I Need help on searching schematics

hi,
I need schematic or some tips about ISDN pc-card with pci interface,but i have no idea about where and how can i search it.Please tell me how i can do it or if you had this schems for me.
tnks alot

go to google, hit image search, and type in your query, always works 4 me. If that doesnt work, then just do a normal search by typing in your query on the first page that pops up when you put in google.com