FAQ • Search • Login
It is currently Tue Dec 11, 2018 6:38 am

View unanswered posts | View active topics


Board index » PAiA Jabber

All times are UTC - 6 hours [ DST ]



Post new topic Reply to topic  Page 2 of 2
  [ 11 posts ]  Go to page Previous  1, 2
Print view Previous topic | Next topic 
 2720 Power supply - replaced capacitors, still hums. 
Author Message
toneman

Joined: Thu Sep 24, 2009 2:14 pm
Posts: 90
Post Re: 2720 Power supply - replaced capacitors, still hums.
+18V "modulating". Too vague. Modulating at what frequency? 60Hz? Bad filter capacitor, or too much current being drawn or both. Modulating at another frequency (in audio range)? Bad wiring (crosstalk) allowing (an) audio signal to be superimposed on the pwr rail. afn 8-)

_________________
IF U THINK U GOT A GOOD DEAL....U DID!!

Thu Jan 09, 2014 7:37 pm
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 2 of 2
  [ 11 posts ]  Go to page Previous  1, 2

Board index » PAiA Jabber

All times are UTC - 6 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © phpBB Group.
Theme designed by Vjacheslav Trushkin , adapted for PAIA by Illumimedia Design Studios
./cache/ is NOT writable.