On Sunday 31 August 2014 16:14:34 you wrote: > Hi, > > So if it is not the RAM, what could happen in the driver - probably UE9 or > UE10 here > http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/pet/univ/8032081 > -05.gif that causes this? Probably a slight delay in switching the line on > or off? Nope. Got it. It in fact was the RAM itself. Replaced the UE9 and UE10 74LS244 buffers to no avail, still not full memory. Then replaced the UA16 RAM - there you go, full memory! Cheers André Message was sent through the cbm-hackers mailing listReceived on 2014-08-31 16:00:03
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