control accessories
Vex-RC Transmitter & Receiver Kit
The Transmitter & Receiver Kit provides the foundation for a new robot. Use this kit along
with motion and structure components to create a remote-control robot. This transmitter &
receiver pair is part of the Vex-RC “blue” product line. For more information on compatibility,
refer to www.VexRobotics.com.
(1x) Vex-RC Receiver
(1x) Vex-RC Transmitter
Antenna
Warning: Changes or modifications to this
unit not expressly approved by the party
responsible for compliance could void the user
authority to operate the equipment.
NOTE: This equipment has been tested and
found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference in a residential installation. This
equipment generates, uses and can radiate
radio frequency energy and, if not installed
and used in accordance with the instructions,
may cause harmful interference to radio
communications.
For More Information, and additional Parts & Pieces refer to:
(1x) Vex-RC
Transmitter
(1x) Vex Battery Box
However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful interference to radio
or television reception, which can be determined
by turning the equipment off and on, the user is
encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment
and receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV
technician for help.
www.VexRobotics.com
Limited 90-day Warranty
This product is warranted
by Innovation First against
manufacturing defects in
material and workmanship
under normal use for ninety
(90) days from the date of
purchase from authorized
Innovation First dealers.
For complete warranty
details and exclusions,
check with your dealer.
Innovation First, Inc.
1519 IH 30 W
Greenville, TX 75402
08/07
accessories
Vex-RC Transmitter & Receiver Kit • 1
control accessories
Vex-RC Transmitter & Receiver Kit, continued
Before the Transmitter (TX) and Receiver (RX) pair can be used, some prep work is required.
Install the antenna into the top of the Transmitter, and screw it into place by twisting it with
your hand.
Using a Phillips-Head Screwdriver,
remove the battery door screw
from the bottom of the Transmitter.
Remove the battery door and
insert a 9V battery (not included).
Make sure you install the battery
with the polarity in the correct
orientation. Reinstall the battery
door and screw.
Remove the cover from the Battery Box, and install (6x) AA-Batteries (not included). Make
sure you install the batteries with the polarity in the correct orientation, follow the guide in the
bottom of the Battery Box. Reinstall the cover.
Connect the Battery Box to the Vex-RC Receiver by inserting the power connector into the
socket, as shown. Note: The connector will only insert one-way, and should not connect
incorrectly.
For More Information, and additional Parts & Pieces refer to:
Vex-RC Transmitter & Receiver Kit • 2
accessories
www.VexRobotics.com
control accessories
Vex-RC Transmitter & Receiver Kit, continued
The Transmitter has six channels on which it can send commands to the Receiver. These
channels each correspond to a matching motor port on the Receiver. Channel 1 on the
Transmitter, controls the motor plugged into Motor Port #1 on the Receiver. These motor
ports are clearly labeled “1-6” on the Receiver. You can change the “control scheme” for your
robot, by choosing where you plug in your motors.
1 2
4
3
There are also (2x) “auxiliary” ports on the Receiver; these
ports are labeled “AUX”. These ports are not controlled by the
Transmitter, and will provide the same voltage as the battery
whenever the Receiver is switched on. These ports are intended
to be used for passive accessories that need a power supply; the
Vex Color Camera (276-2211), and the Vex Flashlight (276-
2210) both utilize these AUX ports. If you plug a motor into an
AUX port, it will run continuously, whenever the robot is turned
on.
6
5
The Vex-RC system uses the VB-1 Motor Module (not included
in this kit), which includes a 2-prong power cable & connector.
These 2-prong cables can be used to flip motor polarity. By
plugging the cable in “upside down” you can reverse the
direction of the motor. Say you want Channel 1 to control your
arm motor, but when you move the joystick up, the arm goes
down. Simply reverse the motor plug and now up on the joystick
will move the arm up. If a motor runs “backwards” from the
desired direction, reverse the motor plug. Note, “AUX” ports
cannot be reversed.
For More Information, and additional Parts & Pieces refer to:
www.VexRobotics.com
Vex-RC Transmitter & Receiver Kit • 3
Rotate Connector
to Reverse Motor
Polarity
accessories
control accessories
Vex-RC Transmitter & Receiver Kit, continued
Transmitter & Receiver Troubleshooting Guide:
Problem:
Motor does not operate, or works intermittently.
Possible Solutions:
Check that the batteries are properly installed.•
Check that connections to the Receiver are securely plugged in.•
Check that the power switches on both the Receiver and Transmitter are in the “ON” •
position.
Let the unit sit without operating for a few minutes, and see if problem persists.•
Motors have internal protection which will shut down the motor to protect it from –
overload.
Problem:
One motor is running opposite of the desired direction
Solution:
Reverse the direction of the motor plug that connects to the Receiver. (See previous page.)•
Problem:
System has limited signal range (less than 150 feet).
Possible Solutions:
Check that the Transmitter Antenna is completely extended and secured tightly into the •
Transmitter.
Check that batteries in Transmitter and Receiver are sufficiently charged.•
Low batteries can result in intermittent/reduced performance! –
Check for objects (walls, doors, appliances, heating ducts, etc) that could block radio •
transmissions between the Transmitter and the Receiver.
Metal objects will cause the most signal block, but other objects will degrade the signal –
as well.
For More Information, and additional Parts & Pieces refer to:
Vex-RC Transmitter & Receiver Kit • 4
accessories
www.VexRobotics.com
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