Thanks, I’ll try that.
Someone also sent me a link to this - https://www.youtube.com/watch?v=RyspNW3G-yE
Which is basically rubbing with a cotton bud, I wonder if the friction causes enough localised heat to do a similar thing? I tried rubbing my screen with a cotton bud but it only seems to have redistributed the splodges, not got rid of them.
after a 90 min session at 85C, then a 90 min session at 95C:
All that seems to have happened so far is the blotches have coalesced 
I baked the whole assembly - there are 8 x 3.3uF 50V electrolytics on the PCB - if the baking fixes the screen they’ll definitely need replacing.
Hmm. I wouldn’t go any hotter, but it might be worth one or two more cycles? Comparing photos will tell you whether it’s making progress in the right direction.
Is it a bit smaller? It looks like it might be…
I’d say so, as well. But not as much that it would be really encouraging…
Last week I was on a work trip in Central London and couldn’t resist visiting Psion’s old London HQ…
Some updates on the emulation effort:
