Re: Cobwebs behind the screen of a Mitisubishi WT-55809
Wile your in there you might as well clean the mirror and the lenses *and you will see a big change in your picture!
Remove screws from upper back of tv to access this area ..be carefull with the back the mirror is connected to it!Please rate this answer
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you need to take the top back off the tv. and mind the glass at the top of the rear part top it is very fragile, most of the projection tv have a side cover on each side so you can clean the rear of the screen, as you not said what type screen you have i cannot tell you further.
I had the exact same problem and the fix is easy to do. Unplug the TV first of all and wheel it out so you can easily get to all of the rear screws.
Remove the screws from the ventilated back panel (the piece of wood with a bunch of holes in it surrounding the AV connection panel.
Remove the wood panel you just unscrewed.
Remove all screws from the upper plastic case on the back.
Remove the back plastic case carefully. This is a little tricky due to two metal pins that it hangs on. Lift it upwards and you should be able to free it from these pins
At this point you should be able to see the entire workings of the TV, and consequently the massive amount of dust that has accumulated.
Carefully take a vacuum and remove all the cobwebs, taking care not to bump the mirror or the lenses.
First, I used some compressed air to clean off the lenses and then used a clean microfiber towel to remove all the dust from the lenses, the mirror, and the screen on the inside. Make sure the part you are wiping the mirror and lenses off with is free from any dust or dirt or you will risk scratching them.
Reverse the dissasembly process to put the case back together.
I went through the convergance settings at this point and found that they were all out of calibration and as such recalibrated them. Use the mulitpoint calibration for best results.
You will need to remove the screws on the back of the top half of the TV set. This will allow you to remove the top rear half of the TV and give you access to the screen. Make sure you do not break the mirror that is attached to the rear of the TV set. Clean the screen with a damp non-abrasive cloth dry with a dry non-abrasive cloth. When finish replace the back of the TV and tighten the screws to hand tightness.
to packerfan. yesterday i did some thinking. i had the same problem w/ my toshiba 57". cobwebs in the viewing screen. i found the solution to be simple. take the front panel off. it's just held on by some clips. remove the black cardboard cover that protects the wiring. it's simple just w/ a screwdriver. attach a feather duster w/ duct tape to a 2 ft. dowel or longer if your arms are short.there are several places you can go up to dust. i found that if you clean 1/2 of the screen then the other 1/2 you should be done all tolled in about 10 mins. presto! my screen has never looked so good.too bad it's taken me 3 yrs. to figure it out. hope this solution works for you as great as it worked for me!!!