Thank you for posting your question on Just Answer! I will be happy to help you with this problem. Can you please give us some more information so I can better answer your questions.
-Does the light blink a code? (example 6 blinks pause 6 blinks pause repeat)
-How old is the unit?
Please give me this information and I will be happy to assist you further.
There are a couple of things that could cause this, unfortunately there is no reset for this television other than unplugging it. It will have an internal failure at this point. I will try to explain the possibilities the best I can.
First you could have a failure in the power supply, we have seen some capacitors fail in your model and cause funky problems like this. If this is the case you could be looking at somewhere around $175-$200 to fix the set. IF the power supply had to be replaced you could be looking at $250-300
Next could be the main board, this would not be good news because you could be looking at $300-$400 for the repair (I know this is up there in the price range and most likely getting over the cost of a new set)
Lastly you could have a problem with the panel itself, this would mean a new set for sure because the part cost is more than a new set. The panel in your tv is about $800 just for the part.
Any of these could cause your problem, but it will require troubleshooting to determine the exact cause of your problem. If you have experience, and test equipment and would like to attempt some troubleshooting I will be happy to assist you, however if you do not have equipment or experience then you would need a repairman at this time to get an exact diagnosis. I am sorry that I don't have a quick fix or easy answer for you on this one, it is definitely an internal failure.
If you would like any additional information or have more questions please don't hesitate to ask!
Please never accept an answer until you are 100% satisfied and feel you can leave positive feedback. If I have answered your questions and met your needs then please press the green "accept" button. Otherwise please feel free to ask anything else to get your problem resolved. Positive feedback is always appreciated! Thank you,Tim Nolan
Ok well the first thing you want to do is to inspect all capacitors on the power supply to see if any look bad, if you are unsure what these look like then send me a picture and I will inspect for you.
Let me know.
OK let me know what you find.
if you send it to firstname.lastname@example.org she will forward it to me. We need to check for DC going to the main board.
Do you see those 3 connectors going from the power supply to the main board (green board) They are just rigid metal? What I need is for you to put your black lead on the metal of the back of the panel and your red lead on each pin of those connectors, I need to know what DC you get.
sorry to be late getting back to you on problem. It was late here when got a reply,11:30pm. I do not see on power supply the connectors you are referring. It has 5 connectors on left side and 2 connectors on right. Main ac comes in on right lower corner and above that is connector with white and black wires. Above that connector is ribbon cable that attaches to main board. the connector with white and black is where is got 177 volts DC. Checking across black and red wire is 177 volts, but if i use frame ground and check red wire i get 0 volts.
I do receive a lot of pictures, maybe I am not looking at yours when I give you those instructions...is your name Stanley? If no then I did not get any pictures of your set.
Ok I would like to know what the voltage is on those connectors...
So only one pin has 3.2 all others are 0?
Are you checking them while the light is blinking?
Next we would need to check each one just as you hit the power button to see if they spike.
I thought all pins had 0 but the ones with 3.2 before, what changed?
I got nothing on middle and left connectors. the 3.2 drops to nothing when i press power switch. i didnt check pins with power button before. thats probably where i got crazy readings.
OK I see...we are getting something crazy going on here and I cannot put my finger on it...can you get me an overall view of the tv with the back off?
Ok sounds good, take care of family first and let me know when you have time.
Were you able to get that picture?
Ok disconnect all the wires on the edge of the set and the two ribbon cables at the top, does anything change when you turn the set on?
Did you disconnect all the ones on the side of the set?
Looks like that digital board must be causing your problem. If you go to the link above, they have it for a great price.