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Samsung LE37C650 randomly shuts down

by wave69 / October 22, 2011 4:34 AM PDT

Hello !
My TV started to randomly turn off and then turn on again... over and over again.
Firmware is up to date.
Any suggestions ?

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All Answers

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I'd remove it from service.
by R. Proffitt Forum moderator / October 22, 2011 5:24 AM PDT

While it's off line, research that model number, bad caps, and how to clean the air vents.

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(NT) you think the heat is the reason ?
by wave69 / October 22, 2011 6:25 AM PDT
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No. But it is something we can remove from the list.
by R. Proffitt Forum moderator / October 22, 2011 6:30 AM PDT

I can't explain why but some folk insist the diagnosis not include possible causes. The heat is a possible cause and can be dealt with in about 10 minutes.

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Air vents are clean
by wave69 / October 22, 2011 4:14 PM PDT

All air vents are clean and there is no dust blocking any airflow.

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by Jes2983 / April 14, 2013 2:21 AM PDT
In reply to: Air vents are clean

I have just the same problem with my LE37C650 .
I updated the software and replaced 5 capacitors on the power supply .
Problem is still there .
Do you have a solution for your LCD TV ?


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Odd to replace the caps in your story.
by R. Proffitt Forum moderator / April 14, 2013 2:27 AM PDT
In reply to: LE37C650

The bad caps issue is not about it shutting down but the start up issue. So odd to hear you replacing caps for a shut down issue. What's happening out there in the world of technicians and engineers? Aren't they asking around the other techs and support?

If the above noted cleaning doesn't help then back to the service manual and follow the flow charts. If you don't have the service manual then my thought is you are not a TV tech and must get an estimate.

Sorry if this upsets anyone but there are no user serviceable parts inside.

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Solution ??
by Jes2983 / April 22, 2013 5:26 AM PDT

Mr Profitt,
do you have any idea what could be the cause of this problem .
Samsung Belgium is asking 180 + 110 = 290 euro to fix this .
I wonder isn't it "better" to buy a new TV ?
On the other hand , if it can be fixed for a fair price ...
Any suggestions ?
I would appriciate any help .


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by R. Proffitt Forum moderator / April 22, 2013 6:46 AM PDT
In reply to: Solution ??

I did offer ideas above and the replies were pretty odd. The indication was not bad caps yet they were treating for bad caps. This is not a good sign and why I think they need to get back to the flowchart in the service manual.

I've had very good luck with cleaning and replacement of heat sink compound but it's not fun as folk want assurance that 2 bucks of heat sink compound will fix it. I know to try it because it's brought back a few too many sets from the edge but how to handle folk that want an ironclad fix? My thought is they will have to have the work done.

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