Verizon Wireless Palm Centro, Руководство пользователя

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pg 59
MORE INF
O
RMATION
Product Handling & Safety: You alone are responsible for how you use your smartphone and any consequences of its use.
You must always switch off your smartphone wherever the use of a phone is prohibited. Use of your smartphone is subject
to safety measures designed to protect users and their environment.
Electrostatic Discharge (ESD)
Electrostatic discharge (ESD) can cause damage to electronic devices if discharged into the device, so you should take steps
to avoid such an occurrence. Do not touch the smartphone’s battery contacts.
Description of ESD : Static electricity is an electrical charge caused by the buildup of excess electrons on the surface of a
material. To most people, static electricity and ESD are nothing more than annoyances. For example, after walking over a
carpet while scuffing your feet, building up electrons on your body, you may get a shock—the discharge event—when you
touch a metal doorknob. This little shock discharges the built-up static electricity.
ESD-susceptible equipment : Even a small amount of ESD can harm circuitry, so when working with electronic devices,
take measures to help protect your electronic devices, including your Palm™ handheld, from ESD harm. While Palm has built
protections against ESD into its products, ESD unfortunately exists and, unless neutralized, could build up to levels that
could harm your equipment. Any electronic device that contains an external entry point for plugging in anything from
cables to docking stations is susceptible to entry of ESD. Devices that you carry with you, such as your smartphone, build up
ESD in a unique way because the static electricity that may have built up on your body is automatically passed to the device.
Then, when the device is connected to another device such as a docking station, a discharge event can occur.
Precautions against ESD : Make sure to discharge any built-up static electricity from yourself and your electronic devices
before touching an electronic device or connecting one device to another. The recommendation from Palm is that you take
this precaution before connecting your handheld to your computer, placing the handheld in a cradle, or connecting it to any
other device. You can do this in many ways, including the following:
• Ground yourself when you’re holding your mobile device by simultaneously touching a metal surface that is at earth
ground.
• For example, if your computer has a metal case and is plugged into a standard three-prong grounded outlet, touching
the case should discharge the ESD on your body.
• Increase the relative humidity of your environment.
• Install ESD-specific prevention items, such as grounding mats.
Conditions that enhance ESD occurrences : Conditions that can contribute to the buildup of static electricity in the
environment include the following:
• Low relative humidity.
• Material type (The type of material gathering the charge. For example, synthetics are more prone to static buildup than
natural fibers like cotton.)