20 Most Recent Panasonic TC L42E50 - 42" VIERA E50 Series LED-backlit L - TC-L42E50 Questions & Answers

My panasonic 42 inch does this if the power goes out or tv is unplugged prior to powering the tv off first. I unplug the power from the wall wait 2-4 days max then when I plug it back in the tv comes right back on with no problems. Don't know why I have to wait so long to plug it back in

There is some shorted component/s at its main power regulator board. That is why the circuit breaker trips as soon as you switch on the set. If you wish to get more details, surf the following link. There are over two thousand and four hundred posts. All are related to television and other domestic electronic equipment service help. You can get a solution there. Type in the brand name to your device to its search box, can be located at the top right of the display window. It will make search easy. More than Nine Lakh viewers cannot be wrong.http://electronicshelponline.blogspot.com/

the remote uses light to send a signal to the tv. make sure there isn't anything interfering with the light signal. it could be dirty or the receiver could have dirt obstructing the light.

Three blinks of the power LED indicates an over-current or over-voltage condition in one of the DC supplies of the AP board. The AP board is repairable. Therefore the use of an ohmmeter and peak-hold-voltmeter is required to determine the cause of the shutdown. An over-voltage condition is definitely a defect of the AP board. An over-current condition may be due to a short circuit located in the AP board, A board, or the LCD panel.

Could be a bad remote, that button isn't responding

Here's the manual; http://www.manuals365.com/swf/panasonic/tc50pu54_adv.html Hope this helps.

Panasonic Viera TC 42PX24 Operating Instructions Manual https://panasonic.net/cns/prodisplays/download/pdf/instructions/TH-55_49_42AF1U_W_Eng.pdf https://www.manualslib.com/products/Panasonic-Viera-Flat-Screen-Tv-2309480.html

I had the same problem with my Viera. if you disconnect the power and ribbon cable from the YSUS board (check youtube for how), the light led will blink 6 times, indicating the YSUS is bad. Check ebay for TNPA5175 board (about $115-160). The pop is one of the DG402RP chips burnout. These are about $4, but only available from China. If you can wait a month for delivery, you can solder the new one to replace the bad one. You may want to purchase several in case more are bad or it happens again.

That probably won't work. You'll have that problem until you get a new TV.

I would say that's pretty much had it ,if there's smoke coming from the back something has burnt out I would take it to a TV specialist to see if it can be repaired Nick

Need service, your safety shutdown circuit is functioning properly.

well, this tutorial may be helpful, but I am not sure because I do not really know your question. Samsung TV MP4 Solution The Best Way to Samsung TV Won Play MP4 Files

I presume you are unable to activate the on screen menu after the picture goes, if you can then heat for setup or initial set up and factory reset and see if that clears the problem. My guess would be it needs a service engineer to look at it there may be a faulty part which fails shortly after power up. If by Off it is just in standby then try pulling the plug out for an hour to let it cool down then if that works do a factory reset to clear any software problems. Hope this helps.........

Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size. Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.