Section 4: Maintenance and Troubleshooting
Replacing Keypad | ' | The keypad works on 2 AA size alkaline batteries. Periodically these batteries |
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.
4.3 Lamp | The projector operates using a 120W UHP lamp. Typically, aging lamps |
Replacement | 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. |
