Service manuals, schematics, eproms for electrical technicians
USSR BAKU 58 M.
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35.4 KB
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AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar ussr manual?
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USSR BAKU 58 M.
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Relevant AUDIO forum topics:
Hi guys,
I am trying to repair a Digipro 1500s psu that had a really bad short due to a drink spilled over the sub S30.
Thanksfully it only shorted one of twin modules but unfortunately the PIC18LF2321 is shorted and i haven´t got the .HEX to program a new PIC.
Does anybody have some kind or information or even a SM? The 1000s it´s similar but instead of having a PIC it have an 555 ic.
Thanks in advance.
Greetings!!
PD: If somebody have a defective module and want to sell it, we can get in contact.
I am trying to repair a Digipro 1500s psu that had a really bad short due to a drink spilled over the sub S30.
Thanksfully it only shorted one of twin modules but unfortunately the PIC18LF2321 is shorted and i haven´t got the .HEX to program a new PIC.
Does anybody have some kind or information or even a SM? The 1000s it´s similar but instead of having a PIC it have an 555 ic.
Thanks in advance.
Greetings!!
PD: If somebody have a defective module and want to sell it, we can get in contact.
Üdv mindenkinek.
Egy Ecler tunerben vacakol a tárgybeli kvarc..sajnos csak ennyi van rá irva...valaki megtudja mondani pontosan az értékét..
Köszi..üdv LF
Egy Ecler tunerben vacakol a tárgybeli kvarc..sajnos csak ennyi van rá irva...valaki megtudja mondani pontosan az értékét..
Köszi..üdv LF
Tiszteletem!
Soundcraft spirit folio notepad keverőből hiányzik a Q3 as tranzisztor ,Vagy a típusa vagy egy kapcsolási rajz sokat segítene.
Köszönöm
Soundcraft spirit folio notepad keverőből hiányzik a Q3 as tranzisztor ,Vagy a típusa vagy egy kapcsolási rajz sokat segítene.
Köszönöm
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
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