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After-sales service for
Pioneer products
Please contact the dealer or distributor from
where you purchased this unit for after-sales
service (including warranty conditions) or any
other information. In case the necessary infor-
mation is not available, please contact the com-
panies listed below:
Please do not ship your unit to the companies at
the addresses listed below for repair without ad-
vance contact.
U.S.A.
Pioneer Electronics (USA)Inc.
CUSTOMER SUPPORT DIVISION
P.O. Box 1760
Long Beach, CA 90801-1760
800-421-1404
CANADA
Pioneer Electronics of Canada, Inc.
CUSTOMER SATISFACTION DEPARTMENT
340 Ferrier Street
Unit 2
Markham, Ontario L3R 2Z5, Canada
1-877-283-5901
905-479-4411
For warranty information please see the Limited
Warranty sheet included with this unit.
In case of trouble
Should this unit fail to operate properly, please
contact your dealer or nearest authorized
PIONEER Service Station.
Visit our website
http://www.pioneerelectronics.com
in Canada
http://www.pioneerelectronics.ca
! Learn about product updates (such as firm-
ware updates) for your product.
! Register your product to receive notices
about product updates and to safeguard pur-
chase details in our files in the event of loss
or theft.
! Access owner’s manuals, spare parts infor-
mation, service information, and much
more.
Head unit
DEH-3400UB and DEH-34UB
b c dea87
12 3 4 5 6
9
Part Part
1 h (eject) 8
(back/display)
2
(list) 9 c/d
3
MULTI-CONTROL
(M.C.)
a
BAND/
(iPod
control)
4 SRC/OFF b 1 to 6
5 Disc loadingslot c
(clock)
6 USB port d
AUX inputjack
(3.5mm stereo
jack)
7
(color) e Detach button
DEH-2400UB and DEH-24UB
b c dea87
12 3 4 5 6
9
Part Part
1 h (eject) 8
(back/display)
2
(list) 9 c/d
Part Part
3
MULTI-CONTROL
(M.C.)
a
BAND/
(iPod
control)
4 SRC/OFF b 1 to 6
5 Disc loadingslot c
(clock)
6 USB port d
AUX inputjack
(3.5mm 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
j
i
g
h
k
a
m
l
9
4
Part Operation
f VOLUME
Press toincrease or decrease
volume.
g MUTE
Press tomute. Pressagain to
unmute.
English
Before you start
3
Section
Operating this unit
En
01
02