Re: When I push the on button it shuts off imediately.
You may need to replace your Tvs convergence board. Go to www.partstore.com and type in your Tv model #. It is a simple swap procedure with no soldering. It costs about $80 or more. It takes 30 to 45 minutes to replace.
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No there is no reset button . you would unplug the set for 5 min's and this will allow a reset . . with the symptoms you give id say you have a shut down issue . the set has detected a error and is putting it into a shut down sequence to protect it self from major damage .
The recessed reset should when engaged run for about 70 seconds and go off--normal and is the unit inside the set rebooting if power is lost or the button pressed, set should be able to be turned on when it stops blinking.
this said what do you have if you try to turn set on from front after the blinking light stops?
I would start by pressing the reset button on the front of the screen. After you are able to turn the tv on, press menu the 2470 then press enter on the remote to reset the tv. This might fix your problem. If not suspect the E2P, and if that doesn't work your DM is faulty and needs replaced.
Your convergence ICs have failed. Thats what causes the led to blink three times. The PT53WX53 convergence repair kit from www.tvrepairworld.com will usually repair that issue. The kit also contains the CD with detailed repair instructions.
Either bad capacitors -vented - on power supply board or bad E2P eprom board on DM board.Probably the capacitors-4-1000Ufd and 2-3300ufd.You should get expert help from reputable tv shop.Not really do it yourself fix either way.
This behavior could be an indicator of power supply problems or abnormal current drain from elsewhere in the set.
Modern supplies are, by design, able to shut down if voltage or currents aren't within the design limits of the circuits they are servicing.
Without some hands-on it is not possible to isolate the problem unless one of the forums deals with a series fault.
If the set had a reset button, it would be located on the outside of it where the user could reset it.
The reset buttons one finds on some sets is nothing other than a very cheap kind of thermal circuit breaker that trips when current is above its limit.
These are kind of prone to failure themselves.
Can you please supply us with the make and model as well as the blink count of the green light. That count should be indicating the problem circuit. Once that info is posted, we should be able to give you more details and possible solutions.