![]() ![]() If this corrects the issue, then you have isolated the problem to the camera cable. NOTE: If using a source device (such as a cable set-top box, satellite receiver or DVR) to get the signal to the TV, you may also be able to connect this device to the audio receiver using an optical connection. Check the Camera Cable (Wired BNC DVRs and Wired NVRs) If you are not able to see the camera after connecting it to another channel, try replacing the camera cable with that of a working camera. If the issue is still not resolved, disconnect the optical cable and use an analog connection to output the sound from the TV to the audio system.Make sure the TV has the latest system software update. Select Digital audio out, then set to PCM.NOTE: If Audio output is not shown, skip this step. Select Sound, Display & Sound, or BRAVIA Settings.On the remote control, press the HOME button.If the remote control does not have a Quick Settings button: Make sure the TV and source device are both turned on, then disconnect the HDMI cable from one of the devices and then connect it again.On the remote control, press the ( Quick Settings) button.If the remote control has a Quick Settings button:.This step turns off the internal speakers.įor Android TV™ or Google TV™ models, if the audio system is not compatible with Dolby Digital or DTS, perform the following steps. IMPORTANT: Some TVs require that the internal speakers be turned off before outputting the audio signal to another device. Go into the Sound or Speakers menu of the TV and select External Speakers or Audio System.Try changing the channel on the TV to another digital broadcast.Make sure the optical cable is firmly connected to both the TV and the home theater or stereo system.Make sure the home theater or stereo system is set to the appropriate input and mode for the optical connection.NOTE: Each of these steps represents a possible solution to no sound being heard from a TV when using an optical connection to a home audio system or sound bar. In this case, the optical jack from the source device (Blu-ray Disc Player, DVD player, cable or satellite box) should be connected directly to the home theater or stereo system to get the sound.įollow the steps below to troubleshoot if the optical jack does not appear to be working. ![]() Watch the full video and if there is any problem, please contact me. Additionally, sound sent to the TV through an HDMI connection or other input also may not output through the optical jack. This video will tell you about the display Troubleshooting of DVR. A secondary analog connection can be used to pass the audio signal in this situation. If the content does not contain a digital audio signal, then no sound can be heard through this connection.(PCM or Dolby Digital technology) This feature is available on select digital broadcasts and streaming video, and is not supported on standard cable or analog stations. The optical jack is designed to output sound when the content you are watching contains digital audio.The connected third-party sound bar or home theater system may not be compatible with the TV.The TV may require a system software (firmware) update.ĭownloads are posted on your model support page.The optical cable is not securely connected.The TV is not tuned to a digital channel.The connected home theater system, audio receiver or sound bar is not set to properly decode the digital signal.Please reach out to our Customer Experience team for further assistance.įor more great information and helpful guides, visit are some possible causes for this issue: Connect the non-working camera directly to the power adapter. Usually, a no signal message means that there are reception issues, i.e., the television is not receiving reception from the antenna or from the cables.Remove the camera and power adapter from the four-way power splitter.Switch the Yellow BNC connection on the back of the DVR to a known working video channel.Unplug the camera from power and plug it back in.Enabling Covert mode turns off the camera display, but the camera will still record as shown by a red M or R icon on screen. To find the cause of the issue, follow these steps.Ĭonfirm the DVR is not set to Covert mode – this setting can be found in the display section of the Parameter menu. The most common cause of video loss is loose connections or a loss of power. The reasons to reboot your receiver are as follows. The Cable Connection Reset Tool sends a refresh and reboot signal that forces all the TV receivers in the home to restart. Video loss on a surveillance system can manifest as a black screen and may occur after moving components or cables. TV Equipment & DVR TV Channel Lineup On Demand & PPV TV Help & Support Smart Home Back to Products. In this video, we’ll walk you through the process of troubleshooting a blank camera image or loss of video signal on Defender HD.
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