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1,the color starts to go out, it become the white and black,the color is disappear.
2,then,the projector running off after only a few minutes,
it is a general issue:the inductor need to be cleaned
Use a cotton swab moistened with alcohol to clean the inductor.
the inductor (Sensing element),is near to the Color Wheel.
the industor : is a black little element,as little as 3 sesame seeds
any questions, feel free to contact me
have a nice day!
Pretty sure it the bulb as most are rated at 2000 hours; but also check for full air flow - clean filters etc. Bulbs can run hotter as they age, so air flow is more important, because there is an inside heat sensor that will shut the machine down.
My Optoma ES522 keeps blinking all the colors of the rainbow and then going to grey. It seems that's the color wheel problem. You can fix this by your own. Probably the dust covered the color wheel sensor so it doesn't spin at specific speed.
And the project is now telling my lamp is at the end of it's useful life. How much will it cost to replace that? You can switch off lamp reminder in OSD menu settings. This reminder is usually set to approx. 1200+ hours. When you exceed this limit, reminder starts to pop up. Actually it doesn't tell anything about PJ's lamp condition. So that doesn't mean that something is wrong with your lamp, maybe it lose some brightens, which is typical phenomena wheen exceeding half of lamps lifetime.
GENUINE new lamp costs around 160-180€, COMPATIBLE COPY should cost around 100€ +
I have solved the problem (running fine for 10 days now) I was planning to replace the bulb, but after reading the different posts, i understood it was NOT in cause.
i had to open the projector, remove and clean every part : - the motherboard - very dusty alim parts (radiators) - the big fan blades (i used silicon lubricant for the rotor) - the optical block - the TINY RADIAL FAN IN THE OPTICAL BLOCK (very hard to clean)
advices : 1/ take pictures of what you're doing 2/ tape well the folded plastic and aluminum parts to avoid light leaks !
DONT THROW AWAY YOUR BULB JUST YET!!! IT MAY BE THE COLOR WHEEL!
I have an optoma hd70 and was having the same problems. I also tried the "dust blob" tutorial, but unfortunately it did not work for me (and I ended up getting dust on the lens I couldn't get off myself). I started searching on the net for more answers and found some information regarding the angling of the projector. Apparently, if you tilt the projector with the back raised too high, the ventilation system does not work properly and this increased amount of heat damages the color wheel inside (this causes the wheel not to spin correctly and display a flickering effect...and that's also why it works for a few minutes on start-up but then gets too hot and the wheel skips and creates the flicker).
Luckily, I have a very extended warranty and was fortunate enough to send it in and have the dust removed & color wheel repaired/replaced. Now, I've lowered the stand for the projector to not have it tilting at such a high angle and haven't had any problems yet...but it does take awhile to get effected (had mine for about 1 & 1/2 years)
I know I should have probably just sent it for repairs in the first place...but who wants to miss out on having a projector for two weeks when a tutorial says I could've fixed it in like 20 miutes?!?! Oh well. Hope this helps someone...good luck;)