Uses the 7374 RGB SD amplifier chip.

Eliminates or at least significantly reduces the jailbarring on the master systems model 1 console by bypassing the existing sony CXA amplifier chip.

Easy to install

I only deal with the VA3, models, so the photos show this revision, but there is information on the early model 1 revisions if you do some googling, for example here is a link:

https://retrorgb.com/smsrgbbypass.html

PAL VA3 INSTRUCTIONS

Step 1 (optional), Remove RF Module, not essential, but I prefer to just remove this to create some more room for the rgb amp.

Step 2 cut existing R,G,B and sync signal traces, there are 3 top side and 1 underside going to the DIN8, see photos.

Step 3 Wire inputs, cut the RGB pins, NOT the sync pin on VDP 315-5246 chip, and wire to bypass amp input as shown in photos.

Step 4 Wire outputs to DIN8, use a grinding pen or file to prep din 8 pins.