Tuvva KSN7812 User manual

TUVVA
KSN7812
In-Dash 7” Monitor Touch Screen
MP3/MP4 Player
AM/FM Radio
With Bluetooth &RDS Receiver
Support MHL&TWO WAY
Owner’s Manual
Take the time to read through this owner’s manual.
Familiarity with installation and operation procedures will help you obtain the best
Performance from your new device.

2
Important Safeguards
zUsing the device at temperature below -10℃may cause the breakage of the device.
BEFORE USING PLEASE HEAT UP THE PASSENGER COMPARTMENT TO THE
RECOMMENDED TEMPERATURE!
zRead carefully through this manual to familiarize you with this high-quality sound system.
zDisconnect the vehicle's negative battery terminal while mounting and connecting the unit.
zWhen replacing the fuse, be sure to use one with an identical amperage rating. Using a fuse
with a higher amperage rating may cause serious damage to the unit.
zMake sure that pins or other foreign objects do not get inside the unit; they may cause
malfunctions, or create safety hazards such as electrical shock or laser beam exposure.
zIf you have parked the car for a long time in hot or cold weather, wait until the temperature in
the car becomes normal before operating the unit.
zDO NOT open covers and do not repair yourself. Consult the dealer or an experienced
technician for help.
zMake sure you disconnect the power supply and aerial if you will not use the system for a long
period or during a thunderstorm.
zMake sure you disconnect the power supply if the system appears to be working incorrectly,
(For example: making unusual sounds, smelling strange, emitting smokes from inside or
liquid having gotten inside it）Have a qualified technician check the system.
zThe unit is designed for negative terminal of the battery, which is connected to the vehicle
metal. Please confirm it before installation.
zDo not allow the speaker wires to be shorted together when the unit is switched on. Otherwise
it may overload or burn out the power amplifier.
zDo not install the detachable panel before connecting the wire.
zDon't remove the detachable panel when encoding.
zDo not touch the LCD screen by hard objects, it may damage or give scratch to the LCD
screen.

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Contents
Important Safeguards...................................................................................................................2
Contents.......................................................................................................................................3
Accessories..................................................................................................................................4
Installation/Un-installation ............................................................................................................5
Wiring Connections......................................................................................................................6
Front Panel ..................................................................................................................................9
Inner Panel...................................................................................................................................9
Remote control........................................................................................................................... 11
Remove Battery .........................................................................................................................12
Main Menu ................................................................................................................................. 12
◆Radio Player.....................................................................................................................13
◆USB/SD/MMC Interface ...................................................................................................13
◆Bluetooth Section .............................................................................................................14
◆AV-IN Mode ......................................................................................................................16
◆Setting Control .................................................................................................................16
Other Functions ......................................................................................................................... 17
MHL CONNECTION GUIDE ......................................................................................................19
Anti-theft System........................................................................................................................20
Troubleshooting guide................................................................................................................20
Specification...............................................................................................................................21

4
Accessories
Package contains the following accessories for installation and operation of the unit.
(1) Washer, Spring
Washer, M5 Nut 1 each
(2) Mounting Strap 1
(3) Bolt 1
(4) Screw 4
(5) Mounting Collar 1
(6) Release Key 2
(7) Screw 1
(8) Rubber Cushion 1
RemoteControl
User Manual RCA Cable (optional) Trim ring
Noted:
Product image may vary from the actual delivery.
Power cable

5
Installation/Un-installation
Note
Before starting installation of the unit, make sure the wiring is connected properly.
Use only the parts provided with the unit to ensure proper installation.
The use of unauthorized parts may cause malfunction.
Install the unit where it does not get in the driver’s way and will not injure the passenger in case
there is a sudden stop, like an emergency stop.
INSTALLATION （Figure 1）
Insert Half Sleeve into dash-board hole and bend mount tabs outwards to fix it
If necessary, place the mount strap at the rear of the unit and fix it with provided washer as
figure 2.
Push the unit into the Half Sleeve until you hear a click sound
Place Trim Ring over the unit and installation is completed as figure 3. (Some vehicle may not
need Trim Ring)
UN-INSTALLATION
Insert the supplied extraction keys into the unit and pull the unit out with keeping the extraction
keys. (as Figure. 4)

6
Wiring Connections
Make sure you have good chassis ground. A good ground connection will eliminate most
electrical noise problems. A good chassis ground requires a tight connection to the vehicle’s
metal chassis. The area around the ground connection should be clean, bare metal without rust,
paint, plastic, dust, or dirt for a good electrical connection.
Caution: Do not interchange the connection of the wiring!!!
For some car models you may need to modify wiring of the supplied power cord. Contact your
authorized car dealer before installing this unit.
Using the ISO Connector
1. If your car is equipped with the ISO connector, then connect the ISO connectors as illustrated.
2. For connections without the ISO connectors, check the wiring in the vehicle carefully before
connecting, incorrect connection may cause serious damage to this unit.
3. Cut the connector; connect the colored leads of the power cord to the car battery as shown in
the color code table below for speaker and power cable connections.

7
NOTE: Never connect cable to the system while it is connected to the battery power. Whenever
the unit is disconnected from the battery, the preset memory will be erased and the unit will go
back to its factory defaults.
Note: To watch video the parking wire should be connected to break signal. 2 cables is
connected to a Hands-Free device (not included).
Parking wire
Note: The parking wire is connected with brake signal; for safety, the programs can be seen on
the monitor after braking the car.
NOTE: Never connect cable to the system while it is connected to the battery power. Whenever
the unit is disconnected from the battery, the preset memory will be erased and the unit will go
back to its factory defaults.
Note: To watch video the parking wire should be connected to break signal. 2 cables is
connected to a Hands-Free device (not included).
Parking wire
Note: The parking wire is connected with brake signal; for safety, the programs can be seen on
the monitor after braking the car.
Connecting the reversing line to taillight on the car
After connecting, when you start up the reverse gear, the unit will receive the picture from car
rear view camera.
Note:
- Only use groundless loudspeakers.
- Use only loudspeakers of minimal 40Watt, using fewer watts may result in damaging your
loudspeakers at higher volumes.
- Use 4~8 Ω(Ohm impedance) loudspeakers only; using higher or lesser impedance may
damage the unit.
- Do not use 3-cable loudspeakers and do not connect the loudspeakers minus to the car
body (GND). The unit is using a BTL circuit and each loudspeaker must be connected with
insulated cables according the diagram.

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- Loudspeaker cables and/or optional external power amplifiers must always be about
30cm away from the antenna and/or antenna extension parts.
Connect the speakers according the following diagram, incorrect connections will damage the
unit or your loudspeakers
Correct connection
Left front - Right front | Left rear - Right rear
Incorrect connections

9
Front Panel
Inner Panel
1. BAND/TILT Button
In Radio mode, press to change radio band in sequence of: FM1 →FM2 →FM3 →AM1 →
AM2.
Press and hold for 2 second to adjust the Monitor tilt angle: TILT ANGLE 1 => TILT ANGLE 2 =>
TILT ANGLE 3 => TILT ANGLE 4.

10
2. MODE Button
Press it to select the mode: Radio, USB (if there is a USB device in the unit), CARD (if there is a
SD/MMC card in the unit), and AV IN.
3. MUTE/ SEL Button
Short press it to MUTE the volume output, press it again to resume volume when the power is
on.
SEL: Long press it to enter SOUND SETTING menu to adjust the sound settings; BASS =>
TREBLE = > BALANCE => FADER. Adjust the level by click touch screen to increase or
decrease.
4. PLAY / PAUSE Button
In USB, SD CARD mode, press it to pause / play. Press it again to resume playback
5. / Accept Button
In RADIO mode, press to skip to the previous preset frequency, press and hold for two seconds
to start manual searching downward.
In USB / SD mode, press button to skip to the previous track. Press button and hold for
two seconds to activate fast reverse (REW) search in a track.
In Bluetooth mode, press to make a call after inputted a phone number or accept an incoming
call.
6. / Reject Button
In Radio mode, press to skip to the next preset frequency, press and hold for two seconds to start
automatic searching upward.
In SD / USB mode, press button to skip to the next track. Press button and hold for two
seconds to activate fast forward (FF) search in a track.
In BLUETOOTH mode, press to reject a coming call or hang up while calling.
7. VOL Knob / POWER Button
VOL Knob: Adjust the volume level by turning the knob clockwise to increase or
counterclockwise to decrease.
POWER: Press it to turn on the unit. Press and hold for 2 seconds to turn the unit off.
(* Press any button on panel to turn on the unit except REL button)
After selecting a track, press it to confirm. When playback, press it to restart from the beginning
of the track.
8. Info Display
Information Display LCD when operation the unit.
9. AV-in Jack
Put the AV plug into the AV-IN jack which was marked on front panel.
10. Release Button
Press to release the front panel. When released, the unit will switch off automatically after sixty
seconds. Detach/Attach the Panel: Press REL button and pull out the left side to detach the
panel. To attach it, insert the left side first and then press the right side until hear a click sound.
11. USB slot
USB slot, for Multimedia playback files only. Insert a USB into this slot and the unit will
automatically start reading and playback the files. * Supported Music File Format: MP3, WMA
Files