Troubleshooting a 286.. oscope level!

tony duell ard at
Sun Oct 4 01:28:18 CDT 2015

>  might be able to get hold of the bios, but I'm worried about the 3rd

Remember the BIOS might have been specifically modified for that 
machine. Things like internal/external video selection are not going
to be in a generic desktop mchine BIOS

> EPROM. It sits in the middle of a bunch of Yamaha branded chips. The BIOS

That may well be the display character generator. In which case if it contains
_something_ you will get a display.


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