Need help. Tekken Tag In (Namco) to a Neo Geo 161 game system

[ezuniden]

Hey everybody!

I just purchased a Tekken Tag In Arcade from a friend and I would like to convert it to a multi game cabinet.

The Neo Geo 161 cartridge looks like a winner.

Could anyone please let me know if it's possible and what I need?

Thank you

[paigeoliver]

You will need a Neo Geo one slot motherboard and you will have to modify the games wiring as Tekken Tag and Neo geo aren't wired exactly the same.  The 138 Neo Geo cartridge is actually better than the 161.

[ezuniden]

Thanks for the response.

I'm willing to buy the components necessary, but I'm not an electronics guru.

I was hoping to find some type of adapter to make a simple swap.

How difficult is it to redo the wiring. Also, when you say wiring...are you referring to the the game controls?

[ezuniden]

Here's a link to the picture of my board.

http://www.jammaboards.com/images/products/Tekken_Tag_PCB.jpg

Is there any other easy options to add multiple games to it?

Thank you for the help!!

[paigeoliver]

No other games will add to that circuit board itself (at least no outside some incredibly esoteric wizardry that might possibly be done to change what game that circuit board was running).

The Neo Geo will have a motherboard that looks roughly similar to your Tekken Tag one, but has a cartridge slot for Neo Geo cartridges.

An adapter to specifically adapt Neo Geo to your Tekken Tag machine would be way more complicated then just making the couple of wiring changes needed.

Both circuit boards use a 56 pin main connector (called a JAMMA connector).

Your Tekken Tag has a second connector that wires up buttons 4 and 5 (and the second speaker, although this is often not used.

While a Neo Geo circuit board (of the one slot variety), has button 4 wired up to a normally unused wire on the jamma connector. The multislot variety also wires the sound differently.

If you want it easy with no wiring changes then you are going to want to just buy jamma boards (game circuit boards) for games that will plug into your wiring with no changes.

Check games on http://www.arcade-museum.com to see if they match up to your game cabinet. Here are the details you need to match up to make sure it will work in your cabinet with your wiring.

Orientation: Horizontal
Type: Raster: Standard Resolution
Joystick: 8-way (or 2-way)
Buttons: 3 (or less)
Conversion Class: JAMMA

arcade-museum.com can be wrong about details from time to time, so it wouldn't hurt to ask here about specific boards you might want before you buy them (that site actually lists Tekken Tag as being medium resolution but I know for a fact that it isn't, as Tekken Tag Tournament is the circuit board I run on my monitor test bench.