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Northstar M121/M84 Installation and Operation Manual8
1-4 Removing and replacing the display unit
If the M121/M84 is bracket mounted then it can
easily be removed for security.
Removing the display unit:
1 Turn the M121/M84 off (see section 2-2) and
put the dust cover on.
2 Loosen the knobs on the mounting bracket
and lift the unit off the bracket.
3 Unplug the connectors from the M121/M84;
turn each locking collar anticlockwise until
you can pull the plug out.
4 Store the M121/M84 in a dry clean place.
Replacing the display unit
1 Plug the connectors into the back of the
display unit:
Match the connector’s color to the socket
color.
Insert each connector and turn the
locking collar clockwise until it is finger
tight.
Nothing will be damaged if a cable is
plugged into the wrong socket by mistake.
2 Hold the M121/M84 in place on the
mounting bracket. Tilt it for best viewing,
then hand tighten the knobs on the
mounting bracket. Remove the dust cover.
Mounting bracket
Knob