Question

55LM6200 LG smart TV

TV has sound but no picture , has picture for about 30 seconds then goes black but still sound !! Took back off all LEDS work but when they go out after 30 secs an LED on the power supply board starts flashing .

Any ideas

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Comments
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Clarification Request
Are you still under warranty?

If not, you probably already know the best solution.

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55LM6200 LG smart TV

No , out of warranty

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Buy a new one unfortunately

Economically, a new one is cheaper when you factor in the fresh warranty coverage.

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Answer
A set from 2012?

Would not repair. Shop since repair is over half what repair costs here.

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MENU or INFO or Volume. Does anything show on the screen

Ok I get the picture ,no pun intended , time to start pricing !!

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Googled a little more.

Try unplugging the LED strips. It appears this and other models have shorts late in life in the LED strips. Troublesome to replace but some folk will do that work. Figure about 100 in parts or less. This is NOT a firm diagnosis. You must find the service manual or have worked on many sets to test this theory.

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