Yamaha RTX810 Instruction Manual page 158

Communication charges of the USB data communication
terminal is abnormal
E-mail software setting
E-mail software has a function to check incoming e-mail
messages periodically. If this function is enabled, access to
the mail server on the Internet is made at regular intervals,
and you will be charged each time. When you use this
function, carefully consider the e-mail check frequency.
If you do not need such setting, cancel the setting, and check
e-mail manually.
Automatic updating of operating system
If the automatic updating function of the operating system
is enabled, access to the server on the Internet is made at
regular intervals, and you will be charged each time. If
you do not need such setting, change the setting to manual
8
update, and manually update while Internet connection is
established.
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(Continued from the previous page)
If outgoing calls are generated every
time the software is started,
check the environment setting (default setting) of the
software you have installed, and if auto update or other
functions are enabled, change the setting.
Software setting
If the automatic updating function of the software is enabled,
access to the Internet is made every time the software is
started, and you will be charged each time.
If you do not need such setting, cancel the setting.
Windows Media Player operating environment
setting
If you have installed Windows Media Player, Internet
connection is made every time Media Player is opened to
obtain the information in the guide page. Therefore, you
will be charged each time.
If you do not need such setting, cancel the setting according
to the help page.