I turn on my projector but don't get any image at all. Not even the blue Panasonic screen. Nothing lights up inside the lense either. The lamp light on top of projector starts to blink red after a couple minutes. Lamp run-time is approximatelly 400 hours. It has been raining real hard with severe thunderstorms. Couple lightning bolts seen to have hit VERY close to our house. Could a lightning bolt have burned out the lamp or could it be another technical problem?
I have a 3 yr old AE900U dont know exact hours but prob at least 2000 hrs. about every other start up, the projector would flash little box; (replace lamp now). now a month later lamp wont come on. So this is prob the normal way a lamp will die. anything else might be another problem.
I have a panasonic pt-ae 900u projector and it is used in a room where we have a wood stove and i am sure it is dirty inside. It got hot and went off several times. It will run for a few minutes now and then goes off. I think the time on the bulb has expired but think maybe it could be dirty. Is there a way to clean it myself or do i need to hire someone? Also, where do i get a bulb that isn't 300 dollars. I can't afford that. Thank you so much. nellie
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You need to remove the cover and check where the lamp light is being attenuated in the optical path from the lamp to the front lens. I would try using a 12volt 50W halogen lamp in place of the real lamp and shine it into the optics system, and see where the brightness starts to go bad.
Other then POWER BUTTON light there are three lights more
1. lamp indicator
2. temperature indicator
3. computer input
witch one light is flashing RED or illuminated RED with POWER BUTTON orange light.
If LAMP INDICATOR light is illuminated RED than lamp runtime has reached 1800 hours. but projector still working.
If LAMP INDICATOR light flashing RED than lamp circuit failure, or abnormal function or lamp unit is damaged. In this case projector doing the same behave just like your projector.
if TEMPERATURE indicator illuminating RED the projector still projecting and if flashing RED than turned of itself
I'm having this same problem. The Ready light is on Green and the LAMP light is on Red. Replace Lamp light is also on. The device turns on, displays the blue SANYO boot screen for a few seconds, then shuts off.
Have never worked on a panasonic projector before I admit, but you get that effect when the 3 LCD panels inside a Sharp (and I assume all brands) LCD are misalligned. To get total black (LCD Projectors find this rather difficult due to the technology) the red , blue and green lcd pixels must be precisely allignend ( they are adjustable by technician and it's a fiddly job) I reckon the green panel is a touch out and it's peeking out between the red and blue squares.
the light filter on the blue lcd is fried and needs to be replaced. it makes sure only blue light comes therough that lcd panel. when it's light is blocked from coming through, only the red and green lights can be seen, hence the yellowness (red light+green light=yellow light). it's common with lcd projectors. unfortunately, you can't buy that piece seperately. you need to buy the entire optical engine, which isn't cheap (almost $2000).
The blue or yellow haze problem in this projector is because of two factors. 1) Dust buildup inside the optics and 2) Fading colour filters used in the internal optical process.
Inside the projector the white light from the lamp is split into three distinct colours of red, green and blue. Each colour illuminates their own monochrome LCD. Those LCDs are mounted on a prism that combines the separate images and displays the result you see via the lens.
The optical process to split the light up inside the projector is fairly complex and involves many light filters and mirrors to direct the light to the appropriate lcds. Those filters and lenses accumulate dust and also fade over time due to heat and other environmental factors.
I know that sharp sells replacement filters at $100 a piece. I do not know if Hitachi sells replacements.
To remove the dust and change filters you have to take apart the projector in a fairly complex way. I do not suggest that the average user do this. Good luck!