Model RB-MD-955 Replacement TX3-ER-8 Board Installation Instructions RB-MD-955 Mounting Unscrew the six screws that hold the existing board in place. Disconnect the two ribbon cables from controller board and remove the controller board. Replace with new board RB-MD-955, connect the two cables and use the six screws to mount the replacement board in place.
Figure 1: RB-MD-955 TX3-ER-8 Board Replacement
RELAY CABINET
Ribbon cables
Remove the controller board by unscrewing the six screws which hold the board in place. Disconnect the two ribbon cables. Place the RB-MD-955 Replacement TX3-ER-8 Controller board in its position and fasten the six screws to hold in place. Re-connect the two ribbon cables.
Six mounting screws hold the board in place.
TX3-ER-8 Elevator Restriction Unit LT-978 Rev 0 September 2009