once you get new KB open old one , with a HB pencil,nope. Kb hasn't moved in 3 years. Letters E and T no longer respond.
re- trace the etched tracks on film around your T and E keys .
bet works for i'd done that a few times for spilling stuff on KB
eats the tracks. while doing this operation i kept contact film dry and separated from rest of KB, washed everything else in sink with hot water an dishsoap using a brush to remove the goooey syrup of old pop