Sega Genesis RGB Bypass

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  • #24116
    BuckoA51
    Keymaster

    Any good tuts?

    #24215
    nzChris
    Participant

    Here you go! 4 hours of install haha, around 33 mins in what you want.

    #24261
    BuckoA51
    Keymaster

    trying it today

    #24740
    BuckoA51
    Keymaster
    #24742
    BuckoA51
    Keymaster

    just noticed I didnt do the mod properly going to retest

    #24753
    nzChris
    Participant

    Yes I would absolutely recommend you lift up pin 50, that is what made mine look perfect from being a mess before.
    If you still have issues after this maybe look at snipping the legs on the CXA1145 (20/21/22/10).
    Good luck! it really is worth it, I have been playing my Megadrive constantly since I got this working, especially good with the OSSC and turning on scanlines = )

    #25004
    BuckoA51
    Keymaster

    Its kind of different then before but not alot better

    #25043
    nzChris
    Participant

    Hey there,

    You describe the same experience I have here. With the OSSC you can clear the image up by enabling the Low Pass Filter. Play around with the LPF in the output? and sync menus and you should find a combination that works.

    * Have you followed the OSSC optimal tuning YouTube video? HIGHLY recommend you do so if not!

    With regards to I’d there an improvement I’m starting to think it is sideways. I bought a job lot of Mega Drivrs so I have a few to test. Here is a photo I took yesterday of a stock MD1 with NTSC mod. And then a MD1 with bypass.

    View post on imgur.com

    View post on imgur.com

    Maybe I haven’t chosen an interesting background but I’ve decided I prefer the darker green on the stock image. The bypass board green I a bit more yellow.

    With the bypass you can see some extra colours on Sonics head.

    What do you think? I should try take some shots of other games to compare again.

    Chris

    #25047
    BuckoA51
    Keymaster

    ill take another look

    #25055
    nzChris
    Participant

    I think I need to do the test again but directly into my TV SCART connection and look at it objectively without the OSSC making it pretty. I think the real question is, did it fix the jail bars? the brighter colours it seems are more of a preference thing and you could probably tweak the OSSC to do this anyway.

    Yeah I have an Everdrive so I will load that game up and give it a test later too.

    I have 11 PAL Mega Drives high def and non, mostly Chinese, two made in Thailand and one Japanese PAL (All modded to NTSC), I will do some more comparison this weekend.

    Yeah I remove the RF adaptors off all of my Mega Drives to mount a region switch there, no need to drill extra holes everywhere plus it’s only hipsters that would want to play through RF lol.

    Never heard of this audio amp before, my understanding is if you have the Yamaha YM2612 you have good audio and the models with the YM3438 are the ones that need a replacement. Might pay to find out which sound chip was used for the before example.

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