BETTCHER
Industries, Inc.
Maintenance
5-30
Maintenance
Operation and Maintenance Manual
Manual No. 185321
June 15, 2018
Replacement of the Controller Board
(See Rear Panel Assembly)
C A U T I O N
S
TATIC ELECTRICITY CAN DESTROY THE MICROCONTROLLER
.
Remove rear panel and all plugs from the controller board. Touch the rear panel and touch any
nearby grounded devices to make sure you are not carrying any static charge. Keep the new
controller board in the anti-static bag until ready to install.
Remove the two wires from the terminals of the signal device.
Remove the four corner screws from the controller board and lift it off the spacers.
Place the four spacers over the threaded mounting holes.
Remove the new controller board from the anti-static bag and align it over the corner spacers,
noting position.
Install the four mounting screws with lock washers into the corner holes of the controller board
and pass them through the spacers and into the rear panel.
First turn the screws down slightly loose so the controller board centers itself then tighten them
fully.
Attach the two wires from the terminals of the signal device.
Connect all the plugs into their mating sockets. Note that socket (P9) is not used.
Install the rear panel.
COMPANY
CONFIDENTIAL