Genesis:Triple Bypass Mod: Difference between revisions
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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:Master System Mods Wiki|Master System]], [[Genesis:Genesis Model Differences#Genesis_Nomad_(1995)|Nomad]], and others being made by members of the community. | 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:Master System Mods Wiki|Master System]], [[Genesis:Genesis Model Differences#Genesis_Nomad_(1995)|Nomad]], and others being made by members of the community. The latest version's source files can be found on [https://github.com/tianfeng33/triple-bypass-Version-2 Tianfeng's GitHub] or it can be purchased from [https://insurrectionindustries.com/product/genesis_triple_bypass_v2/ Insurrection Industries] or [https://retrogamerstuff.com/collections/mega-drive/products/mega-drive-genesis-triple-bypass-3bp-video-upgrade-board?ref=9qd6Y RetroGamerStuff]. | ||
{{ | {{Warning|This should be considered an expert-only mod and will (in most cases) disable composite video output.}} | ||
== Details == | |||
=== Video === | |||
The Triple Bypass incorporates a THS7374 video amplifier for the RGB video bypass, pushing the Genesis one step closer to clean video output. Depending on your model, you may need to lift the RGBS pins from the board, or add extra filtering capacitors to the board. If you lift the pins, you'll need to re-create the pullup circuit [https://www.retrorgb.com/fix-for-all-rgb-bypassed-sega-genesis.html as documented here]. | |||
=== Audio === | |||
One of the most exciting features of this board is its integrated Mega Amp 2.0, originally designed by [https://twitter.com/Ace9921Tweets Ace], but then tweaked by [http://www.retrorgb.com/artemio-launches-mdfourier-audio-preservation-project.html MD Fourier software] to get levels that match the best version of the model 1. This means anyone installing the Triple Bypass in a have audio output that's equal to, or better than original! | |||
The biggest difference can be heard in Genesis model 2 and 3's though. Genesis 3's will now have excellent quality stereo audio and the model 2's all sound excellent, regardless of motherboard version. | |||
== Guides == | == Guides == | ||
Revision as of 23:34, 14 September 2022
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 it can be purchased from Insurrection Industries or RetroGamerStuff.
 | This should be considered an expert-only mod and will (in most cases) disable composite video output. |
Details
Video
The Triple Bypass incorporates a THS7374 video amplifier for the RGB video bypass, pushing the Genesis one step closer to clean video output. Depending on your model, you may need to lift the RGBS pins from the board, or add extra filtering capacitors to the board. If you lift the pins, you'll need to re-create the pullup circuit as documented here.
Audio
One of the most exciting features of this board is its integrated Mega Amp 2.0, originally designed by Ace, but then tweaked by MD Fourier software to get levels that match the best version of the model 1. This means anyone installing the Triple Bypass in a have audio output that's equal to, or better than original!
The biggest difference can be heard in Genesis model 2 and 3's though. Genesis 3's will now have excellent quality stereo audio and the model 2's all sound excellent, regardless of motherboard version.
Guides
| Model | Motherboard Revision |
|---|---|
Model 1
|
|
Model 2
|
VA0 |
Model 3
|
VA1 |