Vertical lines in Atari 2600 RGB Mod

[diablonet]

Hello, I just installed the Atari 2600 RGB from Tim Worthington on my 4 button system, I did the installation as the manual (also the SCART cable from Tim Shop), but I am getting vertical jail bars as the attached pictures, As far now I replaced: TIA / RIOT / CPU and capacitors, also the crystal has no extension wire, it is directly connected to the board and still get those lines.

 

I am using Atari 2600 RGB + Tim SCART cable ----> OSSC

Any suggestion how to avoid those vertical lines? thank you in advance.

Edited December 11, 2018 by diablonet

[+-^CrossBow^-]

Question?

 

Have you seen how it looks if you bring the aspect ration back to normal 4:3 instead of stretched?

 

And...are you putting the RF shield back on? I realize with all the extra wire it won't fit perfect, but I always try and keep the RF shield in place when possible and just cut out openings in the shield for my wiring to pass through.

 

WAIT! I just noticed you are using a DC-DC converter in place of the original 7805? Try putting the 7805 back in there just for grins. My quess is that the RGB board is picking up the Hi-Freqs from the switching in the converter. Using he RF shield back on it to "shield" the RGB board from this would go a long way to help. Also try and route the video wires as far from the power section as you can on not just this but really any AV mod in a system.

[diablonet]

Hello, thank you for replying, I will try the 4:3 fit, the RF shield is on, I replaced the DC-DC converter because it came with the RGB kit, I am worried if I install the RGB board without that DC-DC included converter I may blow something, also I can try to route the wires away from the power section, I will post soon.

[+-^CrossBow^-]

It likely came with the RGB kit because of the extra current draw needed for this. I hadn't thought of that, but surprised that a 2amp output 7805 wasn't provided instead just to cover the bases.

[diablonet]

Hello CrossBow problem found and solved, it turns out that I connected the RGB wire "V" to "V" (composite on the board), instead of "V" to "CS#" on the board, that was causing the issue, now picture quality is perfect, thank you for everything!!

[john_q_atari]

It likely came with the RGB kit because of the extra current draw needed for this. I hadn't thought of that, but surprised that a 2amp output 7805 wasn't provided instead just to cover the bases.

 

I used a 1amp 7805 on my vader with the 2600rgb mod and added a heatsink and new thermal grease. I haven't had any problems so far.

Edited December 12, 2018 by john_q_atari