Iiyama PLE1702WS Service Manual page 38

17" LCD Color Monitor
8.2.3 Key Board
OSD is unstable or not working
Is Keypad board connecting normally?
Is Button Switch normally?
Is Keypad board normally?
OK
OK
OK
Check main board
NG
NG
NG
38
Iiyama PLE1702WS
Connect Keypad Board
Replace Button Switch
Replace Keypad Board