Before You Start
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 WARNINGs and CAUTIONs in this manual. Please keep the
manual in a safe and accessible place for future reference.
If you want to dispose this product, do not mix it with general household waste. There is a separate
collection system for used electronic products in accordance with legislation that requires proper
treatment, recovery and recycling.
Private households in the member states of the EU, in Switzerland and Norway may return their used
electronic products free of charge to designated collection facilities or to a retailer (if you purchase a
similar new one).
For countries not mentioned above, please contact your local authorities for the correct method of
disposal.
By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery
and recycling and thus prevent potential negative effects on the environment and human health.
WARNING
• Do not attempt to install or service this product by yourself. Installation or servicing of this
product by persons without training and experience in electronic equipment and automotive
accessories may be dangerous and could expose you to the risk of electric shock, injury or other
hazards.
• Do not attempt to operate the unit while driving. Make sure to pull off the road and park your vehicle
in a safe location before attempting to use the controls on the device.
CAUTION
• Do not allow this unit to come into contact with moisture and/or liquids. Electrical shock could result.
Also, damage to this unit, smoke, and overheating could result from contact with liquids.
• Always keep the volume low enough to hear outside sounds.
• The Pioneer CarStereo-Pass is for use only in Germany.
• This product is evaluated in moderate and tropical climate condition under the Audio, video and
similar electronic apparatus - Safety requirements, IEC 60065.
CAUTION
This product is a class 1 laser product classified under the Safety of laser products, IEC 60825-1:2007.
If you experience problems
Should this unit fail to work properly, please contact your dealer or nearest authorized PIONEER Service
Station.
Getting Started
Basic operation
DEH-3900BT
M.C. (multi-control) dial
Disc loading slot
(eject)
SRC (source)/OFF
BAND/
DISP (display)
AUX input jack (3.5 mm stereo jack)
Frequently used operations
Purpose
Turn on the power*
Adjust the volume
Select a source
Change the display information
Return to the previous display/list
Return to the normal display from the menu Press and hold BAND/
Answering/ending a call
USB port
Display window
Detach button
Operation
Press SRC/OFF to turn on the power.
Press and hold SRC/OFF to turn off the
power.
Turn the M.C. dial.
Press SRC/OFF repeatedly.
Press DISP repeatedly.
Press BAND/
.
.
Press
.
3
En