PSN-L Email List Message
Subject: GVA down with A/D hardware troubles
From: "Geoffrey" gmvoeth@...........
Date: Wed, 15 Sep 2010 06:21:45 +0000
Hello PSN;
My A/D converter is showing terrible internal noise even with no connections.
Random spikes in magnitude of like +/- 7 or 14 counts no matter what the load or
power source. I have watched this noise increase slowly over the years and
have no idea except possibly bad capacitors on the A/D board.
I have researched the schematic and find differences in
MAX187 specs and what they built.
There are areas where I think Electrolytics should not have been used.
I may try to change them just to see if I'm right..
Will be down until its fixed.
Don't Hold Your breath, Id hate to see a lot of purple faces out there.
Best regards,
geoff
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