Keypad Board; Osd Is Unstable Or Not Working - Dell E178FPC Service Manual

17" LCD Color Monitor Dell E178FPC

9.2.3 Keypad 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
54