Asus MW221 - Keypad Board Troubleshooting

22" LCD Color Monitor ASUS MW221
38
8.2.3 Keypad Board
OSD is unstable or not working
Is Key Pad Board connecting normally?
Connect Key Pad Board
Is Button Switch normally?
Replace Button Switch
Y
N
N
Is Key Pad Board normally?
Replace Key Pad Board
Y
N
Y
Check Main Board
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