EPROM Eraser not erasing New EPROM

[Jason R. Haines]

I thought of one other thing. On one of our older erasers, the bulbs were
going bad and although they still turned on, they were dimmer than new. I am
not sure if the wavelength that erases the PROMs is visible to the human eye
or if they are just making the light visible so we can tell when the bulb is
on. You might try putting a new bulb(s) in the eraser (or test another chip
or in another eraser to isolate the problem).

Jason


----- Original Message -----
From: "93 Formula" <red93formula at hotmail.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, April 13, 2000 11:57 PM
Subject: Re: EPROM Eraser not erasing New EPROM


> And the saga (of the dim-whitted newbie) continues...
>
> Any other ideas?  I pulled the factory sticker off and lined up the hole
in
> the eprom with a whole in the dataerase, and set the timer on max (24
> minutes) 3 times (It wont run without the timer) It STILL hasnt erased it
> according to the pocket programmer. Damn, could it be that these newer GM
> chips are write once only? Or could I try something else. If nobody has
any
> other ideas, I may just have to try to erase my original 1993 chip
instead.
> They shouldnt call these memcals EPROMs if you cant write to them.
> Jeff.
>
>
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