Compact CAT5 Audio/Video Receiver
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6. Poor audio quality at the Receiver
Only use powered speakers with the Receiver. It is also good practice to
set the audio level (volume) output of the PC about 1/2 to 2/3 from the
maximum and use the volume knob of the speakers to adjust the volume
to the desired level. A low volume signal output from the PC reduces
the signal-to-noise (S/N) ratio, whereas too high output amplitude can
cause saturation and clipping to occur.
7. Substituting power supplies
The Receiver relies on the AC power adapter that is supplied with it.
The adapter generates a floating 12 v DC power for the unit. If you
intend to use a different external DC power that is referenced to ground,
the Receiver will not function properly.
4.2 Calling Black Box
If you determine that your Receiver is malfunctioning, do not attempt to
repair the unit. Contact Black Box Tech. Support at 724-746-5500.
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;
• The components involved in the problem—that is, what type of
cable, makes and models of computers and monitors, etc.
• The results of any testing you’ve already done.
4.3 Shipping and Packaging
If you need to transport or ship your Receiver:
• Package it carefully. We recommend that you use the original
container.
• Before you ship the unit back to Black Box for repair or return,
contact us to get a Return Authorization (RA) number.
Summary of Contents for AC155A
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