Lamp Suddenly Goes Off; Flicker, Shadows Or Dimness; Lamploc™ Does Not Seem To Work - Christie CP4230 Service Manual

4.2.2 Lamp Suddenly Goes OFF

1. Check the lamp power in the Advanced Setup: Lamp Power / LiteLOC Setup window. Try increasing
the lamp power. NOTE: Older lamps may not reliably operate at significantly lower than rated power.
2. An interlock may be interrupting lamp function. From the Main panel, tap the LED in the top, left corner
to open the Status window. Tap Interlocks. If a failure is shown, interlock needs to be cleared before the
lamp will light. Also, ensure that extractor fans are powered.
3. The DMDs may be overheated. Check for an alarm condition. From the Main panel, tap the LED in the
top, left corner to open the Status window. Tap Temperatures. If a DMD temperature is too high, the
lamp will not ignite. Cool the projector and try again. Ensure there is proper ventilation, air filters are not
blocked and liquid cooling reservoir has coolant and is circulating.
4. Replace the lamp. For more information, refer to

4.2.3 Flicker, Shadows Or Dimness

1. Ensure the douser is OPEN completely.
2. LampLOC™ may need re-adjustment.
3. LampLOC™ may be in the middle of its adjustment. Wait until LampLOC™ completes.
4. Adjust LampLOC™. In the Advanced Setup: LampLOC Setup window, tap the
5. Check the lamp power in the Advanced Setup: Lamp Power / LiteLOC Setup window to see if the
power is consistent or varying. Try to increase lamp power, if possible. Lamps which are near end of life
may not operate reliably at lowest power range.
6. Fold mirror misalignment (Christie service required).
7. Integrator rod misalignment (Christie service required).
4.2.4 LampLOC™ Does Not Seem to Work
1. If the Do Auto button of the LampLOC™ function does not work in
the Advanced Setup: LampLOC Setup window, try adjusting the
lamp position manually by tapping the
buttons in the LampLOC region. Watch the light level for changes
indicating lamp movement, both on the TPC readout and on screen
with a white test pattern.
2. If the motors do not respond, you can position the lamp manually. UV
danger. Qualified service technician only. Turn OFF and cool down
the lamp completely. Open the door with the proper safety equipment
and then manually adjust the motors to ensure that they are free and
moving smoothly.
3. If the lamp runs dim or the image displays poor uniform brightness, do
the following:
• Check that the anode yoke (lamp yoke) is in the correct position.
(Figure 4-2)
• 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.
CP4230 Service Manual
020-100622-04 Rev. 1 (05-2016)
Figure 5-59 Install New Lamp, on page 5-40.
up/down/left/right/in/out
Section 4: Troubleshooting
button.
Do Auto
Figure 4-2 Lamp Yoke Position
4-3