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Pioneer A676 mk1


DB.

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Da li ima neko jos neku ideju, sta bih mogao da probam, pre nego sto vratim vlasniku pojacalo. Zamenio sam jos jedan op amp u kolu potenciometra glasnoce, takodje sam zamenio kondezatore u pretpojacalu i njegovom napajanju. Zujanje je i dalje prisutno-smanjuje se i pojacava okretanjem potenciometra glasnoce. Zvuk se cuje samo preko direct veze.  Od svega toga smanjio se malo dc offset na oko 51mV desni i levi kanal 53mV. Nije mi tesko da coveku promenim i ostale kondove komplet, ako smatrate da treba, idem do Nisa sutra, pa kupicu. Takodje imam i visak filterske posle greca, ispravni su. 

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