View Full Version : Best way to clean LCOS Mirror?


GoCaboNow
03-28-08, 12:58 PM
Hi all. I have studied page after page of rear projection posts and have seen many references to cleaning the mirror on an LCOS or DLP TV and the advantages there of. But no where can I find detailed descriptions of HOW they are actually doing it and any experience gained. I just changed my second bulb and noticed a bit of dust build up around the sides of the bulb but not covering the face of it. It is hard to see the mirror Still, I have to figure after 3 years there has to be some dust on the mirror and a cleaning is in order. The picture still seems pretty clear for ota and bluray content...but is it as clear as it used to be?? I have a JVC HD-70G886 but any experiences and insight are welcome!

airgas1998
03-28-08, 05:49 PM
Hi all. I have studied page after page of rear projection posts and have seen many references to cleaning the mirror on an LCOS or DLP TV and the advantages there of. But no where can I find detailed descriptions of HOW they are actually doing it and any experience gained. I just changed my second bulb and noticed a bit of dust build up around the sides of the bulb but not covering the face of it. It is hard to see the mirror Still, I have to figure after 3 years there has to be some dust on the mirror and a cleaning is in order. The picture still seems pretty clear for ota and bluray content...but is it as clear as it used to be?? I have a JVC HD-70G886 but any experiences and insight are welcome!

is to not do a thing.....

stronglooper
04-06-08, 04:40 PM
Plain and simple: it is the easiest, most efficient, and cheapest way to ensure your tv looks as good (if not better) as the day you bought it. You may spend upwards of $400 on a new bulb (and/or assembly) but this only changes the brightness; it doesn't affect how your tv looks in all light levels. Those of you who watch HD a lot know what I mean when I say the screen "pops"; as in, it jumps out at you, like you could walk right into the picture it's so clear. That's what my tv looked like when I bought it (in 2004, a 62" WD-68725 Mitsubishi) and the way it looks today after I cleaned the mirrors.
I did it by having my neighbor come by and helping me remove the front screen via 10 screws. Then we detached the front buttons via a simple cable and voila!; the inside of your tv (a lot of space in there, actually) presents itself. All I did then was clean the back mirror with a microfiber cloth, the front mirror, Swift all the way around, use compressed air (repeat the process about three times) and then close it all up. It really does look EXACTLY like the way I bought it.
I plan on doing this about once a year or whenever the screen looks blotchy and dim. If you had Circuit City or Best Buy come out there and do the same 45 min procedure, it would cost you about $300 (then agin, they charge people $50 to install anti-virus, so I'm not surprised).
People, it is EASY - trust me - don't let the size of your tv fool you - 45 min and you're done - don't settle for anything less!!!

GoCaboNow
04-07-08, 05:03 PM
Good for you Stronglooper!

GoCaboNow
04-09-08, 12:05 AM
Well I cleaned the first lense or glass that is directly in behind the bulb. Relatively easy to get to. And surprise - the picture is noticably sharper!
When I shine a flashlight through this glass lense I can see the mirror. It is completely enclosed. There is probably a simple way to get to it but I cannot see it from the front of the tv and it is a real pain to get behind the tv and I do not want to do too much exploring without knowing what I am doing. The picture really is better now and I am amazed at how close it looks in PQ to the 265t LCD I just got for the BR. Still, I wonder how much better it would look if I could clean the mirror?? Since it is out of warranty I am trying to see if JVC will give me any instructions on getting to the mirror. This is a
HD-70G886 model so if anyone has done this on any of the 886's or other JVC's I would love to hear.