Sharp R520_CJ16_MM_111009_F4 - Manual (Page 155)

Health and Safety Information 152
Understanding How Your Phone Operates
Your phone is basically a radio transmitter and receiver. When it's
turned on, it receives and transmits radio frequency (RF) signals.
When you use your phone, the system handling your call controls
the power level. This power can range from 0.006 watts to 0.2
watts in digital mode.
Maintaining Your Phone's Peak Performance
For the best care of your phone, only authorized personnel should
service your phone and accessories. Faulty service may void the
warranty.
There are several simple guidelines to operating your phone
properly and maintaining safe, satisfactory service.
• To ensure that the Hearing Aid Compatibility rating for your phone is
maintained, secondary transmitters such as Bluetooth and WLAN
components must be disabled during a call.
• If your phone is equipped with an external antenna, hold the phone
with the antenna raised, fully-extended and over your shoulder.
• Do not hold, bend or twist the phone's antenna, if applicable.
• Do not use the phone if the antenna is damaged.
• If your phone is equipped with an internal antenna, obstructing the
internal antenna could inhibit call performance.
• Speak directly into the phone's receiver.
• Avoid exposing your phone and accessories to rain or liquid spills. If
your phone does get wet, immediately turn the power off and remove
the battery. If it is inoperable, call Customer Care for service.
Availability of Various Features/Ring Tones
Many services and features are network dependent and may
require additional subscription and/or usage charges. Not all
features are available for purchase or use in all areas.
Downloadable Ring Tones may be available at an additional cost.
Other conditions and restrictions may apply. See your service
provider for additional information.
Battery Standby and Talk Time
Standby and talk times will vary depending on phone usage
patterns and conditions. Battery power consumption depends on
factors such as network configuration, signal strength, operating
temperature, features selected, frequency of calls, and voice,
data, and other application usage patterns.
Battery Precautions
• Avoid dropping the cell phone. Dropping it, especially on a hard
surface, can potentially cause damage to the phone and battery. If you
suspect damage to the phone or battery, take it to a service center for
inspection.
• Never use any charger or battery that is damaged in any way.
• Do not modify or remanufacture the battery as this could result in
serious safety hazards.