Is it possible to display the resolution at 800x600 on whole screen with the same image quailty?

To obtain better image quality, please set the resolution at least at 1920x1080.

What to do with black image when playing YouTube videos by Chromium?

Black image means that the specific video format isn't supported by Chromium. You can play such videos by integrated Browser in Embedded Player. 

What kind of OS or devices can be supported by ViewBoard Cast?

ViewBoard Cast supports Microsoft Windows, MacOS, iOS and Android/Chrome based Devices.

How to prevent from annotate on ViewBoard Cast by mobile devices?

You can disable the “Touch and Annotate from Mobile” function in setting.

Can CDE7061T VGA out show the annotation layer to second display?

No, CDE7061T VGA Out only bypass the signal from VGA in 1 and VGA in 2, the annotation won’t be shown on second display.

How to make sound output from external speaker bypass integrated speaker in IFP30/50 series?

Please connect an audio cable from the AUDIO OUT connector on the IFP30/50 to an external amplifier or active speaker with a power adapter.

How can I remotely control IFP to power on and off(standby)?

You can remotely control IFP with RS232 cable or Lan cable by ViewSonic vController.   <Note> To power on via Lan may work by model wise and needs to set IFP standby mode to sleep. Please check specification and UG if it supports.

What is the resolution of IFP7550 OSD menu?

The resolution of IFP7550 OSD menu is 1080P.

How to avoid unauthorized cast-in via Airplay?

To disable Airplay Service in vCast do the following：   Open vCastReceiver on the IFP Select Settings (Gear icon) Select iOS Advance Settings Uncheck Airplay Service   To enable Airplay follow steps 1-3 and check Airplay Service

Can IFP7550 HDMI out show the annotation layer to second display?

Yes, the HDMI out on the IFP7550 will show the annotations on the second display.