Question about Mitsubishi WS-65809 65" Rear Projection Television

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How do I clean this set?

The inner screen is loose and needs to be adjusted as well as needing a good cleaning. how do i do this with this model?

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First,unpluged the ac cord,then open the back cover,after that try to remove all the dust by using the a 2 inch paint brush.after that you need to visuallized the parts or the semi conductor if thres a cold solder,you need to use soldering iron to fix the cold solder or loose connection of the parts.look the wire of RGB or red green blue of the neck board.try to re-solding the connection between the mother board and neck board.make sure, no leads drop to avoid short circuit.


kira_yuk99@yahoo.com
Technician

Posted on Jan 11, 2009

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My TV has color adjustment issues and clearity,I currently do not have a remote for this TV..The picture changes sizes when programing changes. I can access the menu,but it is hard to make changes to any...


The cooling fluid used in those will cloud with age and cause the set to loose focus and cause the colors to be 'blotchy'. A good repair shop can do that but it is labor intensive and expensive.

The picture changing is likely to be the automatic format set in the customer menu.

The trim and screen protector seems to be NLA (no longer available). Any clear, clean piece of plexiglass can be used, Make it larger than the screen and use heavy duty double stick tape.

Jan 20, 2011 | Philips 60PP9363 60" Rear Projection...

1 Answer

I have an older Pioneer rear projection TV that has never been cleaned, model SD-P50A5-K. Can you give me the basic cleaning instructions and the do nots for this TV.


Unplug the TV for safety - even unplugged, there is enough energy stored in the electronics to be very dangerous.
The bottom speaker grill snaps straight off. There are a row of screws under the screen around the screen bezel that must be removed. The bottom of the screen will become loose and the whole screen assembly slides up, like opening a window (there is a bracket under the bezel at the top of the screen that the bezel slides off of.) My screen took a lot of effort to disengage the top bracket - careful not to break anything!!!

Once the screen is off, put it safely aside. There is a mirror in the back that can be cleaned with a damp cloth (not dripping wet!). Remove a little dust at a time and keep washing the cloth out between cleanings. Be very gentle. If you push on the mirror it could break If its never been cleaned there is sure to be a lot of crud.

Below the mirror are three colored lenses. CAREFULLY use a clean lightly damp cloth to wipe each one. Don't mess with any of the adjustment screws and levers on the lenses.

Before putting the screen back on the TV, carefully clean it with a damp cloth too. Slide the screen back over the top bracket, put the screws back in, and pop the speaker grill back on.

Its a good idea to readjust you convergence too.

When I cleaned my set, I was amazed at how bright and sharp the picture was!


Be Careful!

Jan 07, 2011 | Pioneer SD-P50A5-K 50" Rear Projection...

1 Answer

Also how do you reset the set after you install a bulb


If you really want to clean the lens then take the screws out from around the frame. The screens comes forward and the lens would be sitting in the middle. be extremely careful not to scratch the lens at the same time clean the back mirror and the inner screen. thats it.

Now, I hope that works for you because when a JVC HD-ILA starts blotching is because there is build up inside the lens and there is no way to clean that. to get rid of this problem is to replace the light engine which is super expensive.

Good luck. you can either follow-up here or email us @ support@cats-inc.us

Apr 27, 2010 | JVC HD-56FN97 56" Television

1 Answer

NEED TO REMOVE INNER SCREEN.


take the lower panel speaker covers off first, then tanke the 4 screws out below the screen, then take the bottom skeleton cover off around the speakers then you can take the 4 screws out of the bottom of the screen then the whole screen slides up with 4 tabs in all 4 corners becarefull not to pull out the plastic holders will break you need to make sure to slide it upwardes then you have full access to the inside to clean. hope this works for you

Dec 29, 2009 | Toshiba TZ50V51 50" Rear Projection...

1 Answer

I have a Mitsubishi WS-65413 65 in. Rear Projection TV. This has been a great TV with no problems as of yet. My concearn is its getting up there in age and I wanted to purchas a new lamp for the tv. I just...


WS-65413 is a Mitsubishi set first made in 2003. It uses three picture tubes and no lamp or bulb.

About the only problem these sets ever have in them is failure in the convergence circuit--it happens with age.

If the picture looks good about the only service they ever need is to have the lens on the three tubes cleaned about once a year--if the lens are dusty the picture will be somewhat darker and dull---gradual change--It also has a large mirror that depending on if you are in a dusty environment can be cleaned as well.

Usually the mirror because of the way it is mounted does not need cleaning. Two ways to do this:
If you just want to clean the lens turn the set off--UNPLUG IT and remove the back cover--you will see the three large black lens units---clean them with a lens cloth or a paper towel with glass cleaner sprayed on it.

The other way is tricky as you have to remove the entire front screen assembly--most of the time you have to remove the speaker grills, and inspection plate and unplug the front keyboard---four or five screws along the bottom of the screen unit secure it and with them out you lift the entire unit up(good idea to have 2 people do this and not flex it--you can dislodge the screens from the frame if you are not careful) and out.

What I usually do is remove the back cover and stick my head in and look at the mirror from the inside of the set--if it looks clean without grime or dust--let it be and just clean the lens.

If you want to improve the sets picture after you put everything back--go into the customer menu and select convergence--there will be instructions on screen telling you what to do--select advanced convergence and with the device or input button go to a unused video input----look at the grid of lines--if red or blue are off a little you can adjust with the Mitsubishi remote--the better the convergence is adjusted the better the set will look.

Usually if not any circuit problem---cleaning the lens, mirror, and adjusting the convergence is all that needs to be done.

If this information has helped you rate this solution as I do this here for free.

SD TECH

Dec 08, 2009 | Mitsubishi WS-65413 65" Rear Projection...

2 Answers

My panasonic big screen screen has shadows and fuzzy picture


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Dec 31, 2008 | Panasonic PT-47WX53 47" Rear Projection...

4 Answers

INNER SCREEN NEEDS CLEANING


Here is a picture that shows you how to remove the front screen to get access to the mirror as well.
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Aug 15, 2008 | Toshiba 51H84 51" Rear Projection...

2 Answers

HITACHI ultrascan hd tv....


toni, you`ll need a tv tech for this problem, spark gaps need to be cleaned, crt sockets need to be cleaned and crt pins on all 3 crt`s need to be sanded, this is a common issue with this model set, good luck, BMW Rider

Dec 17, 2007 | Hitachi 53UDX10B 53" Rear Projection...

2 Answers

Focos is bad


Not good for a non qualified service personnel!
WARNING! focus is close to the HIGH VOLTAGE!
Consider this.... if your TV is more than 5 years old, it maybe the crt is gone?
Those TV has self focus... nothing to adjust what so ever?
Try cleaning the inner lens... might help?

Nov 22, 2007 | Sony KP-53XBR45 53" Rear Projection...

2 Answers

Please Help with color & screen Cleaning


You are going to have to adjust the three screens in the front of the set behind the speaker cover. You will need to adjust the Red, Green, and the Blue all to look like a B & W picture so turn down the color or put in a B & W movie from a DVD or VCR. Then adjust each screen till you get the best blend and a good grey scale. Grey scale is the best B & W you can get on the TV set. The screen has two surfaces on it. The outside part goes up and down and is called the lenticular screen, and the inside part has round circular pattern too it and is called the freznel lens. The circular screen and the outside screen can be cleaned with a car polish cloth called a Shammey. Use deluted windex and only wipe the rag in the direction of the screen, eather up or down or circular. Good Luck

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