13 Dec
2017
13 Dec
'17
7:32 a.m.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Mark G
Thomas via cctalk
Sent: 13 December 2017 14:09
To: CCtalk <cctalk at classiccmp.org>
Subject: EPROM baking
Hi,
I am working on several projects requiring 2708 and 2716 EPROMs, and am
finding some of my chips will not erase, and some will not take a program.
I've also learned more in the past week than I wanted to know about
repairing Data-I/O 29a/b programmers.
Any clues on resources for this. Mine seems to read but gives over current
warnings when I ask it to program ROMS..
I vaguely remember in the 1990s baking such EPROMs in
the oven, but I do
not remember temperature or time. I was surprised that Google didn't turn
up anything useful with this info.
I'm sure someone here will have some notes on EPROM baking.
Mark
--
Mark G. Thomas (Mark at Misty.com), KC3DRE
Dave Wade
G4UGM & EA7KAE