star wars picture....what did she do!!!

vader1979

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so i fixed my star wars ur today...got new arII board installed and everything works great. installed new spare pcb. picture was a little too big...so had wife watch screen while i adjusted. after she said it was good...ya...totally screwed it up...after about half hour...this is what i got. what the hell do i do now??

ps...the picture looked great besides being a little too big before i started adjusting. also...before i started adjusting...there was a couple weird lines that would come from the upper left of the S in star wars and upper right in R....like lines sticking out of the upper tops. plus the tie fighters also had a small straight line coming out of the tops of the wings as well. but before i adjusted the wave screen was fine and when death star exploded it exploded in a perfect circle. now when it explodes it flattens out on the sides like a balloon inside a box. like i said...i adjusted all six pots every way i could and could not get back to normal.
 

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pic of pot settings

here is a pic of the current location of the pot switches if this matters....
 

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your star wars looks to be running on a wells monitor and not the amp... To fix the hourglass issue you need a display corrector..

http://www.arcadeshop.com/wgmdc/wgmdc.htm


you probably messed with the bip adjustements. Thats why the vectors are drawing wrong.. about half way down on this site is a good pic of the pots. You want to mess with the back 2. (The 2 not in your pic)

http://www.aaarpinball.com/ASW/ASW.htm

Next time have the wife hold a mirror for you so you can see what the adjustements are doing..
 
Next time have the wife hold a mirror for you so you can see what the adjustements are doing..

That was my suggestion when I talked to him yesterday.

FYI - you will never get perfect geometry with your game using the Wells Gardner 6100 monitor. Star Wars was designed around the Amplifone monitor, and the picture suffers a bit when you use the Wells. You can make some slight adjustments, but you'll never remove the pincusion.

You need an Amplifone. But then again, don't we all? ;)
 
That zap across the screen, hmmm, I have read it comes from a bad Big blue, BUT I have personally had it happen, it was a bad deflection yoke causing it.

Try the geometry adjustments first
 
Ok guys...adjusted the bip pots...got linear back to normal....used a mirror! Everything looks good. Thanks for the info. Didn't even know those two pots were over there...they blended in pretty good! Now I can finally just enjoy my game...!
 
FYI - you will never get perfect geometry with your game using the Wells Gardner 6100 monitor. Star Wars was designed around the Amplifone monitor, and the picture suffers a bit when you use the Wells. You can make some slight adjustments, but you'll never remove the pincusion.

Yep, that's the theoretical story, but I have never seen an 25" Amplifone on a SW that doesn't have the bowing inwards on the sides just like the WG's.

I believe that the so called "correction of pincushion in the yoke" is a lot of baloney and although it may have been intended by Atari at one point, it was never actually done. I think Atari just thought "what the hell, the players will never notice" and left it that way.

We need a corrector PCB and someone has been promising one for years..........
 
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and replace big blue!! congrats on getting it working again. Get the display corrector it will help..

Is there any reason why you advice replacing the big blue. I'm in this hobby for about 7 years now, and what I have learned is that the bigger the cap, the less likely it is to fail. I have measured better values on 30 year old caps then on some new ones with the same value. Of course I've seen plenty of bad one's but it is always the small one's.

I haven't seen as many Big Blue's as smalltownguy but still quite a few, and none was bad.
You don't even need an ESR meter, just put a good DVM in AC Voltage measurement over the big blue and see what you get...the closer to 0 the better it is....

Something else, where do you get that display corrector you speak off ?
 
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