Need help with an arcade monitor - waves

mathewbeall

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Donor 6 years: 2017, 2021-2025
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Hi All - first post here!

I got a Street Fighter 2 (Turbo) cabinet that I have been restoring and it's been a lot of fun!

I bought some additional arcade boards on ebay and have been messing around with them and ran into a weird issue.

I have put SF2 (the original board in the cabinet) and Soul Calibur in and hooked it up with no issues. Over the weekend I put in "Marvel vs. Capcom" on the CPS2 hardware and while everything works just fine, the monitor is very "wavy" - and it wasn't this way on the previous two boards.

I think the CPS2 hardware is fine as I have a 20" CGA CRT at home and it looks fine on that (no waviness).

I looked at the chassis this morning on the 25" tube and it's a WEI-YA and looks fairly new - I was expecting/hoping that the chassis board would be old and I could do a cap kit and get it working as my google searches said that waviness was usually a cap issue.

But the real question is - is it common to see video issues like this vary board to board, and what steps can I take to figure out why the CPS2 hardware (tried a different A/B board as well - same result) is giving me wavy video?!

Thanks in advance!

Matt
 
While it's weird that it works fine with 2 boards and not with Marvel vs. Capcom (which makes me think maybe it's not a monitor issue), Wei-Ya chassis are known for being pieces of junk.
 
I have a WG 7194 tube that I am going to pair up with a rebuilt WG chassis - and hope that the tube is good.

If that works I will drop that 25" into the cabinet and see if there is still the issue.

Matt
 
Well - it doesn't *seem* like a sync issue - as the screen isn't flipping or anything - it's just a "wave" motion across parts of the screen. I can try to take a video if that would help.

Matt
 
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