20 Mar
2015
20 Mar
'15
4 p.m.
Yes. It needs a re-cap job. SE/30's are notorious for that apparently. We just had
that discussion on the Seattle RetroComp list.
check these out:
http://applefool.com/se30/images/img/2d9cbc05.png
https://wiki.68kmla.org/Capacitor_Replacement#Macintosh_SE.2F30_.28630-4198…
Hope this helps.
cheers
--
alex
----- Original Message -----
From: dave at 661.org
To: "cctalk" <cctalk at classiccmp.org>
Sent: Thursday, March 19, 2015 10:39:29 PM
Subject: Mac SE/30 making zipping and buzzing noises
I'm gradually restoring a Mac SE/30. Today I got a new PRAM battery and
installed it. There was no battery leakage, so I'm good there. The
machine seems to run just fine. The big problem now is that even though
nothing should be emitted from the speaker, I'm getting zips, buzzes, and
burbles from it depending on what the computer is doing at the time. I'm
quite sure the the sound circuitry is somehow picking up RF noise from the
system bus. What does this symptom indicate? Should I recap the whole
machine?