Aura AMH-770DSP User manual

Scan the QR code to download the AURA Android App.
AMH-770DSP
Scan the QR code to download the AURA IOS App.
AM/FM Stereo Receiver

2
INSTALLATION
Preparation
The preparation kit is necessary to mount the radio on the dashboard, this kit is
available at electronics stores and car audio specialists, check the installation kit
before using it to make sure it is the right one for your vehicle.
INSTALL THE DEVICE
1. Lift the left or right top corner of the plastic outer trim ring
then pull it out to remove it.
2. Insert the two bracket keys into the left and right side of
the chassis to separate the chassis from the housing.
3. Install the mounting knob on the board. Check the
opening size of the sliding panel to be mounted. If the
measurement is not large enough, carefully cut it until it
slips easily on the opening. Do not force the handle in the
opening so as not to bend it. Locate the series of dubbing
tabs above, below and all sides to be mounted. Completely
insert it to the opening of the board, bend the tabs as
necessary towards outside to ensure it ts the board.
4. Slide the stereo into the opening in the dash, ensuring that
the wires behind are tucked and not pinched.
5. Follow the wiring diagram carefully.
Verify you’ve connected them correctly.
CAUTION! Connect the unit to a 12 Volt power source
with adequate ground.
6. Now that your wires are all completed, attach the front
panel and turn ON the unit (the vehicle must be switched on). If the unit does not
work, check the calibration again until the problem is solved. With the new car
stereo secured into the bracket, all you need to do is plug the wiring harness back
into the stereo and put the assembly back into place.
7. Slide the stereo into the opening in the dash, ensuring that the wires behind are
tucked and not pinched. Sometimes this may take a few times when the vehicle
has a tight dash opening. Tuck the wires back into an opening behind the unit.
8. Install the plastic outer trim ring
9. Snap all the pieces of trim back into place over the stereo. Double check that all
screws and trim pieces are securely in place.Try out the new stereo. Turn the car
power on again and play around with the stereo and its settings to be sure
everything is in working order.

CONTROL PANEL BUTTONS
1. (Power)/Press the SRC(source) button to switch between the button
RADIO, BT(Bluetooth), USB with a USB device inserted, AUX-IN mode(input
assistant)
2. Short press back to the previous conquration point.
3. (tune back, search back, crawl back, fast reverse)
4. (tune forward, search forward, crawl forward, fast forward)
3
HANDS FREE PUSH-TO-TALK
PUSH-TO-TALK
• Allows you to access SIRI or GOOGLE voice via Wireless BT.
• Your phone must support SIRI or GOOGLE voice. Once connected to BT, your phone will ask for
access to your contact list.
• Now you are ready to use PUSH-TO-TALK. Press the PUSH-TO-TALK icon.
You are ready to talk. Call "(CONTACT NAME)" The system will call without
having to use your phone.
WIRING CONNECTIONS
CONTROL PANEL BUTTONS
19
20
21
1 2 10987654 113
1417 16 1518
13
12
WIRING DIAGRAM
PRECAUTION
+12V DC
NEGATIVE
EARTH
AMPLIFIER OUTPUT
SWC
SUBWOOFER(L)
SUBWOOFER(R)

4
CONTROL PANEL BUTTONS
5. In power on mode, press the MUTE button to toggle mute ON or OFF.
6. Folder up, button 1 preset
7. Folder down, button 2 preset
8. (repeat), button 3 preset
9. (random), button 4 preset
10. (pause/start), preset station 5 button
11. INT (intro) , preset button 6 station
12. AUX IN (auxiliary input)
13. USB port
14. LCD screen
15. Short press button display clock in all mode. In USB mode, Short
press to select All info/Elapsed time/File info/Track info/clock operation.
Long Press button for 3 sec(LCD show DISP OFF) turn o illumination
on panel and touch any button to turn on illumination, Long Press
button for 3 sec (LCD show DISP ON) to retrieve illumination.
16. Long press auto search stations. Short press BAND button to change
band.
17. MIC hole (integrated microphone)
18. IR remote control sensor
19. Long Press button to activate SIRI. Short press button to pick
up/cut o phone call.
20. Reset
21. SEL (select/menu) button and VOL (volume) knob
GENERAL OPERATION
Turn Unit ON/OFF
• Press the power /SRC button on the front panel to turn ON the unit, and
press and hold it again to turn OFF the unit.
• Press the power button on the remote control to turn the unit ON or OFF.
Adjust Volume (VOL)
• Rotate the VOL knob on the front panel or press the VOL+ /VOL- button on
the remote control to increase or decrease the volume level.

5
FUNCTION
•Press the Volume knob and Rotate to select Audio/Display/Tuner/Clock/Beep/
Animation/Demo mode function. Press the Volume knob again to Select desire
function mode.
AUDIO MODE
•Press the Volume knob and Rotate to select SW Level/Manual EQ/Q factor/Preset
EQ/Bass boost/Loudness/Subwoofer set/Fader/Balance/X’Over/DTA Setting/Car type.
•Long Pless Volume knob to selet 2 way/3 way X’Over mode.
SW LEVEL
•Press the Volume knob and Rotate to select -13 ~ +13 level.
MANUAL EQ
•Press the Volume knob and Rotate to select 25 band frequencies level.
Q FACTOR
•Press the Volume knob and Rotate to select 1/1.5/2.5/3.5 dierent Q factor value.
PRESET EQ
•Press the Volume knob and Rotate to select user/Natural/Rock/Pop/Easy/Top40/
Jazz/Powerful.
BASS BOOST
•Press the Volume knob and Rotate to select Bass bosst level.
LOUDNESS
•Press the Volume knob and Rotate to select Loudness level.
SUBWOOFER SET
•Press the Volume knob and Rotate to Switch ON/OFF.
FADER
•Press the Volume knob and Rotate to select Fader position.

BALANCE
•Press the Volume knob and Rotate to select Balance position.
X’OVER
•Press the Volume knob and Rotate to select Tweeter/Front HPF/Rear HPF/
Subwoofer LPF.
TWEETER
•Press the Volume knob and Rotate to select Frequency/Gain left/Gain right.
FRONT HPF
•Press the Volume knob and Rotate to select Frequency/Gain.
REAR HPF
•Press the Volume knob and Rotate to select Frequency/Gain.
SUBWOOFER LPF
•Press the Volume knob and Rotate to select Frequency/Gain/Phase.
DTA SETTINT
•Press the Volume knob and Rotate to select Position/Distance/Gain/Data Reset/
Delay Unit.
CAR TYPE
•Press the Volume knob and Rotate to select Small/Medium/Large car type.
DISPLAY
•Press the Volume knob and Rotate to select Color Select/Spectrum/ID3 tag/Version.
COLOR SELECT
•Press the Volume knob and Rotate to select custom R/G/B/Variable Scan/Red/Pink/
Purple/Blue/Cyan/Green/Yellow/Orange.
SPECTRUM
•Press the Volume knob and Rotate to switch ON/OFF.
6

SPECTRUM
•Press the Volume knob and Rotate to switch ON/OFF.
ID3 TAG
•Press the Volume knob and Rotate to switch ON/OFF.
VERSION
•Press the Volume button to check software version.
TUNER
•Press the Volume button to select Local Seek/Mono Set/Regional/RDS Set.
LOCAL SEEK
•Press the Volume button to rotate switch ON/OFF.
MONO SET
•Press the Volume button to rotate switch ON/OFF.
7
REGIONAL
•Press the Volume button to rotate to select country regions.
RDS SET
•Press the Volume button to rotate switch ON/OFF.
CLOCK
•Press the Volume knob and Rotate to select Clock Fornat/Clock adjust/Date Fornat/
Date Set.
BEEP
•Press the Volume button to rotate switch ON/OFF.
ANIMATION
•Press the Volume knob and Rotate to select ON/OFF and time interval of animation
time.
DEMO MODE
•Press the Volume button to rotate switch ON/OFF.

Set the clock (CLK)
1. To display the Time press the CLK button.
2. To set the time, press and hold the CLK button and the time will start ashing.
3. Press the or button on the front panel or on the remote control to set the
time.
4. Press the CLK button and the minutes will start ashing.
5. Press the or button on the front panel or on the remote control to set the
minutes.
6. Short Press to Increase Bass Level
Change the source mode (SRC)
Press the SRC button to switch between the button RADIO, BT (Bluetooth), USB
(with a USB device inserted), AUX-IN mode (input assistant).
Loudness: LOUD ON/OFF
Press the LOUD button on the remote control to change the loud volume to boost
the bass output frequency, press again, to turn it o.
DSP SMART ANDROID/IOS APP CONTROL
8
Subwoofer Control Time Alignment Control
25 EQ ControlX’Over Control

9
GENERAL OPERATION
Preset Equalizer (EQ)
Press the EQ button on the front panel or on the remote control to switch between
EQ, OFF, CLASS, ROCK, POP, FLAT.
USB port
The USB port on this stereo device is designed for playing media from USB memory
devices.
Integrated Microphone
For voice reception when making a call using the hands-free system.
Auxiliary Input Connector
3.5mm auxiliary input stereo is designed for devices with line output 3.5 mm or
hearing aids.
Reset System
The RESET button is used to reset all factory settings parameters, this function can
be used when the LCD screen does not work properly or if the sound is distorted, or
when some of the controls are disable. Press the RELEASE button to release the
front panel and remove it, use a thin object with a small tip to press the RESET
button over 6 second.
RADIO OPERATION
Change Bands (BAND)
Press the BAND button to switch between the FM1, FM2, FM3 bands.
Each band stores up to six preset stations.
Manual Tuning ( / )
Press and hold the or button on the front panel or on the remote control to
enter manual tuning mode. In manual tuning mode, press the or button to
move the radio frequency number up or down one step.
Auto Seek Tuning ( / )
In standby mode or while not in manual tuning mode, quickly press the or
button to move to the next/previous available station automatically.
To Store/Recall Preset Stations
The radio can store 6 pre-set stations for each band (FM1, FM2 and FM3) for a total
of 18 preset stations.
Memorize a station:
• Turn the radio on and select the desired band and station.
• Select a station by or button.

10
• Press and hold the desired preset button (numbered 1-6 on the face of the radio)
for more than 2 seconds to save the station to that preset number.
To recall a preset station
• Select the desired band.
• Briey press a preset button (numbered 1-6) to recall the corresponding preset
station.
Automatic Store station/ Preset station scan (AMS)
Press and hold the AMS button for more than 2 seconds to select six strong stations
and store them in the current band. The radio will automatically scan the current
frequency and enter the six strongest stations into the preset memory positions for
that band. Briey press the AMS button on the remote control to recall each preset
station that saved in the memories in each band.
LOCAL/DX
In urban areas, most stations are strong enough and“LOCAL ON” mode should be
selected. Switch to LOCAL OFF mode to search for stations with weaker signals.
Press the LOC button on the remote control to choose local or distant reception
mode.
STEREO/MONO
FM station is received in stereo mode. However, if the signal is weak or reception is
not as good as you would like, switching to MONO mode usually improves the
overall sound quality. Press the ST button on the remote control to choose FM
STEREO or MONO audio eect.
USB OPERATION
Insert USB
To play les from a USB device, open the USB port cover and insert the USB device
into the port, the songs will begin to play automatically.

11
EJECT/USB
• To eject a USB device, press the button to stop playback, then remove the
USB device.
Play/Pause
Press the (play/pause) button to pause or resume playback
Next/Previous Track
• To play the next track, press the button.
• To play the previous track, press the button.
Fast Forward/Backward
• To fast forward, press and hold the button.
• To fast backward, press and hold the button.
Introduction Scan
Press the INT button to play the rst 10 seconds of each track, press again to stop
the introduction scan, and play the current track.
Repeating the same track
Press the RPT button to repeat the current track, press again to stop repeat
playback and resume normal playback.
Playing all tracks in random
Press the RDM button to play all tracks in random order, press again to cancel this
function.
Track/Folder Navigation
• During a disc, USB mode, press the 5/-10 button to go backward 10 tracks. Press
the 6/+10 button to jump forward 10 tracks.
• During a MP3 disc, USB mode, press and hold the 5/-10 button to go back the
previous folder. Press and hold the 6/+10 button to go to the next folder.
You can repeat this function depending on the number and level of folders.
• These buttons have no this function if the USB device has no folders.
Select the track or le to play in MP3 format
a. Press and hold the AMS button to direct select a music le. The “TRK0000” will
appear on the display.
b. Turn the volume control to select the“rst number”. Then press the button to
move the “rst number” to the left and enter the next number.
c. When the desired track number appears, conrm your selection by pressing SEL
button.

AUXILIARY INPUT OPERATION
This receiver is equipped with an external auxiliary input jack (3.5mm) on the front
panel which is compatible with audio output from an MP3 music player.
Plug such a player into the AUX IN jack with a 3.5mm stereo audio cable and press
the MODE button to switch to AUX input mode.“AUX IN” appears in the display.Lis-
ten to music from an external device through the speaker.
Note: Adjust the volume of the external device to a comfortable level with the
receiver volume control.
WIRELESS BT STREAMING OPERATION
Pair and Connect
Prior to using the Wireless BT device as a hands-free system for a Wireless BT-
enabled mobile phone for the rst time, you must pair and connect the two
devices as follows:
1. In any mode, prior to pairing and connecting, the BT logo in the LCD indicating
that no device is connected. To begin pairing, enable BT mode on your mobile
phone.
2. When the phone nds this ship/car audio system, the “AURA”name will be
displayed.
3. Choose the “AURA” from the device list to pair and connect with this
ship/car audio system. Upon conrming, the BT logo will stop ashing.
4. When pairing is complete, the mobile phone audio will automatically transfer to
the ship/car audio system whenever a call is made or received, or when the
mobile phone plays music.
Make a Call
• To make a call, dial the call directly from the paired mobile phone.
• To make a call with this Wireless BT hands free system:
a. When linking up the Wireless BT-enabled mobile phone to this BT hands-free
system, press the button to access the dial telephone number mode, then
press the“0~9”, * and # button on remote control to input the telephone
number, and the entered number will be shown on the LCD display.
b. If a number has been incorrectly inputted, press the button to delete it.
c. Press the button to make outgoing call.
Redial Last Dialed Number
• Press and hold the button on the control panel to redial the last dialed phone
number

12
Answer a Call
• When the mobile phone is called, the incoming telephone number displays on
the LCD.
• To receive the call, press the button on the control panel.
Reject a Call or End a Call
To reject or end the call, press the button on the control panel.
Switch Audio Between Car Audio and Mobile Phone
During a call, press the VOL knob button to switch the audio source from the car
audio system back to your mobile phone.
Adjust Talk Volume
• During a call, use VOL knob or VOL+ /VOL- button to adjust the volume level.
Audio Streaming (A2DP)
1. Press the /Mode button to enter BT mode and display pause in the LCD display.
2. When a mobile device is paired, music played through that device will automati
cally be heard through the car audio system.
3. Press the or button to play the next or previous on the mobile phone.
4. Press the button to pause or resume music playback.
REMOTE CONTROL
Name of buttons and location
1. (Power ON/OFF) Button switched on
2. VOL +/VOL- (volume up/down)
3. Band button, (reply call)
4. Button Tune down, seek down;
Track down, fast reverse
5. SEL (selection) button
6. button: Tune up, seek up; Track up, fast forward
7. Mute button, DEL (Delete) button
8. CLK (clock setting) button, (end call) button
9. button, preset station 1 button, keypad 1
10. INT (intro) button, preset station 2 button,
keypad 2
11. RPT (repeat) button, preset station 3button,
keypad 3

13
12. RDM (random), preset station 4button, keypad 4
13. -10 (previous 10 tracks), preset station 5button, keypad 5
14. +10 (next 10 tracks), preset station 6 button, keypad 6
15. ST (stereo) button, keypad 7
16. LOUD (loudness) button, keypad 8
17. AMS (automatic music search) button, keypad 9
18. MODE button, keypad
19. EQ (Equalizer) button, keypad
0
20. LOC (local)/DX button, keypad #
Remove Insulating Sheet
The remote control comes with an insulating sheet
attached to the underside of the remote control, as
illustrated on the right. The remote control will not
work until the insulating sheet is removed.
Replace Lithium Battery Cell
1. When the lithium cell battery becomes weak,
replace it as illustrated on the right.
2. Press and hold the movable block in the direction
indicated by arrow 1. At the same time, pull the cell
holder out of the remote control in the direction
indicated by arrow 2.
3. Replace the old cell with a new one, making sure
the (+) polarity is facing upward.
4. Re-insert the cell holder into the remote control
Remote Control Operation
Position the emitting window of the remote control toward the sensor window
of the unit.
• The operation angle for front panel remote control reception is about 30
degrees.
• The distance between the emitting window of the remote control and
the sensor window of the unit should remain less 5 meters.
• Cell leakage may cause damage to the remote control.
• Do not throw cells into as this may cause an explosion.
• Keep battery cells out of reach of children.

14
TROUBLESHOOTING
If you suspect something is wrong, immediately switch power o. Do not use the
unit in abnormal condition, for example without sound, or with smoke or foul
smell, can cause re or electric shock. Immediately stop using it and call the store
where you purchased it. Never try to repair the unit by yourself because it is
dangerous to do so.
General
1. Vehicle’s engine switch is not on.
• Turn your Vehicle’s key to ACC or ON.
2. Cable is not correctly connected.
• Check the connection.
3. Fuse is burnt.
• Replace fuse.
4. Volume is in mute or minimum.
• Check volume or mute on/o, adjust volume to a desired level.
5. Sound skips.
• The installation angle is more than 30°. Adjust the installation angle less than 30°.
6. The operation keys do not work.
• The built-in micro-computer is not operating properly due to noise. Press the
RESET button to restore the program to zero.
Radio
1. Much noise in broadcasts.
• Station or signal is too weak. Select other stations of stronger signal level.
2. The antenna cable is not connected.
• Insert the antenna cable rmly into the antenna socket of this receiver.
3. Preset station is reset.
• Battery cable is not correctly connected. Connect the battery cable to the
terminal that is always live.