Re: Asteroids graphics in one corner

Dan Todd wrote:
>
> I've researched as much as I could on the Asteroids repair logs and
> such and never saw anything like this. Hopefully someone here could
>
> Save me some time.
>
> I have an asteroids board where all the graphics are showing up in the
> lower right portion of the screen. The graphics are not all perfect but
>
> everything is recognizable. Any idea where to start looking? I'm
> going to replace the 4016's I'm just waiting on sockets to come in.
>
> Just hoping someone may have run into this before.
>
> Thanks,
>
> Dan
>

I'd check for cracked solder connections for the Molex pin connectors on
the monitor mother board before I went to replacing anything...two
breaks would cause this.

Are the graphics showing the entire game, or just the quadrant? If the
entire game (with some squishing) then I have no obvious clues.

If only the quadrant is showing then this is either a missing voltage on
the MPU or a failed voltage (1st cracked trace) and probably a
disconnected transistor (2nd cracked trace) on the monitor.

John :-#)#

-- 
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
                 www.flippers.com 
"Old pinballers never die, they just flip out"
---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com