Question about Optoma EP7155 Projector

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My Optoma EP7155 DLP projection turns magenta

My Optoma EP 7155 DLP video projector works great for awhile, then suddenly the images or video turn shades of magenta. The image on my computer is normal-colored. The projector has not been changed from default color settings - at mid-range. When I use it the next day, it's fine. Any ideas?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: OPTOMA EP716

ALSO CHECK YOUR FAN. IF THE FAN OR A HEAT SINK IS NOT WORKING PROPERLY (I.E. THE FAN MAY JUST NEED TO BE CLEANED OR REPLACED, THERE SHOULD BE A SMALL HEAT SINK. IF CLOUDED W/DUST, IT WILL KEEP THE OPERATION SHORT). ALSO CHECK IF YOU HAVE SET ANY TEMPERATURE SHUTDOWN PARAMETERS. IF YOUR LAMP HEATS UP FOR SO LONG AND REACHES A TEMPERATURE THAT WILL AFFECT THE CIRCUITS, THIS OF COURSE WILL SHUT DOWN YOUR UNIT UNEXPECTEDLY. HOPE THIS HELPS...JGUAM

Posted on Apr 05, 2008

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Marrie
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SOURCE: Optoma EP 732H Blue/purple tinge

Hi jmm521

Try using a different VGA cable as connection - WILL solve your problem !

Thanks for using Fixya !

Posted on Apr 30, 2008

SOURCE: Help needed for Optoma EP 719 DLP PROJECTOR

picture upside down

Posted on Jul 28, 2008

dgostl
  • 5 Answers

SOURCE: optoma EP 738

Also make sure the bulb replacement cover is on, cause there is a little switch that cuts power if the cover is off.

Posted on Sep 21, 2008

  • 3 Answers

SOURCE: color problems

i don't know if this will work but..... I have an Optoma h27 and we were having problems with the color and ours is mounted on the ceiling in inverted also; and after two years we started having color problems, come to find out that on the menu there is a option for high altitude and that had been turned to the "off" position (probably by our kids resetting all the options and not turning this one back on)..... after taking it to a tech that cleaned it for $97.00 and said there was no problems he could find, we played around with the remote/menu and came across this high altitude option and when we saw it was on the "off" position, we put it to the "on" position and another fan inside the projector came on and that helps to keep the inside of the projector cool at all time and helps from the color becoming weird..... Try this on yours and hopefully that will solve your problem.

Posted on Dec 22, 2008

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Check the Projection Setting on the Setup Menu of the OSD.
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hi,
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Hope this helps

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