Question about Sanyo PLC XU48 Multimedia Projector

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Pink/burgandy dots or shadow on display screen

Our church has a new PLC-XU48 - has 70 hours on the lamp life. we use for both video and text display. Last night when we switched from video to text; we notice a big area on the bottom right corner of the screen with a lot of pink or burgundy spots that changed color of display. Thanks

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Normally one of 2 things will cause this.

  1. One if the small LCD panels inside has dead/stuck pixels. There are 3 individual panels that make up red, green and blue.
  2. Dust has entere the system and is sitting on the back of the polariser. This is a thin colour film ontop of the small LCD panel that sends the right colour light through the LCD.
If it's the first one, then it will be covered under warranty.
If it is the second they will normally cover it under warranty since their dudst filters have failed to keep the dust out of the projector.

Call the number in the back of your user manual for your area and they will arrange it all with you from there.

Posted on Apr 19, 2008

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1 Answer

Pink/burgandy dots or shadow on display screen Our church has a new PLC-XU48 - has 70 hours on the lamp life. we use for both video and text display. Last night when we switched from video to text; we...


Does it go away when you switch back to Video? if so then the issue appears to be related to the text mode. Text mode is usually for showing microsoft office documents from your PC, that kinda thing. If you have text within a video then you should leave it on video. It is normal to get the odd pixel burn out and the colors change and look pink or bright, in your manual it will say what the acceptable limit is usually less than 1% i forget what the norm is but a possibility some of the pixels have burnt out, i doubt this is a bulb issue as the bulb just projects what is sees on the small display screen inside. Check the lens is clean, if the item is under 2yrs old you are actually covered regardless of what warranty came with it, more so if you purchased this using a credit card, see martins money shop website for details of how to make a claim via your bank to get full refund, all electrical items are covered for 2yrs against manufacturing faults. You can try resetting everything to default and see if this helps.... another tip, never turn the projector off at the wall straight away after using, you must let the bulb slowly cool otherwise it can break, so always power off with remote or power button then wait until the bulb and fan has stopped before turning off at the wall to prolong the life of the machine. If the issue was the bulk you would not be seeing anything, sounds more like an issue with the mode and media your using but if the spots appear all the time in all modes then it points more towards a manufacturing fault, the display being burnt out in parts, thats my guess.... although if this is the case the fault will show in all modes.

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It sounds like the lamp is going.
Do you know how many hours of use are reported on the lamp?

Many times these projectors have circuitry to shutdown when they suspect the lamp is near the end of life. Lamp hours vary and usually will go up to and even beyond expectancy, but there is occasions you can receive a bad lamp and have it blow in a matter of hours...not common but it does occur.

I hope this helps,
Magoo

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There are 2 possible causes.

The first may be due to overheating. Most projectors have a "air filter" that can be removed and cleaned. If it gets clogged with dust over time, the projector can't breathe and shuts down.

The second cause may be your lamps life hour clock. Most projectors keep track of the amount of time that their bulbs have been active. Once a preset # of hours has passed the projector will limit functionality until a new bulb has been installed AND the lamp life clock reset. Most projectors do not automatically reset the lamp life clock after a new bulb is inserted.

There should be instructions on how to reset the lamp clock in your users manual, and info on cleaning the air filter. Unfortunately I went to the Sanyo website and was unsuccessful in locating a PDF of the user manual for you.

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I do not have remote. Church inherited projector.


Hello

Thank you for using
FixYa for your problem


  1. you need to enter factory Menu.

    You do so by doing the following:
    1).Start the projector.
    2).Press keypad <Source> and <Auto> keys simultaneously, enter " Lamp Hour info" layer
    3). Press <Source> and <Auto> keys simultaneously again, then enter factor menu.
    Do not change anything till you reach Lamp Layer where lamp hour and usage hour is given. If you reset, then all data revert to default - factory reset. you may chage here or under (2).
    Let me know if this solves your problem.
  2. - Press exit for 3 seconds
    - The Menu to reset the Hours rises up
    - Folow the manual on your screen

Please rate our solutions and if you still have problems please call back for more ideas to help you

Thanks
Richard Scott
Technical Support
New Zealand

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My display is pink & fuzzy.


You could have a faulty CCFL lamp or inverter, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out
www.lcdparts.net
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