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briwayjones

Asteroids jumpy screen normal?

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I never really played Asteroids as a kid. I recently got three copies of Asteroids. On all of them while playing the screen jumps up and down some, which is distracting. No other game does this that I've seen. Is that normal for Asteroids? I guess since all three copies do it than the answer is that it is? I'm just a bit surprised they released the game like that.

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I don't think it is normal. It doesn't jump in emulation. And I don't recall it happening when I had real hardware.. So..

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By chance are you using a modern TV? They don't always play well with the older consoles.

 

I'm playing on a regular definition 4:3 CRT.

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I notice Asteroids jumps for about half a second when I first turn it on. Other than that it should be a steady image.

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What size screens does everyone play on? My TV is a 32". I wonder if it's not really noticeable on smaller screens and is noticeable because it's a larger TV?

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I used to have a 28" CRT, but I never noticed such jumps. But Asteroid doesn't create a perfect vertical sync signal of at least three scan lines. Instead the first scanline is a bit shorter. Some TVs are very sensitive here.

 

Do you have a Harmony cart or something similar? Attached is a NTSC ROM that should fix your problem.

 

Here is a thread that talks about the problem in more detail.

Asteroids (VSYNC fixed).bin

Edited by Thomas Jentzsch
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Do you have a Harmony cart or something similar? Attached is a NTSC ROM that should fix your problem.

 

 

 

No Harmony cart. :( But I got the answer, it's just the way it is. At least on this TV. Thanks guys!

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