Well, you all might know the problem, you're not totally sure if the socket on your rusty dusty dirty pcb whore was originally populated with some useful circuitry or not...
You might see it on a photgraph but most pictures on the internet are of very poor resolution...
There for I created a collection of hi rez PCB pictures on my website. No problem if you're not so much into German... it's only pictures and game titles...
You can find it here:
http://www.wolfgangrobel.de/arcadetalk/pcbgalerie.htmJust click on the picture you want, and it opens in another tab. Minimun resolution is 2400 pixel width normally.