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Projector brightness lower than expected

Why is the projector output not as bright as expected.

Details

The following are possible causes for drops in brightness:

Ultra high contrast lenses can drop brightness by up to 35%.

The actual ambient temperature being above 25°C limits brightness.

From the factory, the maximum expected ambient temperature is set to 35°C, whereas 100%
brightness occurs with an ambient temperature setting of 25°C.
The ambient temperature sensor in the projector reads the current temperature. The value set
through the user interface is the maximum expected ambient temperature, not the current
temperature. The projector needs to know the maximum expected temperature to ensure
consistency of the red power across the temperature range.

With LiteLOC v2.0, if the ambient conditions react and reduce laser power, it does not regain
the available brightness automatically. LiteLOC requires a laser power cycle or profile change
to issue the laser power settings again.

An error may have occurred due to an optical misalignment of the optical coupling mirror that
shows up as a brightness drop on the screen.

If the DMDs overfill, up to 10% loss of brightness can occur.

Resolution

1. Use a lens that is not ultra high contrast.
2. Reduce the actual ambient temperature.
3. Reduce the maximum ambient temperature set point.

Reducing the maximum expected ambient set point increases the red output. Reducing the
actual ambient temperature of the environment increases the green and blue output.

4. Reduce the brightness target using the LiteLOC

 feature.

5. Disable LiteLOC v2.0 or adjust the laser powers.

Any adjustment to the brightness slider or an individual laser power re-sends the power
settings for all colors.

6. Adjust the integrator zoom setting.

Projector noisier than expected

How do I make the projector quieter?

Details

The speed of the fans changes with the ambient temperature and as the temperature increases, the
speed and noise of the fans increase. 4K40-RGB software version 1.3.0 includes dynamic fan control.

4K40-RGB troubleshooting

4K40-RGB Technical Reference–Troubleshooting

14

020-103239-01 Rev. 1 (09-2020)

Copyright 

©

 2020 Christie Digital Systems USA, Inc. All rights reserved.

Содержание Mirage 4K40-RGB

Страница 1: ...Technical Reference 020 103239 01 4K40 RGB Troubleshooting...

Страница 2: ...ed modified or approved by Christie for such use g Except where the product is designed for outdoor use problems or damage caused by use of the product outdoors unless such product is protected from p...

Страница 3: ...greyed out 12 Color on the screen is not stable 12 Colors on the screen not accurate 13 Blemishes appearing on the screen 13 Projector brightness lower than expected 14 Projector noisier than expecte...

Страница 4: ...short circuit current capacity that may cause severe burns and electrical arcing Related information Use this guide in conjunction with the 4K40 RGB Service User and Status System guides available on...

Страница 5: ...rmatted using the FAT 32 file system 2 Select MENU Admin Interrogator 3 Select Run If on the projector the interrogator file is stored at the root directory on the USB flash drive If running 4K40 RGB...

Страница 6: ...display panel Enter key Resolution 1 Check the breaker switch is on or the breaker is not damaged If the breaker switch is not on turn it on Check the line cord for damage and proper connection If the...

Страница 7: ...wer is coming into the power supply Ensure a certified electrician checks the line voltage and supply from the wall Solid red Over Loaded A potential short in the output of the power supply occurred I...

Страница 8: ...two LEDs should be blinking If not blinking ensure the harness J30 between the housekeeping board and card cage is properly seated and connected If the display panel is on it indicates a functioning c...

Страница 9: ...roceed to step 3 Solid orange DC Output OK in remote control mode Check the communication CN2 harness into the power supply is fully seated and connected Slow blinking green Output Not Enabled There i...

Страница 10: ...10 from the housekeeping board to the 48VDC LVPS Communications harness J112 from the housekeeping board to the 12 VDC LVPS Power harness J111 from the LCDD to the 48 VDC LVPS Power harness J113 from...

Страница 11: ...ient temperature provides maximum power however any deviation from the optimal temperature can limit the power which is reflected on the red laser slider Some configurations may not reach 100 but the...

Страница 12: ...t Output Settings functions when using LiteLOC refer to the RGB sliders greyed out on page 11 topic The color sensor board CSBD has not been calibrated for LiteLOC version 2 0 Resolution 1 Ensure Lite...

Страница 13: ...correction modes were not selected to match the content playing on the screen The precise color chromaticity was either set up wrong or not enabled Resolution 1 Disable the existing color settings by...

Страница 14: ...ave occurred due to an optical misalignment of the optical coupling mirror that shows up as a brightness drop on the screen If the DMDs overfill up to 10 loss of brightness can occur Resolution 1 Use...

Страница 15: ...emperature When predicting watch for the following Too low the LiteLOC status item display a warning Too high available red laser power is limited Christie assumes the projector is operating in a high...

Страница 16: ...ature sensors have not failed or been disconnected LOS Dewpoint Approaching Limit warning Received a LOS Dewpoint Approaching Limit warning during calibration Details The projector is reacting to humi...

Страница 17: ...etected warning to focus on the HVCS or LVCS board affected at that slot Reconnect or replace the harnessing going to that board b If the warning persists swap in a different HVCS board and if the war...

Страница 18: ...e install the top cover 8 Turn on the projector and look at the error messages displayed in the display panel If the Formatter Fault error stays with the initial board the issue is with the HIP board...

Страница 19: ...ample the green board the issue is with the initial cable for example the red cable Replace the affected cable If the original Formatter Fault is still reported the issue is with the formatter board R...

Страница 20: ...6877 8737 Africa ph 27 0 11 510 0094 Korea Seoul ph 82 2 702 1601 Japan Tokyo ph 81 3 3599 7481 India ph 91 080 6708 9999 Germany ph 49 0 221 99512 0 France ph 33 0 1 41 21 44 04 Russia ph 36 0 1 47 4...

Страница 21: ......

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