JVC VN-E4 Troubleshooting, Others, Symptom, Causes and Countermeasures, turned on, be displayed

Others

7. Troubleshooting

Symptom				Causes and Countermeasures
The [STS] lamp does not light	The STS lamp will light up if VN-E4is started up successfully. The light will appear blinking
up but blinks when power is	when troubles occur during startup and the error details will be displayed in CH1-CH4.
turned on.
		CH1	CH2	CH3	CH4	Error Description
		Light	Light	Light	Light	A device with the same IP address as VN-E4is
		OFF	OFF	OFF	ON	detected.
		Light	Light	Light	Light	There is no video signal input to VN-E4.
		OFF	OFF	ON	OFF
IP address of VN-E4is unknown	See A3. IP Address SettingB.
The web page of VN-E4cannot	Refer to ASTART-UP GUIDEB to check the Internet Explorer settings.
be displayed
The built-in viewer cannot be	Refer to ASTART-UP GUIDEB to check the Internet Explorer settings.
installed	Installation of the built-in viewer may fail when an anti-virus software is installed on the PC.
	Install the built-in viewer on a PC that does not have such anti-virus software installed.
An anti-virus software warning	A warning message may appear when an anti-virus software is installed on the PC. To
message appears upon starting	prevent the warning message from appearing, install the built-in viewer on a PC that does
up the built-in viewer	not have such anti-virus software installed.
Authentication by Verisign	Verisign’s electronic signature is stored in the built-in viewer. For PCs that are connected to
appears upon installing the	WEB, the authenticity of the viewer can be verified by Verisign authentication server.
built-in viewer.
TCP image/audio cannot be	Check the total bit rate and number of distributions on the AOperationB page of VN-E4.
played back	Maximum bitrate from VN-E4is 40 Mbps. New requests for distribution will be denied upon
	exceeding 40 Mbps.
	VN-E4allows TCP transmission of up to 10 streams of JPEG or audio data. For example,
	when acquiring 4 JPEG and 1 audio streams via TCP using the built-in viewer, a maximum
	of 2 built-in viewers may be connected to one VN-E4.Make use of multicast for monitoring
	by multiple viewers. VN-E4allows multicast transmission of up to 10 streams.
Multicast image/audio cannot	Start multicast transmission manually from the AStreamingB page of VN-E4.
be played back	In the case of multicast reception at the built-in viewer, check that the multicast address
	and port number of the built-in viewer settings coincide with those on the AStreamingB page
	of VN-E4.
	Make use of a network that supports IGMP for multicast transmission.
The frame rate of JPEG is low	Check the settings on the AEncodingB page of the VN-E4unit. Check the built-in viewer
	settings as well when a built-in viewer is in use.
	Frame rate will be constrained when the network bandwidth is narrow.
	Frame rate will be constrained when there is prolonged network delay or when the data
	volume sent from VN-E4is high. When this occurs, enlarge the window scale of the PC on
	which the viewer is running. The window scale can be altered by changing the Windows
	registry. Refer to Windows manual on procedures to change the Windows registry.
Noise is heard in the audio	Narrow network bandwidth or considerable jitter may cause failure of smooth transmission.
	This can be remedied by reducing the transmission volume. Transmission volume can be
	lowered by reducing the number of channels, frame rate and frame size of JPEG data to
	acquire.
	Audio output from the PC will pass through Windows’ sample rate conversion function. For
	some PCs, sample rate conversion may not be performed properly and interruptions may
	occur in the audio sound. To resolve this problem, perform the following procedures to
	change the Windows settings.
	Go to AControl PanelB - ASounds and Audio DevicesB - AAudioB Tab - AAdvancedB -
	APerformanceB Tab, and change ASample rate conversion qualityB from ABestB to AGoodB.
	For some PCs, sound quality may deteriorate when the Windows OS plays back audio files
	such as beep sounds with ASample rate conversion qualityB set to AGoodB.
	Sound Blaster is recommended for use with this product.
A white zone appears in the	For some PCs, a part of the Internet Explorer graphics may not appear and is left white
built-in viewer.	when the following IE setting is performed.
	ARight-click on DesktopB - APropertiesB - ASettingsB - AAdvancedB - AGeneralB - ADPI settingB,
	and selecting ALarge sizeB or ACustom sizeB
	When this occurs, graphics will be properly restored by selecting ANomal sizeB instead of
	ALarge sizeB and ACustom sizeB.

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