-----Original Message-----
From: "Mark Hooks" <markhooks@earthlink.net>
To: <vectorlist@vectorlist.org>
Date: Wed, 8 Jun 2005 21:19:36 -0400
Subject: Re: VECTOR: Star Wars CPU D3 short
> Matt,
>
> Thanks for the suggestions. The short reads 1.1 to 1.2 ohms between D3 and the ground buss. It seems to be the same at most any location. I even tried measuring differences in voltage with the board running but had no success narrowing it down. I also tried the hot chip search and everything is running cool except for the vector PROMs. I've tested them in a good board so I know that they are not the problem.
>
> Unless someone has some other ideas I'm going to cut the D3 line on each chip until I track down which one is causing the short. I just hope there isn't some hidden solder short because clipping connections won't find that.
>
replace the data buffer between the bus and cpu, it fixes a lot of games.
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Received on Thu Jun 9 06:07:37 2005
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