Hisense 37K16 LCD TV is turned on, the power supply is red, no image, no sound.
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Check the power board 24V, 12V, 5V all, only STB = 5V.
Then check the power supply PS-ON = 0V. The standby voltage is there, PS-ON is not, it seems that the problem is on the motherboard.
Look at the picture, check the motherboard pin J901's 1 pin does not have PS-ON voltage, the amount of U39's 124 pin is low voltage, Q30's C pole has no voltage, R450 upper end has 5V, the measurement R450 is good, it seems that Q30 has a problem, After changing Q30, everything is normal.