The lamp turns on for a couple minutes and then turns off. I suspect the unit shuts the bulb off when the fan does not power up.
SOURCE: Optoma EP755 new lamp when power standby button
you need to reset the lamp timer, usually done by holding some buttons while turning on
SOURCE: optoma ep719 will not power up
Try this:
There is a stuffed 10v 3300uf capacitor on the power board. You need to replace it.
Bellow you can check in the picture where the capacitor is located.
Notice that in this picture I have already took the bad capacitor out and replaced with two small cords to reach the bottom and test the new capacitor.
To reach this place is not fast, several layers of plastic and metal must be removed, but is not a hard task to take the capacitor out and replace it for another.
It works just great! Now it is back on track with awesome image.
SOURCE: I have the Optoma ep719 and it will not power on.
some dry out, and you can't tell by looking at them. see if the colorwheel is spinning. if it chirps before it shuts down, or if it doesn't spin at all, replace it. otherwise replace the ballast.
SOURCE: Optima EP719 won't power on - when power button
check that the lamp is on securly and that the cover is on securly too.
Check Thermal Sensor or Thermal Switch and Check Fan
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