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Brent FergusonAug 21, 2025
What to do if the external device is connected, but no image appears on the ViewSonic VA2247-mh?
- MMrs. Heather WilliamsAug 22, 2025First, make sure the power is on. Then, adjust brightness and contrast via the OSD Menu. Finally, check the connecting cable and make sure it is properly and securely connected, as loose or broken pins in the cable connector could cause an improper connection. 












