[Gmecm] Erasing EPROMs

[William Lucke]

I finally tested out my modified EPROM eraser. It's a Spectroline PE-140. 
I've modified it with a safety override switch to make it turn on with the 
tray not in place. That way I can insert chips without removing them from 
their carriers.
I know it turns on, and a I know that it lights up. I put a piece of paper 
over the opening and saw blue glow through it. This shouldn't be bad, right?

Anyway, I have a chip from an OBD-I Cadillac Northstar. It has two 27C512 
EPROMs. I removed the ESC board and the stickers over the erase windows and 
put them into my eraser for 30 minutes. They did not erase. What do I need 
to do to these chips to get them to erase?

Ok, the little circuit board that is on the carrier along with the chips... 
what exactly is that? I've heard it referred to in various ways, but what 
is the proper name for it and what is its function?
What is the proper term for the entire module... carrier, chips and the 
aforementioned board?


Will


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