From: tim@bristolnj.com   
      
   On 12/3/2010 11:00 AM, Rudy Williams wrote:   
   > Hello--   
   >   
   > I own an Akai GX-210D reel to reel unit and am experiencing some playback   
   > issues. I would like to know your opinion on if I need to take it in for   
   > repair, or if this is something I can address myself. (I am fairly handy and   
   > have some background in electronics, soldering, etc.)   
   >   
   > During forward playback, audio is heard from the left channel only (speakers   
   > or headphones). During reverse playback, audio is heard in the right channel   
   > only. With alcohol, I cleaned the heads, capstan, rollers, etc. Typically I   
   > mount the tape reel on the left spindle and the take up reel on the right   
   > spindle. If reverse where I mount the reels, the behavior is opposite.   
   >   
   > What are your thoughts?   
   >   
   > Rudy   
   >   
   >   
   >   
   >   
   Hello,   
      
   	Assuming that the heads are clean and undamaged, I'd have a look at the   
   very fragile wires that go to the back of each head.  After that, I'd   
   look for whatever switches the heads to the electronics for forward vs.   
   reverse play.  This could be a mechanical switch or a relay.   
      
   	Having a schematic diagram so that you can follow the signal path would   
   be helpful, but with patience you can trace things out.   
      
   Regards,   
   Tim Schwartz   
   Bristol Electronics   
      
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