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Chapter 4: Troubleshooting
4. Troubleshooting
4.1 Problem-Solving Frequently-Asked Questions (FAQs)
1. What are the cable length limitations?
The splitter can accept up to 16 feet (5 meters) of cable on its input and 32 feet
(10 meters) on its output for a total of 48 feet (15 meters) total. At long distances,
if you start to experience video degradation, you should turn the refresh rate and/
or resolution of the video signal lower.
2. What about HDCP (High-bandwidth Digital Content Protection) in
home entertainment systems?
The Splitter is designed to primarily work with PCs with DVI outputs. If you want
to use it in a home-theater setup with DVI connections, it may or may not work.
The splitters do not provide compatibility with HDCP encoded video sources. For
example, if you have a DVD player with DVI output, depending on the brand, or
the DVD, it could enforce HDCP content protection. If HDCP is not enforced, then
the splitter will function well. However, if HDCP is enforced, then at best the DVD
player will output at 480p mode, and at worst it will not output any video on its
DVI output. Instead, a message will be displayed to use another output.
4.2 Calling Black Box
If you determine that your 2- or 4-Channel DVI Splitter/Extender 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
[email protected].
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.
