DS18 MRX2 AM FM Radio USB and Bluetooth Instruction Guide

DS18 MRX2 AM FM Radio USB and Bluetooth

Introduction

A Marine Head Unit Radio with preset EQs, Bluetooth, AM/FM, and an easy-to- read LCD screen with RGB buttons, the DS18 MRX2 does it all. You can use the head unit with confidence in tough and wet conditions thanks to the IP65 waterproof classification. This radio produces an astonishing amount of power. Most entry-level speakers can be driven by 4×15 watts rms with a 4 ohm load and 4×25 watts rms with a 2 ohm load. (To install tower speakers and subs, amps are needed.) For direct music playback from your phone or any other BT source, use the Bluetooth pairing features of version 5.0. The USB can be used to charge your gadget of choice and transfer music at the rate of 2a.

SAFETY INSTRUCTION &CAUTION

This symbol with “CAUTION” is intended to alert the user to the presence of important instructions. Failure to heed the instructions could result in injury or unit damage.

To prevent injury and damage to the unit, please read and follow the instructions in this manual. If you feel unsure about installing this system yourself, have it installed by a qualified technician.

Before installation, disconnect the battery negative (-) terminal to prevent damage to the unit, fire, and / or possible injury.

FCC COMPLIANCE STATEMENT

This equipment has been tested and found to comply with the limits for a Class B digital device, according to part 15 of the FCC Rules. These limits are designed to provide more reasonable protection against harmful interference in a residential installation.

OPERATION IS SUBJECTED TO THE FOLLOWING TWO CONDITIONS:

(1) This device may not cause harmful interference, and (2) the device must accept any interference received, including interference that may cause undesired operation.

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, you are encouraged to try to correct the interference by one of the following measures:

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

SPECIFICATIONS

GENERAL:

Operating Voltage:

Low Voltage Warning Alert: Waterproof Rating:

UV/Salt Protection: Buttons:

Screen Panel:

|

10.5-16 Volts YES(< 11V) IPX6

YES

Rubber + RGB Backlit (synced with LCM) Gorilla Glass with OCA Full Bonding

---|---
DISPLAY:

Type: Backlight:

|

3″ Liquid Cristal Module 7 Colors Selectable

(Auto/ White/ Red/ Blue/ Green I Purple/ Cyan / Yellow)

AUDIO:

Power Output:

RMS:

Max:

Min Load:

Frequency Response: RCA Pre-Out Voltage: Output Impedance: Equalizer:

Presets:

Subwoofer Control: Audio Zones:

Independent Zone Control: Audio Input:

|

4x 15W@4ohm 4x 25W@2ohm 4 x 50W@2ohm

2 ohm Stable per Channel 20Hz to 20Khz

4 Volts 500ohm

2 Bands (Bass 80Hz, Treble 12Khz) YES (S-Bass / Vocal /Powerful / clarity) Level (-10to +10)

2 Zones (Stereo + Subwoofer each) YES (Level/Tone)

L+R RCA (Aux Input)

TUNER:|
FM Frequency Range:| 87.5 -107.9 MHz
AM Frequency Range:| 530 – 1710 KHz
Weather Band:| 162.40 – 162.55 MHz
NOAA Weather Band:| YES Compatible
Tuner Presets:| 18 FM / 12 AM / 6 WB
Radio Data System:| YES (AF/ TA/ NEWS) Selectable
CONNECTIVITY:|  |
Bluetooth Version:| 5.0 + EDR
Audio Streaming:| A2DP
USB Compatibility:| v2.0
USB Capacity:| 64 Gb Max
USB Charge Capacity:| 2.1Amp
Audio Files Compatibility:| MP3, WMA
Remote Control:| Wired 3.5mm Jack Input (Compatible with MXRC)

INSTALLATION/ MOUNTING

ACCESSORIES

1. Main Unit
2. Power/Speaker Harness
3. Screws X 2PCS
4. Hex Head Screws X 2PCS
5. U Bracket
6. Instruction Manual

& CAUTION

1. This player should be installed by a professional technician.
2. Please read the instruction and operation of the equipment carefully before installing.
3. Make sure to connect other wires before power connection.
4. To avoid a short circuit. Please make sure all the exposed wires are insulating.
5. Please fix all the wires after installation.
6. Please make the connection to the player accordingly to this instruction manual. A wrong connection may cause damage.
7. This player only fits for a 12V DC device and please make sure your boat belongs to this kind of cathode grounding electrical system.
8. Please connect the wires rightly. Wrong connection will cause malfunction or damage the electrical system.

MOUNTING (USING U BRACKET)

To mount the unit, you will need to find a flat surface with adequate clearance behind it that provides enough clearance for the unit and all its necessary wiring.

1. Once you have determined a mounting location, you will need to cut a circular hole 3″ {77mm) in diameter.
2. After the hole is cut slide the unit and wiring through the hole.
3. Take the U bracket and slide over the two studs on the back of the unit. Tighten down with supplied nuts.
4. Plug in all wiring harnesses and cables. Refer to the wiring diagram for wire harness connection types.

MOUNTING BRACKET

WIRING CONNECTION

& CAUTION

1. This player can only be used by the 12V DC cathode grounding electrical system.
2. Do not connect the battery terminals until the player is fully assembled.
3. Please make sure to connect the yellow wire to the positive of the battery(+).
4. When change the fuse. Please make sure the specifications are same.
5. Using good quality 4-2 ohm speaker can enhance the audio performance of the system.

MEASUREMENTS

BASIC OPERATION

1. POWER / BUTTON Press Q) button to turn on. Press the key again to turn off the unit.
2. BAND/ BUTTON Press BAND button to FM1/FM2/FM3/AM1/AM2/WB. Press and hold BAND button for 3 seconds to auto store the stations.
3. DISP / BUTTON Shortly press DISP button to show the clock, then press and hold DISP button again to set time, Rotate Vol to set hour time display, press DISP key again to turn to minute time display, rotate Vol to set minute time display. After setting the time, it will automatically save and exit within 5 seconds.
4. ZONE / BUTTON Press ZONE button to ZONE1 / ZONE2 / ZONE1 +ZONE2.
5. PLAY/ PAUSE BUTTON In RADIO/AUX source press PLAY/PAUSE button for MUTE on/off function. In USB/BT source press PLAY/PAUSE button for Pause/ Play function.
6. SEEK UP BUTTON In RADIO source, shortly press FORWARD button to Seek up, press and hold the button to show next station. In USB/BT source press FORWARD button to next song / file, press and hold the button to fast forward play.
7. REWIND SEEK DOWN BUTTON In RADIO source, shortly press REWIND button to Seek down, press and hold the button to show back to the previous station. In USB/BT source press REWIND button to previous song / file, and press and hold the button to play back quickly.

SRC BUTTON

Press SRC button to Mode change Radio/ BT/ USB / AUX-IN.

SEL BUTTON FUNCTIONS

1. IN ZONE1 OR ZONE2, AUX/BT MODE: Shortly press SEL button to BAS/ TRE /SUB/ EO (rotate the VOL to select FLAT/ OFF, S-BASS, VOCAL, POWERFUL, CLARITY)/ LOUD (ON / OFF)/ COLOR LIGHT (rotate the VOL to select AUTO, WHITE, PURP, CYAN, YELLOW, RED, GREEN)/ BEEP (OFF/ON) one by one. Press and hold SEL button to TA (OFF/ ON)/ AF (OFF/ ON)/ NEWS (OFF/ ON) one by one.
2. IN ZONE1 OR ZONE2, RADIO MODE: Shortly press SEL button to BAS/ TRE /SUB/ EQ (rotate the VOL to select FLAT/ OFF, S-BASS, VOCAL, POWERFUL, CLARITY) / LOUD (ON/OFF) /COLOR LIGHT (rotate the VOL to select AUTO, WHITE, PURP, CYAN,YELLOW, RED, GREEN) / BEEP (ON/OFF) / STEREO (MONO) /LOCAL (DX) one by one. Press and hold SEL button to TA (OFF/ ON)/ AF (OFF/ ON)/ NEWS (OFF/ ON) one by one.
3. IN ZONE1 OR ZONE2, USB MODE: Shortly press SEL button to BAS/ TRE / SUB /EQ (rotate the VOL to select FLAT/ OFF, S-BASS, VOCAL, POWERFUL, CLARITY)/ LOUD (ON / OFF) / COLOR LIGHT (rotate the VOL to select AUTO, WHITE, PURP, CYAN, YELLOW, RED, GREEN)/ BEEP (OFF/ ON) one by one. Press and hold SEL button to RDM( then rotate the VOL to select OFF/FOLD/ALL)/ RPT(then rotate the VOL to select ONE/ FOLD/ ALL) /TA (OFF/ ON) /AF (OFF/ ON)/ NEWS (OFF/ ON) one by one.
4. IN ZONE1 + ZONE2, AUX/BT MODE: Shortly press SEL button to COLOR LIGHT (rotate the VOL to select AUTO, WHITE, PURP, CYAN, YELLOW, RED, GREEN)/ BEEP (OFF/ON) one by one. Press and hold SEL button to TA (OFF/ ON)/ AF (OFF/ ON)/ NEWS (OFF/ ON) one by one.
5. IN ZONE1 + ZONE2, RADIO MODE: Shortly press SEL button to COLOR LIGHT (rotate the VOL to select AUTO, WHITE, PURP, CYAN, YELLOW, RED, GREEN)/ BEEP (OFF/ ON)/ STEREO (MONO)/ LOCAL (DX) one by one. Press and hold SEL button to TA (OFF/ ON) /AF (OFF/ ON)/ NEWS (OFF/ ON) one by one.
6. IN ZONE1 + ZONE2, USB MODE: Shortly press SEL button to COLOR LIGHT (rotate the VOL to select AUTO, WHITE, PURP, CYAN, YELLOW, RED, GREEN)/ BEEP (OFF/ ON). Press and hold SEL button to RDM (then rotate the VOL to select OF F/ FOLD/ ALL)/ RPT (then rotate the VOL to select ONE/ FOLD/ ALL)/ TA (OFF/ ON) /AF (OFF/ON)/ NEWS (OFF/ ON) one by one.

FUNCTION SETTING / OPERATION

SETTINGS

DX I LOC (DISTANCE / LOCAL):

• LOC: Receive the strong signal station only in seek station.\
• DX: Receive strong and weak signal station in seek station.

STEREO / MONO:

• STEREO: Receive FM stereo signal.
• MONO: Change FM stereo to monophonic. It can reduce the noise when the signal is weak.

RESET THE UNIT

Press and hold PLAY/PAUSE button for 5 seconds to reset the unit.

RADIO (AM / FM / WB) OPERATION

Press SRC button to select the Radio source option (FM / AM / WB). To auto seek station, press and hold BAND button for 3 seconds to auto store radio station. To manual seek station, shortly press FORWARD/REWIND button to Seek up/down radio station, press and hold the FORWARD/REWIND button to next/ previous station.

USB OPERATION

After your device is connected to the source unit, this feature allows you to control the playback of your device directly from the unit. Press the SRC button to select the USB source option. To play or pause a song, short press the PLAY/PAUSE button. To skip a track forward, short press the FWD button. To skip a track backward, short press the REV button. To access USB specific settings, Press and hold the SEL button for the list of settings (Random play>Repeat). Use the encoder to select the option to change.

AUX (AUXILIARITY INPUT) OPERATION

After your device is plugged into the source unit, this feature allows you to play music from your device. Press the SRC button to select the AUX source option and use your plugged-in device to control song I track selection, PLAY/ PAUSE, and track skip FWD/ REV.

BLUETOOTH OPERATION

After your device is paired to the source unit, this feature allows you to control the playback of your device directly from the unit. Press the SRC button to select the BLUETOOTH source option. Then searching and selecting the Bluetooth device “MRX2” from your phone and input password “0000” If it needs. When paired successfully, the BT symbol will be shown on LCD.

To play or pause a song, short press the PLAY/ PAUSE button.

To skip a track forward, short press the FWD button. To skip a track backward, short press the REV button.

TROUBLESHOOTING

Basic

Unit does not turn on

| Blown fuse| Check fuse of the unit, replace with correct rating.
Vehicle’s ignition is off| If connected following the instructions, the unit will not operate with ignition off
Voltage applied to Red wire is not between 10.5 & 16 volts or there is no voltage present.| Check battery, connections and fuses and repair or replace as necessary. If voltage is above+ 16 volts, have the electrical system inspected by an authorized service center.
Unit is not properly grounded.| Check wiring and repair as necessary.
Radio Tuner
Tuner fails to tune any stations| No antenna or disconnected or open connection in cable.| Check all connections and repair as necessary.
Unable to tune stations in seek mode| You are in a weak signal area.| Make sure the tuner LOC mode is off.
USB Devices

USB device cannot be inserted

| The USB device has been inserted in the wrong direction.| Reversing the connection direction of the USB device, try reinserting.
The USB device connector is broken.| Replace with a new USB device.

USB device is not recognized

| The USB device is damaged.| Disconnect USB device and reconnect. If the device is still not recognized, try replacing with a different USB device.
Connectors are loose.
No Sound heard with the display “No File” shown| No MP3/ WMA files are stored on the USB device.| Store these files properly on the USB device.

Sound skip or is noisy

| MP3/ WMA files are not created properly.| Use MP3/WMA files that are encoded correctly.

MP3 is not playing back

| Writing error occurred. The MP3 format is not compatible.| Make sure MP3 has been written in a supported format.
Bluetooth

Cannot pair Bluetooth

| The Bluetooth function of the device is not enabled.| Refer to the user manual of the device for how to enable the Bluetooth function.
The audio quality is poor after connection with a Bluetooth enabled device|

The Bluetooth reception is poor.

| Move the device closer to the audio system or remove any obstacle between the device and the system antenna.

FAQs

Can a standard radio be installed in a boat?****

Although it is conceivable, it is not advised to use a typical car radio system on a boat.

A marine stereo is what?****

A stereo that may be used on a boat or other marine-themed vehicle is referred to as a marine stereo.

What kind of wire do ships use?****

A unique kind of extremely flexible cable manufactured with a high strand count of individually-tinned copper conductors is known as marine electrical wire, sometimes known as marine grade electrical wire or marine cable.

How much electricity is consumed by a maritime radio?****

Boaters frequently mount radios that have a legal maximum of 25 watts and, depending on the antenna’s height, can communicate over distances of up to 60 miles.

What qualities need to a marine stereo have?****

A high-quality marine stereo will have a peak power output of 40 to 60 watts per channel. Since most stereos have four channels, you should expect a peak power output of between 160 and 240 watts overall.

Is an amp necessary for my marine stereo?****

The majority of maritime stereos come equipped with an amplifier, some of which are very powerful. Without an external amplifier, good sound is definitely feasible.

Are there FM or AM marine channels?****

The International Telecommunication Union has designated the frequency range between 156 and 174 MHz, inclusively, as the VHF maritime mobile band, where it uses FM channels.

A maritime radio is what kind of radio?****

A Very High Frequency (VHF) Marine Radio enables rapid communication between your boat and other boats, marinas, bridges, and the United States Coast Guard, while it is not necessary in recreational boats under 65.5 feet long.

On a maritime radio, how far can you talk?****

From the bow to the stern, below and above deck, and more, you can communicate with one another! Similar to VHFs and cell phones, the range is normally 1-2 miles and line-of-sight.

Marine radios are they waterproof?****

Marine stereos can either be watertight or spray-resistant. Look for CD slots that are either covered by a water-resistant faceplate or that are gasket- sealed with rubber.

What power output does an FM radio use?****

Typically, commercial radio stations broadcast at 50,000 or 100,000 watts.

A radio uses how many amps?****

About 5 amps of electricity are required by a standard stereo head unit.

Can you access marine radio from a land station?****

That is forbidden. Fixed or portable marine VHF radios are not permitted to be operated on land at any time. The rule applies. A VHF radio cannot transmit on the marine band once it has reached land.

Is an antenna required for a marine radio?****

Any marine VHF radio must have a suitable antenna to operate properly. How well other stations can hear your radio’s signal will be greatly influenced by the antenna you choose.

How much energy can 25 watts transmit?****

For instance, the greatest range of a 25-watt maritime radio is around 60 nautical miles (111 km) between antennas mounted on tall ships.

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