User Guide

7
Installation - Control Board (lower board)
LocoMatic™
Control Board
speaker
Locomatic™
SwVol Board
Selector Switch & Volume Control Board.
Mount with two 2X56 screws supplied in a
convenient location. Be sure not to allow any
metal parts to contact the board, this will
damage the system. This board connects to the
Control Board with a 9 pin wire harness to allow
for a more convenient operator placement.
Rotating the "VOL" (volume) control clockwise will
increase the volume. A complete
counter-clockwise rotation will yield no sound!
Note: It is possible to destroy the standard 2" round
speaker when operating at full volume. This is
especially true with EMD type sound
systems.The sound system contains a 1 watt
audio amplifier and the standard speaker is
capable of sustaining 0.2 watts continuous. The
standard speaker is a high efficiency type.
SYNC input not used with
Diesel sound systems
when soldering wires to
rear of speaker, care must
be taken so that the wires
do not come in contact with
the speakers metal frame!
Notch Control
Lighting Outputs
Aux 1
Aux 2
Marker Rear
Marker Front
Headlight Rear
Headlight Front
Strobe (cab2)
Cab1
Lighting Outputs:
each output shown, as described in the main text, is capable of driving one
60milliamp load. This load may be a light bulb, as supplied, LED's (with limiting
resistor), or a series of light bulbs. Item #756 contains more lamps as provided.
More detailed optional connections exist on the following pages.
Connect the Red and Gray wires to supplied lamp. Insulate properly. As with
any connections, an improperly or uninsulated wire touching the frame or other
wire will damage the unit! Any damage as such is not covered under warranty.
When remoting several lamps and one common wire is desired, it is permissible
to connect all red wires to a heavier gauge red wire. The red wires are the +5
volt lamp supply. The gray wire is the switched lead except for the Cab1
connection, in this case the gray wire is the same as ground. If any switched
lamp output no longer operates, this is a sign that the output was either
overloaded or came in contact with another wire. A short between wires to the
lamp is also a overload. This would indicate a need for repair and has to be
returned. Again, this type of failure is not covered under warranty since it is due
to improper handling during installation.
LocoMatic™ Control Board
Although the bottom board is shown without the top power
board, we do not reccomend the seperation of the two. This is
shown for simpler identification of the connectors. When
placing the connector mates into their appropriate sockets care
must be excercised for proper alignment. Improper alignment
may cause a pin to become bent. It is suggested to use a
tweezers or small needle nose pliers to place the connectors
together. When seperating the connectors DO NOT pull on the
wires! Instead, slide a tweezers (or small flat screwdriver
between the top connectors lip and the board mate. Care must
be taken when handling these small connectors.
If you do elect to seperate the two boards be sure to do so in
an electrostatically controlled area and by all means make
sure they are not rotated when remated! If the top and bottom
boards are reconnected rotated and powered up you will
damage the system! In order to assist in alignment, both
pictures are shown in the same direction. The picture from the
top of the Power Board, on page 6, is oriented in the same
direction as the Control Board on this page. When correctly
assembled, L1 (shown on the Power Board) should be directly
above the Notch potentiometer of the Control Board.
.Item # 756
5 Volt, 60 milliamp
high intensity lamp.