26 Feb
2022
26 Feb
'22
1:49 p.m.
On 2022-02-26 16:21, Tony Duell via cctalk wrote:
On Sat, Feb 26, 2022 at 5:19 PM js--- via cctalk
<cctalk at classiccmp.org> wrote:
If no one else steps up I have more that one programmer that can handle
8748, I probably have a few 8748s as well.
Paul.
As the chances of success are highly
improbable, looks like I'm SOL on this
particular motherboard.
My bench is rather full at the moment and will be for a
few more weeks...
But if you get no other help and you can wait a bit, I believe one of
my old EPROM programmers can read the 8048/8748 with the right
adaptor, and the schematic of that is in the manual. I also have a
working (I hope) HP9915. So I could have a go at making said adaptor,
extracting the 8048 from my HP9915, and readng it out. You would then
have to find somebody who could program the ROM image into an 8748.
-tony