Turns on and off rapidly by itself.
Most likely the power supply capacitors. you can identify them by their bulging tops.
SOURCE: our samsung hd 42 inch plasma tv keeps turning
Replace any swollen capacitors in the power supply.
SOURCE: 46 inch Samsung TV that just clicks but wont turn on
I just fixed this very same problem. It is the capacitors are the problem. However, I think that if you have some minimal skills with soldering, you can fix this yourself. You just need to take out the system board, then the power supply parts are on the top right. The bad capacitor(s) will be bulging at the top and possibly have some brown stuff coming out. The ones that go bad are 1000microfarad, 10V, however you can replace them with higher voltage. I got 35V caps from radio shack for 1.59 each. You just need to solder out the bad ones and then put the new ones in and solder. Remember that the negative end goes on the side with the bold black part of the circle on the system board. Then just cut off the extra ends of the capacitors. If you are capable of doing this yourself, you will spend at most 6 dollars instead of however much a technician costs.
SOURCE: My Samsung FPT5084 50 Inch Plasma TV....keeps
http://www.retrevo.com/support/Samsung-FP-T5084-TVs-manual/id/2839bh444/t/2/
http://www.samsung.com/us/support/detail/supportPrdDetail.do?menu=SP01&prd_ia_cd=02010200&prd_mdl_cd=&prd_mdl_name=FP-T5084
Below is the service manual link from epox.
ftp://ftp.epox.com/downloads/Manual/mu-8KDA3J&+11.pdf
This is usually a switchmode power supply problem, and it's shutting down, for safety reasons, so as to avoid a fire and explosion or both. Realistically you need to get a "Quote" from an authorised service agent, for repair.
SOURCE: MY 32 INCH RCA LCD HDTV KEEPS TURNING ITSELF ON.
Carol
These units bave a bad power supply. To get it fixed is easy.
Take it to a Servicer center where they repair tvs.
Since there are no srevice manuals they will not be able to repair this unit. With the Work Order in hand call 1-877-297-8391 and they will send you a tv.
Ps.. Make sure you get a work order or a copy.
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