Hi,
I have been out to this one a couple of times in the last 6-7 months for the reported fault of it being completely dead.
On inspection I could hear an audible beep when turning the rotary selector to various programs, but the display had no life.
I have checked all connections and all seem fine. No visible burn marks on the boards, but on both occasions it has started working after I had plugged it back in.
I know some of the earlier models the selector was prone to failing, but not sure if this was still the case, or is it more likely to be the circuit board?.
Thanks.
Merv