bbk ma 700s pwramp
This is the 23 pages manual for bbk ma 700s pwramp.
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Page 1
MA-700PrincipleandServicing 1.Unitcircuitprinciple MA700isamiddle-levelactivespeaker,whichiscomposedofasubwooferspeaker,twofront satellitespeakers,twosurroundspeakersandacentrespeakerandwithexcellentsoundeffect.Ithas thefollowingfeatures: 2.1/5.1CHoutput; ¡ô ¡ô ¡ôBuilt-in5CHpoweramplifying,adaptabletoAC-3/DTSandstereomusicreplay; With6CHvolumecontrolandseparatelevelcontrol,andwithtoneadjustmentfunction. Theplayerincludesinputboard,outputboard,poweramplifierboardandcontrolpanel,inwhich, inputboardandoutputboardarecomprisedofseveralterminals;themainpartispoweramplifierboard, control,amplifyingpartoftheplayerandpowersupplyareallincludedonit.PCBboardcomposition figureoftheplayerisshownasthefollowingfigure1.1.1:(1)PCBboardcompositionfigureoftheplayer OUTPUTBOARD ~14V0 ~14VXP3XS3 XS21.2.3.XS4XP4SL R L SL R L GND GND C SRGND GND C SR 1. 1. 1.1. 2. 2. 2.2. 3. 3. 3. 4.4. 3.GNDL R GNDL R SW SR SL CSW SR SL C 1. 1. 1.1. 2. 2. 2.2. 3. 3. 3. 4.4. 3.XS1 XP2SWSPEAKERSW INPUTBOARDPOWERAMPLIFYINGBOARD FRONTPANEL'SBOARDCIRCUITCONNECTIONDIAGRAM Figure1.1.1PCBboardcompositionfigureoftheplayer -1-