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ELECTROHOME 103A 104A RADIO SCH

AUDIO - SERVICE MANUAL
Type: (PDF)
Size
495.4 KB
Page
2
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    RADIO 103A 104A 103 104
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Relevant AUDIO forum topics:
Monacor_PA_940_power amplifier_240w A végfok nem működik. Előfok jó. Tápok rendben.
Üdvözlök Mindenkit!
Nagyon megköszönöm, ha valaki tud segíteni.
RM-R016 DAB rádió hangerőszabályozás!
Sziasztok ! Adott a fenti rádió melyik M62429 digitális hangerő szabályozása nem működött.A I2C buszon 2V jelet mértem cseréltem gondolván rossz ! A másik ic vel sem működött ! Az adatlap szerint már 0.8 V -t H szintnek érzékel!A processzor mely küldi a buszra jelet 3.3 V ról működik szerintem 3V körüli szinten kéne hogy adjon ! Gondolván egyet külső feszültséggel megemelem a jelelt 5V ról 10 KoHm keresztül a clock- ot megemeltem igy 3 V-let az impulzus szkóppal nézve ami hitelesnek mondható és lás csodát a hangerő szabályozó rendben működik !Várom véleményeteket! Szép napokat!
Bheringer Eurolive B215D
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.
Kenwood KRF-V6100D kapcsolási rajz
Keresem a fent említett készülék kapcsolási rajzát. Segítségeteket előre is köszönöm
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