Hi, I have a zoll M series (12 lead, mono, pacing, sao2) that displays 'clock fault 12', looking through fault codes it indicates that I need to get the system board changed.

on a bit of a tight budget (charity equipment) so looking through certified OM refurbished parts and complete boards coming up at circa 2000 dollars (have a local EBME who will fit at cost as long as i do all the legwork and supply correct parts).

2 questions:

1) is it the whole system board that will need replacing? (if so, can anyone provide correct part no as there seem to be a few sub assesmblies involved)

2) does anyone know anyone in UK who is able to refurbish the board and how much am i looking at?