ViewSonic PS790 Service Manual

ORDER NO. FTD980405404
CONTENTS
SERVICE WARNING .......ccccccsccssecsecesccceceecesceseseeeesesseeeeecseeaceeessesscesuecesssescaeecaeecssenscsessaesseeeecaeecnecesaeessagaeeeeregeeeeeeennee? 1
SAFETY PRECAUTIONS ..........:ccccccsecccceecteeseceseceesenecneeceeeersessasanseccescsaussessseseeessscsssssessessussesenscaeeesseensenseenneneesneeneeeeesaes 2
SPECIFICATIONS .........::secccsscseccsscessessssscceccescesensceeseesssausceuerensuenevsesssevascensesesceaeaseessenseessnceeesenseeseeecseensensens
eee esesaseeeneneniee 3
DIMENSIONS. .........scccsccsscsssesscsssceserscescesssesnesesesnsneusanaeanenassvsnsecanssensesssesaeanseaneesceesssansensenseenensnsenceesecsnensnesssaeesesaseeeserensed mt
DISASSEMBLY INSTRUCTIONS .........c:cesceecssseceseeeeesseesenecsesesseccssersaeessesecessccsaasenenseaeeaeeeneeenseeenaesasaeeegeeeeeeegeneneeeeereeees 13
CONTROL LOCATION viiccsi: scvesecvessutdtenvsaxcisdedinvescogs decceesieutenspbascoeteseestesuicay ncusesvsaduatiocdundgurenciUatodiadetenteicsiebageeenatsadessee? 16
CAUTION FOR ADJUSTMENT AND REPAIR... ccceccsseseeescceecssenseccueeasesaesaecesecsecsesssecseeessseeeseeecseessesseeeeeereneneaateney 17
CAUTION FOR SERVICING .......cccccecscceseeesceeceseeseeeeeeseseaecsseeseecuseuseesanessasaeeeeeeeeeeaeeeseeseeeeeseesaesaeesseesaees
seen teen eeegeee ee eeee 17
ADJUSTMENT AND CHECK PROCEDURE .......cescceccescsessscssceeesseseneneussuuseeeeseceasessesssesecsaessesssseseenesensasaeesaenaaaseseeenenet? 18
ADJUSTMENT SOFTWARE .......cccesccseseccescesceeseeeeesescsasessssscecsecesucseccauecussssesseesaeecsecsuanecseavssccaceseenseenecsgecs
es aneeseseeanent® 19
ADJUSTMENT CONTROL LOCATION... ccecccesesereccssseseesssessscecescssscseseseesseenseeeccseecsseseasesesessenssersecnsecsecseeanaaesserenennnts 20
REQUIRED ADJUSTMENT PROCEDURE AFTER A PARTS REPLACED. ...........::cccccsecsesseecsecseeeeenseensee
ce erennessenertins 21
ADJUSTMENT PROCEDURE ou... ee ecsscceeeceeceeseceesceceeceeessseseecacaceseaesecaeeeessseneessaeseneeeaeeeseeeeeaeseeeeseeeenseess
eae eeeeneeeeeeenend 22
BLOCK DIAGRAM. ...........::cccssccssccsseccesscesecccessensseesesccessnsenesssnssenuseussassacauscceusussansuessceenseeatesssceasseaatsessatsnssancaonsoaseneagenens® 32
CONDUCTOR: VIEW cssccsiscvicassccntecteestecclctecccseeudsstenctonsedusedss
ctevudelietatescdpcach abe siiteaadacectebaedabesctelatusnsechvebeausecgadddeetaceaatees? 40
SCHEMATIC DIAGRAM. ........ccccccecccescesceecneresenseeesseeeesaneesecuessaseaneneevaeeenseeseeaeseeeesseeeeaeeseeessessaeecaeeseseasaaeccsea
Genesee @eeREEO 43
TROUBLE SHOOTING HINTS... ccccecseesseesseeeeerseseesceencsseneecessssaseneeccesecsasensauenssecsssseeecarevanecsseesenanscaaeen
sa seeaeeeeee@eeeee® 54
EXPLODED VIEW icssccccessccescsbiestenss Seees vont etedeteest ee chests siens setts a dedd etedeenstaeh oes
Phi ease
Aisin crags a heeeensethens 58
REPLACEMENT PARTS LIST .......c.ccccccesseescecsseeeeceesneseeneeenseeeecesnserseeessesesesecssessasacseescsessussesesssseccacscneusecsenes
se eesenecesseeenee# 59
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