As I have checked and quadruple checked all tracks, traces and connections - and all are OK, I am assuming it's component failure..!? I had been suspecting the 8048 but after confirming the reset function is working I am hoping that it is some other component.
Vref + & - ... pins 14 & 15 of the A/D converter both read millivolts... I'm thinking this might be a clue...?
By the way would anyone kn ow what I should be seeing on TO... pin 1 of the 8048 ...?
Cheers,
Tom