Alright so I have a "lady friend"

whos speedo stopped working it is a 1990 honda civic 5 speed, it had been working and died recently as well i get to work on said car
Is it a typical cable goingto the transmission from the dash cluster or am i looking at something else? I know nothing about civics let alone hondas
what should i be looking at, I was told that 92 and newer have a sensor located somewhere under the airfilter box, is this true with the 90's aswell
thanks in advance