10 Jun
2005
10 Jun
'05
3 p.m.
From: "Ethan Dicks" <ethan.dicks at
gmail.com>
On 6/10/05, Dwight K. Elvey <dwight.elvey at amd.com> wrote:
Socket the 2732 with that pin hanging out of the socket. You can even
tie it to Vcc or GND with a jumper wire to either pin 12 or pin 24...
no need to mod the board, just the 2732.
-ethan
Hi
I'd stack two machine pin sockets, with jumpers and
pins removed, but that isn't what was said.
Dwight
If you are
willing to only use 1K it's easy, no changes are required to the
board:
I'm not sure how you would define removing a power supply lead
but I'd call that a change??
Dwight 
10 Jun
10 Jun
3:22 p.m.
From: "Dwight K. Elvey" <dwight.elvey at amd.com>
Sent: Friday, June 10, 2005 5:00 PM
The instructions I gave had no changes to the board:
"Start with a 24 pin socket and plug it into the PROM board leaving pins 19
& 21 hanging out, tie these to ground (pin 12 or any convenient spot)."
This merely uses a socket as a daughter card rewiring the connections needed
to have a 2732 act as a 2708 in read only mode.
The power leads (12V & -5V) on the PROM board are not removed, they are just
ignored.
The board stays original, the 2732 is not modified and just by removing the
modified stacked socket everything is restored. No matter what type of
collector you are this shouldn't ruffle any feathers, the board is made
operational with newer components without modifying a collectable card.
As I also pointed out using this routine you can replace a 2708 or better
with anything in the same family which includes Flash ROM's and EEPROM's.
For those unfamiliar the 2704/2708 pinout are the standard still used today
with only minor changes related to power supply and programming. These
"minor" changes make it easy to use newer parts for the read only portion,
even the programming can be handled with a little effort.
Randy
www.s100-manuals.com
From:
"Ethan Dicks" <ethan.dicks at gmail.com>
On 6/10/05, Dwight K. Elvey <dwight.elvey at amd.com> wrote:
Socket the 2732 with that pin hanging out of the socket. You can even
tie it to Vcc or GND with a jumper wire to either pin 12 or pin 24...
no need to mod the board, just the 2732.
-ethan
Hi
I'd stack two machine pin sockets, with jumpers and
pins removed, but that isn't what was said.
Dwight If you are
willing to only use 1K it's easy, no changes are required to
the
board:
I'm not sure how you would define removing a power supply lead
but I'd call that a change??
Dwight
7086
days inactive
7086
days old
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