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Before you start
01
02
Thank you for purchasing this PIONEER
product
To ensure proper use, please read through this
manual before using this product. It is especially
important that you read and observe WARN-
INGs and CAUTIONs in this manual. Please
keep the manual in a safe and accessible place for
future reference.
About this unit
CAUTION
! Do not allow this unit to come into contact
with liquids. Electrical shock could result.
Also, damage to this unit, smoke, and over-
heating could result from contact with
liquids.
! Always keep the volume low enough to hear
outside sounds.
! Avoid exposure to moisture.
! If the battery is disconnected or discharged,
any preset memory will be erased.
Note
Function setting operations are completed even
if the menu is cancelled before the operations
are confirmed.
About this manual
! In the following instructions, USB memories
and USB audio players are collectively re-
ferred to as "USB storage device".
! In this manual, iPod and iPhone will be re-
ferred to as "iPod".
2
En
Demo mode
Important
! Failure to connect the red lead (ACC) of this
unit to a terminal coupled with ignition
switch on/off operations may lead to battery
drain.
! Remember that if the feature demo contin-
ues operating when the car engine is turned
off, it may drain battery power.
The demo starts automatically if you do not oper-
ate this unit within about 30 seconds since the
unit was last operated or if the ignition switch is
set to ACC or ON while the unit is turned off. To
cancel the demo mode, you need to display the
initial settings. Select DEMO (demo display set-
ting) and turn off the demo display. For details,
refer to Initial settings on page 8.
In case of trouble
Should this unit fail to operate properly, please
contact your dealer or nearest authorized
PIONEER Service Station.
Visit our website
Visit us at the following site:
http://pioneer.jp/group/index-e.html
! We offer the latest information about
PIONEER CORPORATION on our website.
Operating this unit
Head unit
DEH-3490UB
12 3 4
5
6
7
8
9
a
b
c de
Part
Part
1
8
h (eject)
(back/display)
2
9
(list)
c/d
MULTI-CONTROL
BAND/
(iPod
3
a
(M.C.)
control)
4
SRC/OFF
b
1 to 6
5
Disc loading slot
c
/DISP OFF
AUX input jack
6
d
USB port
(3.5 mm stereo
jack)
7
e
(color)
Detach button
DEH-2490UB
12 3 4
5
6
7
8
9
a
b
c de
Part
Part
1
8
h (eject)
(back/display)
2
(list)
9
c/d
Part
Part
MULTI-CONTROL
BAND/
(iPod
3
a
(M.C.)
control)
4
b
SRC/OFF
1 to 6
5
c
Disc loading slot
/DISP OFF
AUX input jack
6
d
USB port
(3.5 mm stereo
jack)
7
e
Detach button
CAUTION
! Use an optional Pioneer USB cable (CD-
U50E) to connect the USB audio player/USB
memory as any device connected directly to
the unit will protrude out from the unit and
may be dangerous.
! Do not use unauthorized products.
Remote control
f
9
g
a
h
m
i
l
j
4
k
Part
Operation
Press to increase or decrease
f
VOLUME
volume.
Press to mute. Press again to
g
MUTE
unmute.
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