Acer X221 Service Manual 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)