Samsung series 5 LCD TV. Model is LA40C530F1R.I switch the tv on i get picture for a few minutes screen goes black & there is only sound.I switch tv off & on again & same result.What is the cause?

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Electro Med Services

Samsung Master 6,694 Answers
Posted on Dec 01, 2016

Electro Med Services

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Joined: Dec 13, 2010

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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Samsung series 5 LCD TV. Model is LA40C530F1R.I switch the tv on i get picture for a few minutes screen goes black & there is only sound.I switch tv off & on again & same result.What is the cause?

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Electro Med Services

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