Acer X221 Service Guide - Page 36

CHECKING THE POWER BOARD WHETHER BAD SCAN THE CODE OF S/N AND P/B ON FLOW CARD CHANGE THE LAMP CURRENT OF PANEL CONNECT THE CABLE AND POWER/B BY WHITE GOOEY MARK THE APPOINTED LOCATION BY PEN AS LEFT SHOW PUT THE POWER BOARD TO PRODUCTION LINE CONNECT THE MAIN BOARD AND POWER BOARD PUT 1*PCS SPRING TO THE SINK OF DVI THEN PUT THE M/B & P/B TO THE PCB SHIELDING(NO NEED TO FINISH THIS STEP WHEN NO DVI)