Genesis:Triple Bypass Mod Model 3 VA2

This document will serve as a clear and step-by-step instruction on installing the 3BP on the Genesis Model 3, revision VA2.

WARNINGS

Please read the below warnings before proceeding!

This guide expects you to have a basic understanding of how to open up your Genesis Model 3 and to have basic soldering skills.
This mod permanently alters your device.
This mod should not be done by a beginner and is considered intermediate/advanced.
Make sure power is disconnected before proceeding.
After performing this mod you will no longer be able to use composite. You’ll be required to use RGB (or HD Retrovision) cables from this point forward.
Proceed at your own risk!

Tools Required

Flush cutters
Snips
Soldering iron
Solder
Flux
Solder wick
28 or 30 AWG wire

Installation

$ Start by removing the shell from your console. Remove the 4 screws at the bottom then turn it back upright and lift off the top shell. Remove the screws on the metal shielding and lift the shield off. Next, remove the 2 screws on the sides of the cartridge slot. Now you can lift the motherboard out of the bottom half of the shell.

Lift the RGB pins (pins 21, 22, and 23) from the CXA1645M chip.
Solder three wires from these points to the corresponding ones on the Triple Bypass board.
Solder three wires to the Red, Green, and Blue pads and run them through the hole near the edge of the board and connect them to the Triple Bypass board.
Solder a wire from the CSYNC point on the board to the sync input on the Triple Bypass board.
Cut this trace:
File:Genesis3VA2 3BPv2 Jose6.jpg
The finished product should look like this (see Sega CD Audio section below regarding the pins connected to cartridge connector).