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Samsung LCD TV switch on problem

by slukos / January 1, 2011 6:42 AM PST

My Samsung 40" tv (LA40S81B) is around 2 years plus old and is a made in Malaysia model.
One night the tv switched on by itself in high volume and woke us up, I came and switched it off and went back to bed.
From the next morning, the tv wont switch on ! the red led flashes five times and remain on for 4 seconds and again flashes for five times.
After a few days the tv switched on by itself again and worked for around 30 minutes!
After going through the forums I purchased 1000uf, 16V capacitors online and opened the tv but found al capacitors are good. Any how I changed all the 4 capacitors with 1000uf, 10V rating but the symptoms are same, no change at all. I then tried the EPROM reset found the forums but again no result! assembled tv back and left it switched on, and again a few days later found the tv is on! switched it off with remote and tried switching on again, but again the led just flashes!
Any one can help me please???

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I'm afraid this is no DIY job.
by Kees_B Forum moderator / January 1, 2011 6:44 AM PST

You'll need a qualified tech. Tried 1-800-SAMSUNG (if you're in the USA)?

Kees

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Samsung LCD TV switch on problem
by slukos / January 1, 2011 9:26 AM PST

I live in Canada and tried 1 800 samsung.
They are not able to attend to it as there is no Samsung service centre where I live. the nearest is 500 kms away !!!

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Ouch.
by R. Proffitt Forum moderator / January 2, 2011 12:52 AM PST

Canada is one big place. I lived in Richmond, BC for many fine years.

I hear you but if you are to become a TV repair person you find yourself yearning for the days when you got out your Sam's PhotoFact and scoped out a set. Today you replace boards or CAPS when it's failing the visuals.

As this is DIY, Samsung does not offer a service to DIY repair. You might order parts but no maker I know of offers diagnostics or such.

Sorry but now it's time for board swaps.
Bob

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Samsung LCD TV switch on problem
by slukos / January 3, 2011 12:14 AM PST
In reply to: Ouch.

Thanks
trying to find out where I can get boards for swap !But if I have to buy both the T con and the power supply board, then i will be spending more than the price of a new tv.
Is there a place where I can return the boards if it is not the problem???

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If you've bought parts before.
by R. Proffitt Forum moderator / January 3, 2011 12:19 AM PST

No one I know accepts returns. You can ebay the parts just like all things.

You may want to reconsider a shop repair.
Bob

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Should only need power board
by snafu169 / January 3, 2011 3:01 AM PST

I don't know the exact name, but mine was under warranty and they replaced the power board, just call their service department.

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