6.Line up the keyhole slots on the bracket with the screws in the wall, then slide the system down onto the screws until it is secure.
Keyhole Slots
ADJUSTING THE DISPLAY CONTRAST
To lighten or darken the display, press DELETE and
REVIEW 
buttons until CONTRAST ADJUST ap- pears in the display. To scroll through the contrast set-
tings, press REVIEW 
. Then press REVIEW or wait about 10 seconds.
DELETE
REVIEW
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