(FIXED) Out Zone missing cap and I don't know how to identify it. (pics included)

[Paranoid_Andy]

Hello everyone,

Now that I'm a bit more confident in my soldering skills, big thanks to @twistedsymphony for help with that. I've decided to try repairing some of my stuff.

I thought I'd start with Out Zone. When the game is running, I'm getting a lot of intermittent visual noise on the screen and that noise almost seems to be linked to the volume of the audio.

There is a cap that's outright missing from the board and it's near the audio area(I think) and I'm guessing maybe that could be what's causing the interference on the video line.

Anyway, I would like to replace the cap, but I don't know what the cap actually is because it was missing already when I got the PCB.

Does anybody happen to know what this cap is? Also, if you have any thoughts on what could be causing the issue feel free to let me know.

Thank you for any help at all!

 

[Astro X]

470µF 16V

 

[Paranoid_Andy]

Hey @Astro X ,

Thank you very much! That's very helpful.

I'll see if replacing that fixes it.

I was wondering, how did you know what cap it is?

 

[Astro X]

I also own this pcb ..........

 

[Paranoid_Andy]

Wooooo!!! @Astro X You really helped me!!

I added the cap and tried it out and the video quality looks fantastic! No visual noise at all.

Thank you so much! I was worried my game might have a serious problem. My first attempt at fixing an arcade game and it went really well

Why can't fixing everything be this easy lol.

Anyway, thank you again! What a good day