19" LCD Color MonitorDell 1908FPC479.2 Trouble shooting9.2.1 Main BoardNo powerNo powerPress power key and lookif the picture is normalPlease reinsert and make surethe AC of 100-240 is normalMeasure U602 PIN2=1.8VU601 PIN2=3.3VReinsert or check theAdapter/InvertersectionX301 oscillate waveformsare normalCheck CN601 or replaceU601, U602Replace U401Replace X301OKOKOKNGOKNGNG