Service manuals, schematics, eproms for electrical technicians
ELTRA AIR PRINCE-1013 1965 SCH
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AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Good luck to the repair!
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ELTRA AIR PRINCE1013 1965 PRINCE 1013
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Relevant AUDIO forum topics:
Sziasztok!
Hoztak 2 db mono házigyártmányu QUAD-ot, az egyiket mintának mert az jó.A másikban azonnal kiég a végtranzisztor MJ 15003 (TO-3), meg az egyik meghajtója BD246C.Tápja kb 500VA toroid transzformator 2x44000uF elkókkal, tápja stabil ±56V. Az OP LT318 fémtokos volt, az is rossz volt.
Beraktam uj MJ15003-at kiégett, meg elégett a NYAK-on egy pár helyen a vezeték ezek után olcsobb 2N3055-öt tettem bele az is azonnal kiégett.
Most OP helyett TL081-et, majd mostmár TL071-et, ezen az OP-n 6-os kimeneten 1.1V helyett -8.8V van, ha kiakasztom a hangszóró kimenetrôl a visszacsatolást (R5=4k7) akkor -14V-om van, de ez átsétál lassan +14V-ra, OP tápja ZY15-el stabilizálva van de nekem 15.9V,-15.6V van, próbáltam a pl.negatív tápot (mivel nincs duplatápom) külsô táppal kiegyenliteni de a 6-os kimenet nem változott.
Tr2 kolektorán +54V (jó?)
Tr1,Tr3,Tr4 emiterjein +54V (rossz)
Végfok bázisokon +54V (rossz)
A rajz ehhez hasonlo de gyengített nincs benne a Tr5, Tr6, az OP kimenetén nincs D8 zener,D9 zener.
http://img15.imagefra.me/i83f/shizo/vrfk_108_uef0y.jpg
i have an speaker mackie srm450
the problem is need a lot of signal for start to work i don't now why? i all ready checked all the input and routing an looks fine
tried to upload the schematic but i can not do
Tisztelt Uraim!
Adott ez az Orion hifi, ami a fenti ok miatt üzemképtelen. A kérdésem, hogy van e a trafóban hőkioldó biztosíték, vagy újra kell tekercseltetnem?
Adott ez az Orion hifi, ami a fenti ok miatt üzemképtelen. A kérdésem, hogy van e a trafóban hőkioldó biztosíték, vagy újra kell tekercseltetnem?
Tisztelt Urak!
Tudna-e valaki segíteni, hogy a KSC 2316y és a KSA 916y tranyókat mivel lehetn kiváltani!?
Köszönöm.
Üdv.
Galibali
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