Veris Technologies OpticMapper - Operating Instructions - Manual (Page 56)

Pub.# OM17-OpticMapper
6-22
Procedure #9: Removing EC Surveyor Cover: Microchip Replacement and 3100 to 3150
Resistor Change
It may be necessary to open the EC Surveyor to perform one of the service functions listed below.
Disconnect power cable. Remove four screws in front end plate, and pull end plate slightly to free
up top panel. Be careful not to pull too hard and disconnect any wires.
Figures 9.2 a and b.
Slide top panel out to reveal circuits.
Figure 9.3