Dell E2209Wc Service Manual page 50

22" LCD Color Monitor Dell E2209Wc
9.2.3 Key Board
OSD is unstable or not working
N
Is Key Pad Board connecting normally? Connect Key Pad Board
Y
N
Replace Button Switch
Is Button Switch normally?
Y
N
Is Key Pad Board normally?
Replace Key Pad Board
Y
Check Main Board
50