I found a similiar LCD (if its not the same) , with exactly the same boarddesign, and numbers of the pins : http://www.produktinfo.conrad.com/datenblaetter/175000-199999/181664-da-01-en-LCD_MODUL_STN_POSITIV_LED_WEISS_16X2.pdf
Anyway, when I wired only the VSS and the VDD from the LCD to my arduino (just making sure the LCD worked) it didnt come alive, not a sign, so, I suppose it must be broken.