Powerpoint presentations are a popular use of multimedia projectors.
There are dozens of models of multimedia projectors in use in the offices and classrooms of the United States, showing multimedia presentations and PowerPoint slide shows. These presentations are quickly replacing the use of overhead projectors and their transparency sheets, but the introduction of this more advanced technology does tend to mean there's more that can go wrong. Thankfully, most of the issues that come up with the use of multimedia projectors result from incorrect setup or configuration. If your projector is being uncooperative, there's a good chance one of the following items will get it back on the straight and narrow.
Instructions
1. Check if the lens cap is still on. Often, what seems to be a broken or poorly focused projector is just a case of user absentmindedness.
2. Check the projector's power switch. Some models have a power button on their control panel, and another power switch on the rear of the unit.
3. Check both ends of any power cables and video cables connected to the projector, including power cables. Disconnect, then firmly reconnect any loose connections.
4. Set the projector to the correct video source. Most projectors have a "Source" button that cycles through available inputs.
5. Check the resolution your computer's video output is set to. Make sure it isn't set higher than the projector is capable of displaying. Your projector should be able to display resolutions of at least 640 by 480, so start there, and work your way up.
6. Adjust the projector's video settings if you're getting a blurry, poorly colored or dark image. Play with the focus ring on the lens assembly to focus the image, and adjust the brightness, color, contrast and saturation settings to fix the brightness or color.
7. Reposition the projector closer to the screen, and make sure the front of the projector is parallel to the screen. Dim images may also result from setting the projector too far from the screen. Off-angle projectors will also produce a distorted image.
8. Check how many hours the projector's lamp has logged. Old lamps produce dimmer, less vibrant images.
9. Swap out the video and power cables connected to the projector one at a time. If none of the above steps fixes your problem, you may have faulty cables.
Tags: multimedia projectors, power cables, brightness color, cables connected, cables connected projector, connected projector, power switch