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J
John MitchellAug 31, 2025
How do I fix blurry pictures on my Christie LWU421 Projector?
- MMr. John ReyesSep 1, 2025
If the pictures on your Christie Projector appear blurry, adjust the focus and/or horizontal phase settings.
How do I fix blurry pictures on my Christie LWU421 Projector?
If the pictures on your Christie Projector appear blurry, adjust the focus and/or horizontal phase settings.
Why doesn't my Christie LWU421 Projector recognize my USB drive?
If your Christie Projector doesn't recognize the USB storage device inserted into the USB TYPE A ports, use the REMOVE USB function first, remove the USB storage device, and then insert it into the port again.
What should I do when my Christie LWU421 indicates it's time to clean the air filter?
If your Christie Projector indicates it's time to clean the air filter, immediately turn the power off, and clean or change the air filter. After cleaning or changing it, be sure to reset the filter timer.
What to do if my Christie LWU421 Projector is waiting for an image file?
If your Christie Projector is waiting for an image file, check the hardware connection, settings on the projector, and network-related settings. The computer-Projector network connection might be disconnected; please reconnect them.
How do I fix flickering or stripes on my Christie Projector screen?
If you're seeing image degradation such as flickering or stripes on your Christie Projector screen, and the OVER SCAN ratio is too big, adjust OVER SCAN in the IMAGE menu to a smaller value.
How do I fix a Christie LWU421 not being detected by my computer?
If your Christie Projector is not detected by your computer as a plug and play monitor, ensure that the computer can detect a plug and play monitor using another plug and play monitor.
What to do if my Christie LWU421 won't turn on due to a power interruption?
If your Christie Projector doesn't turn on because of a main power source interruption, disconnect the power plug from the power outlet and let the projector cool down for at least 10 minutes before turning it on again.
What should I do if my Christie LWU421 Projector's internal temperature is rising?
If the internal temperature of your Christie Projector is rising, turn the power off and allow it to cool down for at least 20 minutes. Then, check the air passage aperture, air filter, peripheral temperature, and the ALTITUDE setting before turning the power back on.
What should I do if the lamp in my Christie LWU421 doesn't light and it feels hot?
If the lamp in your Christie Projector doesn't light and the interior feels heated, turn the power off and allow the projector to cool down for at least 20 minutes. Afterward, check the air passage aperture, air filter, and peripheral temperature.
How do I fix sound issues on my Christie LWU421 due to incorrect cable connections?
If there is no sound coming from your Christie Projector, check that the audio cables are correctly connected.
General| Brightness | 4200 ANSI Lumens |
|---|---|
| Resolution | 1920 x 1200 (WUXGA) |
| Contrast Ratio | 5000:1 (Full On/Off) |
| Light Source | Laser Phosphor |
| Weight | 21.4 lbs (9.7 kg) |
| Dimensions | 5.1" x 18.9" x 15.7" (H x W x D) |
| Technology | DLP |
| Light Source Life | 20, 000 Hours |
