> My fear is that one of the PALs has altered itself from tin-whisker > migration (fuse regrowth) :(
I've finally looked at the printset for the VT240 and I must be missing something.... The only PALs I can find are the 'logic units' in the video memory updating circuitry. That circuitry is pretty much the same as .... the Rainbow colour graphics board and I suspect the PAL logic is much the same too. I have the Rainbow's PAL equations if you need them but I doubt that's the problem. -tony
