Re: Star Wars shaky video

From: peter jones <highwayman2000_at_mail.ru>
Date: Sat Jul 08 2006 - 22:49:07 EDT

-----Original Message-----
From: "simon" <simonjhanlon@btopenworld.com>
To: <vectorlist@vectorlist.org>
Date: Sat, 8 Jul 2006 19:36:41 +0100
Subject: VECTOR: Star Wars shaky video

> Hi Guys
> I have been repairing a Star wars pcb that I bought off ebay. I dead so I removed the avg board and self test started to work. I checked the avg board and found some damaged traces, repaired them and the board now passes all test and plays fine except the video is shaky. In self test you can see small steps in the vertical lines on the grid screen. I guess its a bad cap somewhere in the Y section but I can't find it. Has anyone had this fault before? I have checked all the caps have both legs still intact, no noise on the +15 or -15 lines.
>

just ot add, if the steps are scattered or moving then it may be caps, but if they are evenly spaced then you better check the dacs & there buffers.

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Sat Jul 8 22:49:11 2006

This archive was generated by hypermail 2.1.8 : Sun Jul 09 2006 - 00:50:00 EDT