TracVision M3DX Special Instructions Manual
TracVision M3DX Conversion System Instructions
To configure the system for circular signals, you will need to wire
the system differently from the wiring diagrams shown in the
Installation Guide and User’s Guide. Your conversion system comes
with a linear interface box, which gives you the flexibility to
simply add a destacker for circular use. Be sure to read these
special instructions for complete details.
IMPORTANT!
IMPORTANT! Special Instructions for the
TracVision M3DX Conversion System (01-0279-05)
You have purchased a special TracVision® M3DX conversion system
that can be configured for either circular or linear satellite signals.
These instructions explain how to configure the system for your
desired satellite(s). For example, if you travel from the U.S. to Mexico,
refer to these instructions to convert the system from a circular
configuration to a linear configuration.
Tools Required
• #2 Phillips-head screwdriver
• 7/16" open-end wrench
Table of Contents
Overview of Circular and Linear Configurations..........................................2
Configuring for Circular Signals, Out of the Box .........................................3
Converting from Circular to Linear..............................................................4
Converting from Linear to Circular............................................................10
Modified Wiring Diagrams for Circular Signals.........................................15
Wiring Diagram for Linear Signals ............................................................16
• Cutting pliers
• Flashlight
54-0390 Rev. B
1
TracVision M3DX Conversion System Instructions
Circular Configuration
(Out of the Box)
Linear Configuration
(After Conversion)
Circular LNB
Inside
Antenna
Linear Interface Box
Destacker
North American Receiver
DIRECTV, DISH, or ExpressVu
Sky Mexico Receiver
Antenna
Linear Interface Box
Linear LNB
Inside
Overview of Circular and Linear Configurations
The diagram below illustrates the differences between circular and
linear configurations using the conversion system.
Figure 1 Circular and Linear Configurations
If you want to receive signals from a North American satellite, such as
DIRECTV, DISH Network, or ExpressVu, a circular LNB (Low Noise
Block) must be installed in the antenna and a destacker must be
connected between the interface box and your receiver. The destacker
is necessary because, unlike a circular interface box, your conversion
system’s linear interface box does not convert stacked signals into
unstacked signals. North American receivers can decode only
unstacked signals.
If you want to receive signals from the Sky Mexico satellite, a linear
LNB must be installed in the antenna. No destacker is necessary
because your conversion system is equipped with a linear interface
box.
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TracVision M3DX Conversion System Instructions
SATELLITE IN
Configuring for Circular Signals, Out of the Box
(Valid for DIRECTV®, DISH Network®, and ExpressVu services)
Your TracVision M3DX antenna comes preconfigured for circular
signals using a linear interface box. All you need to do differently from
a standard circular system installation is connect the supplied
destacker between the linear interface box and your satellite TV
receiver, as shown in the wiring diagram below. The destacker
converts this stacked signal into an unstacked signal, which standard
North American receivers can decode.
Figure 2 Wiring Diagram for DIRECTV, DISH Network, or ExpressVu (Circular Receiver)
To Antenna
Linear Interface Box
Not Used
Destacker
(Supplied in Kit)
INPUT To TV
D575P
OUTPUT / To RECEIVER
Satellite TV Receiver (Primary)
TV ANT/CABLE IN
RL
SATELLITE IN
OUT TO TV
AUDIO VIDEO S-VIDEO PHONE JACK
NOTE: For details on wiring an optional Tri-Sat AutoSwitch for DIRECTV
Ku-band Tri-Sat service, refer to the instructions that came with the Tri-Sat
AutoSwitch kit.
3
TracVision M3DX Conversion System Instructions
Do not grasp the reflector at any time during this
procedure. A warped reflector can significantly reduce
antenna performance.
IMPORTANT!
Converting from Circular to Linear
(Valid for Sky Mexico service)
The TracVision system comes from the factory configured for circular
satellite signals. If you wish to receive Sky Mexico signals instead,
follow the steps below to convert the system to a linear configuration.
1. Turn off and unplug your satellite TV receiver, if it is
connected to the TracVision system.
2. Press the Power switch on the front of the TracVision
interface box to turn off the TracVision system. Make
sure the VOLTAGE light goes out.
Disconnect power from the antenna before you remove the
radome. The antenna has moving parts that can cause
injury.
CAUTION
3. Remove the three #10-32 Phillips screws securing the
radome to the antenna.
4. Carefully remove the radome and set it aside in a safe place.
Figure 3 Removing the Radome
4
TracVision M3DX Conversion System Instructions
Feed Tube
#8 Screw (1 of 8)
Reflector
RF Cable
LNB
Tie-wrap
5. Remove the four #8 Phillips screws securing the feed
tube to the reflector. Remove the feed tube and set it
aside in a safe place.
Figure 4 Feed Tube
6. Using a 7/16" wrench, carefully disconnect the RF cable
from the circular LNB on the back of the reflector.
Figure 5 Circular LNB
7. Cut the tie-wrap securing the RF cable to the LNB. Be
careful not to cut the RF cable while you are cutting
the tie-wrap.
5
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