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   comp.sys.atari.st      Discussion about 16 bit Atari micros      15,439 messages   

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   Message 13,650 of 15,439   
   Tom Tom to All   
   Odd Diag Cart Issue   
   12 Oct 08 14:12:46   
   
   From: sometomtom@tomtom.com   
      
   Anyone here know why a the TT030 diagnostic cart would refuse to boot up   
   when a 2MB ST RAM expansion board is plugged in?   
      
   I have a TT030 that I'm looking at.  When I first was working on it the   
   machine would just turn on with a grey screen (no Atari logo and memtest   
   bootup).  I eventually found that there was some corrosion built up on the   
   two FUNNEL chips in the machine.  After that the machine would successfully   
   boot.   
      
   Then I tried using the diagnostic hardware to put the machine thru an   
   overnight test to test it.  But I could never get the machine to boot up   
   with the diagnostic cart but it would boot up with the Terminal Emulator   
   cart.  I had installed a TT RAM expansion board and a ST RAM expansion board   
   so that the testing would exercise the expansion slots.  It wasn't until   
   yesterday that I discovered this weird issue with the expansion board.   
      
   I believe the machine was converted from a UK model (ROMs replaced with US   
   verison of TOS).  I'm wondering if there is anything else that would've   
   needed replacement/upgrade when converting from a UK model to a US model?   
      
   Regards,   
   Glenn   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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