ZX Speccy erratic behaviour
Posted: Sat Feb 09, 2019 4:45 pm
Hi all,
Recently bought a ZX Speccy off Ebay. Have got it going using a correct power supply, and seems to more or less work. Have successfully written and run a very basic BASIC program that prints a phrase over & over. Have taken it apart and done the composite video mod using capacitor.
However, it does seem to have this problem, of basically doing erratic things. It will type random keypresses on it's own now & again. Not that often but enough to be a problem. This seems to interfere with loading anything. Don't know what it could be. It seem to basically be a bit 'noisy' , to use an analogue electronics term. Any ideas?
Many thanks.
edit, forgot to add, it is 48k version. probably issue 3.
Recently bought a ZX Speccy off Ebay. Have got it going using a correct power supply, and seems to more or less work. Have successfully written and run a very basic BASIC program that prints a phrase over & over. Have taken it apart and done the composite video mod using capacitor.
However, it does seem to have this problem, of basically doing erratic things. It will type random keypresses on it's own now & again. Not that often but enough to be a problem. This seems to interfere with loading anything. Don't know what it could be. It seem to basically be a bit 'noisy' , to use an analogue electronics term. Any ideas?
Many thanks.
edit, forgot to add, it is 48k version. probably issue 3.