Question about Mitsubishi WS-55511 55" Rear Projection Television

1 Answer

Volume moves up and down by itself and then stays max volume

I have 2 issues.
First the volume will go from 0 to max a few times then stay max. The volume box stays on the screen all the time.

Second this morning the power button stopped working and the remotes will not shut off the tv. I unplugged the tv now it will not come back on.

I have no idea what parts I would need to order to repair. If it is even worth repairing.

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  • 538 Answers

Sounds like the main system board is kaplooiee..

well..do you like to dig into this sort of thing?..it will take around 400 and 2 to 3 hours..

Posted on Oct 28, 2008

  • A Womans Computer Man
    A Womans Computer Man Oct 28, 2008

    what vintage is that unit, anyway..

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i would suspect your control buttons on your front panel on the set have become shorted. specifically the volume buttom down. This is freezing you control functions. like someone is holding the volume down button all the time. or intermitantly. this cuircit board is on front of the set. I have seen this problem a few times at the shop. The common repair is to replace that button assembly cuircit board. I believe the last time it cost the customer around 85 dollars, but like all things depends on the part and the technician that puts it in.

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The buttons on the front of the set fail, (like mine did) even if they never get used. Probably the 'DOWN Volume' in your case is stuck closed. Try pecking on it first. My remote stopped working but so did the manual buttons too. While poking around on stuff I swished my finger across the buttons and it all started working so I knew I was on to something. I never figured out which one was the culprit as it continued to cause problems and was replaced as a complete unit under warranty.

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It sounds either volume down button is bad that turns volume down on its own or system control chip got defective and decreasing volume level.
Press volume down button on tv front and check is it working properly.
Let me know to find out further info to solve the issue.
Thanks.

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Tim nolan

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Good Day, texxastam;

Do this:

1. UNPLUG TV
2. HOLD IN VOLUME DOWN &INPUT buttons on TV
3. Plug in the TV. (the TV will turn itself on).
4. A blue "K" should now be showing on the TV screen, release the buttons.
5. Press and release the VOLUME DOWN & CHANNEL DOWN buttons simultaneously on the TV. (A blue service menu will appear on the screen).
6. Using the remote, press the DOWN SELECT button once. (The highlighted line should read INDUSTRY INT (+CAUSE) OFF
7. Using the remote, press VOLUME UP once (OFF changes to ON).
8. Press ENTER. After a few seconds the screen turns green and shows - Industry INIT success - at the top of the screen.
9. Unplug the AC cord for 10 seconds then plug back in.

Good Luck, big IRISH.

PS; I did not make this up... it's from SHARP> again good luck...you may have to do this several times....too...get the timming down.

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