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Dynex pdp42 will not power up... i need to unplug from wall let sit for 15 mins and tv will then power on...

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It may have something wrong on power supply, usually you can see the capacitors pop up, if it is, replace it.

Knowledge obtain from: Repair experience on same symptom.

Posted on May 02, 2010

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Posted on Jan 02, 2017

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dont really know,would you be interested in selling it lik that?

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GO TO MENU, THEN SETUP, SCROLL DOWN TO TIMER AND MAKE SURE IT IS ON 0 (ZERO) MIN. SOUNDS LIKE ITS PROGRAMMED TO GO SLEEPAFTER A CERTAIN TIME. THIS TV ALSO CUTS OFF AUTOMATICALLY IN 15 MIN. IF ITS TUNED TO A VACANT CHANNEL( NO PICTURE).

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First things first. We'll start from the beginning. Unplug the AC Adapter from the wall and from the Wii. Let it sit for 15 minutes. Then plug it back in. 9 times out of 10 your power supply needs to be reset. The only way to reset it is to unplug it from the wall and the wii and let it sit for 15 min. Try this first and report back if it worked. Even if you think you have done this already do it again.

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Tv turns off after 15 minutes of use


For bobby11 and luis, it is the power supply. Part Number EAY34797001 in the 42" and EAY34796801 in the 32". This is a known problem, and somebody should start a Class Action against LG over this one. Part is available online and easy to swap out for anyone with the most basic knowledge.

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Mitsubishi WS-65511 Rear Projection Big Box TV resets with a green flashing light every 5 minutes, Then works fine for 5 more minutes (perfect picture). Acts up worse when cold. Warm it up Works hours It's NOT the DM board caps. I've already replaced the DM caps twice. Not the problem. No repairman will look at the set. Too Old. So am I. I could repair it with help. The power supply must have a safety circuit that will shut down & reset if too much draw. I DON'T have a diagram. I'm not sure how to trace it . Which board? If I unplug boards one at a time, Will it damage other boards ? I know it is NOT the 7 DM board caps everyone keeps telling me. I see no burn't parts, No bulging caps. Tapping on components doesn't reset. What kind of component would act up when cold , But not overdraw when warm? This set has the best beautiful picture when it runs. If you can get past the resetting every 5 minutes for the first hour, You can watch it sometimes for 20 hours. I've left it on at night & it is still on the next morning. Change the channel Or raise the volume, And off it goes. Once or 10 times, Keeps resetting. Then on for 4 or more hours, Maybe. I can't afford a new one. It works GREAT ! when it works. I've notice that even when the set is turned off, The green light starts flashing (resetting itself while it's off) , Then stops. Once in a hundred times it will kick off the breaker & you need to push reset with a pin on the front panel next to the green light. It's probably a 10 cent resistor OR a $ 1.00 cap. If I only had someone with more knowledge than me to help. I know how to use a meter & read a schematic. I built a Heathkit 25"TV in the 70's & all my novice ham gear. I'm 64 & not familiar with digital circuits. Can someone help PLEASE ?

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