Sherwood AM-9080 Service Manual

SERVICE MANUAL
AM-9080/B @ Sherwood
5-CH POWER AMPLIFIER
§ Sherwood
NEWCASTLE
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5-CH POWER AMPLIFIER AM-9080
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« CONTENTS &
SAFETY PRECAUTIONS seceacSisicentencscgacshiider vic ctacerseuteadesconsseueecwondseetscdvosds sbeisens ccacsasesuvese coocuvepecdestessoasateesea tence 2
SPEGCIFICATHON Siiecocecouccosc hock bes ctesocaCebeeeeetecteccasihins Riedie sSe ous Galion Ouaes cbvees av riko Th Cesecicascuugensseaacoarsaoscdacnccasebecuosaseeey 3
WIRING DIAGRAM K..ccsccccessccccasccesssacectsassssccnesavccnecseinseccctesseecossredenasacnsescanssseceucedanbeccacnnseccuseuctansesevessenavenencesrs 4
BLOCK DIAGRAM............ ucveaccevanncteacaxeudaweraricedssineansesonecadebcadevsdccacebucaaserdsavncdvectaceusysssbluucweatdagabeesescunseasecesvesse 6
TROUBLESHOOTING waves cccevecdesccel doessccvevboniliecs covoawcdiuseucde seluedinsadcuatensen secs otaveusedaccbecastessseaersecesdseessesdoateeedanser 8
MEGHANIGAL PARTS LISE sc siscaccsausetivsdh Gece sucavlecteccoesacsveciedlbsseveds nce cvvsdseesesvedetansasesvessaseusadtaliveswenusenvaedsaders 9
EXPEODED!' VIEW i. vcicccceevsnsvnccsstagsssucdvevdecsdvectsucdest ssanabevsiselsdetseosrcetes teccadocnuvteocachsatbasdaaSeases coseanasbeeaplonpeveesectans 10
PRINTED CIRCUIT BOARDS. .0.... ii ecccie ee eeceececcccenessnscceceeennecenescevenseseeeaeeens B o d as sxe Sah avodbouveleedcaetvevedeloseass ites 12
ELECTRICAL PARTS. LIST ..............cccccccecsssssesseeceereneeeee sci Sycllaceiewh cutie stay eos Goss obedag ea tiacieaes Gensaebnek cobeumebest speared 16
IC''S FUNCTIONAL BLOCK DIAGRAM ..............:csssccsssssscerscecseenenereccecnensceccsccssesseeesesecesesseneeesecseeesconenssuareres 20
SCHEMATIC DIAGRAM (1, IL, Il) .....cscssscssseessscsseesseecssesecsssseessennensscnseseeseecnscesnseesagesusenessenreesersreaees see sesesoees 22