The PT-LB50 is a series of commercial high-definition projectors from Panasonic. It is capable of accepting inputs from a variety of sources, including most types of computer video outputs. Most of the problems that users of a PT-LB50 projector encounter probably result from either incorrect setup or configuration, and are fairly easy to troubleshoot.
Instructions
1. Check if the projector's lens cap is on. It's easy to forget.
2. Check the projector's power and video cables for loose connections. Firmly reconnect any loose cables. Loose connections are a common cause of power and image issues.
3. Wait for several minutes after using the projector before turning it on again. The projector bulb has to cool between uses.
4. Set the projector to the correct video input source, and ensure that the video source is configured to output video to the projector. Make sure the video source is producing a video format the projector can handle, especially if it's connected to a computer, which can produce much higher resolutions than even high-definition projectors can display.
5. Adjust the projector's focus or placement if the image is blurry. If refocusing the image doesn't help, your projector may be too close or too far from the screen. When placing the projector, make sure it is parallel with the screen.
6. Check how many hours the projector's lamp has logged. PT-LB50 projectors with more than 2,000 hours logged on their lamps will turn themselves off after 10 minutes of use. Replace any lamp with more than 2,000 hours of use immediately.
7. Hold the "Enter" and "Menu" buttons on the projector's control panel for more than two seconds if the buttons are not working to re-enable the control panel, which can be disabled through the menu options.
8. Clear away obstructions to the projector's air intake and exhaust, which can cause overheating. Dirty filters can also cause overheating. Remove the air filter cover from the bottom of the unit, and remove accumulated dust with a vacuum cleaner.
Tags: more than, cause overheating, Check projector, control panel, high-definition projectors