Quote:
Originally Posted by Slothie
Inside the RAM pack there should be a 22uF electrolytic across the supply rails. If this has gone bad then it wont be supressing all the noise generated by the 12v inverter circuit used to supply the DRAM chips. This is likely the source of your interference.
Schematic & info:
https://www.myprius.co.za/ZX81.htm
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Apologies if this is a daft question - but the piece refers to putting the diode in the video cable? It has an inner and an outer casing doesn't it? How would you go about that?