Question about Samsung HC-R4755W 47" HDTV

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Samsung HC-R4755W turns on and off by itself.

After about 5 min. somedays and 4 or 5 hours others the TV will turn itself off and back on constantly. A tech suggested a new power supply. Not sure. Help.

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  • hvacman81 Apr 29, 2009

    my tv turns off about evert 15 minutes and sometimes more. Now there is a reddish pinkish line down the middle and a greenish bluish line. Looks like someone colored on it. It is only 3 years old. Any answers

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  • Master
  • 1,112 Answers

Have Capacitors checked in the power relay circuit, also if you have young children who like to push the buttons on the front of the set make sure none of the buttons are sticking inward or stuck in a pushed in posistion. More then likely it might be caused by a faulty System control board which we call the signal board, or bad connections on the power supply, Have a tech check the connections on the Flyback transformer and the High Voltage Deflection Area on the HV Power supply. I believe you have Cold Solder Joints in the HV Power Supply.

Hope you this helps you..

Posted on Sep 21, 2009

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SD TECH
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There might be three or more reasons for this:
1) The sleep timer may be on causing the TV to turn off after a preset time.
2) If sleep timer is on and no signal from the remote is received for a preset time (Samsung: 15 minutes) the tv will turn itself off.
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soon the picture going to go to black screen, you got somes capacitors bothering, you better to call a tech now that he can see the problem, later will cost you more..good luck ps the picture many times tell to the tech whats going on.

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