Dual DM90MIR Media Receiver with USB Mirror 9 Inch Digital TFT Display Owner’s Manual

June 5, 2024
Dual

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**Dual DM90MIR Media Receiver with USB Mirror 9 Inch Digital TFT

Display**

**

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Display-PRO**

WARNING

  • Upon installation of this monitor/media player (“unit”) into a vehicle, the driver of the vehicle must not operate this unit by watching videos or playing video games while driving. Failure to follow this instruction could lead to driver distraction which could result in serious injury or death to the vehicle’s occupants or persons outside the vehicle and/or property damage.
  • Several states prohibit the installation of monitors/media players if the screen is visible from the driver’s seat. If you reside in a jurisdiction which has enacted such a law, this unit must not be installed so that the screen is visible from the driver’s seat. When installing this unit in the front console/dashboard, the unit must be positioned so that it is facing the front passenger seat only. Failure to follow this instruction could lead to driver distraction which could result in serious injury or death to the vehicle’s occupants or persons outside the vehicle and/or property damage.
  • This unit is designed so that it may be operated only when the vehicle is in “Park” and the parking brake is fully engaged. To this end, this unit includes a parking brake lock-out feature which prohibits the unit from operating if the vehicle is not in “Park” and/or the parking brake is not fully engaged. When installing this unit, the installer must connect the parking brake detect wire to the parking brake mechanism in order to make the parking brake lock-out feature operable. DO NOT simply ground the parking brake detect wire to a metal portion of the vehicle. Failure to properly install the parking brake lock-out feature could lead to driver distraction which could result in serious injury or death to the driver’s occupants or persons outside the vehicle and/or property damage.
  • Once the parking brake lock-out feature is installed, the owner/user must not attempt to disrupt/neutralize the parking brake lock-out feature by (a) partially engaging the parking brake and/or (b) purchasing/using any device or unit designed to send necessary brake signals to the unit. Failure to follow these instructions could lead to driver distraction which could result in serious injury or death to the driver’s occupants or persons outside the vehicle and/or property damage.
  • When operating this unit, keep the unit’s volume level low enough so that the vehicle’s occupants can hear traffic-related sounds such as police and emergency vehicles. Failure to follow this instruction could lead to driver distraction which could result in serious injury or death to the vehicle’s occupants or persons outside the vehicle and/or property damage.

FCC Compliance

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: this device may not cause harmful interference, and this device must accept any interference received, including interference that may cause undesired operation.
Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

Preparation

Before You Start

  • Disconnect the negative battery terminal. Consult a qualified technician for instructions.
  • Avoid installing the unit where it would be subject to high temperatures, such as from direct sunlight, or where it would be subject to dust, dirt or excessive vibration.Dual-DM90MIR-Media-Receiver -with-USB-Mirror-9-Inch-Digital-TFT-Display-1

**Screen Rotation

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**Wiring Diagram – Inputs/Outputs

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Note:
When replacing a fuse, make sure to use the correct type and amperage. Using an incorrect fuse could cause damage. The unit uses (1) 15 amp ATC mini style fuse located on the power connector.
Wiring Notes:
Subwoofer outputs
The Subwoofer preamp audio outputs (Blue jacket with Black RCA) is active in all audio modes.
Rear camera input
A rear view camera (not included) can be used with the Camera input.

**Control Locations

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-Inch-Digital-TFT-Display-4**

The radio display features the following functions and displays:

  1. VOICE ACTIVATION BUTTON
  2. SOURCE/HOME
  3. POWER/VOLUME/MUTE
  4. PREVIOUS BUTTON
  5. NEXT BUTTON
  6. RESET / USB PORT

Operation

General Operation

Power On/Off

  • Momentarily press to turn the unit on. Press and hold to turn the unit off.

Volume

  • Press “VOL+” or “VOL-” to increase or decrease the volume level.

Mute

  • Momentarily press MUTE to silence the audio. Momentarily press MUTE again to return to the previously selected volume. Rotating the volume knob while the volume is muted will also cancel the mute function.

Mode

  • Press MODE at the top left corner of the screen to display the main menu. Press the Radio/Bluetooth/USB Mirror/USB/Settings. Note: Modes of operation can also be accessed by selecting the corresponding icon from the main menu.

Main Menu

  • Operation Mode Selection: Press the icon at the top left corner of the screen to display the OSD main menu. Press the Radio/Bluetooth/USB Mirror/USB/Settings. in the Main meu pate to select the desired source.

Dimmer

  • Press the icon to adjust the brightness.

A/V In

  • Connect external audio/video devices to the rear RCA Type A/V Input

USB

  • Insert a USB flash drive to play MP3/FLAC files.

Reset

  • To resolve abnormal operation or if the unit is inoperable, Press the RESET button located behind the front panel directly under USB port. The unit will reset the main processor to the default settings, Note: Use the tip of a pen to access the reset button. To restore the factory default software settings.
Setup Menu
  • From the Main Menu screen, select Setup to access the Settings menu and select from eight categories represented by the icons on the top of the screen: General, Audio, Display, Others. Select the category, and adjust any of the available options using the touch screen.Dual-DM90MIR-Media-Receiver -with-USB-Mirror-9-Inch-Digital-TFT-Display-6

General:

  • Adjust the date and time- Day, Month, Year, Hour, Minute and Format.
  • Time Format- Select between 12-Hour and 24-Hour Time Format.
  • Beep Tone – Turn the Beep Tone On or Off.
  • Radio Region – Select Radio Region.

Audio:

  • Equalizer-Select between the following EQ presets: Default, User, Classic, Rock, Jazz, Electric, Pop, Soft (allows user to enter custom EQ settings).
  • Time Alignment-To adjust time correction settings select“PRESET 1” ”PRESET 2“or“PRESET 3”.
  • Loudness – Touch screen button to turn the Loudness function on/off.
  • Subwoofer Control – Touch the button to turn the Subwoofer Control On/Off.
  • Subwoofer Gain – Select subwoofer -6 to 6 ( 0 is default ).

Display:

  • Brightness- Press > or < to adjust to desired level. (O Minimum/20 maximum: Day: 20 is default, Night: 6 is default).
  • Dimmer Mode- Press > or < to adjust to change the mode (Auto/Day/Night).
  • Auto- Switches the dimmer to on or off automatically according to your vehicle’s headlights turning on or off.

Others:

  • Factory Default-Reset Bluetooth Settings or Reboot System.
  • System Version-Displays soft ware version of unit .
Audio Operation

Equalizer Menu

From the Main Menu screen, Press the Equalizer icon on the main menu screen to adjust Fader and Balance controls, Equalizer (8-Band Tone Control and 8 Presets EQ Settings).

Time Alignment Menu

  1. Surround Presets
  2. Time Delay Setting
  3. Speaker Positions
  4. Reset to Default Settings

Adjustments:
To properly set the time alignment, you will need measure the distance from each speaker (in ft) to where you want the “center stage” to be. for example, if you want the position to be at the divers seat, then meausre each speaker side (front & rear) to where your head is located and set the distance accordingly. Each vehicle will vary in distance, so settings will be different in each case.

**AM/FM Tuner Operation

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-Inch-Digital-TFT-Display-7**

Radio Operation
  • From the main menu, touch Radio icon on the screen to select AM/FM tuner mode.
  1. Main Menu     Press icon to return to Main Menu screen.
  2. Current Mode Indicator     Display status of various tuning functions including Auto.
  3. Local / Distance    Press DX/LOC text to turn on the local or distance.
  4. Dimmer    Press the icon to adjust the brightness.
  5. Seek Tune Down    Press to automatically tune to a lower frequency.
  6. Seek Tune-Up      Press to automatically tune to a higher frequency.
  7. Preset Stations    To store a station as a preset in the current band, tune to the desired station, then press the desired preset number from the list. Press any preset in the list to recall and begin                                       playback of that station. (Hold this button down for a few seconds and it will switch between AS and PS)
  8. FM                   Press to toggle between FM1, FM2 and FM3.
  9. AM                  Press to toggle between AM1 and AM2.
  10. AS/PS            Auto Store Presets: Press and hold AS/PS to automatically program the FM(18)/AM(12) available into the presets in the current Band.  Preset Scan: Press AS/PS to scan through all                            tunable presets in the current band and play them for 3 seconds each.
  11. EQ                 Press the icon to adjust the Equalizer setting.
  12. Keypad               Direct Search Keypad

Media Compatibility

File Type MP3

File System

| ****

FAT

| FAT 12| X
FAT 16/FAT 32| ü
File Extension| .mp3/.MP3/.Mp3/.mP3/.flac/ogg/.Xvid| ü
.rmp/.m4a| X


MPEG

Format

| MPEG 1| ü
MPEG 2| ü
MPEG 2.5| ü


Sampling Frequency

| MPEG 1| 32/44.1/48kHz
MPEG 2| 12/16/22.05/24kHz
MPEG 2.5| 8/11.025/12kHz


Bitrate

| MPEG 1| 32 ~ 320kbps
MPEG 2| 8 ~ 160kbps
MPEG 2.5| 8 ~ 160kbps





Other Information

| Directory Depth| Unlimited
File Name Length| 32 bytes
Total File Number| 2000 files
Total Folder Number| 200 folders
File Number via Folder| 2000 files


MP3 ID3 TAG

| ver.1.x| ü
ver.2.x| ü
Title, Artist, Album| ü

The following types of files are not compatible:

  • MP3 PRO format, MP3 playlists
  • RMP format
  • AAC, protected AAC, M4A format

Playback Order
MP3 playback sequence begins in the root folder of the USB device. Any empty folders or folders that do not include MP3 files are skipped.

Compatible Recording Formats
ISO9660 standards:

  • Maximum nested folder depth is 8 (including the root folder).
  • Valid characters for folder/file names are letters A-Z (all caps), numbers0- 9, and “_” (underscore). Some characters may not be displayed correctly, depending on the character type.
  • This device can play back files in Joliet and other standards that conform to ISO9660. MP3 written in the formats other than the above may not play and/or their file names or folder names may not be displayed properly.

**Bluetooth

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USB Mirror™

To set up USB Mirroring capabilities, select USB Mirroring from the main menu and follow the on-screen directions for connecting your Android or iPhone. Once completed, the unit will mirror phone display onto the unit’s on-screen display. To return to the main menu, press the lower left corner of the screen to display and select the home button.
Note: Apple and Android operating system updates may cause your receiver to malfunction. This can usually be solved by doing a software/firmware update on the receiver. To see if your receiver has the latest firmware, contact customer service at 1-866-382-5476.
Note: Mirroring is enabled only when the vehicle is in park and the parking brake engaged.

  1. Main Menu

  2. Current Mode Indicator

  3. Rotation icon

  4. Audio Mix On/Off

  5. Reconnect Mirroring

  6.  To return to main menu from USB Mirroring mode, touch the screen, will display the Home icon and Rotation icon, Audio Mix and Reconnect buttons on the top of the display.

  7.  Home icon- Return to Home Menu.

  8.  Rotation icon- Press rotation icon to Rotate the Mirrored screen from horizontal to vertical.(Tip: Manually rotate the monitor to the left or right until locked in the vertical/horizontal position.)

  9.  Audio Mix On/Off icon- When turned on, the previous source in Radio mode will be played in the background.

  10.  Reconnect Icon- Reconnects USB Mirroring if the connection is not working properly.

Rear RCA A/V Input

A/V Input
Connect an optional audio/video source into the RCA (rear) input. Adjust volume on the external audio source as needed (if connected to the headphone output of the device).

SWC Input Operation

The built-in SWC Interface is compatible with PAC steering wheel control modules. The PAC SWI-RC is recommended. A third-party adapter must be used in order for the DM90MIR to be compatible with any steering wheel controls. The following controls are available for most vehicles.

1. Reset 4. Seek/Track Down (-) 7. Volume Down (-) 10. BT End
2. Mode 5. Mute 8. Band
3. Seek/Track Up (+) 6. Volume Up (+) 9. BT Talk

PAC SWI-RC Installation Hints

  1.  Set “Radio Select Switch”. Set the SWI-RC to position 7 – “Pioneer/Other/Sony”.
  2.  To program, use the Pioneer/Sony/Other radio function mapping order for DUAL units.
  3.  When programming the SWI-RC, if a function is not supported (or not desired), then the function MUST be skipped as per the PAC SWI-RC instructions.
  4.  The SWC function MUST be programmed in the correct order per the PAC SWI-RC radio function mapping order instructions.

Function Order

|

Function Mapping

| SWI-RC (3.3VDC Reference)
---|---|---
Center Pin (Ring) Voltage (Function Select)| Tip Pin Voltage
1| Reset| |
2| Mode| |
3| Seek + / Track +| H 3.3v| 0.6
4| Seek – / Track –| H 3.3v| 1.81
5| Mute| H 3.3v| 1.01
6| Volume +| H 3.3v| 2.07
7| Volume –| H 3.3v| 2.32
8| Band| H 3.3v| 2.73
9| BT Talk| L 0.0V| 0.60
10| BT End| L 0.0V| 1.01

Troubleshooting

General

Problem| Cause| Action


Unit will not turn on (no power)

| Yellow wire not connected or incorrect voltage Red wire not connected or incorrect voltage| Check connections for proper voltage (11~16VDC)
Black wire not connected| Check connection to ground
Fuse blown| Replace fuse(s)


Unit has power (but no sound)

| Speaker wires not connected| Check connections at speakers
One or more speaker wires touching each other or touching chassis ground| Insulate all bare speaker wires from each other and chassis ground


Unit blows fuse(s)

| Yellow or red wire touching chassis ground| Check for pinched wire
Speaker wires touching chassis ground| Check for pinched wire
Incorrect fuse rating| Use fuses with correct rating
Unit has audio (but no video)| Parking brake safety circuit not connected Parking brake not applied| Check connections at parking brake

Apply parking brake as described on page 26

IR remote does not work| Dead battery| Replace battery

Specifications

Limited One Year Warranty

This warranty gives you specific legal rights. You may also have other rights which vary from state to state.
Dual Electronics Corp. warrants this product to the original purchaser to be free from defects in material and workmanship for a period of one year from the date of the original purchase.
Dual Electronics Corp. agrees, at our option, during the warranty period, to repair any defect in material or workmanship or to furnish an equal new, renewed or comparable product (whichever is deemed necessary) in exchange without charges, subject to verification of the defect or malfunction and proof of the date of purchase. Subsequent replacement products are warranted for the balance of the original warranty period. Who is covered? This warranty is extended to the original retail purchaser for products purchased from an authorized Dual dealer and used in the U.S.A. What is covered? This warranty covers all defects in material and workmanship in this product. The following are not covered: software, installation/removal costs, damage resulting from accident, misuse, abuse, neglect, product modification, improper installation, incorrect line voltage, unauthorized repair or failure to follow instructions supplied with the product, or damage occurring during return shipment of the product. Specific license conditions and copyright notices for the software can be found via www.dualav.com.

What to do?

  1.  Before you call for service, check the troubleshooting guide in your owner’s manual. A slight adjustment of any custom controls may save you a service call.
  2.  If you require service during the warranty period, you must carefully pack the product (preferably in the original package) and ship it by prepaid transportation with a copy of the original receipt from the retailer to an authorized service center.
  3. Please describe your problem in writing and include your name, a return UPS shipping address (P.O. Box not acceptable), and a daytime phone number with your shipment.
  4. For more information and for the location of the nearest authorized service center please contact us by one of the following methods:

Exclusion of Certain Damages: This warranty is exclusive and in lieu of any and all other warranties, expressed or implied, including without limitation the implied warranties of merchantability and fitness for a particular purpose and any obligation, liability, right, claim or remedy in contract or tort, whether or not arising from the company’s negligence, actual or imputed. No person or representative is authorized to assume for the company any other liability in connection with the sale of this product. In no event shall the company be liable for indirect, incidental or consequential damages.

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