crwdns2934241:0crwdne2934241:0 Keyser

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My backlight is not working

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I have troubleshot the power supply and appear to be getting 30VDC to the LEDs.  However, I haven't been able to find out if this is within an expected amount of voltage before I replace the power supply board.  The power supply board is an ER5565S

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RCA LED65G55R120Q

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open