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All projectors have self dioganisng function. If there is any malfuction inside the projector it will indicated by the LED blinking. You have to inspect how many time the LED blinks or which LED lights condinuosly. LED meas the power light or the lamp light. Then only anybody can suggest you a better solution.
either the optical parts close to the lamp are getting old and heat affected, or the focus lens system is dirty etc.
switch off the unit and disconnect the power.
remove the lamp. remove the cover off the whole projector.
get a 50w halogen lamp (like in the ceiling of the house) and connect it to a 12v supply.
Then carefully put it into the cavity where the lamp normally goes. and shine it in the direction that the lamp normally shines. be carefull not to burn yourself and the bits inside.
check the strength of the light as it goes through the various sections of the optical path.
see where the brightness seems to drop right off. see if there is any components that seem to degrade the light strength.
this may give you a clue as to where the problem lies. you can then decide what the next step is.
tell us how you go.
Old film projectors had a spinning disk with cut-outs in the light path (looks like a fan, but flat). This blocked the light when the film was moving between frames, then let it shine through when the film was stationary. It sounds like this disk has become stuck or is not being driven (another belt?).
I will assume from your description that the projector is powered on and you can look in the rear vents and see the lamp illuminated, yet the light does not shine on the screen. The Ektapro 9020 and most of the Ektagraphic line of projectors are equipped with a "dark shutter". What that does is keep the screen dark unless a slide drops into the gate. At that time the sensing circuits trigger and open the shutter, allowing light through the slide & onto the screen.
Try resetting the projector by pressing and hold the two Keystone buttons, then turn ON projector. Hold down the two Keystone buttons for 15 seconds, then turn OFF projector.
Turn ON projector, the new lamp should strike.
Hello, Well there are only a couple of things that could cause this problem. However considering this all started when it was mounted consider the possibility you may have used screws that are too long and are is/are subsequently shorting something out.
I answered this question many times. This is caused by a failed color wheel sensor. It faile gradually, first the lamp flickers, sometimes go dim for no good reason. Finally the lamp will not strike and you will get two red warning lights. I am factory trained and I stock the redesigned senor.