Hi, I have an Optoma 1690 which has strobing - standby/on, temp and lamp lights. This happens as soon as it is plugged into power. Then after doing this for about 5 min, on the stanby light flashes once a second. All lights strobing, then only standy light flashes. What is the meaning of this please. Max

if you projector auto shut down, and Lamp LED Light - Check Lamp - Check Lamp Driver - Check Main Board b. Temp LED Light - Check Thermal Sensor - Check Thermal Switch - Check Fan

On an Optoma DV10 if its not the lamp timer, then it might be a cooling fan that needs replacing. Take out the old one, and look-up its part number online. If you don't feel confident taking it apart, have a qualified person do this.

seems that the lamp is defective, pls test it

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The projector lamp life may have exceeded its safe limit, check your instruction manual, sometimes you have to hold the on or off button for 10 seconds to reset this. All manufacturers are different but that may be the problem.

Here is a copy of the manual, I havn't read it, my solution is from experience of other projectors.

http://www.myprojectorlamps.co.uk/projector-manual/Optoma/EP1690.html

Good luck

I wish you had received a relevant answer to your question, as I'm experiencing exactly the same thing here. Not sure is this site notifies people when they get responses, but did you ever figure out what the problem was?

Did you find a solution to this problem? I have the same thing with my Optima 1690...

you need to reset the lamp timer, usually done by holding some buttons while turning on

what i would do is crack into the tv and watch the individual parts being careful not to unplug anything while you take the back panel off.....turn it on and see what happens. let me know what happens

This same thing happened to me, I removed the bulb and put it back in, it reset something and I was able to use the projector again.