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Power problem my tv will turn on and then after a while shut it's self off sometimes i can get it to turn right back on sometimes i have to unplug it for a day

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Simpson Neal

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You may have a bad solder joint either in the power supply circuit or the horizontal driver circuit. I've found horizontal driver circuits with bad solder joints in a lot of RCA Tv's and also in a lot of other brands. Stargazer

Posted on Aug 16, 2007

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I push power button and my 1080 series 42 in. mitsubishi big screen shuts right back off.

Most of these sets have a self check feature:
UNPLUG TV AND THEN PLUG BACK IN---TURN ON---GREEN POWER LIGHT COMES ON FOR A MOMENT AND GOES OFF.

PRESS AND HOLD “device”(device sometimes is called input) and “menu” buttons on front of tv for at least 5 seconds and then release both together.


Watch for power light to blink in a sequence:

1 blink-then 2 blinks-------no error

2 blink-then 1 blink-------X-ray protection

2 blink-then 2 blink-------SHORT PROTECTION*******

2 blink-then 3 blink---------deflection circuit problem

2 blink-then 4 blink---------vertical circuit problem


******2, then 2 is most common---usually means one of the fuses that protect the Convergence IC or IC’s is blown---set will detect no voltage to convergence IC and shut down.


SET WILL REPEAT BLINK ERROR CODE UP TO 5 TIMES AND THEN TO GET IT TO REPEAT MORE YOU HAVE TO UNPLUG SET AND TRY TO TURN ON AGAIN.


IF IT IS 2 AND THEN 2---USUALLY
CONVERGENCE CIRCUIT PROBLEM

Let me know what you find and I will tell you what it means.
If this information helped you rate this solution as I do this here for free.

SD TECH
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Tv just goes blank shoots off then i have to turn it back o n

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Tv comes on then just shuts off will turn right back on

hello it sound like theres may be a dry joint probably in the power supply you would need a strong light and a magnifying glass and soldering iron and some solder

shaun
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Mits 62525

take the lamp back out and reset the lamp
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Blue screen of death

What you Have Is a Main RCA Failure you Have a Cathode to Grid Short In your Picture Tube,The Tube shorts and Tells the Miainboard to shut Down...Good Luck
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