Re: How do I clean a rear projection Zenith 55 inch TV?

From: TP (to2000ny2000nospam_at_nospamyahoo.com)
Date: 02/07/05 

Date: Mon, 07 Feb 2005 12:01:03 GMT

Thanks Deke. The comment you made of "check the level and
condition of the cooling liquid". Can I buy replacement cooling
liquid? I'll work on carefully getting the screen off to see
which type of mirror we have.

TP

Deke wrote:
> "TP" <to2000ny2000nospam@nospamyahoo.com> wrote in message
> news:gCxNd.32304$MX2.22283@twister.nyroc.rr.com...
>
>> I need some advice on cleaning and adjusting my Zenith 55 inch
>>rear projection TV. It’s about 5 years old and we haven’t done
>>anything to it, but turn it on and watch.
>> Cleaning seems straight forward, blow out the dust vacuum up
>>the mess. Are there any cleaning sprays that could be used?
>>Should I use non alcohol products to clean the lens?
>>Could I setup a mirror and adjust the image from behind?
>>
>>Thanks
>>TP
>>
>
>
> Never, NEVER, remove the top part of the back of a projo TV. Thats where
> the mirror is. DO NOT remove the top part of the back of a projo TV.
> As to cleaning it, its done from the front of the set, by removing the
> screen. Cleaning is best done using warm water and a bit of dishwashing
> liquid, a very soft sponge wrung almost dry (NO DRIPS!), then wiping with
> newspaper. A soft bristle brush is handy also, for removing
> small dead bugs from awkward places. Canned air, and/or a small vacuum
> cleaner will also help.
> Keep in mind that some mirrors are what they call first surface mirrors,
> that means that the silvering is on the side youre cleaning, not on the
> back, like a regular mirror. Scratch it badly, and its toast. Also some
> sets dont have a glass mirror, but instead have a *** of tightly
> stretched mylar.
> If you cant figure out how to get the screen off, you shouldnt be trying to
> clean it. If you do manage to get the screen off, DO NOT try to take the
> screen itself apart with out some serious markings as to how to put it back
> together EXACTLY. Same goes for the lenses on top of the CRTs. Cleaning
> time (I do mine once a year, usually in the fall) is also a good time to
> check the level and condition of the cooling liquid.
> If yours hasnt been cleaned in 5 years, and you manage to clean it without
> destroying it, you'll be in for a pleasant surprise. Dust, cooking smoke,
> and cigarette smoke
> take a terrible toll on picture quality. Good Luck!
>
>
>