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Section 4: Maintenance and Troubleshooting
4-4 RPMX/CX50/CX60/CX67 User’s Manual
The keypad works on 2 AA size alkaline batteries. Periodically these batteries
require replacement.
To replace batteries:
1. Turn the keypad over to access the small battery compartment cover.
2. Push the small tab in and up at the same time - lifting the cover completely
off.
3. Remove and discard the old batteries from keypad.
4. Orient and place each new battery into the compartment as indicated by the
diagram etched into the compartment.
Insert the bottom edge of the cover into the rim of the compartment and gently
push the upper portion of the cover down until it snaps into place. If you don’t
hear a “click” the cover is not in position. Remove the cover and try again
ensuring the bottom edge of the cover gets inserted into the rim.
The projector operates using a 120W UHP lamp. Typically, aging lamps
gradually decrease in their intensity. You can check the number of hours the
lamp has been in use by checking Lamp Hours in the Lamp menu. It is
recommended that you be aware of the number of hours the lamp has been in use
and the quality of light output produced by the lamp. These are good indicators
as to when the lamp requires replacement. If the lamp burns out, because it has
reached the end of its life or it has failed for some other reason, it should be
replaced with another lamp.
Before you proceed with lamp replacement….
• Read the Lamp Replacement procedure in its entirety before you begin.
• Always power down and unplug the projector before servicing. Allow the
cooling fans to turn off before unplugging the unit.
• Allow the lamps to cool sufficiently before removing. Recommended wait
period is 5 minutes after the fans have turned off.
• Do not touch the glass surface of the lamp. Handle the lamp by its housing
only. Intense heat can accumulate in areas where fingerprints exist, creating
“hotspots” and a potential safety hazard. Wearing clean cotton gloves, and
handling the lamp by its housing will prevent getting fingerprints on the glass
surface.
To replace a lamp, do the following:
NOTE: The graphics used to illustrate the lamp removal procedure show the
PHM module only. The PHM does not require removal from the mounting tray to
perform this procedure.
Replacing Keypad
'
Batteries
4.3 Lamp
Replacement