Re: Friday Vector Trivia #001-006

Thanks for the follow-up.  I particularly enjoy reading about the diagnosis and repair of PCB problems.  Helps me understand common issues, as well as hone troubleshooting skills.

On PCB #2... I assume it wasn't "fully" dead, as all the logic should have worked fine with +5V.  However, the jacked +/-22 (and +12, and +/-15...) would have left it unable to generate and amplify audio or video output... so the only way you would have been able to tell it's "running" would have been by probing address/data lines.   Perhaps an unimportant distinction between "dead" and "vegatative state" (playing blind & deaf...)

Thanks again,
Darren

--- On Sun, 10/24/10, Jess Askey <jess@askey.org> wrote:

From: Jess Askey <jess@askey.org>
Subject: VECTOR: Friday Vector Trivia #001-006
To: vectorlist@vectorlist.org
Date: Sunday, October 24, 2010, 11:54 PM

 {font-size:10pt;}#yiv681789883 div.yiv681789883Section1 {}

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Received on Mon Oct 25 10:01:00 2010