20 Most Recent NEC NP200 Projector - Page 8 Questions & Answers

If it is a single line, one element burned out on the LCD. If it is a wide band, the LCD or the element driver is defective.

Hi Ron usually power down issues are caused by faulty power supplies especially if the projector looses power completely however the logic board could be protecting itself if it detects a fault such as a fan not working either way it is not recommended that you try to fix it yourself unless you know what you are doing, but it may be worth removing the cover and checking that the fans are working and connected properly, occasionally the lamp can be at fault especially if it has been used for many hours if the projector tries to power up and you see light through the lens and then it looses power its probably the psu at fault, if it powers up then goes into standby of fault then its most likely a logic issue. I hope this helps Regards Ant

Does your projector take lot of time to shut down? May be because it take a lot of time to cool down.
The main culprit would be dust, blocking the air vents/air filters. Use a 1/4 inch paint brush to clean them.

which model

Hi

Please download User Guide and Attendant User Guide from the links---

User Guide

Attendant User Guide

Hope this helps...please post back for further assistance.

Daniel

Which model NEC machine do you have

you will have to contact them and ask them to save the file as a image file instead, the only way , that i know how to open that filetype is by using NEC's scanner software, which created it

If you are talking about the actual image that is coming from a laptop being yellow instead of white, then this is caused usually by a bad signal cable running between the computer and the projector.
To be more specific: All colours in a projector get made up in some way between red, green and blue. White is all of these colours at maximum, yellow is made by red and green at maximum but no blue. If your image is Yellow when it should be white, then the blue signal information is not reaching the projector. This can also happen within the projector or computer itself but is less likely. If your using a VGA cable (15 pin cable) then blue is run through pins 3 & 7 (positive and negative respectively), see if your cable is either missing these pins on either end or if they are bent, although it's more than likely within the cable itself. You can test this theory easily by trying to put something blue on screen, if the blue signal isn't getting through then it'll appear black.
If changing the cable doesn't solve the problem try testing the computer by trying to use a different one, and test the projector by plugging in a monitor or another projector.

If you are getting a yellow screen without sending signal and just trying to get the "no signal" or "no input" screen white, then this won't be the case.