Black Box ServSwitch Uživatelská příručka stáhnout pdf (Strana 39)

TROUBLESHOOTING & FAQ

6. Troubleshooting & FAQ

6.1 Video

The image is not sharp, or is badly smeared.

Have you adjusted the video equalization? Follow the instructions on page 30.

Check the Interconnect cable between the Remote and Local Units. Is it of the

recommended type (see page 17)? Is it intact along its entire length and securely

connected at both ends? Is it wired correctly?

Ensure that all video connections throughout the system are attached securely.

Are you using an LCD panel? You need to adjust its clock and/or phase.

Colors appear to be separated and there are colored borders on text and icons.

Check that the compensation jumper setting is correct for the length of your

Interconnect cable (see page 19).

Check the Interconnect cable between the Remote and Local Units. Is it of the

recommended type (see page 18)? Is it intact along its entire length and securely

connected at both ends? Is it wired correctly?

See Appendix C: Advanced Cabling Issues (Skew), page 46.

I only need video extension – not keyboard or mouse - but I can’t get a picture

Have you powered the Local Unit? The Local Unit gets its power from the CPU

through the keyboard connection and it will not operate without it. Use an external

5V PSU as described on page 34.

The monitor sometimes goes blank for a second or two.

Check that the interconnect cable is not routed near power lines or other sources of

electrical interference. Use shielded STP/FTP cable instead of UTP cable ensuring

that the shield connection is maintained between the extender units.

Check system grounding. The Remote Unit has an isolated power supply and relies

on obtaining a ground reference through the connected monitor. Some monitors on

the market have an external PSU which itself may be isolated from power ground.

If this is the case, and you are experiencing monitor blanking, you may need to

consider grounding the Remote Unit chassis (to power ground) or replacing the

monitor’s power supply with a non-isolated model.

If this is a persistent problem, contact Technical Support.

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Black Box ServSwitch Uživatelská příručka Strana 39