Nakamichi NA250BTR User manual

Car Audio System Player
NA250BTR
INSTRUCTION MANUAL
CD MP3 WMA USB SD
AUX-IN BT

To prevent a short circuit, never put or leave any metallic objects
(such as coins or metal tools) inside the unit.
Cleaning the unit: Wipe off the dirt on the panel with a dry silicon or
soft cloth. Failure to observe this precaution may result in damage to
the monitor or unit.
Cleaning the connector: Wipe off dirt on the connector of the unit and
faceplate. Use a cotton swab or cloth.
WARNING
How to reset your unit
Important to know...
Maintenance
Caution: Adjust the volume so that you can hear sounds
outside the car. Driving with the volume too high may cause an
accident.
Condensation: When the car is air-conditioned, moisture may
collect on the laser lens. This may cause disc read errors. In this case,
remove the disc and wait for the moisture to evaporate.
The illustrations in this manual are examples used to explain more
clearly how the controls are used. Therefore, what appears on the
illustrations may differ from what appears on the actual
equipment.
If you experience problems during installation, consult your
Nakamichi dealer.
When you purchase external components, check with your
Nakamichi dealer to make sure that they work with your model and
in your area.
Stop the car before operating the unit.
Safety
3
Reset
2
To prevent deterioration, do not touch the terminals of the unit and
faceplate with your fingers.
1
If this unit fails to operate properly, press the reset button.
The unit return to factory setting when the reset button is pressed.
1
2
1
2
Do not expose the faceplate to direct sunlight, excessive heat, or
humidity. Also avoid places with too much dust or the possibility of
water splashing.
What’s in the box
Main unit
(with sleeve)
Carrying case
(for front panel)
Disassembly tool
(2pcs)
Screw x 4pcs
Front panel
Remote
control
User manual
Trim plate
ISO male
connector
2 EN
Check and identify the contents of your package:
Keep the faceplate in its casing while detached.
The faceplate is a precision piece of equipment and can be
damaged by shocks or jolts.
How to attach/detach the faceplate
Preparation
Attach Detach

SRC
AU X IN
MENU
BAND
DB SS
SUB-W
EQ
23 45 61
VRD
XBASS
Highlight Features
EN 3
This unit is equipped with
varable color display/illumination.
This unit is allowed to connect the 5V preout for Rear
and Front RCA Line Out.
SRC
AUX IN
MENU
BAND
DBS S
SUB- W
EQ
23 45 61
VRD
XBASS
This unit is allowed to connect the 5V preout
for Subwoofer.
SRC
AUX IN
MENU
BAND
DBSS
SUB-W
EQ
23 45 61
VRD
XBASS
SR C
AUX IN
MENU
BAND
DBS S
MOSFET 4x50W
SUB -W
EQ
23 45 61
VRD
XBASS
5
Under Disc/USB/SD/iPod/iPhone playback mode,
press buttons first, and then press and
hold buttons within one second, it is
can be access into quick music file access track
or file up/down browse feature.
/
/

Installation / Connection
Basic Procedure
1 Remove the key from the ignition switch, then disconnect
the terminal of the car battery.
2 Make proper input and output wire connections.
3 Install the unit to your car.
4 Reconnect the terminal of the car battery.
5 Reset the unit.
W arning
The unit can only be installed in a car with a 12 V DC power supply, negative
ground.
If you connect the ignition wire (red) and the battery wire (yellow) to the car
chassis (ground), you may cause a short circuit, that in turn may start a fire.
Always connect those wires to the power source running through the fuse box.
Disconnect the battery’s negative terminal and make all electrical
connections before installing the unit.
Insulate unconnected wires with vinyl tape or other similar material. To
prevent a short circuit, do not remove the caps on the ends of the
unconnected wires or the terminals.
Be sure to ground this unit to the car’s chassis again after installation.
If the power is not turned ON, the speaker wire may have a short-circuit or
touched the chassis of the vehicle and the protection function may have
been activated. Therefore, the speaker wire should be checked.
Caution
If your car’s ignition does not have an ACC position, connect the ignition
wires to a power source that can be turned on and off with the ignition key. If
you connect the ignition wire to a power source with a constant voltage
supply, as with battery wires, the battery may die.
Install this unit in the console of your vehicle. Make sure the faceplate will
not hit the lid of the console (if any) when closing and opening.
After the unit is installed, check whether the brake lamps, blinkers, wipers,
etc. on the car are working properly.
Mount the unit so that the mounting angle is 30° or less.
If the fuse blows, first make sure the wires are not touching to cause a short
circuit, then replace the old fuse with one that has the same rating.
When only two speakers are being connected to the system, connect the
connectors either to both the front output terminals or to both the rear
output terminals (do not mix front and rear).
Mounting and wiring this product requires skills and experience. For
safety’s sake, leave this work to professionals.
If you experience problems during installation, consult your Nakamichi
dealer.
Connect the speaker wires correctly to the terminals to which they
correspond. The unit may be damaged or fail to work if you share
the wires or ground them to any metal part in the car.
4 EN
REAR
L
R
FRONT
Subwoofer
Output RCA to RCA Cable
(not included)
FM/AM Antenna Socket
Antenna Jack n(ot included)
Front RCA Output (Left)
Rear RCA
Output (Left)
Front RCA Output (Right)Rear RCA Output (Right)
ISO Connector
W iring Connection
1
2
3
4
5
6
7
8
4
5 7
8
A
B
ISO Connector Wiring Chart
Pin Color and function Pin Color and function
A5
A4
A8
A7
Yellow
Black
Red
Blue
Connect to system control
of the power AMP or auto antenna
relaycontrol terminal(Max 150MA 12VDC)
terminal
Battery(+)
Ignition(ACC)
Ground
B1/B2
B3/B4
/ Violet/Black
Violet +
/ Grey/Black
Grey +
/ White/Black
/ Green/Black
White
Green
+
+
B5/B6
B7/B8
Right rear speaker
Right front speaker
Left front speaker
Left rear speaker

2
3
4
Control panel
Trim plate
mm
182
53mm
1
3
Trim plate
Sleeve
Control panel
1
2
1
Removing the unit
Bend the appropriate
tabs to hold the sleeve
firmly in place.
2Before attaching, make
sure the direction of the
escutcheon is correct.
(Wider hooks on the
bottom side.)
1 Detach the control panel.
2 Engage the catch pin on the removal tools into the holes on
both sides of the escutcheon, then pull it out.
3 Insert the disassembly tools deeply into the slots on each
side, then follow the arrows instructions as shown on the
right.
Disassembly
Sleeve
Disassembly
Trim plate
Control panel
12
3
Installing the unit
EN 5
Screw
Dashboard
Sleeve
( not included in this packing )