JL Audio MMR-40 - User Manual

MediaMaster® NMEA 2000®
Network Controller
Product Description
The MMR-40 is a NMEA 2000® network
controller designed to add full-function
auxiliary control to MediaMaster® source units.
Featuring a color LCD display and water-
resistant (IP66 rated) design, the MMR-40
connects directly to vessel networks using
applicable NMEA 2000® cables and connectors
(sold separately).
Note: Remote control functionality is solely
derived from the MediaMaster® source
unit connected to the network. Please visit
www.jlaudo.com for the most current list of
compatible MediaMaster® source units.
What Is Included
(1) MMR-40 Network Controller
(1) Mounting gasket
(1) Mounting template
(4) Mounting screws
(1) Protective sun cover
(1) User Manual
Safety Considerations
• While this product is designed to be water-
resistant, it should never be submerged
under water or subjected to high-pressure
water spray.
• Do not mount in areas of extreme heat.
• Ensure this product is securely installed so
that it does not come loose in the event
of a collision/sudden jolt or as a result or
repeated vibrations during normal operation.
• Check before drilling to make sure that you
will not be drilling into a fuel tank, gas/brake
line, wiring harness, or other vital system.
• Secure all wiring as needed, using cable
ties or wire clamps to protect them from
moving parts and sharp edges.
• Always follow proper safety procedures and
wear eye-protection at all times with a dust
mask and gloves when cutting.
General Command Functions
Below is a list of general source unit functions
that are controlled by the MMR-40.
Note: The functionality of some commands will
vary depending on the specific MediaMaster®
source unit connected to the network.
MMR-40
Button /
Description
General Source Unit Functions
Power/Source
• Press to turn ON
• Press and hold to turn OFF
• Press to display the SOURCE: Select menu
VOL/SEL
(Knob)
Volume/Select
• Rotate to adjust volume
• Rotate to scroll thru menu options
• Press to choose/enter (menu options)
Back/Menu
• Press to go back or return to the previous screen
• Press to access available menu options
Favorites
• Press and hold to store a channel/station as a preset
• Press to view your list of stored presets and to access
the Favorites: Edit menu.
Settings
• Press to access the Tone, Balance & Crossover menu
• Press and hold to access the System Settings: Main Menu
Forward
• Press to tune in the next frequency/station/track
• Press and hold to seek to the next channel or
skip forward/fast-forward
Backward
• Press to tune in the previous frequency/station/track
• Press and hold to seek to the previous channel or
skip backward/fast-rewind
Mute/Play/
Pause
• Press to mute/unmute/pause/resume audio
• Press and hold to access available Play options
Day/Night
• Press to toggle between Day/Night display settings
of the MMR-40
• Press and hold to access the System Settings:
Display menu of the MMR-40

Summary

What Is Included

Safety Considerations

General Safety Precautions

Product is water-resistant but not submersible; avoid extreme heat, ensure secure installation, check for obstructions before drilling, secure wiring, and use eye protection.

General Command Functions

Power and Source Selection

Press to turn ON. Press and hold to turn OFF. Press to display SOURCE: Select menu.

Volume and Selection Knob

Rotate to adjust volume or scroll menus. Press to choose/enter menu options.

Back and Menu Navigation

Press to go back or access menu options.

Favorites and Presets

Press to store or view presets and access Favorites: Edit menu.

Settings Access

Press to access Tone, Balance, Crossover menu. Press and hold for System Settings.

Forward Track Control

Press to tune next station/track. Press and hold to seek forward.

Backward Track Control

Press to tune previous station/track. Press and hold to seek backward.

Mute and Playback Control

Press to mute/unmute/pause/resume audio. Press and hold for Play options.

Display Mode Toggle

Press to toggle Day/Night display. Press and hold for System Settings: Display menu.

Connections

Network and Update Ports

Equipped with NMEA 2000® Micro-C for vessel networks and USB for software updates.

Mounting and Installation

Panel Mounting Procedure

Step-by-step guide for cutting an opening, drilling pilot holes, and securing the MMR-40 unit to a surface.

JL Audio MMR-40 Specifications

General

Brand	JL Audio
Model	MMR-40
Category	Controller
Language	English