If your Lü is not turning on

If your Lü is not turning on


Step 1 - Check the projector source

Ensure that the projector is set to the correct source. 
Press the "HDMI 1" button on the top of the projector's remote to select HDMI 1 as the source. If there's no response, try selecting HDMI 2 instead.





Step 2 - Activate the Lü System

Using the Lü remote, press repeatedly on the spacebar for 5-10 seconds until the screen turns on. The Dell logo should appear on the screen. 




Step 3 - Re-sync the Lü remote

1. Turn off the Lü remote.
2. Hold the "F1" key.
3. While holding "F1", turn the remote back on, then release the "F1" key.

This action should sync the remote back to the Lü system. The amber light will start blinking faster but should stop after a few seconds when the remote is synchronized.


Step 4 - Reset the Lü system 

1. Turn off the projector.
2. Locate the breaker to which the Lü system is connected.
3. Switch off the breaker and leave it off for 4 to 5 minutes.
4. After the designated time, turn the breaker back on.
5. Go back to your Lü and turn the projector on again.

This process may help reset the system and resolve any persistent issue.
The Möbil is excluded from Step 4 but you can disconnect the power cable from the unit.


Step 5 - Press the power button and check the HDMI cable

If you still have no image on the screen, please follow these steps depending on your generation of Lü system: 

Lü 2nd generation 




  1. Open the heart's cover by removing the single screw.
  2. Press the power button of the computer located in the bottom left of the heart.
  3. While accessing the heart, try disconnecting and reconnecting the HDMI cable for a few seconds.

Möbil 

  1.  Turn off the projector.
  2. Remove the back cover by unscrewing the six screws.
  3. Press the power button on the computer.
  4. Disconnect and reconnect the HDMI cable from the computer. You can also try another HDMI port.

Lü 1st generation 








  1. Access the computer located atop the Lü in the light and sound module, potentially requiring a lift.
  2. Press the power button, wait a minute, then press it again.
  3. Disconnect and reconnect the HDMI cable from the computer. You can also try a another HDMI port.


Still have questions? Contact us!

    • Related Articles

    • Fixing remote pairing: flashing orange light

      A flashing orange light on the keyboard remote when no keys are being touched indicates that the keyboard remote is no longer paired with its USB receiver. To re-synchronize the keyboard remote, follow these steps: 1. Turn off the remote. 2. Press ...

    • Lü 1st generation - Change the image ratio

      If any part of the screen does not display correctly in the projection, the aspect ratio may have been accidentally changed. To change the image ratio and thus have a full screen, press the Aspect button using the projector remote control and choose ...

    • Change the color of the projector image

      We recommend this article for IT members of schools or districts. If the color of your projector seems to have changed, press the Color Mode button using the projector remote control. We recommend that you select the Dynamic mode. Press the “Color ...

    • Düo connection not possible

      We recommend this article for IT members of schools or districts. Restart your computers : Click on the power icon in the bottom left of the Lü homepage and select "Resetart the system". This would reset the system and potentially resynchronise both ...

    • How to turn on and off your Lü

      To turn on your Lü: Press ON to turn on the projector using the Epson remote controller. Turn on the remote-keyboard. Turn off the gymnasium lights (optional) Wake up the application by pressing any key. Sign in with your account or continue as a ...