Polycom VS4000 manual On the Diagnostics Call, Admin Settings Video/Cameras, TV Monitors screen

Chapter 7 - Diagnostics and General Troubleshooting

Symptom	System	Cause	Solution
The picture freezes	All	Too many network line	Try the call again.
frequently during a		transmission errors, or too
call.		much traffic on the network.
		You can check the error count
		on the Diagnostics > Call
		Statistics screen to verify this.
		Network interface cable or	Replace the cable or cables.
		cables may be bad.
Picture is slow or	All	Only one 64 Kbps channel is	Check the ISDN number of the far site.
jerky.		connecting in your call.	Ask the far site to call your site.
		Video from the far site	A background with less motion
		includes a large amount of	provides a better, smoother video
		motion.	picture.
When using two	All	Only one monitor is enabled.	Enable the system for two monitors on
monitors, the same			the Admin Settings > Video/Cameras
picture is seen on the			> TV Monitors screen.
first and second
		The second monitor is	Connect Monitor 2 to the Monitor 2
monitor.
		connected to the VCR video	connection on the rear panel of the
		output	system.
	VS4000	The monitors are connected to	Connect Monitor 2 to the Monitor 2
		the same output. The monitor	connection on the rear panel of the
		has a composite as well as an	system.
		S-Video output.
Edges of picture are	All	Graphics from the far site are	Use a VGA monitor to display graphics.
cut off when viewing		displayed on an NTSC
graphics		monitor.
		This problem may occur in
		multipoint calls using a
		RADVision MCU.
Blue screen in the	All	No video input.	Check that there is a video source
PIP window.			connected to the selected input.
		The camera selection is	Select the appropriate camera:
		incorrect.	Press	Camera, then press the
			number of the camera you wish to use.
			If you are using the older version of the
			remote, press		Near twice, then
			press the number of the camera you
			wish to use.
		The VCR input is selected and	Select a different camera or play a tape
		the VCR is not running. Most	on the VCR.
		VCRs generate a blue screen
		when the tape is not playing.

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