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anddy

Reglare curent mers in gol

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Salut tuturor,

 

Am rugamintea sa-mi confirmati daca am reglat bine sau nu curentul de mers in gol la amplificatorul JVC Ax-33. 

 

Cum am facut eu:

-reglajul l-am facut fara semnal de intrare cu volumul la minim

-am intors ambii semireglabili in sens antiorar pana la capat

-am pornit amp. si am reglat curentul la ambele canale sa fie pana in 1.0 mV 

-am asteptat 5 minute cu amp. pornit si am reglat iar curentul de mers in gol sa fie intre 0.5 si 1.0 mV. Intre timp crescuse pe la aproape 3.0 mV

 

Procedura de reglaj e data in documentatia tehnica dar nu mi-e clar tot ce scrie acolo ca de exemplu:

1. the heatsink temperature must be sufficient high -> adica sa fie cald radiatorul? pentru ca la mine nu s-a incalzit deloc chiar si la 3.0 mV

2. daca trebuia sa reajustez iar la plaja 0.5-1.0 mV dupa 5 minute de functionare?

 

Multumesc.

 

 

ax33.jpg

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Dupa 5 minute reglezi cat sa ai 2.3mV.

 

Radiatorul este cald dupa 5 minute. Cald nu inseamna 70°C, ci ca intre capsula tranzistorului si metalul radiatorului ai un echilibru termic.

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