NEC 128/384 manual One channel has connected

Chapter 9			VisuaLink 128/384 User Guide
Area	Condition		Check Item and Countermeasures
		[One channel has connected]
		∙	Look at front panel and verify that both B1 and B1-B6 LEDs are lit.
	Picture is slow	∙	Video quality is set to Resolution handling
		∙ Change the video quality to motion handling. This will increase the frame
			rate and allow more of the bandwidth to be dedicated towards the video
			motion
		[One channel has connected]
		∙	Look at front panel and verify that both B1 and B1-B6 LEDs are lit.
	Picture is too Blocky	∙	Video quality is set to Resolution handling
		∙ Change the video quality to motion handling. This will increase the frame
			rate and allow more of the bandwidth to be dedicated towards the video
Video			motion
		[Camera control cable is not connected]
		∙	Verify the camera control cable is connected from the SERIAL output of
	Local camera does not	∙	the VisuaLink to the VISC IN of the camera.
	pan/tilt		Camera is not a suggested manufacture.
		∙	VisuaLink is able to control two types of cameras the VCC1 and EVI-
			D30.
		[Camera control cable is not connected]
		∙	Verify the camera control cable is connected from the SERIAL output of
	Far-end camera does not	∙	the VisuaLink to the VISC IN of the camera.
	pan/tilt		Camera is not a suggested manufacture.
		∙	VisuaLink is able to control two types of cameras the VCC1 and EVI-
			D30.
	Audio can not be heard	∙ Check the audio cable and volume setting.
		∙ Speaker is to far away from the microphone?
	Transmitting audio is very	∙	Is the microphone cable connected?
	low at remote end	∙	Increase the microphone gain setting.
		∙	Increase the volume setting at the remote end.
		[Volume setting is set to low]
	Audio from the remote end	∙ Using the remote controller increase the volume by selecting the volume
			up button
Audio	is low	∙
			The microphone gain level at the remote end is to low
		∙	Increase the gain level for the microphone in the Audio setting section
	Have increased the	[Check the Monitor volume knob]
	volume and microphone	∙	The monitor volume should be about half way.
	gain but the audio is still
	low
	I hear an Echo	[Check the microphone to speaker distance]
		∙	The microphone should be at least 6 feet (2 meters) away from the
		speaker.
		Note: Echo is always caused by the Far-end.

Page 9-2 NDA-24230 Issue 2.0