Service manuals, schematics, eproms for electrical technicians
VEB STERN-RADIO BERLIN KR 650 660 1983 KAZETTAS RADIO SM
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4.5 MB
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Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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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 veb manual?
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VEB STERNRADIO BERLIN KR RADIO 650 660 1983 KAZETTAS STERN
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Relevant AUDIO forum topics:
Sziasztok!
A topikban szereplő készülék semmi életjelet nem mutat a Power gombra sem semmire.
A reset-eket megcsináltam a gomb kombinációkkal de semmi. Töltést vesz fel, majd lehúzva az aksipakkról a főpanelra felmegy 7.9V ami jó, mert 7.2V/5000mAh-s akku van benne.
Hálózatra dugva még feljön a főpanelhez egy 22V körüli fesz a táppanelról.
A tulaj aki hozta főként leesést emlegetett, de belül sárból fröccsenéseket is látni.
Mivel kezdjem? Van kapcs rajzom ide fel is töltöm.
JBL PARTYBOX 110 COMPLETE TEARDOWN !!! (youtube.com)
Kösz előre is
A topikban szereplő készülék semmi életjelet nem mutat a Power gombra sem semmire.
A reset-eket megcsináltam a gomb kombinációkkal de semmi. Töltést vesz fel, majd lehúzva az aksipakkról a főpanelra felmegy 7.9V ami jó, mert 7.2V/5000mAh-s akku van benne.
Hálózatra dugva még feljön a főpanelhez egy 22V körüli fesz a táppanelról.
A tulaj aki hozta főként leesést emlegetett, de belül sárból fröccsenéseket is látni.
Mivel kezdjem? Van kapcs rajzom ide fel is töltöm.
JBL PARTYBOX 110 COMPLETE TEARDOWN !!! (youtube.com)
Kösz előre is
Salve,
Cassa bruciata Bheringer Eurolive B215D
Si tratta di una cassa Biamplificata
con amplificatore per i Bassi in classe D e per gli alti un ic TDA7293.
Oggi finalmente sono riuscito a risolvere questo guasto.
Lo voglio pubblicare per aiutare il forum ringrazio per aver auto lo schema.
Stato della cassa iniziale al ricevimento
>accensione led rosso in protezione nessuna uscita audio in funzione.
1°passo: verifica del TDA7293
in corto circuito pin 7 con pin 14 = è bruciato!!!! da sostituire
2°passo: verifica oscillatore IC11 IRS20955 = NON OSCILLA bruciato!!!! - da sostituire.
- Fatto... MA NON FUNZIONA!!! esamino il circuito meglio R72 rotta C89 in -- corto. Sostituisco anche C95
- = FUNZIONA!!! PER0' INTERVIENE IL LIMITER.
- Ho dovuto fare questa modifica per urgenza. Del cliente.
- Momentaneamente ho variato il valore di R38 da 100K A 10M.
- IL LIMITER INTERVIENE MENO.
Sè c'è qualcuno che mi può passare una dritta
Spero di essere stato utile e di aver decritto bene il mio intervento
Vi saluto buon lavoro a tutti
Lucio.
Sziasztok!
Egy Yamaha RX-V350 Center IC-je nem működik (STK 404-130Y). Betehető-e helyette az STK 404-130S?
Köszönöm a segítséget.
Üdvözlettel:
Attila
Egy Yamaha RX-V350 Center IC-je nem működik (STK 404-130Y). Betehető-e helyette az STK 404-130S?
Köszönöm a segítséget.
Üdvözlettel:
Attila
Sziasztok!
Van egy Sony STR-DE135 erosito, minden tokeletesen mukodik, egy dolog kivetelevel. A hangero allito poti jobb oldala mellett van ket mikrokapcsolo. Felul a Bass Boost es alatta a Mute gomb. A problema az, hogy amikor nyomogatom a Bass boost gombot, akkor veletlenszeruen, hol jol mukodik, hol a Mute gomb aktivalodik helyette, es van amikor teljesen erzeketlen. Ha a taviranyitorol nyomogatom ugyanezeket, ott tokeletesen mukodik. Valakinek van valami otlete ezzel kapcsolatosan? Az erosito mar ebben az allapotaban kerult hozzam, es meg sosem volt szetszedve.
Segitsegeteket elore is koszonom.
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