Author: Steve B
Date: 18:33:07 09/05/05
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Hi Bill; > >I would think if the problem were traced to a defective RAM memory chip or the >CPU, the RAM memory chip should be selected for replacement. RAM chips should be >more plentiful on the spare parts market. The CPU on the other hand has more >pins and may be much more difficult to find and replace. If it is a ROM memory >chip or PAL chip thats defective then the owner is screwed. I always first focus >on the power supply. Back in past most chess computers ran on 5 volts. However >as the computers aged sometimes the chips in them prefer to run at a slightly >lower or slightly higer voltage than the 5.0 volts nominal. Also temperature can >have an effect. Chill the unit down to 50 degrees F. to see it it will suddenly >work. Also a slight elevation it temperature like 90 deg F. might work get it to >work. > >Just my 2 cents thanks very much with your permission i would like to post your analysis on Kurts Site where the question was posted or you can post it yourself.. here is the thread.. http://f27.parsimony.net/forum67615/messages/2533.htm Best Steve
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