Boss Audio Systems DB8974B User manual

To ensure safety while driving
and to comply with laws,
drivers should not watch video or
operate the video device while driving.

-1-
Content
Precaution......................................
Safety Information.........................
Disc Note.......................................
Installation ....................................
Electric Connection ......................
Remote Control ............................
Basic Operation ............................
Main Menu Operation......................
Setting animation...........................
Setting disc....................................
Setting radio...................................
Setting bluetooth............................
Setting wallpaper............ ................
Version about..................................
Setting time.......... .........................
Setting audio mode.........................
Setting video mode.........................
Setting OSD language....................
Setting illumination color.................
TFT display calibration. ..................
Rear View Camera ........................
Control Panel ................................
Unit keys ........................................
Radio Operation............................
Listening to the radio ......................
Storing and Listening to a memory
station ........................................
19
20
21
21
22
24
24
24
24
24
25
25
25
25
26
29
30
30
31
32
33
34
35
36
2
3
4
5
9
10
13
13
13
13
14
14
14
14
15
15
15
15
15
15
15
16
16
18
18
18
Automatic Memory Storing &
Program Scanning.......................
Media Operation.............................
Basic Operation ..............................
Selecting Play Mode ........................
On-Screen Display Function .............
Digital Video Special Function........
Multi-Subtitle Language function.......
Multi-audio language Function..........
Multi-angle Function........................
Title menu function ..........................
A-B Repeat function.........................
Program function.............................
Step function..................................
Slow speed function........................
Bluetooth Operation.....................
AUX Operation ...............................
AV Operation..................................
USB Operation ...............................
Card Operation ..............................
SWC Operation..............................
Parental Control...........................
Region Code..................................
Specification .................................
Troubleshooting.............................

-2-
Precaution
THANK YOU FOR PURCHASING PLAYER .
Before operating the unit, read this manual thoroughly and keep it handy
for future reference .
To avoid injury or accident , read the following precautions before
installing and operating the unit .
A BOSS AUDIO MULTIMEDIA
ABOUT THE LIQUID CRYSTAL DISPLAY (LCD) PANEL
Do not press on the LCD panel on the unit as doing so can distort the
picture or cause a malfunction . The picture may become unclear , or the
LCD panel may be damaged .
NOTES ON CLEANING
-Clean the LCD panel with a slightly damp soft cloth.
-Do not use solvents such as benzine, thinner, commercially available
cleaners or antistatic spray .
-Do not use alcohol to clean the screen .
If your car was parked in a cold or hot place, the picture may not be clear .
The monitor is not damaged . The picture will become clear the temper-
ature in your car becomes normal .
DO NOT install any receiver in locations where;
- it may obstruct the steering wheel and gearshift lever operations, as this
may result in a traffic accident.
- it may obstruct the operation of safety devices such as air bags, as this
may result in a fatal accident.
- it may obstruct visibility.
DO NOT operate any receiver while manipulating the steering wheel, as
this may result in a traffic accident.
The driver must not watch the monitor while driving.
IF THE DRIVER watches the monitor while driving, it may lead to
carelessness and cause an accident.
IF YOU NEED to operate the receive while driving, be sure to look ahead
carefully or you may be involved in a traffic accident.
IF THE PARKING BRAKE is not engaged.“ ParkingBrake” flashes on the
monitor, and no playback picture will be shown.
- This warning appears only when the parking brake wire is connected to
the parking brake system built in the car ( refer to the electric connection)
ON INSTALLATION

-3-
Safety Information
CAUTION:
THIS DIGITAL VIDEO PLAYER IS A CLASS I LASER PRODUCT. HOWEVER
THIS DIGITAL VIDEO PLAYER USES A VISIBLE/INVISIBLE LASER BEAM
WHICH COULD CAUSE .
HAZARDOUS RADIATION EXPOSURE IF DIRECTED. BE SURE TO OPERATE
THE DIGITAL VIDEO PLAYER CORRECTLY AS INSTRUCTED.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF
PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.DO NOT OPEN COVERS AND DO NOT
REPAIR YOURSELF. REFER SERVICING TO QUALIFIED PERSONNEL.
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, AND ANNOYING
INTERFERENCE, USE ONLY THE RECOMMENDED ACCESSORIES.
THIS DEVICE IS INTENDED FOR CONTINUOUS OPERATION.
This product incorporates copyright protection technology that is protected
by method claims of certain U.S. Patents and other intellectual property rights
owned by Macrovision Corporation and other rights owners.Use of this
copyright protection technology must be authorized by Macro vision Corporation,
and is intended for home and other limited viewing uses only unless
otherwise authorized by Macrovision Corporation. Reverse engineering or
disassembly is prohibited.
REGION MANAGEMENT INFORMATION:
This Digital Video Player is designed and manufactured to respond to the Region
Management Information that is recorded on a Digital Video disc. If the Region
number described on the Digital Video disc does not correspond to the Region
number of this Digital Video Player, this Digital Video Player cannot play this disc.

-4-
Disc Note
Preparing New Discs with Rough
Spots
A new disc may have rough edges on
its inside and outside edges. If a disc
with rough edges is used, the proper
setting will not be performed and the
player will not play the disc. Therefore,
remove the rough edges in advance
by using a ball point pen or pencil as
shown on the right. To remove the
rough edges, press the side of the pen
or pencil against the inside and outside
edges of the disc.
Rough spots
on
outside edge
Ball point pen
or pencil
Rough spots
on inside
edge
Do not touch
the
underside
of the disc
Do not
bend
Wipe the disc from
center
toward the outside
edge
Label side
up
Disc Cleaning
Use a dry soft cloth to wipe the surface.
If the disc is quite dirty, use a soft cloth
slightly moistured with isopropyl (rubbing)
alcohol. Never use solvents such as
benzine, thinner or conventional record
cleaners as they may mar the surface of
the disc.
Handling and Cleaning
Dirt, dust, scratches and warping disc
will cause misoperation.
Do not place stickers or make
scratches on discs.
Do not warp discs.
A disc should always be kept in its
case when not in use to prevent from
damaging.
Do not place discs in the following
places:
1.Direct sunlight
2.Dirty, dusty and damp areas
3.Near car heaters
4.On the seats or dashboard
Discs which cannot be played
with this player
Digital Video-RAM
CDV
CDG
Note:
A disc may become somewhat scratched
(although not enough to make it
unusable) depending on your handle it
and conditions in the usage environment.
Note these scratches are not an
indication of any problem with the player.
Disc formats supported by this
player
Digital
Video
VCD
CD
MP3
Audio and Video
Disc size 12 cm
Audio and Video
Disc size 12 cm
Audio
Disc size 12 cm
Audio
Disc size 12 cm
Digital
Video
VCD
CD
MP3

Installation
-5-
NOTES:
1. Choose the mounting location where the unit will not interfere with the normal
driving function of the driver.
2. Before finally installing the unit, connect the wiring temporarily and make sure
it is all connected up properly and the unit and the system work properly.
3. Use only the parts included with the unit to ensure proper installation. The use
of unauthorized parts can cause malfunctions.
4. Consult with your nearest dealer if installation requires the drilling of holes or
other modifications of the vehicle.
5. Install the unit where it does not get in the driver s way and cannot injure the
passenger if there is a sudden stop, like an emergency stop.
. Avoid installing the unit where it would be subject to high temperature, such
as from direct sunlight, or from hot air, from the heater, or where it would be
subject to dust, dirt or excessive vibration.
7. If installation angle exceeds 30 from horizontal, the unit might not give its
optimum performance.
'
6
DIN FRONT/REAR-MOUNT
This unit can be properly installed either from "Front"(conventional DIN
Front-mount) or "Rear"(DIN Rear-mount installation, utilizing threaded
screw holes at the sides of the unit chassis). For details, refer to the following
illustrated installation methods.
Removing the unit
1. Press the REL button to release the front panel .
2. Remove the control panel .
30

Installation
-6-
Installation the unit
3. Remove the PLASTIC COVER of the both sides away
4. Insert the two KEY PLAT into the grooves at both sides
of the unit as shown in figure until they click .
PLASTIC COVER
KEY PLATE
5. Pulling the levers makes it possible to remove
the unit from the dashboard .
DASH BOARD
METAL MOUNTING
STRAP
HEX NUT
SPRING WASHER
PLAIN WASHER
TAPPING SCREW
CONSOLE
SLIDE BRACKET
HOUSING
HEX BOLT

-7-
Installation
How To Remove And Install The Front Panel
When detaching or attaching the control panel, be careful not to damage the
connectors on the back of the control panel and on the panel holder.
2). Pull-off the front panel and keep the front panel into the case .
Detaching Control Panel
Before detaching the control panel, be sure to turn off the power.
1). Press the “REL” release button and the left hand side of front panel will release.
Attaching Control Panel
1). First insert the right hand side of the front panel into the hollow of the unit .
(NOTE : the “bulge” point on the panel must be attached into the hollow of the unit .)
2). Gently push the left hand side of the front panel until you feel a “ Click” .
RELEASE BUTTON
PROTECTIVE CASE
Hollow Bulge

Installation
-8-
Caution:
Do not insert your finger behind the control panel.
When you want to change the viewing angle of the operating unit to play,
you can touch the section on touch screen (or press the button
on the front panel) repeatedly to select the desired angle as follows:
ANGLE 1 - ANGLE 2 - ANGLE 3 - ANGLE 4 - ANGLE 1 .
CHANGING THE CONTROL PANEL ANGLE
ANGLE 1 ANGLE 2
ANGLE 3ANGLE 4

Electric Connection
-9-
WIRING CONNECTION
Note:
the ground connection cable (parking brake B-) must be connected in order for
pictures to be played back to the monitor. If the cable has not been correctly
connected, the message “PARKING BRAKE” appears on the monitor.
(B+)12V
REAR CAMERA SWITCH
(B-)PARKING BRAKE
GREY
GREY/BLACK
FRONT
RCH SPK.
VIOLET
VIOLET/BLACK
WHITE
WHITE/BLACK
GREEN
GREEN/BLACK
REAR
LCH SPK.
AUTO ANTENNA BLUE
GROUND(B-)
MEMORY BACK-UP(B+)
IGNITION SWITCH(B+) RED
YELLOW
BLACK
REAR
RCH SPK.
FRONT
LCH SPK.
LIGHT GREEN
FUSE
FUSE
KEY GROUND(BLACK)
KEY 1(BROWN)
KEY 2(WHITE)
VIOLET/WHITE
SUBWOOFER GREY
RCH RED
LCH WHITE
REAR OUTPUT CABLE
FRONT RCA WHITE L
FRONT RCA RED R
VIDEO OUT YELLOW
FRONT RCA OUTPUT
CABLE
REAR CAMERA INPUT YELLOW
RADIO ANTENNA JACK
RCH IN RED
LCH IN WHITE
VIDEO OUT(2) YELLOW
AUX 2 VIDEO IN YELLOW
AUX2

-10-
Remote Control
5
Button
Ref # Function
1
2
OSD In media Playback modes, Press this button to see information
about the media currently in play.
PROG
Pres s it to prog ram media play mode , refer to see PROG op erat ion.
3LOUD Press to switch the LOUDNESS function ON and OFF .
(0~9)
BUTTONS
4Use to input numerical values during programming, with the
GOTObutton, or to directly select a track to play .
MO/ST
(ANGLE)
In Radio mode, press this button to change between Mono and
Stereo reception modes (when a station is weak, sometimes
switching to Mono will improve sound quality). For Digital Video
media which have alternate viewing angles encoded, when you
see the "angle mark" symbol advising you that these angles are
available.
6
CLK Press it briefly to view the clock time , Press again to return to
normal display mode .
7LOC/
SLOW
In Radio mode, press this button to change the radio reception
sensitivity in stations are near or far.
In media mode, press to execute the slow forward function.
8STOP
Press once to pause playback. Press PLAY/PAUSE to resume
playback.
21
23
25
22
19
24
26
27
29
31
33
35
34
32
30
28
20
12
4
3
5
7
9
11
12
14
15
18
17
16
13
6
8
10

Remote Control
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Button
Ref # Function
9&24
10 SEL
/ Press these buttons to skip ahead or back one track.
In media Playback mode, press for fast forward playback.
In media mode, press it to reverse rapidly
11
12
VOL+/-
STEP/
Use these controls to adjust the volume level.
15
16
17
18
BAND
OK
INT
RPT
LANG/
L/R/ST
A-B/
CLEAR
10+
BUTTON
In Radio mode, press this button repeatedly to switch between
the five radio bands: FM1 > FM2 > FM3 > AM1(MW1) > AM2 (MW2).
SRC
13 Press it briefly to select DISC, RADIO , BT, AUX,AV,etc .
MUTE
14 Press this button to turn off the audio. Press again to restore the
sound to its prior volume level.
SKIP
SEARCH
In video mode, press the STEP button consecutively to display
still frame step by step.
Press it to use the BT , refer to see BT operation
This button is used to confirm selection.
Please see INT operation in basic operation part.
Please see RPT operation in basic operation part.
Press it button to change the viewing angle of the operate unit .
19
21
22
20 This button is used with the other number buttons for use with
two-digit number entries.
In Radio mode, press this button to change between Mono and
Stereo reception modes (when a station is weak, sometimes
switching to Mono will improve sound quality). In Digital Video
Playback mode, pressing this button opens the AUDIO setup menu
for making changes to the way the soundtrack is reproduced.
Please see A-B Repeat operation.
PLAY/
PAUSE
ZOOM
23
25
In media Playback mode, press to pause playback. Press again to
start where playback stopped.
Press to increase the picture in size .
EQ
26 Press repeatedly to cycle through the different equalizer curve
presets you may wish to use for enhanced listening.
27 SUBT
REDIAL
Please see subtitle operation.
Press it to use the BT , refer to see BT operation.
28 POWER Press this button to turn the unit ON , press and hold to turn the
unit OFF.
BASS, TRE, BAL, FADE, COLOR, BRIGHT,
CONTR, TINT , BT, LOUD, SWF, EQ, LO/DX(in radio mode),
ST/MO(in radio mode), TIME 24H/12H,SET CLOCK, BEEP,
FRE AREA, ANIMATION.
To switch between
After switching on the desired mode above, rotate VOL knob or
press VOL+/VOL- buttons to set it.

-12-
Remote Control
Using the Remote Control
Face the remote control towards the player front face IR mark (remote control signal
receiver).
Operation angle: About 30 degree in each the direction of the front of the IR mark.
Preparing the Remote Control
1.First push to inside as the direction indicated by the arrow (See )And then
Remove the battery holder as the direction indicated by the arrow (See ).
2.Replace the battery Set a new battery property with (+)side up as illustrated
(See ).
3.Insert the battery holder. Push in the holder to the original position(See ).
1
2
3
4
Inserting the Battery
Note :
The lithium cell in the battery compartment of remote control has been secured for
transport with a plastic . Before initial use please remove this plastic so that the
remote control is ready for operation .
Button
Ref # Function
APS/
MENU
29
30
31
33
34
35
In Radio mode, press and hold this button to start the Auto-Program
mode, during which the tuner will scan for all strong stations and
assign them to the radio preset buttons.
Press it to use the BT , refer to see BT operation
Press this button briefly to display the root level directory of a
Digital Video media.
SETUP
RDM
SETUP
PBC/
TITLE
Press this button to open the SETUP menu.
32 Press to navigate the various menus present in the product.
Press it button to begin playback at a moment in the program you
designate. Use number buttons to enter the data that is needed.
In Digital Video play mode, for TITLE menu ; in VCD play mode,
press this button to create a PBC (Playback Control) menu;
please see the Title Menu function.
Please see RDM operation in basic operation part.
///

Basic Operation
-13-
General setup interface2
GENERAL
WALLPAPER ...
BLUETOOTH ON
ABOUT ...
ADJUSTABLE ITEMS:
ANIMATION
In RADIO mode, you can change the
playing time of animation among of
“OFF, 10S, 30S, 1M,90S, 2M, 3M and 4M ”.
Note:
Please set the playing time of the
animation to “ 10S ” for the first, when
you turn the unit on .
KEY BEEP : ON or OFF.
GENERAL
ANIMATION 2 MINUTE
KEY BEEP ON
DISC ...DISC ...
RADIO ...
General setup interface1
Main Menu Operation
In many modes, touch the icon
or In DVD/VCD mode , touch the
range to enter the main menu,
the message like following as below.
Touch the “ ” section on the
setting menu, touch the “ / ”
ranges to select the adjustment item,
Touch the “ ” icon to return to the
previous playback .
Setup interface 1
Setup interface 2
ILLUMINATION COLOR
1. POWER icon
In any modes, touch the POWER icon
to switch the unit off . The monitor will
draw in automatically .
2. UP/DOWN icon
Touch this icon to adjust the angle of
the monitor upward or downward
until your desired angle .
3. EJECT icon
Touch to allow for inserting or ejecting
disc.
4. When the unit is power on, tap to turn
off the display and the unit still work,
tap anywhere of the display to turn on
the display again.
5. SETUP icon
Touch to enter the SETTING mode,
the message will display as follow :
10:00 AM
10:00 AM
(3)(1) (2) (5)
(4)

-14-
Basic Operation
FORMAT
TV TYPE
This is to select the appropriate TV
aspect (4:3 or 16:9) according to the
connected TV set.
Normal/PS (For 4:3 TV)
Played back in the PAN & SCAN style.
(If connected to wide-screen TV, the
left and right edges are cut off.)
Normal/LB (For 4:3 TV)
Played back in LETTER BOX style.
(If connected to wide-screen TV, black
bands appear at top and bottom of the
screen.)
Wide (For 16:9 TV)
Select when a wide-screen TV set is
connected.
RATING
Select to turn Parental Control on or off.
This player is capable of playing discs
recorded in either PAL or NTSC formats.
Make the selection based on whether
you are connecting the unit to a PAL TV
or an NTSC TV. You can also set the unit
to AUTO (auto select). The disadvantage
to autoselect is that each time you turn
the unit on it checks to see what kind of
monitor is connected, which causes a
small delay and some flickering of the
display image which you may find
unpleasant.
The factory default password is 0000.
(The password must be used to make
16:9 4:3 Letter Box
4:3 Pan Scan
DISC
FORMAT NTSC
TV TYPE 4:3PS
RATING ADULT
Disc setup as follow:
audio setup interface2audio setup interface1
changes to the Parental Control
menu below .)
Key in “0000” and then turn to rating
then you can setting as follow:
KID SAFE -> G -> PG -> PG-13
-> PG R -> R ->NC-17 -> ADULT
RADIO
DUAL: touch to select stereo or mono.
LOCAL: touch to select local or distant.
REGION: touch to select radio frequency
as USA or EUROPE.
BLUETOOTH
Touch to select BT function on or off.
WALLPAPER
Touch to select wallpaper .
ABOUT
Tou ch to show the version information.
CLOCK SETUP
Tou ch the CLOCK to adjust the time and
time format.
clock setup interface
AUDIO SETUP
Touch the audio to turn to audio quality
adjustment.

-15-
Basic Operation
TREBLE: -7 to +7
Adjust treble level .
BASS: -7 to +7
Adjust bass level .
SUBWOOFER: touch to adjust subwoofer
volume and frequency.
EQ: touch to select audio mode as follow:
USER -> JAZZ -> CLASSIC -> POP -> ROCK
LOUDNESS: touch to select loudness
effect as :OFF -> LOW -> MID -> HIGH
FADER/BALANCE:
BALANCE: R 0-10 to L 0-10
Adjust sound balance between left
and right speakers .
FADE: F 0-10 to R 0-10
Adjust sound balance between front
and rear speakers .
VIDEO SETUP
COLOR: 0 to 32
Adjust the color for the picture-lighter
or darker.
BRIGHTNESS: 0 to 32
Adjust if the picture is too bright or
too dark.
CONTRAST: 0 to 32
Adjust the contrast of the bright and
dark portion.
TINT: 0 to 32
Adjust the tint if the human skin color
is unnatural.
-Adjustable when “NTSC “ is selected
for “NTSC/PAL “ .
LANGUAGE
Touch to select OSD language.
ILLUMINATION COLOR
Touch to select the backlight for all
buttons. Tap auto icon the backlight
change automatically.
CALIBRATION
Tou ch the arrow as show to calibration
the display.
Video setup interface
NOTE:
If RESET is selected, all memory data
will deleted, please re-adjust .
Rear View Camera
When connecting the rear view camera
the mirror image of the rear view is auto-
matically displayed on the monitor
when you change the gear to the back
position.
(Note: additional monitor can not display
the image.)
Reset Factory Settings
RESET button is placed on the housing
and must be activated with either a
ballpoint pen or thin metal object.
The RESET button is to be activated for
the following reasons:
A. Initial installation of the unit when
all wiring is completed.
B. All the function buttons do not operate.
C. Error symbol on the display.
RESET

-16-
UNIT KEYS
Control Panel
1
214
13
357689 410
11
12
Control Panel
Sliding Plate diagram after removing Control Panel
1. AUXILIARY INPUT JACK
Insert an external device to this AUX jack in order to have audio output of the
device through the unit.
3&4. VOL+/ VOL- BUTTON
In normal mode, these two buttons are used to increase or decrease the volume.
And also used as an UP/DOWN knob when audio or video settings are being
adjusted when accessed using the SELECT button.
2. IR sensor
MIC

Control Panel
-17-
5. /SRC BUTTON
In power off mode, press it to turn on the unit.
In power on mode, short press it repeatedly to select one mode of the RADIO,
DISC, USB, CARD, BT,AUX and AV; long pto turn off the unit.ress it
6/7. >>| and |<< BUTTONS
In radio mode,
8
For information about connecting a USB device, please see USB operation.
RESET BUTTON
Press this button to return to factory settings.
SD CARD SLOT
long pressing |<< or >>| button can automatically search down
or up for an available station beginning from the current frequency; Briefly
pressing |<< or >>| button can manually search down or up for a your desired
station beginning from the current frequency.
In media mode, pressing |<< or >>| button can play the previous or next track;
continuously and long pressing |<< or >>| button can fast backwards or
forwards at the following multiple of normal speed: x2, x4, x8, x20.
. MUTE BUTTON
Press it button to switch of the loudspeakers for a short period. The word MUTE
flashes in the display. Press it again to cancel the mute function. This function
can also be cancelled by rotating the VOL multifunction button.
9. OPEN BUTTON
To slide the monitor out and stand it up or into the monitor slot, press this button,
10. USB PORT
11. REL BUTTON
Press it to detachable the front panel.
12.
13.
14. MICROPHONE

Touch Screen Operation
-18-
When an FM stereo broadcast
is hard to receive
Press ST/MO button on the remote
control to select the MONO or
STEREO mode . (When Stereo
mode is activated, the ST symbol
will appear . )
Selecting The Frequency Band
Touch the screen of “ BAND ” section
repeatedly to select the band , the
message will show in turn :
FM1 FM2 FM3
AM2(MW2) AM1(MW1)
RADIO OPERATION
Touch the RADIO ICON in home menu
to enter the RADIO mode:
Start Searching For a Station
During Radio mode, briefly touch “ ”
to increase frequency by one step of
channel spacing.
Briefly touch “ ” to decrease frequency
by one step of channel spacing.
Manual Search
Automatic Search
During Radio mode, touch and hold
(for more than 2 seconds ) either “ / ”
ICONS to start search for a radio station
automatically.
Storing and Listening to a
Memory Station
Setting Memory
With this system, a total of 30 stations
can be stored in the memory of six
buttons. Each band stores up to six
preset stations. The stations might be
FM1, FM2, FM3, AM1(MW1), and
AM2(MW2) band.
The operation is as below :
To tune in strong-signal FM
Station only (LO/DX function)
Listening to Radio
In radio mode, LOC
or tap icon
select LOC/DX
Press button on the
remote control to select
mode of Local and
Long-distance traffic news.
10:00 AM
10:00 AM
10:00 AM
10:00 AM
FM1 87.50 MHz 4
87.50 90.10 98.10 107.9 100.8
10:00 AM
10:00 AM
87.50