Neo Geo AES mods! UniBIOS installation and RGB bypass!

In the 90's, the Neo Geo AES was the first console that truly delivered an arcade experience at home. The console and its games are rare and expensive, but the experience is still outstanding today. These days there are a few mods that can make the experience even better. On this Fix It Friday we will install a UniBIOS and improve the video quality with an RGB bypass!
UniBIOS information: unibios.free.fr/
RGB Bypass 150 ohm resistors: www.amazon.com/Projects-Resis...
Neo Geo 3-6 RGB Bypass details: www.retrorgb.com/aes-rgb-bypa...
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[@PhilWaylon]

I’m getting one of these RGB modded consoles for my 14L5 Sony PVM. The colors are going to be out of this world 🌎

[@BasementBrothers]

Really nice and easy to follow mod work! The Unibios install is nightmare if you don't have good tools and aren't very careful. The heat gun is the step I skipped last time. Only pulled two small traces that were easy to patch. I ended up having to bypass the sync from the CXA chip altogether because it didn't work with the Framemeister for some reason, and ended up using the TTL sync with some attenuation instead. One note: please put the console on a soft cloth when turning it over to open it, so it doesn't get scratched.

[@LIRetroGaming]

Thanks, glad that you enjoyed the video! The heat gun really helps to remove a chip with no issues. I try to be careful but it’s a fair point regarding the cloth

[@MaximRecoil]

There's usually no need to add solder to joints before desoldering them. I only do it on joints that refuse to desolder on the first try, which is rare. Adding solder when it isn't necessary is just adding an extra heat cycle to the pads and the chip, and it's best to keep their heat exposure as brief as possible in order to get the job done, which minimizes the risk of heat damage. For the record, I used to work in a PCB factory soldering on an assembly line, and I also did a lot of rework there. I soldered literally millions of joints while working there, and desoldered thousands.

[@sarahwhitman1754]

This was a really well done video and explanation of the mods and what they do! Thanks!

[@LIRetroGaming]

Thanks so much, and I’m glad you enjoyed it!

[@BrunakoPAO]

Great vid mate !! Loved it a lot ! Cheers from France

[@LIRetroGaming]

Thanks so much! Glad you enjoyed it

[@BrunakoPAO]

@@LIRetroGaming always a nice moment watching your vids !

[@adveduardoaguiar]

Nice vídeo !!! Congratulations from Brasil 🇧🇷

[@LIRetroGaming]

Thanks! I love Brazil, I was just there in September and I’m looking forward to going back

[@erick103]

Amazing work! Have you worked on a 3-6 board for the RGB bypass yet? I have mine Id like to work on but I'm also not sure what the best method is. Thanks!

[@BeyondEntertainment_]

Do you know if the NeoSD Pro works with RGB Bypass? I heard it doesn't get enough voltage if preformed.

[@Charlie-Cat.]

Great, I'll message you on Facebook regarding it. It's from a friend that's having video problems.

[@retro_escape2969]

Good video. I’ve seen HDMI moded AES units for sale on ebay, how different is that than this RGB mod?

[@LIRetroGaming]

I’m not sure how those hdmi mods are done. If it’s a pure digital to digital mod then the quality should be about the same but there are other ways of doing an hdmi mod where the quality would be much worse

[@psyquebelique7610]

What was the song starting at 4:34 ?

[@thefifthdoctor6780]

Waiting for mine to come back with RGB mod, multi bios and recap.

[@LIRetroGaming]

You’re gonna love it!

[@thefifthdoctor6780]

@@LIRetroGaming thanks dude I’m patiently waiting for it’s return!

[@alexanderthomson7993]

Where did you send your system and how much did it cost for the mod?

[@returnofmerenguespersempre6664]

5:38 at what temperature do you keep your heatgun? Was hoping to avoid any accidents when modding my AES :) Thanks for a great video!

[@LIRetroGaming]

Normally I keep my soldering iron at 750 f and my desoldering gun at 850 f

[@returnofmerenguespersempre6664]

@@LIRetroGaming Appreciated, thanks a lot!

[@GarmrNL]

Very nice video! I did the rgb mod on my aes 3-6 using this video, but the image is yellow/green now (super sharp though, that definately improved). I’m using a genesis 1 scart cable; would you perhaps know what could be wrong?

[@LIRetroGaming]

Thanks, glad you enjoyed the video! I think the problem is the cable that you are using. Those Genesis cables have extra components in them to further process the signal, and the Neo Geo does not need any of that stuff. My suggestion is to get one of those cables from insurrection industries that are specifically made for Neo Geo and you should be all set!

[@GarmrNL]

@@LIRetroGaming Thanks for the reply! Will let you know if that did the trick :-)

[@GarmrNL]

@@LIRetroGaming Thanks for the reply! I actually found the problem; the resistor for the B channel didn’t connect well; after reflowing the solder it works and the image looks super crisp :-) I ordered a new scart cables aswell so I can keep my Genesis connected instead of switching back and forth with my AES. Thanks again and you have a new subscriber!

[@dimitriskerasiotis3772]

Which revisions do you think have the best rgb output?

[@LIRetroGaming]

My understanding is that the earlier versions have the best RGB. But with the bypass mod they all look outstanding

[@sphynx6369]

I have a neo-geo aes and looking for a modding service to get some work done. Do you offer a service for neo-geo's by any chance?

[@ner38073]

Thanks for the video Long Island Retro Gaming. How can you do this mod while still keeping the composite video? Is it possible? Thanks in advance.

[@LIRetroGaming]

If you don’t do the RGB bypass you can still get composite video. However the RGB quality might not be as good

[@ner38073]

@@LIRetroGaming I see. So it is one or the other, right? I mean, I want to do the RGB mod since I do have a CRT with the proper cables. I have seen some ebay listings where the seller claims he did a rgb bypass while still keeping composite video. I will look more into it. Thanks for your reply and here you have another subscriber to your channel.

[@specialformula14]

ok ok .. i have a aes i tried to do this to.. and the bios chip now installed wont work .. messed up graphics.. needs to be sent in for fixing...

[@LIRetroGaming]

That’s unfortunate and I’m sorry that happened. Removing the original chip can be tricky and my guess is that some of the connections on the board were damaged when the chip was removed

[@mrtmiller7993]

I have a JAMMA arcade cocktail with vertical layout. Can any of this be swapped out with that? If not, what are some JAMMA boards I can buy other than the say 412 that can offer the BEST of what a cocktail table can do (2 person table...currently no track ball installed....just buttons) Thanks for the higher end details on gaming. Maybe I'll have to buy a solder gun. :)

[@LIRetroGaming]

If you use something like mister or jamma pi, you can get a lot more games that are compatible with a cocktail cabinet like the one you have. It can be tricky to get multiple games working with that style of cabinet but they are awesome

[@mrtmiller7993]

@@LIRetroGaming Thanks. Never done any rapberry pi builds, but if you have or know of a good link to walk through this gaming process, I'd be down to give it a shot. I repair pinball machines and play competitively, but this video stuff is just a 1 off for a home unit I picked up that is currently just a 60 in 1 cocktail machine.

[@Charlie-Cat.]

Hello, do you do other repairs on the Neo-Geo AES as well?

[@LIRetroGaming]

Possibly, it just depends on what kind of problem it has

[@kahnsealable]

Do you still offer this service?

[@LIRetroGaming]

Yes I do, you can reach me at 1uprestorations.com