Service manuals, schematics, eproms for electrical technicians
GIBSON GIBSONETTE LATER SCHEMATIC
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145.7 KB
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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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Looking for similar gibson manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar gibson manual?
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GIBSON GIBSONETTE LATER SCHEMATIC
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Relevant AUDIO forum topics:
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.
:) Helló tanya lakók!
Egy kedves ismerősöm kérésére, keresek Preludium B-31 hangfal hangváltó módosított rajzát!
Köszönöm!
Sziasztok!
Most került hozzám ez a 5.1-es erősítő, azzal a gonddal hogy csak a mély szól benne, a többi nem. Szét szedve megnéztem, brumra megy minden végfok, táp feszek jók. Merre keresgéljek benne?
Udv mindenkinek.
Keresem az Universum VTC-CD4007 tipusu hi-fi kapcsolasi rajzat.Ugyanakkor a segitsegeteket is szeretnem kerni.A fent emlitett hi-fi hangero es hangszin szabalyozolya nem mukodik.A TDA7440D IC tartalmazza a jelforras valasztot (ez a resze mukodik),valamint a hangero es hangszin szabalyozot,utobbiak nem mukodnek.A szabalyozo SDA , SCL jeleket megkapjak mert a jelforras valaszto mukodik.A TDA7440D ic-t kicsereltem,tapfeszultseget kap.Tanacsotokat varom.
Attila.
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