@Etienne and everyone else:
I have about 50 MTC900 Manuals to give away. For free, just shipping.

Also a few MTC9000 and others. I guess I also still have a few generic Zaccaria manuals, the crappy photocopied ones.
@Ully:
I give you an example, it's really easy. You need a fingerboard, a connector, a few wire clips, and the appropriate pinout of your game.
This is an adapter I made to test Konami boards like Amidar or Time Pilot on my Jamma MAK:

On the left you see the fingerboard with 2x28 pins to fit the Jamma connector of my MAK.
On the right you see a 2x18 pin connector which fits the Amidar PCB.
You take a look at the pinout listing of the game and find the pin where eg. GND is connected. Find the GND pin on the Jamma side and connect them. Do this for all the connections you need. Finished.
Note that in this particular example the adapter can be used with quite a number of games which all use the "Konami Classic" or "Scramble" pinout. This is not always the case. In fact many pre-Jamma games have their own unique pinout.
Plus it is possible that bootlegs may have a different pinout than their original counterparts.
Also have in mind that some boards can't be fully adapted due to strange voltages, special controls, etc. which Jamma doesn't provide. For expample I made I Jamma adapter to test our Pole Position boards. Of course my MAK doesn't have a steering wheel and sound is also hard to connect in this case, but it's enough to see if the board works or not.
Concerning the test station you have:
-Instead of the Jamma fingerboard you need one that fits your "TV Ideal" connector (more pins) or a loom for the "MSG" connector.
-So I suggest you make (or find) a Jamma to MSG adapter or a Jamma to TV Ideal adapter (or both) and adapt your to-be-tested-games to Jamma. Because Jamma fingerboards are easier to find (arcadeshop.de has them) and I guess cheaper than TV Ideal fingerboards or those MSG/Hellomat looms.