MVS MV-1A +5V mod for mono CRT audio

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/neogeo
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MVS MV-1A +5V mod for mono CRT audio

Post by /neogeo »

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[TD] I'm fairly new to hardware so forgive me If the answer to this seems very obvious.
So I have a MV-1A and the video works beautifully on my CRT but there's no audio, from what I can gather it's because I'm only giving the supergun +5V and the speakers require an separate +12V (lucky I didn't do this because from what I can gather this would have blown out my TV's speakers).
I'm looking at a small +5V mod on http://www.jamma-nation-x.com/jammax/tutorials.html that should bring the audio inline to +5V and allow audio to be used on my CRT. Though it says at the end of the tutorial that it's part of a MKL's tutorial to enable stereo that also requires a small circuit to be built.
Since my TV is a small mono CRT stereo isn't an issue to me and wonder if anyone knows if this small modification in the image below will allow mono to be ran through my CRT without the need for the mentioned stereo enabling circuit? (since it's not mentioned but I assume it probably is obvious that it will work?). Just want to take precautions before doing this so I'm not causing any permanent damage to my board or TV in the process.
https://preview.redd.it/nihcflbj2p391.png?width=465&format=png&auto=webp&e296d5c9

submitted by /u/GooSanders
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