MacinPosh
Active member
I recently brought my Lisa 2/5 back out of the cupboard to have a tinker during lockdown.
Unfortunately after a few minutes the contrast goes very dark and the image starts to shrink on the right hand side.
I haven't dared to leave it on long enough for something to go bang...
The BU406 is quite hot, but probably within normal limits.
Any ideas would be much appreciated :lisa2:
I've attached the video board schematic for reference.
Unfortunately after a few minutes the contrast goes very dark and the image starts to shrink on the right hand side.
I haven't dared to leave it on long enough for something to go bang...
The BU406 is quite hot, but probably within normal limits.
Any ideas would be much appreciated :lisa2:
I've attached the video board schematic for reference.