11 Jan 2010, 09:11
Yes, I agree.
Clean all the green stuff away, and you might be lucky.
The other side of the board where the green stuff is, is where the 1st and 2nd digit driver transistors are. These are probably being shorted by more green oxidization.
You may have to replace these transistors, but that's not the end of the world.
Rgds,
Andrew.