Hi
I believe this post does come under the requirements of Professional Test Equipment design.
I've had this elderly Sun Gas Analyser?unused and?gathering dust for quite a while.?
After switching on the unit, the display indicates it's running an Initialisation routine that stops after some 54 seconds indicating a ROM failure.
I've verified that the four 1Mbit EPROMS have checksums which annoyingly agree with the labels on the devices.? There are also 3 programmable 0.3" DIP devices which I can't check yet without making some sort of adaptor for my Programmer.? What they do is anybody's guess.
It's a pretty complicated beast which clearly is partly alive. A long shot I know, but does anyone have any circuit or other info on this unit. Any help would be greatly appreciated as I'll be in need of it soon for another home construction project.
I posted this on the Vintage Radio Forum a few days ago but so far nothing has been of help.
Thanks
Denis?
