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1, the interface of inputs is defective
2,adjust the resolution of the computer
Have a good day!
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1:Make sure that your power switch is off and that the power cord
is unplugged from the electrical socket. It is also wise to unplug
any other cables and label them in order to restore them in the right
way once the lamp is replaced.
2:In order to see the lamp, remove the access handle on the
outside cover. You may need to use a screwdriver.
3:Pull out the used lamp and clean the relevant parts using micro
fiber products and not paper. Please note that in some projectors a
small inside filter should also be replaced.
4:Insert the new lamp into the projector carefully avoiding
touching the glass of the lamp itself. Touching the lamp will deposit
skin oil that will likely damage any new lamp during use.
5:Reassemble the access panel, replug the cables and power up the
Things You'll Need:
new projector lamp
micro fiber duster
avoid touching the bare projector lamp.
turn the projector on. open the menu. go to advanced. scroll down to the first option which should be auto source. make sure this option is checked. while on this option press right once, left twice, right 3 times, then left 4 times. another menu will appear. scroll to lamp time and push enter. this will take it back to zero.
I have the same problem before. I found a replacement fan. A computer chassis fan works perfect. It should be 60mmx60mm - plenty in E-bay for about $5.00. Very easy to open the unit to replace the fan. It has 2 fans in a rubber housing. Check which one need replacement.
This is known as 'cycling' and is common with mercury-vapor bulbs nearing end-of-life. When the bulb first starts, it glows dimly and grows in brillance. As the light grows, the pressure and temperature of the bulb also grows--increasing power demand. After a short while, the demand exceeds the ballast limit and the bulb extenguishes until the temperature (and pressure) drop again. Then, the cycle starts over. Bottom line: you need a new bulb (or, the correct bulb).
It can be a problem with teh bulb...you may want to make sure that the fan is not shutting down when you power off the projector becsue that may shorten the life of the bulb,...the fan should remain on for a while to continue cooling off the bulb....it probably won't hurt to have use another fan pointing to the projector while in use...