Question about LG 50PC1DRA 50 in. Plasma Television

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I have a lg plasma,and the problem is it comes on for about 1 second then shuts off. repair shop says its the power supply? what do you think? the led is red when off and turns off white almost very light blue when turns on , the screen lights up and in upper right corner is says component 1 and shuts off right away aprox. 5-10 sec from the time initialy turned on. when turns off makes a pop sound from speakers.

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Your power supply is shorted; remove it from the set and, have a TV shop repair it if you are unable to do the repair yourself.
any good shop can do the repair easily and, much cheaper than the manufacturer you can find the power supply by looking to where the power cord enters a circuitboard that will be the power supply

Posted on May 28, 2009

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Turn cable box and tv off then wait 5-10 hours then tun the cable box on first then the t.v.

Posted on Oct 03, 2015

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Plasma screen does not come on and power supply board is bad


When the Plasma TV is plugged in, there're a fewindications of normal operation. Knowing this will help usunderstand what's going on with the unit when anabnormality occurs.1.There is a click from the relaysRL402andRL403when they are activated.2.The LED in the Optical Jack inside the DT board turns on for approx. 4seconds.3.Immediately after that, one of the Tuner LEDs (Right) turns on(Solid Red)for approximately 20 seconds.4.The LED in the Optical Jack inside the DT board turns on again for approx.1 second and both LEDs (tuner and optical jack) turn off.5.Then you will hear another click from the relaysRL402andRL403indicating that they are no-longer engaged. (Note: At this time the Tunerand the Optical Jack LED turn off.)5

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My Sansui HDPDP4200 42 inch Plasma stopped powering up. When I hit the power button (both on the TV or by the remote) the green light comes on for about 2 seconds then shuts off. I tried to turn it back on...


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My pioneer plasma TV shuts off by it's self only after a few seconds?


From what it sounds like here is your power supply unit may have some issues.

1. Take it to a repair shop if your not good at repairing this.
=======================================
If you are a tech:

1. check relay for clicks
2. check eletrolytic capacitors for buldging or holes.
3. Fets for voltages (req service manual or scematic)
4. Replace power supply.

Thanks I am sorry this was basic information but it was free and I would like if you please leave ratings and feedback on your free answer today/

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

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LG 50PC1DRA POPS AND SHUTS OFF


Your right its a power supply issue and what your hearing is capcitor pop or maybe even a fuse, Well if you know about eletronics sure the new psu is going to be $150 bucks

hope this helps

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

Jul 18, 2009 | LG 50PC1DRA 50 in. Plasma Television

2 Answers

Power shuts off


Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
But, I can't say it's 100% the problem because I can't actually look at the tv over the internet.

If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20. And most cases the new part cost less than $15.

I hope I shed some light on the subject for you.

Jul 07, 2009 | LG 50PC1DRA 50 in. Plasma Television

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