Specifications

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Appendix A: Troubleshooting
Symptom: The resolution is poor.
Cause: The unit’s video settings are not set properly
Solution: To adjust the optimal video strength corresponding to the length or
quality of the DVI cable, press the “FUNC” button combined with other push
buttons.
NOTE: The “FUNC” button is included only on the KV9634A.
Symptom: When switching between computer ports, the DVI monitor displays
“No Signal.”
Cause: Computer has gone into sleep mode or was not booted up while the
console was selected on that specific computer.
Solution: If the DVI video drivers are not installed, or are installed
incorrectly, the computer cannot be brought out of sleep mode by
using the keyboard and mouse. Also, when booting up a computer,
the respective port needs to be selected until the OS has fully booted
up. DVI technology requires knowing exactly what is connected when it
initializes its video signal.
A.2 Contacting Black Box
If you determine that your ServSwitch DT DVI KVM with USB and Audio is
malfunctioning, do not attempt to alter or repair the unit. It contains no
user-serviceable parts. Contact Black Box Technical Support at 724-746-5500
or [e-mail].
Before you do, make a record of the history of the problem. We will be able to
provide more efficient and accurate assistance if you have a complete description,
including:
• the nature and duration of the problem.
• when the problem occurs.
• the components involved in the problem.
• any particular application that, when used, appears to create the problem or
make it worse.