Sony SGPT111US/S Important Information Manual page 7

The following FCC statements apply only to the version of this model
manufactured for sale in the USA. Other versions may not comply with
FCC technical regulations, and the FCC statements are not applicable in
Canada, including the Province of QUEBEC.
FCC Information (USA)
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
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Increase the separation between the equipment and receiver.
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Connect the equipment into an outlet on a circuit different from that
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to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
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Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment.
NOTE: The manufacturer is not responsible for any radio or TV
interference caused by unauthorized modifications to this equipment.
Such modifications could void the user's authority to operate the
equipment.
Only peripherals (input/output devices, terminals, printers, etc.) that
comply with FCC Class B limits may be attached to this product.
Operation with noncompliant peripherals is likely to result in interference
to radio and television reception.
All cables used to connect peripherals must be shielded and grounded.
Operation with cables connected to peripherals that are not shielded and
grounded may result in interference to radio and television reception.
FR