Question about Mitsubishi WS-55819 55" Rear Projection Television

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I turn the set on but i don't get a picture. I can hear the sound fine but evrything is black. when i hit the menu or input button the words come up in yellow but the screen also looks a dark gray. there is a white look at the bottom of the screen but no picture. Somebody suggested replacing the lamp but i don't see a lamp only three separate lamps. Can U Help? Mitsubishi 55819

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It has no lamp, just the three picture tubes and they are not your problem.

I would suggest you do an inspection looking for any signs of Glycol leaks.

Each of the three tubes has a sealed area with this liquid in it, clear and very toxic.

Pull the front speaker grill off and remove the inspection plate behind it. There are three large circuit boards. Right to left as seen from the front---signal/control board green in color, Middle board tan colored----deflection/power and far left board main power and HV supply.

Leaks may be hard to see, it will not be a lot of liquid and or may appear as discoloration of parts. Leaks if there will be in first 3 inches or so of front of boards.

The green board is the most likely in your case---I will attach a photo of what it looks like and you will see the liquid on the square part on that board. The board has parts soldered to the TOP! and slight amounts may appear as discoloration of solder seen there.

As I said, you must look closely as even a tiny amount can cause real odd problems.

Let me know what you find and I will assist you.

If this helped, rate this solution as very helpful as I do this here for free.

SD TECH



I turn the set on - 6cc118a.jpg

Posted on Oct 01, 2010

Testimonial: "Excellent..This is the type of answer I'm looking for."

  • jacksoncc Oct 08, 2010

    No I don't believe a fluid leak is the problem and I'm reluctant to believe it's the pico fuses and convergence ICs since i don't have the 2-2 trouble code

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