No red I have a Dell2300MP projector. The test pattern is ok but there is no red in any of the images when the projector is connected to a computer. The computer works ok with other data projectors so I don't think that the computer is the problem.
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Recommended that you have a tech come out and look at it might have a bad LED assy. for the Magenta Image unit. All other color print OK? Can you print gradation test pattern for each color in service mode? Meter count, details, stop 00 stop 01 Test Output Gradation pattern select magenta. If you open the side cover after printing a document with the color magenta try to catch a print of paper do you see the color magenta on the transfer belt if yes the drum is ok could be the transfer belt magenta 1st transfer roller on the belt replace the belt assy.
Identifying available connections
The first step in connecting your computer to a TV or projector is finding an identical port on both machines. Once the matching port has been identified (one that is the same on both your input device and output device), you need the appropriate cable to connect them. This section contains a picture of the back of an Epson projector and its available connection ports; as well as descriptions of each.
The HDMI connection is very popular among display electronics. In fact, nearly all modern televisions and projectors feature HDMI ports. Most laptop computers support HDMI and it is becoming more prevalent on both desktop as well; even without a high-end video card. HDMI is quickly becoming the standard for all electronic equipment for its high quality signal and ability to carry both audio and video signals. The image to the right is that of an HDMI cable.
The VGA connection is the most common among both desktop and laptop computers, is found on most projectors, and some TVs. The VGA cable has a 15-pin connector on each end that plugs into a VGA port on each device. Due to the fact that most televisions do not support VGA, we recommend using HDMI for their wider range of compatibility.
Tip:VGA cabling is universal for devices that support it. For example, the if your desktop monitor that uses a VGA cable it, that same cable can be used by a laptop to connect it to a projector.
Note: If you are using an Apple desktop or laptop you need a VGA adapter to connect a VGA cable to the computer.
The DVI connection is newer than VGA and it offers a sharper image. Although the DVI port is not shown on the Epson model above, it is still somewhat common for projectors, not so much for televisions. It is mostly found among desktop computers for monitors, but some laptops have DVI connections as well (Apple laptops are more commonly known to support DVI than any other brand of laptop). Since finding DVI on a TV or projector is more difficult, we again recommend using HDMI cables.
Tip: There are special cables that convert from DVI to VGA or DVI to HDMI and vice versa.
The composite video connection is quite common on a TV or projector, but it is nearly nonexistent on modern computers. This connection is the yellow female cable on what is normally a three bundle of red, white, and yellow. The only time you should see this setup is on older video cards for desktop computers.
The S-Video connection is also commonly found on TVs and projectors, but solemnly on a desktop or laptop computer. This connection is a small step up from composite video, but is nearing obsolescence.
Connecting computer and projector or TV
After you've identified what connections are available on both your computer and TV or projector, you're ready to connect the cables. If the same connections are not available for both the computer and TV or projector, you'll need to purchase a video converter cable that converts one signal into a compatible signal.
For a desktop, you simply need to plug the cable into the computer and output device. If you don't see an image, you may need to change the display using the following steps.
Press the Windows Key.
Type Adjust screen resolution and press Enter.
Find Display and click the down arrow on the right-hand side of the box.
If you're connecting a laptop computer to a TV or a projector you'll often need to "send" the video signal to the display device. The key sequence to do this varies depending on the laptop; but usually it's either: Fn + F3, F4, F5, F8, or F9. For example, pressing and holding Fn + F3 at the same time on my laptop sends the video signal to my connected TV instead of the laptop's screen. The corresponding key used with Fn may be labeled as CRT/LCD or have a picture of a monitor on or close to the key. Additional help and information with switching the laptop display can also be found on the link below.
Switching TV inputs
Finally, if you're connecting a computer to a TV make sure it has been switched to the correct input. For example, if you connected an HDMI cable to your computer and the "HDMI 2" port on your TV, you'll need to switch to the "HDMI 2" input. This action can be accomplished by pressing the input button on your TV remote until the correct image is displayed.
you need to check: the Vga cables if the image shown is that from a computer firstly check if the Panasonic logo comes ok in the beginning if ok then try connecting a laptop directly thru a short patch cable to the computer port of the projector[i am assuming that the projector has been installed to the ceiling] if this works ok , then the projector is fine! you need to figure out the problem with the vga cabling and switchers if any of them are used!
I have a possible solution however it may not be THE solution your after, you'll probably be able to tell very quickly if it isn't, this will only apply if you are using either a component video signal or a PC/laptop signal to send to the projector.
If you are using a laptop or desktop to hook up your projector, I would try first of all double checking that it's correctly plugged in, and if you still have no luck try a different cable.
It's likely to be the cable because when the signal goes down the cable it's split into 5 different signals. 3 of these are the colour information for Red, Green and Blue. Depending on what you mean by 'image is blue', it could mean that your either not getting the information for Red, or your not getting the information for Red AND Green. If you want to test this, open up microsoft paint while connected to the projector and create 3 boxes, then fill 1 completely red, 1 completely green and one completely blue. If you are missing the information to any of these colours then that colour will appear black on the projector screen.
In component video the signal is split down 3 cables (rather than 5) and 2 are colours (rather than 3)... Red and Blue. Check that the cable running red (Usually labelled Pr on the DVD and projector) is completely plugged in (some of these are really tight, but it's important that it goes all the way) and also that you have plugged into the correct slot, for instance that you have plugged into Pr and not the right Audio channel, both of which are coloured red.
If you are still not having any luck then I would suggest using a computer monitor or a television (depending on what type of signal your sending it) to test the projector. Plug it in instead of the projector and if it works then the issue lies with the projector and I have at least narrowed it down for you.
it's likely one of two things then. it could be the cable that you are using or the actual jack that it is connected to. i would try a new/different cable first. this is great news as i'm sure you know because a new bulb for a projector is not very cheap!
ok this problem occurs mostly due to the loose connection in the VGA cable between the pc and the projector.. try changing the cable to give any other input and see it and then confirm it... that the color sensor of the projector is weak...