Keypad Board - Iiyama PLE385 Service Manual

8.2.3 KEYPAD BOARD

OSD is unstable or not working
Is Key Pad Board connecting normally ?
Y
Is Button Switch normally ?
Y
Is Key Pad board normally ?
Y
Check Main Board
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N
Connect Key Pad Board
N
Replace Button Switch
N
Replace Key Pad Board
PLE385 Iiyama