Questions regarding horizontal or vertical collapse

alejandromad

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Questions regarding horizontal or vertical collapse

Greetings.

I was fortunate enough to find an Atari Video Pinball recently and, after giving it a visual inspection, I plugged it in.

What I saw was a thin line of video running from the top of the display down to the bottom... in the middle of the screen.

I could see the ball when I activated the plunger, and I there was movement when I used the flippers ... there were also game sounds, etc. so I think the board is working fine.

My questions...

1. The monitor is mounted vertically so a line going down the center from top to bottom means the HORIZONTAL deflection is gone... yes?

2. I think the monitor is the original WG 22V1001 (see my crappy attached picture). Where can I get the components to rebuild this monitor? My google-fu seems to be ineffectual when I search for it.

Thanks!
 

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Last edited:
Greetings.

I was fortunate enough to find an Atari Video Pinball recently and, after giving it a visual inspection, I plugged it in.

What I saw was a thin line of video running from the top of the display down to the bottom... in the middle of the screen.

I could see the ball when I activated the plunger, and I there was movement when I used the flippers ... there were also game sounds, etc. so I think the board is working fine.

My questions...

1. The monitor is mounted vertically so a line going down the center from top to bottom means the HORIZONTAL deflection is gone... yes?

2. I think the monitor is the original WG 22V1001 (see my crappy attached picture). Where can I get the components to rebuild this monitor? My google-fu seems to be ineffectual when I search for it.

Thanks!

Orientations on monitors are always determined with the monitor in a horizontal state, so in your case, if your monitor was laid on its side, you would have a line stretching all the way across from left to right. That tells you that you DO in fact have horizontal deflection, since the image is being appropriately stretched from left to right. What you don't have is any deflection stretching the image from top to bottom. Thus, as jigz has declared, you do not have any vertical deflection.

Have you checked the yoke input pins to make sure there's no broken solder joints?
 
Vertical collapse is what you have going on

OK... I see. Vertical because it collapsed in the vertical dimension (as per the CRT - NOT it's orientation in the cabinet).

So... I will pull the chassis and check/reflow all the solder joints and try it again.

Any idea if there is a cap kit available for it... or will another one work (like for the 19" version)... or do I have to make a list and buy stuff individually?

Thanks!
 

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Have you checked the yoke input pins to make sure there's no broken solder joints?

Haven't checked anything yet. Picked it up at 7 PM and had to be home by 9 so there was no time to do anything but a cursory power up.

I will go over it but I'd still like to rebuild it. I am sure it has been sitting for many years.
 
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