Mircom LT-977 RB-MD-923 TX3-NSL-8M Installation guide

LT-977 Rev 0

September 2009

Model RB-MD-923

Replacement TX3-NSL-8M Board

Installation Instructions

RB-MD-923 Mounting

Unscrew the six screws that hold the existing board in place. Disconnect the two cables from top of the controller board.

Replace with new board RB-MD-923, connect the two cables and use the six screws to mount the replacement board in

place.

Figure 1: RB-MD-923 TX3-NSL-8M Board Replacement

TX3-NSL-8M

NSL Unit

Remove the controller board

by unscrewing the six screws

which hold the board in

place. Disconnect the two

ribbon cables. Place the

RB-MD-923 Replacement

TX3-NSL-8M Controller board

in its position and fasten the

six screws to hold in place.

Re-connect the two ribbon

cables.

Six mount-

ing screws

hold the

board in

place.

Ribbon cables

NSL CABINET