Question about Optoma H27 DLP Multimedia Projector
Hello, My h27 projector is showing dark purple colors. I believe it is time to clean the projector. I've had it cleaned in the past before by a projector technician but this cost 125 dollars for only a cleaning :( Does anyone know of a forum that gives detailed instructions how to clean one of these projectors? I've opened it up nearly half way before (removed the exterior casing from the guts of the projector) but to my dismay could not figure out how to disconnect the blue ribbon wire. I ended up spraying canned pure air into what I could, it worked well for about 6 monthes after but now has started to appear again... Could anyone help me (and hopefully other H27 owners) learn how to clean this projector? Thanks in advance!
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Posted on Jan 02, 2017
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
Well we found the problem……. (but no thanks to the technician who charged us $97.00 to clean it and say there was no problem….) In frustration and playing around with the menu on the projector, we saw that there is an option for high altitude and when we click on that and seen that it was on the “off” position we selected for it to be “on” and guess what? Another fan came on and apparently that fan run constantly to keep it cool inside the projector….. must have something to do with mounting the projector on the ceiling…now the color is back to perfect again...thank god.....we have our theatre/sports room back.....
(I can only guess that my kids hit the reset button on the menu to reset all setting and it turned the high altitude off…) Hope this helps anyone else having similar problems…..
Posted on Dec 22, 2008
SOURCE: I have an OPTOMA H27
if u are using the composite video the try component video. composite video will dive u a dull image than component one. also check the distance between the projector an screen.Make sure the projection screen is between the required distance 4.9 to 40.7 feet (1.5 to 12.5 meters) from the projector.
Posted on Dec 30, 2010
SOURCE: Help! Our Optoma DLP
There is a lense behind the main focus lense that's causing this. Flakes of the colored tint are coming off causing white light to shine through. If you look at your projection, you can see black spots as well, these being the flakes that have re-located themselves. I dug into mine deep enough to diagnose this, to actually replace the little lense would be a little tricky. The unit has to be mostly disassembled. Also I haven't been able to locate a vendor who sells the part. Optoma wants you to send it in so they can do the repair, and won't part w/ these component level parts.
Posted on Nov 20, 2011
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