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Sanyo Projector/ No Red in Display

We have a projector that is not showing reds, oranges, etc. but the blues, greens, and yellows are vibrant???I checked all settings from the computer and they are fine, and if I hook up another projector there is no issue.

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  • lagavuln Mar 24, 2009

    Our Optoma EP719 stopped showing the red channel too... am surfing for a fix... hoping we don't have to replace the whole thing.

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Make sure the resolution matches. you also may have a port issue on the computer.

Posted on Dec 23, 2009

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My projector has lines on the screen. new bulb didn't help


If this projector is connected by Component Video (3 or 5 wires) instead of HDMI, the most common color related problems are caused by having one of the 3 video cables (Red, Blue or Green) with a bad connector. If everyone is a green smurf the problem is with the red cable. If everyone is a red smurf the problem is the blue cable. If the green was bad you wouldn't see anything.
Another possibility is if the green is plugged into the yellow jack instead of green jack on the projector, you could see what you are describing.
If everything checks out, take the projector to a repair facility.
If you are connected by an HDMI cable, (combined with the fact you mentioned vertical lines not horizontal) then take the projector to a repair facility.
All of this assumes that you don't just have a bad Cable Box or Blu-ray player or Home Theater Receiver. (The source)

Oct 01, 2014 | Dell 1210S Projector

1 Answer

I hv Sanyo PLC-SU07N Projector - the image is blue


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.

Hope this has been helpful.

Mar 28, 2011 | Sanyo PLC SU07N LCD Projector

2 Answers

Large dot in the middle of the projected display


there is a burned-in spot on the polerizer light filter for the blue lcd. it makes sure the light is blue coming through, that's why it is black on a blue screen, and yellow when the red and green are the only light showing through. it needs to be replaced. pat # PFiLW0213CEZZ.

May 21, 2009 | Sharp XG-E3500 Multimedia Projector

1 Answer

Same problem w yellow on viewsonic pj550


Yellow is the mixture of 100% red and 100% green. what you may have here is a blue LCD failure in the machine. Try this to check. Open up PAINT and double click one of the colors on the bottom. now click add custom color. then in the RGB section put 0 for red 0 for green and 255 for blue. ok out of everything and fill the background w/ the blue. it should be a VERY intense blue, if its white or or kinda blue, you have an LCD issue

Apr 13, 2009 | ViewSonic PJ550 Multimedia Projector

1 Answer

Projector lamp shows blue on white screen


the red is cutting out. white=blue+green+red. without red, you get blu+green, or cyan. if this was an lcd projector, i'd say it's a burnt light filter, the red lcd, or the lcd has come unplugged. but since this is a dlp projector, you have either a dmd board issue or a main board issue. either way, it'll be pricey.

Feb 18, 2009 | InFocus LP120 / 1000 Lumens / XGA / DLP...

1 Answer

Faded color display


replace the colorwheel.

Jan 27, 2009 | Eiki EIP-3500 DLP Projector

2 Answers

Sanyo PLV-Z3 Multimedia Projector problem


This could be due to one of the three filters that are easy to change - download the free pdf service manual - not the user manual - it is very descriptive and the filter is about $120 from Sanyo.

Jan 16, 2009 | Sanyo PLV-Z3 Multimedia Projector

1 Answer

Sanyo PRO xtraX Multimedia Projector Mod.# PLC-XP1ONA


this is the normal condition> only when green led is off and warning temp led(yellow) is on something is wrong!!

Jun 08, 2008 | Sanyo PLC XU35 Multimedia Projector

1 Answer

Bright yellow


I can't imagine a setting that would cause this - It sound more like some sort of fault with the projector's blue LCD panel. (The image is created from a mix of red, green and blue light. If you loose the blue, everything will look yellow.)

Is it capable of showing any shades of blue?

Using any graphics or photo-editing software, create a solid blue image (R=0, G=0, B=255 in your colour settings) and if possible, display this full-screen. Is there any output from the projector at all when you do?

If not, it sounds like it need a professional repair.

Matt

Feb 26, 2008 | NEC VT676 Multimedia Projector

1 Answer

Colour problems with projector


In short If the reds show as red, The greens show as green & Blue shows as blue. I would say thats as good as it can project. It's hard to judge color without seeing it for ones self but usually DLP projectors that use a colorwheel do not have perfect color.

Feb 13, 2008 | Office Equipment & Supplies

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