User Manual

22
Before Using the Handset
F-03A_E1kou
Part names and functions
<Using Earphone>
Connect an optional external connection jack
compatible earphone.
When using an earphone that is non-compliant to
external connection jack, connect an optional plug
adapter to use it.
<Functions of parts>
a Light sensor
Sense the ambient luminance (automatic
adjustment of the brightness of the display).
* Blocking the light sensor may disable correct adjustment
of the brightness.
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External connection jack
Plug for the terminal
Flat-plug earphone jack
Connecting plug of Flat-plug
Earphone/Microphone with
Switch
Example of connecting Flat-plug Earphone/
Microphone with Switch (optional)
F-03A.book Page 22 Thursday, November 20, 2008 7:57 PM