Replaced my 2yr old ax200 with new ax200.. - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 16 Old 03-26-2010, 04:34 PM - Thread Starter
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My old unit had 6000 hours on it and the blue polarizer was bad. The new unit is so nice and bright!
I took apart the old unit and inspected.. Just the blue polarizer is funky. Besides some dust creep everywhere else, all looks good. I'll order the BP Monday or Tuesday.
I'm trying something different to try to make this unit last longer. First stay in Eco mode with the altitude set to high and then to never use screen saver.
I've always wondered what effect heat and light has on the internals when stuck on mostly black. We will see.
The new unit was manufactured Feb 2010, two years (exactly) newer than the old.

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post #2 of 16 Old 03-28-2010, 03:35 PM
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The reason why they die is simple - on black scenes, the OUT polarizer has to absorb ALL the light that is passing through the LCD. The only way it does this is to convert it to heat, and the heat kills the organic polarizing material.

Screen saver mode (blue screen) is actually beneficial to the polarizer, black is bad hmmmkay. Eco mode will help - less light to absorb, less heat to generate - as will increased cooling - clean those filters often.
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post #3 of 16 Old 03-28-2010, 09:05 PM - Thread Starter
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I'll be quite a bit more carefull with the new unit...
While removing the top board one of the cable assemblies self destructed (cable block broke in half top and bottom) so I am going to solder them back on.
I was really surprised on how much fine dust gathered on the optical block though.
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post #4 of 16 Old 03-29-2010, 06:24 AM
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man have to say, 2 years and 6000 hours is pretty good haha. i have aroudn 2020 hours on my current projector using as a tv the last 10 months, and i thought i was using it a reasonable amount, on every night after work, in morning, on quite a bit during the weekend.
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post #5 of 16 Old 09-04-2011, 05:15 PM - Thread Starter
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In economy and high altitude mode and never seeing a screen saver.
Picture is still good but I'm starting to have some bulb strike issues. Three times it took the Panny over two minutes to start and one time I had to unplug and restart. I have a spare bulb I will install at 3600.
No flicker problems for the life of this unit.
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post #6 of 16 Old 11-26-2011, 08:36 AM - Thread Starter
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I just hit 4000 hours on the original bulb. No starting issues since September. The screen is as perfect as ever with no flickering or dust blobs.
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post #7 of 16 Old 06-01-2012, 01:07 PM - Thread Starter
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I just hit 5000 hours on the original bulb. No strike errors or flickering of any kind. The display seems bright and no discolorations.
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post #8 of 16 Old 10-28-2012, 01:31 PM - Thread Starter
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6000 hours on the same bulb. Everything looks fine. Going to change the bulb just because it sounds like a good idea!
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post #9 of 16 Old 10-29-2012, 02:13 PM - Thread Starter
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New bulb at 6000 hours and I really don't see any difference. Of course I run in ECO mode in a light controlled room.
I'll see if my wife notices any difference.
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post #10 of 16 Old 11-04-2012, 10:59 AM - Thread Starter
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Okay.. On all white scenes we are just starting to get some slight yellowing in the center. I figure ani=other 3000 hours before it gets as bad as my first unit.
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post #11 of 16 Old 05-19-2013, 08:35 AM - Thread Starter
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7500 hours and very slight yellowing in the center. If you didn't know to look for it, you wouldn't see it. At 6000 hours my last ax200 was terminal.
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post #12 of 16 Old 10-03-2013, 12:57 PM - Thread Starter
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8500 hours and all is the same.
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post #13 of 16 Old 10-03-2013, 09:10 PM
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some serious lamp life there! i've been trying to upgrade my AX200 for going on two years now, but I can't find anything for ~$1,000 with lens shift and 3D. frown.gif
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post #14 of 16 Old 11-21-2013, 01:28 PM - Thread Starter
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9000 hours total on the machine, 3000 on the second bulb. Nobody notices the yellow blob but me! At 6000 hours, everybody noticed the huge yellow blob on my old ax200.
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post #15 of 16 Old 11-28-2013, 07:15 PM
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I must be around the 10,000 hour range and definitely have a big yellow blob but it's only visible with a white image. When you look from an angle it's pretty pronounced. Great projector that has served me well.
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post #16 of 16 Old 03-04-2014, 09:26 PM - Thread Starter
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Getting real close to the 10K mark.. Just ordered a PT-AR100U.
The yellow blob is still not all that bad. Good to have a running spare just in case!
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