Thanks to all for your help and advice, It's great to know there is help out there for new owners such as myself. I now understand how to fix the fault but need some advice on removing the unit from the car
Nigel, go back and re-read the thread in the link given above. I gave some further info on removal of the SID yesterday.
I am also happy to report that my SID has come back a good bit since the third repair effort. It's nto quite as good as it was, but I can read most of it now. Still no clock though. It seems that certain rows of pixels are more stubborn than others.