Troubleshooting a System

The key to finding the problem in a troubled sound system is to isolate parts of that system in a logical fashion to track down the fault.

Description of the Diagnostic system built into the MLX-100 Maxx-Link Bridging Module:

1.Clipping Indicator: Red Illumination when signal is clipped.

2.Normal Operation: Green Illumination, when signal is unclipped up to 9volts.

The diagnostic system will not shut down the MLX-100 or the amplifier(s), although the amplifier(s) own protection circuitry may shut the amplifier(s) down should a fault status occur. At which time you will need to consult the owners manual for that particular amplifier.

Low output power

1 - Check that level controls have been set up properly.

2 - Make sure that the battery voltage, as measured at the amplifier’s and MLX-100’s +12 volt and ground terminals, is 11 volts or more. 3 - Check all +12 volt and ground connections.

Fuses blowing

1 - Insure that the voltage to the unit does not exceed 15 volts.

2 - A short on the main +12 volt cable from the battery to the vehicle chassis will cause the main fuse to blow.

3 - If the MLX-100 is blowing fuses continually with only +12 volt, ground and remote leads connected, the unit may be faulty.

System does not turn on 1 - Check all fuses.

2 - Check all connections.

3 - Measure the +12 volt and remote turn on voltages at the amplifier and MLX-100 terminals. If these are non existent or low, take voltage measurements at fuse holders, distribution blocks, the head unit’s +12 volt and remote leads to localize the problem.

Noise problems

System noise can be divided into two categories, hiss, and electrical interference.

Hiss, or white noise

1 - High levels of white noise usually occur when level controls are turned up too high - readjust according to the procedures in the appropriate application section.

2 - Another major problem that can cause excessive hiss, is a noisy head unit - unplug the MLX-100 input RCA cables, and if the hiss level reduces, the source unit is at fault.

Electrical interference

The inside of an automobile is a very hostile electrical environment. The multitude of electrical systems, such as the ignition system, alternator, fuel pumps, air conditioners, to mention just a few, create radiated electrical fields, as well as noise on the +12 volt supply and ground. Remember to isolate the problem - first unplug MLX-100 input RCA cables, if the noise is still present, check the speaker leads, if not, plug the RCA’s back, and investigate the source driving the MLX-100, one component at a time.

A ticking or whine that changes with engine RPM:

1 - This problem could be caused by radiation pickup of RCA cables that are too close to a fuel pump or a distributor.

2 - Check that the head unit ground is connected straight to the vehicle chassis, and does not use factory wiring for ground.

3 - Try to supply the head unit with a clean +12 volt supply directly from the battery +, instead of using a supply from the in dash wiring/fusebox.

A constant whine:

This type of noise can be more difficult to pinpoint, but is usually caused by some kind of instability, causing oscillations in the system. 1 - Check all connections, especially for good grounds.

2 - Make sure that no speaker leads are shorting to exposed metal on the vehicle chassis.

3 - RCA cables are notorious for their problematic nature, so check that these are good, in particular the shield connections.

MLX-100 specifications

The Maxxsonics MLX-100 is an advanced multimedia receiver designed for audiophiles and everyday users seeking powerful sound and versatile features in a compact unit. Known for its superior audio quality, the MLX-100 integrates a variety of modern technologies and functionality suitable for various in-car entertainment scenarios.

One of the standout features of the MLX-100 is its high-efficiency amplification. This unit utilizes Class D technology, which provides exceptional power output while consuming less energy and minimizing heat generation. The result is a highly efficient audio experience that enhances loudness without compromising on sound clarity.

The MLX-100 boasts a user-friendly interface, equipped with a touchscreen display that simplifies navigation through its diverse functionalities. With intuitive controls, users can easily access their favorite tunes, adjust settings, and customize audio preferences on-the-go. This multimedia receiver supports multiple audio sources, including Bluetooth connectivity, USB inputs, and auxiliary ports, allowing users to play music from smartphones, tablets, and flash drives seamlessly.

Additionally, the MLX-100 features advanced digital signal processing (DSP) technology. This capability allows for fine-tuning of the audio experience, with options for equalization, crossover settings, and time alignment to ensure that every listener enjoys an optimal soundstage regardless of their seating position in the vehicle. The receiver can also support the latest high-resolution audio formats, making it an ideal choice for those who value sound fidelity.

For enhanced connectivity, the MLX-100 includes built-in Wi-Fi, enabling users to stream music directly from their favorite apps without the need for pairing a device each time. This is complemented by hands-free calling features, ensuring that drivers can remain connected and safe while on the road.

The build quality of the MLX-100 is equally impressive, featuring a durable casing that can withstand the rigors of installing in a vehicle. Its compact design allows for easy integration into various dashboards, and the sleek aesthetics enhance the visual appeal of any car interior.

In conclusion, the Maxxsonics MLX-100 stands out as a versatile multimedia receiver that combines power and functionality. With its Class D amplification, user-friendly interface, advanced DSP capabilities, and robust connectivity options, it caters to the needs of modern drivers desiring an exceptional audio experience. Whether for casual listening or serious sound enthusiasts, the MLX-100 delivers unmatched performance in any automotive setting.