It shut off and began beeping. Unplugged and plugged back in. Still beeping and won't turn back on
These beeps are fault indication (Error Codes). From the number of beeps occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called beeping codes. Make sure about the exact number of beeps. , by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about beeping codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
SOURCE: tv troubleshooting
There is problem in the power Supply section.check the h-out Transistor if Damage then Change for the Same COde #
SOURCE: Panasonic CT36SC13 remote or front power button will not turn off
With the unit unplugged, try pressing all of the front panel switches. These are called "tact" switches and you should feel then engage. If not, than one os defective. As tviceman staed, this will confuse the set a bit and prevent some functions from working. These tact switches are not expensive, but would need to ordered from a generic supplier. The manufacturer is not likely to sell only the switch. The replacement part will be the entire board.
Dan
SOURCE: TV turns off by itself & won't turn back on til unplugged, then plugged back in
panasonic 50" th50 turned off and wiil not turn on again.
SOURCE: Standby light flashes and TV
seems like a power supply problem inside the tv and when the transformer gets warm it is giving you problems you might have to get a tech seviceman to come out and have a look at it as it is not a job you should do yourself when it comes to replacing the power supply hope all goes well
SOURCE: my emerson tv won't turn on
I see so many here with no sound/nopicture issues:
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 to buyand 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.If set is opened at least look for puffed up and bad caps like in thisphoto.
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