Sony HT-ST9, Operating Instructions Manual

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12) Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid injury
from tip-over.
13) Unplug this apparatus during lightning storms or when unused for
long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power-
supply cord or plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been dropped.
The following FCC statement applies only to the version of this model
manufactured for sale in the U.S.A. Other versions may not comply with
FCC technical regulations.
NOTE:
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.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.
Properly shielded and grounded cables and connectors must be used for
connection to host computers and/or peripherals in order to meet FCC
emission limits.
CAUTION
You are cautioned that any changes or modifications not expressly
approved in this manual could void your authority to operate this
equipment.
This equipment must not be co-located or operated in conjunction with
any other antenna or transmitter.
This equipment complies with FCC radiation exposure limits set forth for
an uncontrolled environment and meets the FCC radio frequency (RF)
Exposure Guidelines. This equipment should be installed and operated
keeping the radiator at least 20cm or more away from person’s body
(excluding extremities: hands, wrists, feet and ankles).
Compliance with FCC requirement 15.407(c)
Data transmission is always initiated by software, which is the passed
down through the MAC, through the digital and analog baseband, and
finally to the RF chip. Several special packets are initiated by the MAC.
These are the only ways the digital baseband portion will turn on the RF
transmitter, which it then turns off at the end of the packet. Therefore,
the transmitter will be on only while one of the aforementioned packets
is being transmitted. In other words, this device automatically
discontinue transmission in case of either absence of information to
transmit or operational failure.
Frequency Tolerance: ±20 ppm or less
continued