Sinclair ZX80 / ZX81 / Z88 Forums

She's a little fluxy and needs a clean. But I get a measurment of 0.7ohm between the two orange spots - according to the schematic I have they never really even come close.

Hi all I have an issue 3 here that I have been working on, initially the 7805, TR4, TR5 and a hand full of electrolytics were done for. Having replaced all of those I was faced with an apparent lower ram issue. So that was all replaced, but still no dice. I did some probing around and noticed that I...