From: Marko Mäkelä <>
Date: Mon, 30 Jan 2012 09:01:51 +0200
Message-ID: <20120130070151.GA3139@x60s>
On Sun, Jan 29, 2012 at 04:43:51PM -0500, Ed Johnson wrote:
>I checked the fuse inside. It was good.
>The board is a PCB ASSY #252311 REV 3
>I has a very sharp clear video picture. Better than the older bread box 
>version I tested the power supply with.
>Any other ideas?

Could the SID chip be damaged? Over 20 years ago, I damaged a SID chip 
in an old-style C64 (+12V VIC and SID) by hot-plugging the audio output 
to a stereo receiver that was also hooked to an antenna amplifier that 
may have been powered from a different mains voltage phase. This could 
have caused a ground current.  I cannot remember clearly, but I think 
that the audio was very quiet after the incident. Replacing the SID chip 
cured it.


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Received on 2012-01-30 08:00:04

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