Munchkin Posted April 28, 2005 Share Posted April 28, 2005 Picked up an 800XL on Ebay....keyboard seems totally dead. Everything else works fine...games..no problem....even function keys on right work. Any suggestions as to what the problem is. Quote Link to comment Share on other sites More sharing options...
Gregory DG Posted April 28, 2005 Share Posted April 28, 2005 Check the ribbon connector inside. They can get scratched which will strip off some of the conductive material. Start with that and go from there. Quote Link to comment Share on other sites More sharing options...
Munchkin Posted April 28, 2005 Author Share Posted April 28, 2005 Thanks for the info...I did look at the strip and it looked ok with my untrained eye...someone else I know suggested it may be the 4051 chips need replacing or POKEY chip... Quote Link to comment Share on other sites More sharing options...
mr-atari Posted April 28, 2005 Share Posted April 28, 2005 First try the (2) 4051 chips. They are used as isolator to the pokey-chip. If that doesn't work, the pokey could be bad. Check the paddle(0) value in basic with paddle attached. If the value doesn't make sense, your pokey is (almost) dead. Happened only once at my place in a 5200. I thought the joysticks were messed-up, but instead it was the pokey-chip. Cheers, Sijmen. Quote Link to comment Share on other sites More sharing options...
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