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35 | CHAPTER 5 – TROUBLESHOOTING
Troubleshooting Audio Issues
Complete the following steps to resolve issues with the audio output.
NOTE
Speakers aren’t included with the interactive display. You must add external
speakers for audio output.
To troubleshoot
audio issues
1. Confirm that the audio cable is connected correctly.
2. Confirm that mute isn’t activated.
3. Confirm that the volume isn’t set to its minimum setting.
For additional troubleshooting suggestions, see the NEC MultiSync S521 User’s
Manual (document 145185).
Troubleshooting with the Wireless Remote
Control Sensor LED
Complete the following steps if the power indicator in the wireless remote control
sensor (located in the lower-right corner of your interactive display) doesn’t glow.
To troubleshoot
issues using the LED
1. Confirm that the computer isn’t in power-saving by touching the screen or
touching a connected keyboard or mouse. If this doesn’t resolve the issue,
continue with the following steps.
2. Turn off the interactive display, and then turn off the computer.
3. Disconnect the interactive display’s power cord from the power outlet.
4. Connect the interactive display’s power cord to the power outlet.
5. Turn on the computer, and then turn on the interactive display.
6. If this doesn’t resolve the issue, the LCD monitor’s Power Indicator setting could
be set incorrectly. Open the on-screen menu, using either the control panel or the
wireless remote control, and then select the Multi Display > Power Indicator
sub-menu.
7. Ensure the Power Indicator option is set to ON.