Question about Mitsubishi WS-55907 55" Rear Projection Television

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TV will not turn on.

I have a WS-55907 that will not turn on at all. When I plug it into the wall it sounds like it is getting power. Checked the fuse at the power cord and it is good. Any suggestions?

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  • Brandonfire5 May 27, 2008

    Does anyone have a schematic for the WS-55907?



  • kennethstrze Nov 29, 2008

    WHEN I PRESS THE ON BUTTON,TURNS GREEN. IHEAR A CLICK THEN TV SHUTS OFF. CHECKED THE FUSE BY POWER CORD.

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Same problem and Just had repair man out. Said it was the signal board and that with this model it is a very common problem. Mitsubishi no longer makes the parts to fix it. If you want to scout online for one th product number for a signal board is 930b868003

Posted on Dec 16, 2008

  • Billkneale May 02, 2011

    If it is clicking you need to check the power Circuits both switched and un-switched. If I had to guess you have lost you 24pos or negative voltage. both circuits have a diode and a fuse on the board that need to be checked. If the diode is bad you must replace it the the same Ultra High speed type.

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  • 346 Answers

Check power converter/regulator

Posted on May 27, 2008

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1 Answer

WS-55907


1)Pull chassis or center PC board
2)Replace STK392-570 IC's
3)Locate green soldered-in pico fuses = use ohm meter
to find which ones are open ( bad ) = replace
4)Reassemble, test

Nov 19, 2007 | Mitsubishi WS-55907 55" Rear Projection...

1 Answer

My tv you can hear it but not see the picure what should I do to fix it?


try to adjust the contrast on your remote maybe it was accidentally turn to black or just send your TV to a technical person to prevent further damage.
Hope it helps. Thnaks

Sep 13, 2011 | Mitsubishi WS-55907 55" Rear Projection...

1 Answer

It turns on than of immediately.


maybe theres a shorted parts in the power supply.causing the power not to osolate. you need a costomer support technician to fix your problem.

Jun 27, 2010 | Mitsubishi WS-55907 55" Rear Projection...

1 Answer

Picture warped and distorted on Mitsubishi WS 55907


sounds like a convergence failure. Is it possible to post a picture? If not does the image appear as if its 3D?

Jul 12, 2009 | Mitsubishi WS-55908 55" Rear Projection...

2 Answers

Error code 22 on a Mitsubishi WS-55907 55'' HDTV


your set is the V17 series so a code 22 means short protect. Which means the TV has a short circuit condition and is shutting down to prevent further damage. You can get a manual for the V17 sereis at the following link for 15.99 and they will provide free unlimited support to help you with the diagnosis and locating parts. Your set is coverd in the V17 sereis service manual under the mitsubishi section. Here is the link in case youd like the service manual and free support.
http://servicemanuals.vstore.ca/

Mar 08, 2008 | Mitsubishi WS-55907 55" Rear Projection...

1 Answer

Double vision


convergence fail. try resoldering the 2 convergence ICs in the middle baord located on the large heatsink. this might fix unless the problem has gone it course

Feb 21, 2008 | Mitsubishi WS-55907 55" Rear Projection...

1 Answer

Tv powers on and goes off after about 3 seconds


This set has a problem in the horizontal sweep circuit or in the main power supply. Most likely a failed component, and the set shut down to protect the rest of the circuit. If you know how to read a schematic diagram and how the circuits operate, then you will need a good multimeter and an ESR type capacitor checker to find out the short in this set. Sometimes the CRTs(Picture Tubes) will leak the coolent fluid out and onto the printed circuit boards. Also sometimes the convergence IC's can cause this problem, but if that is the case the small little pico fuses will pop also. If you have had no solid state or printed circuit repair experience, play it safe and call in a trained tech. Good Luck

Mar 17, 2007 | Mitsubishi WS-55907 55" Rear Projection...

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