Artifacts after AV-modding my 2600

[chaozz]

Yesterday I modded my Atari 2600 to add Composite video.

My Atari is a woody 4-switch PAL-version.

 

I used this mod: http://www.ebay.com/itm/Atari-2600-Composite-AV-Video-DIY-Upgrade-KIT-Board-Preassembled-/381321972595

and these instructions: http://www.vintagegamingandmore.com/guides/mods/

 

Installation went smooth as expected and after it was done, I popped in Pole Position and it looked great!

 

But a few games, for example Ms. Pacman, show short horizontal lines on the left hand side of the screen. I've made a photo of how it looks: http://1drv.ms/1l8SZLx

 

Can anyone tell me why this is occurring?

[Cambouis de l'Atari]

Looks like the typical HMOVE artifact to me... are you new to the 2600 ?

This is normal, they should be there whatever video output you use (even in an emulator) :

 

Edited January 14, 2016 by Cambouis de l'Atari

[chaozz]

I am **VERY** new to Atari. Thank you for clearing this!

[Cambouis de l'Atari]

This is very surprising to get a "newbie" question from someone who directly dives into modding

 

Actually most games show these lines, but often they are hidden in the black background.

[chaozz]

This is very surprising to get a "newbie" question from someone who directly dives into modding

 

Actually most games show these lines, but often they are hidden in the black background.

 

I am not new to modding, perhaps that's it.

 

I did a mod to a pong console not too long ago, and that was very similar to this mod:

Edited January 14, 2016 by chaozz