7
Problem: Audio is distorted on the audio input from WP-PC or WP-PCAV.
Solution: Reduce the computer volume. It is possible that the audio driver gain is too high for the amplifier.
Problem: Hum is heard on the audio input from WP-PC or WP-PCAV.
Solution: This is possibly ground noise or other interference. Try the following:
• If there are available inputs, try changing to another input on the CM3000.
• If possible, connect all source devices (computers, Blu-ray player) to the same electrical outlet to avoid
using separate circuits.
• Turn off devices that are not in use.
• Check that all connections are secure and in their proper location.
• Move audio lines away from power sources and power cables.
Problem: Ghosting is seen on the video from WP-PC or WP-PCAV
Solution: Try switching to a different resolution or refresh rate in the computer display settings. WP-PC and WP-PCAV
support up to UXGA but some older computers may have poor VGA drivers.
Problem: Video from the HDMI source doesn’t appear on the display.
Solution: Check the following:
• Do both the HDMI receiver and HDMI transmitter show a solid lit LED on the front? A solid LED means that they are
powered and linked. If the LED is blank, then the unit is not being powered. Check all DC and Cat5e connections.
• Check that all HDMI cables are plugged in securely.
• Make sure the projector is switched to HDMI input.
• Plug the video source directly into the projector to ensure it is sending video properly and that the projector
settings are correct.
• Confirm that an image can be seen when plugging directly into the projector or display (bypass the HDMI extender).
The problem may be with the source device or the cable used.
Problem: HDMI stops working from the computer output.
Solution: Some older computers may have problems with reliable HDMI output. This can be improved by ensuring the
following are done:
• Make sure the latest graphics drivers are installed.
• Make sure the latest BIOS image is installed.
• Update to the most recent Windows Operating System and service packs, if possible.
• Update Intel remote management software drivers, if installed.
• Make sure AHCI is enabled in the BIOS.
• For more information try: http://www.intel.com/support/graphics/sb/CS-034397.htm
Problem: No audio is heard from the HDMI source.
Solution: Check the following:
• CM3000 should be on Input 3. Press the HDMI button on the CB2000 or CB6000 control panel (if installed)
to set audio and video to the correct inputs.
• Make sure the latest graphics drivers are installed on the computer.
• Make sure the latest audio drivers are installed.
• If using a Blu-ray or DVD player, try changing the settings to PCM in the player settings.
• Turn up the volume on the iPad or mobile device and ensure mute is not on.
Appendix 1: Troubleshooting
