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    Interference/Noise on Blue channel

    Hi Mukuro_W, this is a MS8-29FSG chassis. Do you mind to give more details Tika ?
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    Interference/Noise on Blue channel

    Yeah, the Mister FPGA is powered by a Jamma adapter and yes I have a bootleg Strikers 1945 board, and upon closer inspection I can see the same dots (while hard to spot) in the screen. Could the PSU be introducing some high frequency noise or something through the video cables?
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    Interference/Noise on Blue channel

    Oh, I'm using a Mister FPGA using the SNES core. This is the power supply I have in my Astro City
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    Interference/Noise on Blue channel

    Oh you're right, it;s not just the blue, it's all over the place. I'm using the 240p test suite and using the IRE 020 , I can see it takes way more space than that. any idea what could this be? A bad cap maybe or some diodes not workking ?
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    Interference/Noise on Blue channel

    Hi guys, I'm seeing blue dots and waves in the blue channel, sort of like interference or noise, I've created this short to showcase the effect, View: https://youtube.com/shorts/4JL_Ir4vjDs?feature=share and here's a couple of pictures
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    Monitor Convergence issues - Sega Astro City

    Yeah, I'm guessing the yoke is tilted sideways, and I was reluctanct to move it, because it's glued, but seems like I'll have to try to remove the glue and move a bit. Thanks a lot guys, I'll be posting a couple more entries in the forum because this tube has a few issues, like some...
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    Monitor Convergence issues - Sega Astro City

    Hi guys, I was able to take a couple of pictures of the yoke, and all the magnets seem to be in place. What do you think?
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    Monitor Convergence issues - Sega Astro City

    Hey guys, thanks a lot for many responses! About the magnet on the yoke.. how can I tell if I missing one as nem suggested? I'm saying this because the convergence looks good on the middle of the screen already.
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    Monitor Convergence issues - Sega Astro City

    Thanks a lot, at some point the blue on that corner turned into magenta, and I've got scared, is that part of the process?
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    Monitor Convergence issues - Sega Astro City

    Thanks for the quick reply, I did play with the rings, and when I could get something better on that area, the center got broken, so I decided to first make the pixels in the center of the screen look decent enough and then work my way through the corner convergence , but no luck here. Anyway ...
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    Monitor Convergence issues - Sega Astro City

    Hi all, I've recently purchased a Sega Astro City with bad convergence and geometry issues. While I was able to sort the geometry, the convergence is terrible, to the point where even after inserting small metal plates in the back of the tube (convergence strips I guess these are called?) the...
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    Nanao MS8-26SG Green color "noise", what to check? [solved]

    Hi guys, I'm having kind of "interference" on the green color, like small dots or waves .. don't know how to better describe it. Do you think this could be a diode that's letting some current go through and the zener diodes could be the ones to blame? thanks!
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