AT&T MMD85 manual Troubleshooting

Page 8

Installation Guide

Negative Switched Dome lighting

To 3 pin

 

Red / black - Lamp on

 

connector

 

Black / red - Lamp common

 

 

Violet / brown - Lamp Auto

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To

constant

Factory Dome light circuit

To

constant

Factory Door ajar switch or Body

Troubleshooting:

SYMPTOM:

REMEDY:

No power at Video Monitor

-Verify +12 VDC on Red wire at 2 pin Power Harness behind video

 

monitor. Verify ground connection with continuity test from known

 

good ground to black wire at 2 pin Power Harness

Power but no video or

-Verify that the correct source is selected (i.e.: 1 or 2). Verify that the

sound

source is on and playing a known good media (such as a videotape).

 

Verify connections at both ends of the source component harness.

Picture, but no sound

-Verify that the headphones are turned on; check headphone batter-

 

ies

 

-Verify that power is available to the FM Modulator; make sure modu-

 

lator is tuned to the correct FM station

8

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Contents Guide Installation Guide Materials Included in this Package Tools RequiredVideo Monitor Installation Vehicle PreparationMounting the Video Unit MMD85 Connecting the Dome Lights Positive Switched Dome lightingTroubleshooting Copyright 2004 AEC 150 Marcus Blvd. Hauppauge, NY

MMD85 specifications

AT&T MMD85 is a versatile and robust device aimed primarily at enhancing mobile connectivity and ensuring seamless communication across various platforms. It stands out due to its combination of advanced features, cutting-edge technologies, and impressive characteristics that cater to both individual users and businesses alike.

One of the most notable features of the AT&T MMD85 is its ability to support multiple connectivity options. It operates on both 4G LTE and 5G networks, providing users with the flexibility to switch between different network types based on availability and signal strength. This dual support ensures that users stay connected in diverse environments, whether they are in urban centers or rural areas.

The device is equipped with advanced antenna technology that enhances signal reception. The integrated MIMO (Multiple Input Multiple Output) technology allows for multiple data streams to be transmitted simultaneously, significantly improving the overall data throughput. This becomes particularly beneficial for high-demand applications such as video conferencing, streaming, and online gaming, where lag and interruptions can lead to a frustrating experience.

Another key characteristic of the MMD85 is its user-friendly interface. The device features an intuitive display that makes managing settings and monitoring network performance easy for users of all technical levels. Additionally, it often comes with mobile applications that allow users to manage their connections, view data usage, and customize network preferences effectively.

The AT&T MMD85 also emphasizes security, incorporating advanced encryption protocols to safeguard user data during transmission. This is crucial for businesses that handle sensitive information and require secure communication channels to ensure privacy and data integrity.

Portability is yet another standout feature of the MMD85. Designed to be lightweight and compact, it can easily be transported in a backpack or briefcase, making it an ideal solution for on-the-go professionals. Its robust battery life ensures that users can enjoy extended connectivity without the worry of frequent recharging.

Overall, the AT&T MMD85 combines cutting-edge technology, user-friendly design, and a focus on security to deliver a device that meets the needs of today's mobile users. Whether for personal use or professional applications, the MMD85 stands out in the competitive landscape of mobile connectivity solutions.