Question about Mitsubishi WS-55809 55" Rear Projection Television

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Power Failure TV was working fine, it went out momentarily then came back on for about a second more of viewing time, then went OFF. Their was a slight crackle like pop noise prior to the final shut down. I have done the follwing: Checked Fuse, O.K. Uplugged overnight, still the same problem.

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Re: Power Failure

You may want to go to the following link> They have the service manual for your set for 12.99 and they offer free unlimited support when you purchase a manual.They will also email it to you if you return to the site and request them to. Here's the link.

Posted on Jan 25, 2008

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Model WS55819, shut off and won't turn back on. The first few times I tried to turn it on, the indicator light came on and went off after a few seconds. Now there is nothing. I removed the panel from the...

Most common problem in WS-55819 is failure of convergence output chips and blown pico fuses in power supply section.
You need to read out error code in tv, procedure is as follows:
Pressing the front panel "INPUT" and "MENU" buttons at the same time, and holding for 5 seconds,
activates the Error Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem has occurred since the last Initialization.
Note: The front panel buttons must used, NOT those on the Remote Control.
• The number of flashes indicates the value of the MSD (tens digit) of the Error Code.
• The flashing then pauses for approximately 1/2 second.
• The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.
• The Error Code is repeated a total of 5 times.
Example: If the Error Code is "24", the LED will flash two times, pause, and then flash four
Error codes detail:
The Error Code designations indicating a malfunction, or no malfunction, are listed below:
"12" ... indicates no error has occurred.
"21" ... X-Ray Protect circuit.
"22" ... Short Protect circuit.
"23" ... Horizontal Deflection failure.
"24" ... Vertical Deflection failure.
This way you can determine what section got problem in tv and causing problem.
Let me know if you need further info.

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1 Answer

TV turns on then off no picture

this is very common. it is the power supply going bad. it should run at 130 volts dc. but it is now running much lower that this. just enought for the tv to come on. but not enough to power all the circuits right.

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I see someone else has had a similar problem(Jun 15,2010), but no solution posted yet. I have a monster surge protector. It worked the first night that we lost power. I reset it and everything was fine....

Unplug the tv and the cable box about an hour,replug both devices back in.The cable box will reboot itself and upgrade it softwares.The tv should have signal again and work.

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1 Answer

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Most likely a capacitor in the power supply went out. otherwise it may be a bad relay if there happens to be one.
Most reason for a tv not turning on at all is bad power supply

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3 blinks is the error code for the convergence ICs. You need to replace both STK392-110 convergence ICs. You can get replacement ICs at the following link and they provide installation instructions with pictures.

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Power light blinking continuosly

First off check your lamp or replace it. You can never have too many the last minutes of overtime ! Are you kidding Me! If lamp doesn't work, you will need to find qualified servicer. Try craigslist or tv repair in yellowbook

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1 Answer

Went from great picture to black after a couple of flickers. Sound Great.

that would be the flyback could also check in this area

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