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Samsung LN46C750R2FXZA Trouble Turning On, Blinking LED

by amccaffrey47 / July 7, 2012 8:34 AM PDT

My 1.5 year old samsung LN46C750R2FXZA has started having troubles turning on the last few days. The led indicator light above the power button will blink steadily when the tv is turned on and the display will stay off. I checked the capacitors on the power board since many people online have had problems with them but they all appear to be fine.

Sometimes the tv will turn on within a couple seconds (still longer than it used to take) and sometimes it will go around 3-5 minutes without working before I turn it off and back on and then it will usually work within a few seconds.

I had the "inputs board" replaced under warranty a while back and I now think the power board needs to be replaced. Since I am no longer under warranty I have no quarrels with buying and replacing the board myself but I do not want to spend the $150 if I'm not completely sure this is the problem. So any tests I can perform, past experiences or other insight is greatly appreciated.


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All Answers

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Keep in mind
by R. Proffitt Forum moderator / July 7, 2012 10:02 AM PDT

There are no discussions here about TV repair beyond a very few items so all other posts get the arrange for repair replies.

I'd find a TV repair forum like AVSFORUM or others.

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fair enough
by amccaffrey47 / July 7, 2012 10:07 AM PDT
In reply to: Keep in mind

Fair enough, but I'm looking more for help with what the problem might be. I have read some other threads with people having similar problems but the only ideas these threads give are the capacitors. Any other ideas of what this could be? anyone else have this problem and get it fixed?

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That's what I see too.
by R. Proffitt Forum moderator / July 7, 2012 3:36 PM PDT
In reply to: fair enough

No TV tech will diagnosis here. They want to see the set.

That other forum seems to get more folk taking guesses.

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Just had same problem
by Lollyjac / July 9, 2012 8:29 PM PDT

I just had the exact same problem with my UA40D6000SRXXA.

Took it to Samsung and they apparently replaced the motherboard. Forunately still under warranty!

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