Acer AL2251W Service Manual
Also see for AL2251W: User guideService guide
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Contents
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Troubleshooting Chapter 4This chapter provides troubleshooting information for the AL2251W:1. No PowerNGOKPress power key and lookif the picture is normalPlease reinsert and make surethe AC of 100-240 is normalMeasure U201 PIN2=2.5VU202 PIN2=3.3VReinsert or check theAdapter/InverterX601 and X401 oscillatewaveforms are normalCheck CN201 or replaceU201, U202Replace X601, X401NGNGNGNGOKOKReplace U601No powerReplace U40133 |
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