Lamp Suddenly Turns Off; Flicker, Shadows, Or Dimness; Lamploc™ Not Working; Liteloc™ Not Working - Christie CP4220 Setup Manual

Troubleshooting
• If you hear a brief clicking noise, but the lamp does not ignite, replace the lamp.
• Check the transformer Voltage switch on the transformer.
7.3

Lamp Suddenly Turns Off

• Tap Menu > Advanced Setup > Lamp Power/LiteLOC Setup. Increase the lamp power.
• Tap Menu > Status and then Interlocks in the left pane. Review and correct all interlock failures.
• If EVB errors occur, check the door interlock.
• Tap Menu > Status and then Temperatures in the left pane. Verify if the DMD temperatures are too high. If
the temperatures are too high, cool the projector. Ensure the projector is properly ventilated, the air filters are
not blocked, and the liquid cooling reservoir has coolant.
• Replace the lamp.
7.4

Flicker, Shadows, Or Dimness

• Ensure the douser is open.
• Run a LampLOC™ adjustment.
• Verify that a LampLOC™ adjustment is not in progress.
• Tap Menu > Advanced Setup > LampPower/LiteLOC™ Setup. Monitor the Power % field to determine
if the power is consistent or varying. Increase the lamp power. Lamps which are near end of service may not
operate reliably at a lower power setting.
• Fold mirror misalignment. Contact your Christie accredited service technician to resolve the issue.
• Integrator rod misalignment. Contact your Christie accredited service technician to resolve the issue.
7.5 LampLOC™ Not Working
• If the Do Auto option is not working, tap Menu > Advanced Setup >
LampLOC™ Setup and adjust the lamp position manually. Observe
screen brightness by adjusting the XYZ values or use a light meter to
check for changes in brightness.
• Check that the anode yoke (lamp yoke) is in the correct position. (Figure
7-3)
• Check that the flat part of the anode end of the lamp (if applicable) faces
up in the anode yoke. For CDXL-20 and CDXL-30 lamps, the flat part of
the anode end of the lamp should be positioned at the 2 or 10 o'clock
position.
7.6 LiteLOC™ Not Working
• Tap Menu > Advanced Setup > LampPower/LiteLOC™ Setup. Tap
Enable LiteLOC
• If the lamp power is at the maximum setting to maintain a LiteLOC™
setting, LiteLOC™ is automatically disabled. Reduce the LiteLOC™ setting, or install a new lamp.
7-2
.
™
Figure 7-3 Lamp Yoke Position
CP4220 Setup Guide
020-100692-02 Rev. 2 (05-2014)