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Samsung UE40ES5700 or power supply BN4400502A blinking 6x

What mean this 6 times blinking ? 

no picture on Screen;

no sounds;

no backlight;

on powersupply the power for backlight is 250V on 2 blue cables;

5V is (5.2V) on and 13V are only 12.88 V 

what are the Problem ? 

I think  backlight LED are defektive and on powersupply  the 13V are not ok.

Must I change the powersupply ?