Lumens PC 193 Document Camera (Ladibug) Auto-Focus Repair Guide

If the auto-focus on your Lumens PC193 document camera is not working, you can try

forcing a re-focus, toggling the auto-tune function, or switching to manual focus. If these steps do not work, reset the camera or update its firmware.

Initial fixes

Force re-focus: Press and hold the [FOCUS] button, located on the right side of the camera's lens, to force the camera to re-acquire focus. The manual suggests pressing this button each time the camera head is moved.
Use the "Auto Tune" button: If auto-focus is failing, press the [AUTO TUNE] button on the control panel or remote. This function automatically adjusts the image for the best brightness and focus.
Change display source: Some IT support guides suggest toggling the display input. Switch to another video source and then switch back to the document camera. This can sometimes reset the focus control.

Switch to manual focus

If the auto-focus is completely unresponsive, you can switch to manual focus. The process is outlined in the user manual:

Press the [MENU] button on the control panel or remote.
Navigate to the Setting menu.
Look for and select the Manual Focus option.
Once in manual focus mode, turn the focus ring on the camera's lens barrel to manually adjust the sharpness.

Advanced troubleshooting

Clean the lens: Use a microfiber cloth to gently clean the lens and remove any smudges or dust that might be interfering with the auto-focus sensors.
Reset the camera: A factory reset can resolve many software-related issues.
- Disconnect the USB cable, if it's connected.
- Connect the camera to a monitor or projector using an HDMI or VGA cable.
- Press the [MENU] button on the camera.
- Navigate to the System submenu to find the factory reset option.
Update the firmware: Outdated firmware can cause issues with camera functions. You can update the firmware by following these general steps, though you should refer to the PC193-specific instructions on the mylumens.com support site. https://www.mylumens.com/en/Downloads/2?id2=12&keyword=&keyword2=PC193&pageSize=10&ord=
1. Press the [Enter] and [Zoom+] buttons on the keypad simultaneously to open the Service Menu.
2. Navigate to the [ISP] menu and select [Firmware Upgrade].
3. Follow the on-screen instructions to complete the upgrade. Do not interrupt the process once it begins.
4. Restart the unit by unplugging and re-plugging the power cord after the update is complete.