ViewSonic VX2739wm-1 - Page 71

Keypad Board does not work
OSD is unstable or not working
Is Key Pad Board
connecting normally?
Is Button Switch
normally?
Check Main Board
Connect Key Pad Board
Replace Button Switch
Is Key Pad Board
Normally?
Replace Key Pad Board
Y
Y
Y
Y
N
N
N
ViewSonic Corporation
VX2739wm-1
VX2739wm-CN
CONFIDENTIAL – DO NOT COPY
71