Acer V193, manufactured in March 2009, model no. ET.CV3RE.A08
The screen would flash its power LED once and then give up any signs of life until the power cord is pulled and re-inserted.
The 1000µF/10V capacitor C820 had failed. It was replaced by a used Chemi-Con KZG 1500µF/16V. Raising the voltage rating of the capacitor is not necessary, I just used the part I had in stock. All other capacitors measured OK, and were not replaced.