Yamaha PC-50 - Manual (Page 23)

Attention users in the U.S.A.
PortaSound PC-50 prepared in accordance with
FCC ruies.
The PortaSound PC-50 uses frequencies that appear In the
radio frequency range, and if installed in the immediate
proximity (within three meters) of some types of audio or
video devices interference may occur.
The PortaSound PC-50 has been type tested and found
to comply with the specifications set for a Class B comput­
ing device in accordance with those specifications listed in
Subpart J of Part 15 of the FCC rules. These rules are
designed to provide a reasonable measure of protection
against such interference. However, this does not guarantee
that interference will not occur. If your PortaSound PC-50
should be suspected of causing interference with other
electronic devices, verification can be made by turning your
PortaSound PC-50 off and on. If the Interference continues
when your PortaSound PC-50 is off, the PortaSound PC-50
is not the source of the interference. If your PortaSound PC-50
does appear to be the source of the Interference, you should
try to correct the situation by using one or more of the
following measures:
Relocate either the PortaSound PC-50 or the electronic
device that is being affected by the interference.
Utilize power outlets for the PortaSound PC-50 and the
device being affected that are on different branch (circuit
breaker or fuse) circuits, or install A/C line filters.
In the case of radio-TV, interference, relocate the
antenna or, if the antenna lead-in is a 300 ohm ribbon lead,
change the lead-in to a co-axial type cable.
If these corrective measures do not produce satis­
factory results, please contact your Authorized Yamaha
Specialty Products dealer for suggestions and/or corrective
measures. If you cannot locate an Authorized Yamaha
Specialty Products dealer in your general area, contact the
Specialty Products Service Center, Yamaha International,
6600 Orangethorpe Ave., Buena Park, CA 90620.
if tor any reason you should need additional information
relating to radio or TV interference, you may find a booklet
prepared by the Federal Communications Commission
helpful: "How to Identify and Resolve Radio-TV Interference
Problems". This booklet is available from the U.S. Govern­
ment Printing Office, Washington D.C. 20402 —Stock
4 004-000-345-4.
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