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Old 3rd Nov 2017, 6:01 pm   #23
acollins22
Pentode
 
Join Date: Oct 2010
Location: Melton Mowbray, Leicestershire, UK.
Posts: 156
Default Re: Nascom repair - Looking for clues please

Thanks for the interest folks it's great to get help and advice.

I've been over the board testing the 74 series chips with a tester and they all turned out OK. My tester can't do 74LS163s though so I rotated those around, still no success. I did the same with the 81 series buffers. So I've come to a halt for a while. Everything is fine but it's still not working.

Cheers,

Andy.
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