HP 2500C Series - Manual (Page 155)

Removal and Replacement of Parts (without Calibration) 7-5
Step 6. Remove all the seven screws securing the
PCA to the chassis.
Step 7. Check that the clips on the parallel port
cable plug do not impede the PCA
removal ; position them to stand straight
out from the plug. Make sure that all
cables and connectors are moved out of
the way. Remove the PCA.