Blackberry RIM 850 Installation & Getting Started Manual page 60

60 Getting to know your handheld — Handheld components
To select a symbol, either scroll to a symbol and click, or press the
associated alphabetic key under the desired symbol. You will return
to your message with the symbol inserted.
LCD screen
The LCD screen is your interface with functions such as composing
and reading messages, setting tasks and appointments, viewing and
editing contact information, customizing device options, and
performing basic mathematical calculations. It is composed of the
Home screen, function screens that are launched from the Home
screen, and menus within each function. Icons are used throughout
for message status, handheld status, and navigational aid.
Backlighting
In low light conditions, you can increase the readability of the LCD
by using the backlighting feature.
Installation and Getting Started Guide
Activate the backlighting by pressing the
three times. It will shut off automatically if you do not
press any keys or use the trackwheel for 10 seconds.
key
ALT