ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hello there,
since we last spoke, the family has grown (considerably). I picked up a beautiful Beomaster 3000 a pair of Beovox S60 and yesterday I found a pair of S75 and a Beovox 1900-2 at a bargain price. The speakers are in perfect condition with the stands !
Anyway, the 1900 was sold "as is" and I heard a huge hum when I tried it. It is on both speakers and is affected by the volume and bass/treble buttons. I have noticed that it goes completely away when I slightly touch the standby button. The "T" lights off, the volume lights are still on and I am able to listen to the tape input without any disturbances.
So far, I have checked for cracked solder joints and I have adjusted the idle current (11.9 mV on both side) and the 15V PSU (15V on TP15 and 15.2V on TP16) and nothing has changed.
So I was wondering if you had any ideas !
Best regards.
Bonjour,
Etant en Region Parisienne je peux, si vous le désirez, jeter un coup d'oeil sur votre 1900 et donner un avis. Le problème évoqué est bien souvent du aux condensateurs à changer. Il y en a une "myriade" une soixantaine environ et cela peut être réalisé par tout un chacun ayant déjà une bonne habileté à dessouder et souder des composants.
Cordialement
Alain