Re: option ROM into a 3032

From: Gerrit Heitsch <>
Date: Fri, 29 Sep 2017 08:09:52 +0200
Message-ID: <>
On 09/28/2017 11:28 PM, Ethan Dicks wrote:
> On Thu, Sep 28, 2017 at 1:14 PM, Francesco Messineo
> <> wrote:
>>> it's every 8 chars. Now I first have to replace the UD9 socket...
> Those sockets are not high quality, so that's also a good call.  I
> replaced all of them in the 3032 I got as a teenager.
>> turns out the "every 8 chars" flickering was a bad UF8 (MOS 2114 variant).
>> UF7 (the twin MOS 2114) had also a few bad cells (3 that I could
>> observe using pettester.bin image).
> Not surprising.  Most vintage stuff with 2114s, that's the first thing
> I look at when they fail oddly.

If you can get them, LC3514 from SANYO are a dropin replacement for a 
2114. They're CMOS too, so you save some power. Otherwise, you can hack 
in a 6116, but that's ugly.


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Received on 2017-09-29 07:00:02

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