Genesis Triple Bypass 

Nothing ventured nothing gained. Great work

For attaching the mDIN in the future, I recommend tinning both surfaces then using braid to remove and flatten as much of the solder as possible. When you add solder to the sides with enough heat to flood the ground plane the surface tension will flow a thin layer underneath like capillary action. I would also scrape solder mask and add solder on the right (EXT port) side of the mDIN for mechanical strength. I usually go a bit overboard and anchor the overhanging portion to the bottom ground plane with used solder braid wrapped around the back of the motherboard. There are two DIN8 styles with the round-top one being better-suited to installing beside the mDIN since you don’t have to notch it. I saw where you notched the 3BP corner but you can notch it further to remove the ground pad too (the nearby capacitor still works as a ground) and elevate the 3BP board from the mDIN to make even more room. I also use a file to taper the bottom edge of the 3BP PCB away from the DIN8. I did one install on a PAL-modded Japanese VA6 where they had already cut a hole on the left and mounted an RF modulator off the left side ground plane. Since there is no RF modulator in the back of a Japanese console I had to gut the RF modulator and use the shielding as a place to mount my mDIN. This worked out very well since I was also able to reuse the switch as a region switch. I think I might try something similar with the next American console I do since the mDIN sits slightly too low anyway. It will center the mDIN and give me a bit more clearance with the original DIN8 as well as provide a better mechanical mount. Of course, I will have to cut a square out the back for the mDIN to protrude but I can then fold the shielding down and attach to the ground plane below for even more structural support to solder the mDIN to.

you don't have to lift that pin at 57:58, if you can solder to the pin/pad ok.

The third “bypass” is headphone jack since it’s the only stereo output before installing the 3BP and doesn’t provide line level.

Another great video bro, keep em coming!

Did this mod on my VA6, but I removed the caps for the audio, then I noticed leak of some music effects while playing the level 5 of Splatterhouse 2, after research looks like there's other ppl with similar problems in other games, so even if the 3bp amp sounds better than stock amp that leak of sounds don't convince me. Do you think your method to preserve the OG amp can be used for my VA6 too? Or it's a specific method for the VA3? (I know my va6 may not sound as good as a va3 but I don't want to miss sound effects due the 3bp amp).

Good video, i went with ceramic disc capacitors with the same uF instead of the SMDs since I didn't want to permanently mark up my genesis's board

the capacitors you removed at 1:17:15 is done to keep the original audio amp and still output stereo through the 3bp video output?

hello, how do you know what caps to use near the VDP ? an hour into the video. cheers

Nicely done! I think it would be easier (and less risky) to cut those 3 traces and solder the wires over the cut traces instead of lifting those 3 IC pins. Probably easier to revert, too, if anyone wishes to do that. Thanks for the videos!

I have a Model 1 BD M5 PAL Va 6.5, do you think the process is the same? boards look very similar