Audiovox MMD7HRG User Manual

MMD7HRB  
MMD7HRT  
MMD7HRG  
Two Specific Vehicle Headrests  
With 7" LCD Monitors and Built-In  
DVD Player for Rear Seat Entertainment  
POWER SOURCE  
AUX  
SCREEN  
MODE  
PLAY  
STOP  
POWER SOURCE  
AUX  
SCREEN  
MODE  
Installation Guide  
128-8658  
2) Interface Harness  
(P/N 136-3977) - (1pc)  
2) Universal Remote Control  
(P/N 136-3785) – (1pc)  
3) AV Adapter Cable  
(P/N 112B3227) - (2pc)  
4) 2 Pin DC Power Cable  
(P/N 112-3667) - (1pc)  
5) Post Tube 12MM  
(P/N 100-2508) - (2pcs)  
6) Post Tube 14MM  
(P/N 100-2509) - (2pcs)  
7) Wired Headphone (P/N 136-3758) - (2pcs)  
OPTIONAL ACCESSORIES:  
8) Infrared Channel Wireless Headphones  
3
MMD7HRB, MMD7HRT, MMD7HRG SYSTEM OVERVIEW  
1) The SYSTEM is a versatile audio / video system with built-in DVD player (MMD7HRM only)  
which includes two monitors, that can accept an Audio / Video input and independent AUX  
input. A separate audio output is provided for connecting an optional FM Modulator to the  
vehicle's radio.  
2) The M1 Monitor (MMD7HRM) is comprised of a 7" TFT LCD monitor with built-in DVD player  
thatallows the user toplayback DVD, and theAUX source.The M1 monitor has  
a
built-in  
infrared audio transmitter(CHA)foruse with the optional two-channel wireless headphones  
(CHA).  
3) The SM Monitor (MMD7HRS) is comprised of a 7" TFT LCD monitor that allows the user to  
select display fromthe DVD source in M1 (AV1) orAUX source.The SMmonitor has a built-in  
infrared audio transmitter(CH B)foruse with the optional two channel wireless headphones  
(CH B).  
4) The monitors will show all of the functions with the comprehensive OSD.  
5) The optional two-channel wireless Headphone setshave anA-Bswitch thatallow the users to  
select the audio fromeither M1 (MMD7HRM, CHA)or SM(MMD7HRS, CH B).  
6) Using different IRcodes, the M1 Monitor will only respond tothe remote control unit when the  
Monitor Select (M1) button on remote control is pressed.The SMMonitor will only respond to  
the Remote Control unit when the Monitor Select (M2)button on remote control is pressed.  
7) The wired headphones allow the user to listen to audio from the system.  
8) The M1 (MMD7HRM) and SM (MMD7HRS) Monitor will accept an audio / video input through  
the 1/8” jack located on the frontofthe unit.The audio /video device could be a video game  
system, video camera, or other input device.  
MMD7HRS  
MMD7HRM  
MMD7HRS  
MMD7HRM  
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SCREEN  
MODE  
SCREEN  
MODE  
PLAY  
STOP  
SCREEN  
MODE  
SCREEN  
MODE  
PLAY  
STOP  
AUX IN  
HEADPHONE  
JACK  
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9) Pivot the screen until a comfortable viewing angle reached. The internal lock limits the  
screen to a maximum adjustment of 30 degrees from closed position, the headrest itself  
can be tilted forward to help achieve a comfortable viewing position.  
Inner Ring  
Internal Lock  
Closed Position  
10) Insert disc  
Disc Label  
Insert disc  
30 degrees  
MMD7HRM Monitor only.  
11) Eject disc  
Eject disc  
MMD7HRM Monitor only.  
5
Headrest Installation Description  
Choose the headrest cover color to best match your vehicle interior.  
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AUX  
SCREEN  
MODE  
SCREEN  
MODE  
PLAY  
STOP  
Monitor Unit  
HEADREST SEMI - ASSEMBLE WITH UNIT  
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AUX  
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AUX  
SCREEN  
MODE  
SCREEN  
MODE  
PLAY  
STOP  
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AUX  
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AUX  
SCREEN  
MODE  
SCREEN  
MODE  
PLAY  
STOP  
MMD7HRS  
(Satellite Monitor)  
MMD7HRM  
(Master Monitor)  
MMD7HRS Monitor  
(Satellite Monitor / SM)  
MMD7HRM Monitor  
(Master Monitor / M1)  
1
2
Use a screwdriver to loosen the screw  
from the inner-bracket of the headrest.  
Push the headrest support inwards or  
pull them outward adjust the distance.  
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Use a screwdriver to tighten the screw  
after headrest support have been  
adjusted.  
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AUX  
SCREEN  
MODE  
Adjust match your vehicle  
seatback dimension  
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VEHICLE PREPARATION:  
1) Read the manuals and get familiar with the electrical requirements and  
connections.  
2) Prepare the vehicle by removing any interior trim necessary to gain access to the  
vehicle's wiring as well as all areas where interconnecting wire harnesses will be  
located. (Refer to the Installation Procedure). The mounting method, and the  
location will vary from vehicle to vehicle, so this manual will only focus for the  
installation of the UNIT Master and Satellite Monitors in the supplied configuration.  
The best location forthe UNITcomponents is:  
a. Monitors: (NOTE: The MMD7HRM Monitor should be installed where the  
passenger usually sits behind the front passenger seat.  
b. Audio Interface Box: Under either seat where monitors are located.  
3) Locate an accessory power source (+12VDC present when the ignition key is in  
the accessory and run positions. 0VDC should be present when the ignition key  
is in the OFF position), and a good ground. Generally, these wires can be  
located at the ignition switch or fusebox.  
(NOTE: Ensure that the switched power is fused at the source. Failure to do so  
may result in vehicle wiring damage.)  
4) Run the wiring harnesses throughout the vehicle as necessary. (Refer to the  
Wiring Diagrams on page 10, as well as the wiring instructions for the individual  
components and accessory options being installed). Be sure, that all the wiring  
is protected from sharp edges and is routed in such a manner that it will not be  
pinched, when it is fully installed. Be sure to leave enough slack in the wiring at  
each component to allow sufficient working room. Be sure to leave enough  
slack in the monitor cables to allow the headrest to move up or down, and the  
seat to move backward and forward.  
5) Remove all the components from their packaging and then place them in the  
vehicle at their respective locations.  
6) Install the Headrests:  
a. Remove vehicle's original Headrests. Measure the distance between the  
posts and adjust the new Headrests to same dimension.  
b. Place the appropriate headrest support tube into the support tube hole. (If  
needed)  
c. Hold the UNIT Headrest above the seat and insert the two cables into the  
headrest support tube holes. Make sure that the headrest is in the correct  
position (Display facing the rear).  
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7) Connect all the components together (electrically) and verify proper operation of  
all the system functions.  
a. The headrest DIN cables and the Interface Harness DIN cables are color  
coded. Connect each headrest cable to the correct color cable on the Audio  
interface harness. Insome vehicles itwill be necessary touse the supplied DIN  
extension cables to reach from under one seat to the other seat. The DIN  
extension cables can be used for either the MMD7HRM or MMD7HRS  
monitors. The extension cables are labeled with color coded Green/Red and  
Blue/Yellow. When connecting the extension cables, ensure thatthe  
Green/Red extension cable is used with the Master monitor cable and the  
Blue/Yellow extension cable is used with the Satellite monitor cable.  
b. Connect the DC power jack.  
8) Verify proper operation ofthe system.  
9) Make sure that no wiring is pinched, or connected improperly during the final  
installation.  
9
MMD7HRPKG WIRING DIAGRAM  
MMD7HRS Monitor  
MMD7HRM Monitor  
Satellite Monitor  
Master Monitor  
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AUX  
SCREEN  
MODE  
PLAY  
STOP  
SCREEN  
MODE  
DIN Extension  
Cables  
(Optional)  
BLUE  
YELLOW GREEN  
RED  
Interface  
Harness  
DIN Extension Cables  
10  
www.mobile.audiovox.com  
128-8658  
© 2008 Audiovox Electronics Corp., Hauppauge, NY 11788  

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