Mega Drive switch less mod recommendations?

I've picked up a new Mega Drive but unlike my previous one, I'd like to do a switchless mod instead of, well, a switch mod. It just looks a little cleaner. I've seen a few guides around, they all seem to be based on a similar idea: use the reset button to set the region in a small chip that's soldered to the actual region solder points. You also install a colored led so you know what region you've got it set to!

There seems to be a few different ways of going about the mod. Even mmmonkey's guide says at the top there's a new way of accomplishing what his mod does. I've even seen what looks like a PCB for the mod over at this website:
http://circuit-board.de/forum/index...-Platinen-RGB-Bypass-Switchless-Mod-Mega-Amp/

Whats the best way to go about this mod? Any reccomendation? Thanks!

 

Yo.

I made thread with my Megadrive switchless:

http://www.assemblergames.com/forum...-mod-Video-Selection-board-and-Switchless-Mod


I used Dforce3000's tutorial. It's using a PIC16F630 and I made some modifications to fit my needs. I also did my own circuit but I can post them here (I made a trought holes and a SMD version).

 

http://www.assemblergames.com/forums/showthread.php?18586-Megadrive-Genisis-switchless-mods

The method I proposed (6.5 years ago!) is the most direct way. It's just a 74HC74 chip configured as a 1/1.5/2-bit counter. No programming.

 

Simple is good, but it's not lacking in features or compatibility, right? From what you mentioned in that post, it looks like it can do do the different LED colors to signify different regions. Speaking of which, would there be a way for the LED to revert back to red after it's indicated what region it's set to? That would be neat.

 

Features? The 7474 can be initialized to a specific value using a power-on-reset resistor-capacitor pair, that's about it. The LED state *is* the region state.

That isn't to say you couldn't add whatever "features" you seek like the reverting LED but complex rules, especially involving timing, are best implemented in a microcontroller instead of discrete logic. How about an ARM MCU with Ethernet MAC so the region can be set with a smartphone? #totallyuseful

 

Anyways you can reup the images?

 

Sounds simple enough. What about using a red LED and making it blink or something? Would that be easier than reverting back to red?