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Re: I want to remove the picture tube of a projection...
There are three picture tubes in a projection set.
Remove the front screen and you can see the 3 lenses. There is a steel frame they are mounted to and you will see bolts around that frame. remove all the bolts and lift the completeassm. up. Disconnect all wires to the yoaks and picture tubes and lift the tubes and lenses out. then you can separate the tubs from the lenses.. be carefull as there is a coolant between the projo lenses and the tubes. this stuff is messy so don't do it on you front room carpet. If you get the coolant on you was it off with Windex
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The LXI or Sears brand used philips TV's. These sets are known for bad coolant fluid. In between the picture tube and their lenses is a layer of clear coolant. Over time the coolant breaks down and causes the picture to become blurry. This can be a complicated repair involving removal of the picture tubes and lenses. Have a repair shop check it for you. Thanks for using fixya.
You may want to recheck your connections coming off the blue tube to the board. Also check the IC links/Pico fuses on the power board. I have a repair manual for this Tv if you need it. email@example.com
Its more than likely the two convergence ICs STK392-560 and the 12 4.7 ohm 1/2 watt resistors that need replacing. Thats a common issue in all rear projections. You can get replacement ICs and resistors at the following link with free instalation instructions with pictures. for 1200 you could replace every board inside your TV almost twice. I wouldnt recommend using sears to fix your set. Drop the people at this link a email and state your problem and model number. http://servicemanuals.vstore.ca/
I had the same problem, I had a repair man to come out n he told me what the problem wasn that it will cost around $300.00. So i took it apon myself n removed the keyboard behind where the power buttons are. I waited 10 minutes and replaced it then I had no problems for3 years. Now that its started back up i need to replace it, but they don't sale the part n e more. But I found a substitue part on Sears direct parts n the part number is RFR-PTS-28 they look different but work the same. Right now the price is $28.00.
forget anything you ever told about this product
if you unsolder the convergence ics stk pack and the tv stays on then just the beginning of your problems
the vast majority of these tvs have burned fluid in the picture tubes and restoring the elctronics to working is time not well spent
the panel for the deflection circuit ( in the middle)?
would have to replaced if the tv does not power on