Question about Pioneer PDP-4270XD 42 in. HD-Ready Plasma Television

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Tv stuck on standby

My tv is stuck on standby. It switched itself off. And now, when the power is supplied, the standby light comes on but the tv will not switch on.

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Power supply probably needs to be replaced if you don't even hear the relay click after the power is switched on.

Posted on Mar 30, 2009

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Tv stuck on standby


The internal power supply may have failed.

Nov 04, 2013 | Televison & Video

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LCD tv switching itself off


ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.4_10_2012_2_12_56_am.jpg
Look for puffed up caps like these in the power supply board.

All this info is just someplace to start and may or may not resolve the problem--it is where to begin.

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1 Answer

No standby light


Depending on the brand and MODEL number here is what I think happened.

All TV sets have a Standby power supply. It runs all the time even if set is off but plugged in.

It supplies among other things the power (usually less then 12 volts DC to run the remote circuitry---It usually is not fuse protected so if a strike hit nearby it may have come in via the power cord.

Trouble is almost certain to be in the standby supply.

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1 Answer

Lg 50pk550 wont turn on


Repair kit Now available on Ebay.. BUY NOW
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200884727409


If you have any one of these LG Models TV below, and all of a sudden, the screen lights for only a few seconds, then goes into standby with a clicking noise. [Stuck in standby] When you try to switch it on, it tries but then just clicks and goes back to standby? In this video, I show you the components that goes bad, and the culprit that causes it all. The power supply board has already been bought from Ebay, but I'm still selling the voltage regulator that is dang near impossible to find on ebay, as well as the REPAIR KIT for this power Supply Board. Board model number EAY60968801. With any one of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Remember, the component, and the repair kit will only repair power supply model (EAY60968801) with the appropriate PCB numbers. You buy at your own risk

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LG 32LH2000 My TV was turned of last night in the usual way, the power turned off on the remote control, then the power supply switched off and the plug removed. This morning I attached the power...


most LG have a "vacation switch" on the bottom right hand side of the set very near that standby light.

it is placed poorly, where you can accidently click when grabbing the TV to move it or swivel it.

it is a toggle switch, a "master power" switch.

you may have bumped it to the off position. flip the switch, your standby light will come back on.

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Unplug,replug the tv an hour later,let the tv reset itself,might work again.

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Goodmans model gtvl32w26hdf. Switched itself off. have changed fuse, with not difference. blue standby light comes on, using remote press standby blue light goes off, screen remains black.


Good Day SIr, sound to me like your switching power supply is not working properly, there is an IC that controls the switching action of your power supply, this MAY be the reason why it stays off. locate the IC at the power supply section, replace it then test. There is also a possibility of open low value resistors near the switching transistor (very hard to locate). hope this helps.

Sep 23, 2009 | Televison & Video

1 Answer

Won't Turn On....Immediately Switches To Standby


Did you get your tv fixed? It may be the Sub power supply unit. If the main supply went out it would not light the display at all. Yes it is time for th repair shop. Good Luck.

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