Genesis:Triple Bypass Mod

This should be considered an expert-only mod and will (in most cases) disable composite video output.

The "Triple Bypass" mod is a board that bypasses the audio circuit, video circuit, and optionally, the Model 1 DIN of the Sega Genesis / Mega Drive. It was originally designed by db Electronics, but has become a true open source project with many amazing contributors. There are also versions for the Master System, Nomad, and others being made by members of the community. The latest version's source files can be found on Tianfeng's GitHub (or Zaxour's improved remix) or it can be purchased from Insurrection Industries or RetroGamerStuff.

For technical details on how the Triple Bypass mod works, please see the Genesis:Triple Bypass Mod Technical Details page.

Guides for Specific Revisions

Model	Motherboard Revision	Audio Fix	Post-Bypass Color Fix	Notes
Model 1	"VA0"	Guide	Guide
	VA1
	VA2
	VA3	N/A
	VA4	N/A
	VA5	N/A
	VA6	N/A
	VA6.5	N/A
	VA6.8	N/A
	VA7	N/A
Model 2	VA0	N/A		For all versions of the Genesis 2 except the VA4, a bottom-install is recommended.
	VA1	N/A
	VA1.8	N/A
	VA2	N/A
	VA2.3	N/A
	VA3	N/A
	VA4	N/A
Model 3	VA1	N/A
	VA2	N/A
Sega CDX	CDX	N/A

Links

• GitHub project page
• Model 2 DIN Breakout