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   sci.electronics.repair      Fixing electronic equipment      124,944 messages   

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   Message 124,738 of 124,944   
   David LaRue to micky   
   Re: Broken DVDR   
   23 Jul 25 03:41:17   
   
   XPost: alt.home.repair   
   From: huey.dll@tampabay.rr.com   
      
   micky  wrote in   
   news:davv7ktveur5bjavpfjtasv4po0hlhhu0j@4ax.com:   
      
   > I don't think I posted abou this problem to SER before because it was   
   > just a good story the lsst time but the new chapter starts at the   
   > asterisks***  Giving the old chapter for the newly added ng.   
   >   
   > Old chapter.  Bought a Kenwood DVDR, 3875 iirc with Hardrive about 2010.   
   > Used it heavily, recording and watching abougt 3 hours each a day, plus   
   > a lot of live watching, until 2024 until it broke completely, wouldn't   
   > light up.   
   >   
   > Bought another one just like it on Ebay, then opened the broken one.   
   > Thought it was the power supply of course.  Didn't have a meter yet, but   
   > looking and found a button, a little block button pointing up from a   
   > 1/4" square  (with rivets on each corner).  Just like Alice in   
   > Wonderland or Dorothy on her trip to Oz, I was compelled to push the   
   > button, and the DVDR lit up and seemed to work completely. nothing   
   > mentioned about it in the owners manual or the wiring diagram or the   
   > Repair manual for a similar device by Kenwood.  The button was labeled   
   > Reset Sw.  and it did.  I guess they keep these things secret for a   
   > reason.   
   >   
   > ***So I'd installed the "new" one and I've been recording and watching   
   > it for maybe 9 months when the picture and sound disappeared on what I   
   > was watching, and on every other channel at the same time.  Came back a   
   > few seconds later.  Repeated that a few times over the next day.  Then   
   > went blank and didn't come back except for a striped red and black   
   > screeen for a few seconds.  Then all black while the timer kept   
   > recording three times a day.  They were all black too.  (I could still   
   > play my prior recordigns and I have about 50 hours of them before I have   
   > to put back the original DVDR.)   
   >   
   > What does this indicate to you?  A failed part?  What kind of part?   A   
   > cold solder connection?   Do you think I can find it by looking?  Where   
   > a part is soldered in?   Or a broken trace?   Something else?   Do y ou   
   > think there is a second push-button for this situation?   
   >   
   > I don't remember if there is a separate tuner board, but I presume that   
   > is the place to look the most.  It has both analog and digital but I   
   > don't think I have analog to test it with.   
   >   
   > New chapter.  Then today, I forgot that it doesn't work and turned it on   
   > for the 5PM televison and it's been working fine for 30 minutes.  All   
   > stations of course.  Does that change what you said two paragraphs up?   
      
   May need cleaning.  Ants, bugs, love electronics and can short out things.   
   I regularly need to blow out my laptop to keep it running.  I bought it   
   second hand after a company used it for 6 years.  I'm going on year 16   
   which is a long time for a laptop that is used more like a desktop and   
   always on.  Very stable.   
      
   BTW, after cleaning let it sit for a while before turning it on if any   
   moisture was used to clean it.  Even a damp rag clens up well but will   
   short it all out if you power it on before it fully dries.   
      
   For smaller electronics and closed cases with ventilation holes sometimes a   
   can of air will do wonders.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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