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Thread: Renovated VA1 Model 2 Sega Genesis /w CXA1145M, Partial Recap, Sound Fix - $12+ship

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    Outrunner Eep386's Avatar
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    Default Renovated VA1 Model 2 Sega Genesis /w CXA1145M, Partial Recap, Sound Fix - $12+ship

    As the title says.
    Was in terrible shape when I purchased it (the top was partially MELTED! Fortunately the insides were relatively okay despite a broken DC jack), but after a *heavy* cleaning and repair session (fixed the DC jack and replaced the melted top shell, reset button and most of the caps) I brought it back to full life. Ran out of money to buy 10uF caps to finish the job, so you'll have to finish that yourself. The bottom shell is original and not too bad off, though one side is very slightly warped, you can see it in the photos.
    Replaced the awful KA2195D with a much less disgusting CXA1145M; also made a valiant attempt to make the onboard sound much less craptacular. It now sounds okay in most games, though very loud games like EA's Shadow of the Beast can make it crunch and clip, still it's nowhere near as bad as it was before.
    Asking $12+shipping. And yes, if you want I can replace the bottom shell; won't cost any extra. (I just wanted to keep it as original as possible...)

    IMG_0673.JPGIMG_0674.JPGIMG_0675.JPGIMG_0681.JPGIMG_0682.jpg

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    Outrunner Eep386's Avatar
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    For anyone who's curious as to how my sound mod works, here's a clip of it:
    https://www.dropbox.com/s/ywd0tb2wbw...dTest.ogg?dl=0

    As you can hear, it's no longer distorted or muffled, there's still a little bit of noise (which is not helped by me amplifying the recording to make it reasonably loud, as my recording card captures things really quiet for some reason) but it's not too bad. (Full elimination of noise will require a substantial rework of the power planes; namely, the op-amps and probably the FM DAC will need to be powered by a separate regulator plane.) It is slightly quieter than other stock systems though, but not by much.
    Last edited by Eep386; 08-11-2018 at 02:28 PM.

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