Acer AL1916 AL1916v Service Guide - Page 33

Troubleshooting This chapter provides troubleshooting information for the AL1916: 1. No power No power
Chapter 4 Press power key and look if the picture is normal NG Please reinsert and make sure the AC of 100-240 is normal NG OK Measure U701 PIN2=3.3V, U702 PIN2=3.3V Reinsert or check the power section NG OK X401 oscillate waveforms are normal Measure CN701 PIN5/6=12V? Measure CN701 PIN9/10=5V? NG Check power section OK Replace U701, U702 OK Replace U401 NG Replace X401 32