Yamaha Portatone PS-25 - Manual (Page 27)

Attention users in the U.S.A.
PortaSound PS-25 prepared in accordance with
FCC rules.
The PortaTone PS-25 uses frequencies that appear in the
radio frequency range, and if insta ¡fed in the immediate
proximity (with three meters} of some types of audio or
video devices interference may occur.
The PortaTone PS-25 has been type tested and found
to comply with the specifications set for a Class 8
computing 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
PortaTone PS-25 should be suspected of causing
interference with other electronic devices, verification can
be made by turning your PortaTone PS-25 off and on. If the
interference continues when your PortaTone PS-25 is off,
PortaTone PS-25 is not the source of the interference. If
your PortaTone PS-25 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 PortaTone PS-25 or the electronic
device that is being affected by the interference.
Utilize power outlets for the PortaTone PS-25 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
satisfactory results, please contact your Authorized
Yamaha Specialty Products dealer for suggestions andior
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 for any reason you should need additional informa­
tion relating to radio or TV interference, you may find a
booklet prepared by the Federal Communications Com­
mission helpful: “How to Identify and Resolve Radio-TV
Interference Problems". This booklet is available from the
U.S. Government Printing Office, Washington D.C. 20402
— Stock #004-000-345-4.