having trouble with some psu’s in smaller lcds like the nec 1550v still learning the basics can you give me any tips i have 3 units that do not power on but the power led flashes green somewhat rapidly and then a fourth that works fine but i have compared nearly everything save a few components im not sure i can test with my multimeter.
ANSWER
Is the output voltages from the SMPS good an stable? If yes then suspect a bad MAINBOARD. If no then suspect either the inverter board components shorted that pulled down the SMPS or the SMPS itself has problem
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