Question about HP Compaq MP1800 Multimedia Projector

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Compaq mp 1800

I have a purpleish hue on everything. The picture is otherwise OK. The color adjustment does nothing to correct this. It started all of a sudden

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Most likely a bad cable. Try bending a little bit of the wire at a time and see if the color flickers back to normal, or you could just by another cable and see if that fixes it. Happens to a lot of the projectors I support.

Posted on Jul 31, 2008

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Posted on Jan 02, 2017

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How can i adjust colors in konica c450


HI ganesh,
Instructions
    • 1Go to the Application screen on the LCD panel located on the printer and press on "Edit Color." Press on "Color Adjustment."
    • 2 If unhappy with the hue of your copy, press "hue." Look at the 'hue" screen and press the arrow keys in the direction you wish to change the color hue. Press "Sample Copy".
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    • 3 Take a sheet of paper and place in the top left corner of the glass surface of the Bizhub. You will see that the area is marked "Sample Area" alongside the glass area. Press the "Start" button on top of the Bizhub.
    • 4 Wait for the Bizhub to produce a sample sheet. Look at the finished sample sheet -- there are six options showing three incremental "plus" hue options and the three incremental "negative" hue options. Select the one you like and press to confirm the required hue adjustment on the "Hue" screen. You have now calibrated your colors as desired.


Read more: http://www.ehow.com/how_7590176_calibrate-colors-konica-bizhub.html#ixzz316wHLgOK

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The picture is so dark can't make out figures


It sounds that the back-light section has some fault with your TV. Otherwise, 30% brightness, 60 to 65% contrast, and 20 to 30% color settings should give you perfect picture.

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1 Answer

The picture on my Sony kp57hw40 has bluish hue to it. It is more visible when what you are watching is darker in color or lower in light. I have tried to adjust everything (color, brightness, etc,etc)...


I have first some information for you and then a possible solution.

A lot of these sets had problems with the 3 picture tubes---blue seems to be the most common--if you go to a unused video input and see anything other than Input 1 etc like blue background or even blue curved faint lines do not despair.

There is a fairly easy way to adjust this (not with the remote) I can tell you the procedure and it requires no parts and only moderate skill.

May I assist you here?


SD TECH

Oct 26, 2011 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Both the picture and sound work when the TV is turned on, yet the picture is distorted like a double picture and has a yellow hue to it.


Sounds like you have a convergence problem. If you go into the setup menu of your TV, there should be some settings to adjust the red, green and blue hues and re-position them so each color matches up. If this does not work or if you don't have a menu, your TV *might* have a circuit board with several plastic screws on it. These adjust the picture and it's a very tedious task to re-align each hue correctly.

My projection TV is an older model from 1995, which is probably why it has this circuit board in place of a convergence menu built into the TV.

If adjusting the convergence still doesn't work, you might need to purchase a new convergence chip.

May 20, 2011 | Sony KP-51WS520 51" Rear Projection...

1 Answer

Sharp XR1S It projects the image on screen, use to show the correct color. last time the image was projected but in pink hues. is this an adjustment issue or is the lamp going or gone?


hi,
first of all check the tint setting on your projectors picture menu.
if not get the correct color then, your projector is a dlp projector that means it have a color wheel in side. if the synchronization of color wheel is not correct this problem can occur. there is a sensor for couting the rpm of color wheel. also have a black mark on the color wheels rotating portion. the sensor scene this black mark for making count. if there is any dust in that portion it will make difficult to the sensor making the counts. you have to remove the color wheel to clean the same.
i have added a video how to clean the color wheel . not the same projector.
ok

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I need to know something first. If you print a test page, an internal page, a confirmation page, menu page, etc, does the machine give you a green hue ?
Have you tried to shut the printer down and allow it to reboot? There is tec color correction on your print driver properties. You can try adjustments with that.
But first let me know if the internal prints are ok , then lets go from there.

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It sounds like the Optical Block is causing the problem. Due to the cost of the part, ( around 600.00), I would contact Sony at 1800-222-SONY and see if the would be willing to help out with the repair cost.
I hope this helps,
Skyassoc

Oct 28, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Just changed ink everything is purpleish pink esp3 kodak printe


Hi,
Pink color usually indicates, color cartridge bad,
Try cleaning nozzles, head cleaner, alignment, calibration
Print off a test page,
If still bad, New cartridge, it's a bad one.

Hope this helps
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1 Answer

Uneven Color on JVC Projection TV


hello i have a jvc 52" made in july 2004 replaced bulb twice under warranty plus replaced ballast board in 2005 replaced bulb dec 2008 my tv was before and after install having a blue hue reversed words

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1 Answer

Laptop screen flickers and color is distorted


Sounds like the CCFL is failing.. (Backlight)... Pink hue is common when these start to go out..

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