[Premium-Rx] RF-590 trouble shoot

[John Reed]

  ----- Original Message ----- 
  From: Ka9p at aol.com 
  To: premium-rx at ml.skirrow.org 
  Sent: Monday, May 30, 2005 7:32 PM
  Subject: [Premium-Rx] RF-590 trouble shoot

  I had an IC-R71 that acted this way once.  It turned out it was a trace on one of the PC boards that had a small break in it.  Pull out the filter board and examine the traces closely with magnification.  If you find one that goes to this filter with a small break, just bridge some solder across the break.  That should fix it.  While you have it out, you might reheat the filter connections also.

  John Reed


  Looking for some good advice.

  I acquired what looked like a slightly long in the tooth 590 orphan a few weeks ago, and it's perking along great now but for one small problem.

  On the self test, I infrequently get an "assembly 4 - fault 7" message - when that happens, the 6 kc filter is inop.  Many days it's fine, no rhyme or reason.  So I opened it up, and find with a slight pressure one way or the other on that filter, it drops in, but when I relax it, it drops out.

  Does this sound like a bad filter solder joint on the board, or a bad filter, or possibly the pressure on the board causing something else to make contact I should look for? (tho wiggling the other filters and A4 board causes no change). 

  I'm a bad enough radio mechanic with enough experience to know to ask first before I get crazy with the soldering pencil. :)

  Thanks for any advice.

  Scott 


------------------------------------------------------------------------------


  _______________________________________________

  Premium-Rx Mailing List
  To Post: premium-rx at ml.skirrow.org
  For Info: http://ml.islandnet.com/mailman/listinfo/premium-rx
  Visit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.qth.net/pipermail/premium-rx/attachments/20050531/c37e7d18/attachment.htm