User's Manual

Ambient light sensor ( A LS)
I f y o u have dy namic br ightn e ss se le c t ed a n d ar e ru nn ing on ba tt ery po w e r , th e am bien t
light se nso r mea s ur e s the sur r ounding light a n d adjusts the display brightness and contrast
acc or d ingly . This en sur e s th a t y o u h a v e pr oper se tting s f or all li gh t i ng c o nditio ns . T o enable
dyn a mic brightne ss , see “ A djusting the display brightne ss ” on page 27 .
Motion Da taGuar d
F or J3 400 ta bl ets usin g a ha r d disk driv e ( s pi nn i ng me di a) , th e Da ta G u ar d f e a t ur e i s
included, which det ec t s shocks , ex tr eme vibra ti o n s , an d fall s . I f th ese condit ions ar e
det ec t ed , DataGuar d mo v e s the driv e heads a w a y fr om t h e disk , w h ich can pr event h a r d
driv e failur es and data loss . F or mor e inf o rma t io n, go to C o ntr o l P a n e l and o p en Da t a Gua r d.
USB 2.0 por t s
T w o USB 2.0 ( H igh- spe e d USB) por t s ca n be use d to a tt a ch any USB device such as a mouse ,
dig i tal camer a , print e r , or ex t e rnal st or age device . The USB por t s ar e co mpatible wit h o l de r
USB de vices ( U SB 1 . 1) .
F or mor e inf or m ation, see “Using USB ” on page 26.
Headphones por t
T h e he adpho n es por t is o n t h e le f t e d ge of th e T a ble t PC . I t is marked w ith a sma ll
he adpho n e s symbol an d is designe d as an audio o u tput channe l o n ly . Y o u can attach
he adpho n e s or ex tern al spe a ke rs to th is por t .
F or mor e inf or matio n, see “ C o nn ec t ing he adpho n e s , ex tern al speake rs, or a micr opho ne ”
on page 29 .
M i cr ophone por t
T h e micr opho ne por t is o n the le f t edge of th e T a b l e t PC . I t is marked with a sma ll
micr opho ne sy mbo l a n d is design e d a s an au dio inp u t/lin e in c h a nn e l on l y . Y o u ca n a t ta ch an
ex te r n a l micr opho ne dir ec t ly to th is por t to e nhance y our a udio r e co r din g capabilitie s . T h e
in te rna l mi cr o p ho ne s ar e disa bl ed wh en an e x t e rna l micr opho ne is a t ta ched .
F or mor e inf or matio n, see “ C o nn ec t ing he adpho n e s , ex tern al speake rs, or a micr opho ne ”
on page 29 .
Ch apter 2 Fe a t u r e s 15