Help with Logitec Space Invaders

I have a Logitec space invaders PCB, but can't seem to find a pinout for it any where. I can find all the other space invaders but not the Logitec. Can some please help.

You may have to work the pinout out yourself !!!

If you need a hand just post back or drop me a line !

Iain

ps I Do this very regularly on my arcade boards as I don't trust standard pinouts regardless!

This may be of some help

http://www.crazykong.com/tech/Identify-unknown-boards.txt

When Im testing a bunch of boards (jamma or anything else), just for ID purposes, Im only using 3 connections. Ground, 5 volts and one of the R,G or B connections. Can usually tweak the vert/hor hold in order to make out the title screen and/or if its booting correctly.