Troubleshooting – StarTech.com VS440HDMI User Manual
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Instruction Manual
7
Troubleshooting
If switching input/output with the front panel keys are not responsive.
• Press and hold the key for 2 seconds, then release, instead of just a quick press.
Loss of video output or color, or the unit becomes unusually hot.
• If the signal voltage difference between the video source device(s) and the matrix
switch is too large, hot plugging could easily cause damage to the IC chips. Please
turn off power to the system before plugging or unplugging.
The LCD displays normally and the communication port has a return code but no
image is being output.
• The output/input cable connectors are loose. Simply reconnect the cables.
• The connection cable short-circuited. Simply replace the cable.
• The connection cable is broken. Simply replace the cable.
The front panel keys and communication ports are not responsive.
• Check that the equipment input power is properly connected and the computer
communication ports are working.
• Disconnect all cables and power and let sit for several minutes before attempting to
use again.
• Otherwise, contact technical support for further assistance.