JR Racing XS3PRO User manual

PRO
PRO
3-Channel, 10-Model Memory
Synthesized FM Computer
Racing System

2
3
Introduction
Thank you for purchasing the JR Racing XS3 PRO
Synthesized FM 3-Channel Radio system. You have likely
chosen the XS3 PRO radio system for its synthesized PLL
channel select capabilities found on both the transmitter
and the receiver, eliminating the need for crystals and
providing you with access to virtually all available channels
on 27MHz or 75MHz.
This system has been designed to provide RC racers with
a high quality, user-friendly radio system that can be relied
upon year after year, race after race. The XS3 PRO’s grip
dial accessible auxiliary third channel is ideal for use as a
mixture channel in gas boats or as a transmission shifter
for vehicles such as the Traxxas® T-Maxx. It is important
that you carefully read this manual before attempting to
operate your XS3 PRO system.
For your convenience, blank data sheets have been included
in the back of this manual. Once you have input all the
necessary data for a particular model into your transmitter,
we strongly recommend that you immediately write that
information down on the data sheet provided. This will
insure that in the rare case of a memory failure, you will
not lose the models’ setup data.
For those who would like to get out to the track quickly with
just the basic radio setup, please refer to the Quick Start
section that follows.
Table of Contents
Table of Contents .......................................................2
Introduction ...............................................................2
XS3 PRO Quick Start Setup .......................................3
Synthesized TX Channel Select .............................3
Synthesized RX Channel Select.............................3
Servo Reversing ....................................................3
End-Point (Travel) Adjustment...............................4
Direct Trim Access .....................................................5
Servo Trim Adjustment ..........................................5
System Features.........................................................6
System Specifications................................................6
Control Identification and Location............................7
RC Safety Precautions................................................8
Charging Jack............................................................8
Steering Tension Adjustment .....................................8
Back Trigger Adjustment ............................................9
Foam Cushion Grip....................................................9
Receiver/Servo Connections and Installation...........10
Operating Your Model..............................................11
Servo Layout............................................................12
Key Input and Display..............................................12
Display Screens .......................................................13
System Mode...........................................................14
Model Select .......................................................15
Synthesized Channel Select.................................15
Model Name Entry...............................................16
Frame Rate Select................................................17
Auxiliary Channel 3 Function Select ...................18
Grip Button C Function Select.............................19
Data Reset ...........................................................20
Copy Model Data.................................................20
Function Mode.........................................................21
Steering Master Rate ...........................................22
Throttle Deadband ...............................................23
Exponential Function...........................................24
End-Point Adjustment .........................................25
Programmable Mixing.........................................27
Lap-Timer............................................................28
Sub-Trim .............................................................29
Servo Reversing ..................................................30
Accessing the Direct Trim Mode ..............................31
Steering Trim.......................................................32
Throttle Trim........................................................32
Grip Lever B: Steering Dual-Rate
Trim Adjustment..............................................33
Grip Lever A: Brake End-Point
Adjustment/Auxiliary Channel 3 Access .........34
XS3 PRO Data Sheet................................................35
Frequency Chart.......................................................38
Warranty and Service Information............................39

2
3
XS3 PRO Quick Start Setup
Synthesized RX Channel Select
1. Determine the frequency band and channels available
marked next to the rotary dial matches the transmitter.
2. Set the channel on the RS310 receiver to match the
XS3 PRO transmitter by adjusting the ten position
rotary switches using the supplied tuning screwdriver
until they point to the corresponding channel
numbers.
• To set a 75MHz receiver to channel 78, rotate the
first rotary switch to the “7” position and the second
rotary switch to the “8” position.
• 27Mhz receivers will only have one rotary switch for
accessing the channels 1–6. Use this single switch
to select the desired channel.
Servo Reversing
1. With the transmitter power switch on, press the
Scroll key to enter the Function mode.
2. Press the Scroll key until “REV.NORM” appears on
the screen. The “ST” indicates the steering servo
reversing screen.
3. Press the Increase or Decrease key to move the
cursor to the desired servo direction (REV.NORM).
4. Press the Channel key once to access the throttle
servo reversing screen.
5. To select the direction of the throttle servo, repeat
Step 3 above.
6. Repeat Steps 2 and 3 to adjust Auxiliary Channel 3
if needed.
SCROLL
INCREASE
CLEAR
DECREASE
Included in this manual are in-depth instructions detailing
all the steps and procedures needed to correctly program
each of the XS3 PRO’s features. Quick Start covers the
basic programming information necessary to get you to
the track fast. Later, when you want to learn more about the
specific features of the XS3 PRO, refer to the appropriate
page(s) in this manual for more detailed programming
information.
Note: If the Auxiliary Channel 3 is required, refer
to the Auxiliary Channel 3 System Mode (page 18)
for instructions.
Synthesized TX Channel Select
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn the transmitter power switch on to enter
System mode.
3. Press the Scroll key until “CH” appears on the screen.
4. Press the Increase or Decrease key to select the
desired transmitting channel number (1–6) on 27MHz
or (61–90) on 75MHz.
Note: Your XS3 PRO radio system will only operate
either on 27MHz or 75MHz, depending on the model
purchased, not both. While in System mode, there
is no RF output being generated by the XS3 PRO,
enabling you to safely make the appropriate channel
selection. You must turn the transmitter off and then
back on to enable RF output.
Channel Number
ch
65
Channel Select
Fuction
st
—
REV•NORM
Channel
ST = Steering
TH = Throttle
AUX =
Auxiliary
Channel 3
(optional)
Servo Direction
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
INCREASE
CLEAR
DECREASE
SCROLL
ENTER
CHANNEL
SCROLL
SCROLL
CHANNEL

4
5
Throttle Adjustment
4. Press the Channel key once. “TH” will appear on the
screen.
5. Pull the trigger forward or push the trigger for
brake adjustment.
6. Press the Increase or Decrease keys to select the
desired travel value.
Auxiliary Channel 3 Adjustment
If a third channel is not required, proceed to Step 9.
7. Press the Channel key once. “AUX” will appear
on the screen.
8. Press the Increase or Decrease keys to select the
desired travel value.
9. Press the Scroll and Channel keys at the same time
to exit the function mode.
End-Point (Travel) Adjustment
1. From the Servo Reverse function, press the Scroll key
four times to access the End-Point (Travel) Adjustment
function (the EPA screen with “ST” will appear).
Steering Adjustment
2. Rotate the steering wheel in the desired direction (left
or right) to be adjusted.
3. Press the Increase or Decrease keys to select the
desired travel value.
XS3 PRO Quick Start Continued
st
100
Adjustment Position
ST = Steering
TH = Throttle
AUX = Auxiliary Channel 3
(optional)
Current Value
L/F = Left/Forward
R/B = Right/Brake
R/B
E P A
SCROLL
CHANNEL
INCREASE
CLEAR
DECREASE
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
INCREASE
CLEAR
DECREASE
CHANNEL

4
5
Servo Trim Adjustment
Steering
1. With the transmitter power switch on, move the
digital steering trim lever in the desired position to be
adjusted. The steering trim value screen will appear
automatically.
Throttle
2. With the transmitter power switch on, move the
digital throttle trim lever in the desired position to be
adjusted. The throttle trim value screen will appear
automatically.
Auxiliary Channel 3 (If Active)
3. With the transmitter power switch on, move the digital
grip lever A in the desired position to be adjusted.
The Auxiliary Channel 3 value screen will appear
automatically.
Direct Trim Access
stc
0
TRIM Steering Trim
Function
Current Value
thc
0
TRIM Throttle Trim
Function
Current Value
brk
50
Brake Function
Current Value
ST.
Throttle Trim
Steering Trim
Decrease Increase
Grip Lever A
Brake Trim
Grip Lever B
Steering
Dual-Rate Trim
R/B
E P A

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7
System Features System Specifications
Transmitter
• 3 channels
• Synthesized PLL Channel Selection via software
• FM modulation
• Easy-to-read LCD graphics display
• 10-model memory
• 3-character model name entry
• Electronic digital trim levers for throttle and steering
• Two assignable electronic grip levers
• Auxiliary third channel accessible through
Grip Lever A
• Direct display trim functions
• Servo reversing
• Sub-trim
• Steering dual-rate
• Exponential (steering and throttle)
• Steering end-point adjustment
(two points: left and right)
• Brake/throttle end-point adjustment
• Throttle deadband adjustment
• 50-lap timer
• Low-battery alarm
• Charge jack receptacle (rechargeable batteries not
included; order JRPB958)
RS310 Receiver
• 3 channels
• Synthesized PLL Channel Selection
• FM modulation
• 27MHz/75MHz available
• Patented ABC&W interference technology
Z590M Servo
• Metal gears for durability
• Great high-torque car/buggy steering servo
• Indirect drive feedback potentiometer for additional
vibration protection
• Surface Mount Technology (SMT)
Z270 Servo
• Low current drain
• Indirect drive feedback potentiometer for additional
vibration protection
• Surface Mount Technology (SMT)
• Durable nylon gear train
Components
Transmitter XS3 PRO
Receiver RS310
Servos Z590M x 1
Z270 x 1
Accessories Switch harness with battery
case, servo accessories
(for each servo), instruction
manual
XS3 PRO Transmitter
Model number XS3 PRO
Encoder 3-channel computer system
RF output 27MHz/75MHz synthesized
Modulation FM
Output power 130 mW
Current Drain 180 mA
Power source 1.5V x 8 dry cell
(1.2V x 8 Ni-Cd optional)
Output pulse 1000–2000 (1500 neutral)
RS310 Synthesized Receiver
Model number RS310
Type 3-channel, FM, ABC&W
circuitry
Frequency 27MHz/75MHz
Sensitivity 5 μV/m
Selectivity 8 KHz/50 dB
Weight .63 ounces
Size (LxWxH) 1.49” x 1.14” x 0.63”
Receiver Antenna 20”
Power supply 4.8–6.0V DC
Channel selection Rotary dial
Z270 Servo
Torque 49 ounce inch (@6.0V)
Speed .19 sec/60° (@6.0V)
Weight 1.50 ounces
Size (WxLxH) 0.73” x 1.51” x 1.37”
Motor 3-pole ferrite
Gears Nylon
Z590M Servo
Torque 85 ounce inch (@6.0V)
Speed .15 sec/60° (@6.0V)
Weight 1.6 ounces
Size (WxLxH) 0.73” x 1.55” x 1.46”
Motor 3-pole ferrite
Gears Metal
Optional (not included)
JRPB958 Tx NiCD Battery (700Mah)
JRPC222 Tx/Rx Charger

6
7
Control Identification and Location
*To remove battery cover, press down on the arrow and push the cover
in the direction of the arrow. Remove the battery case and install 8 “AA”
batteries in the direction shown as molded into the battery case. If trans-
mitter voltage fails to register, check for correct battery installation and voltage.
Dot Matrix
Multi-Data
LCD Display
Three-Character
Name Input
Digital Throttle
Trim Lever
Digital Grip Lever A
Digital Grip Lever B
Grip Button C
Charge Jack
Power Switch
Digital Steering Trim
Lever
Throttle Trigger
Battery Cover *
(8 “AA” batteries required)
Steering Wheel
Adjustable
Steering Tension
Digital Voltage
Reading
= Clear Function
Decrease Button
Increase Button
Scroll Button
= Enter Function
Channel Button
Antenna
Adjustable
Back Trigger
Power LED
Foam Cushion Grip

8
9
Located on the left-hand side of the transmitter is the
charging jack that accepts only JR wall chargers. Please do
not attempt to use any other brand of wall charger, as it may
be reverse polarity and can cause damage to your system.
Only use the JR wall charger (JRPC222) when the XS3 PRO
is equipped with rechargeable Ni-Cd batteries (JRPB958,
available separately).
Charging Jack
RC Safety Precautions
Steering tension is adjustable via the recessed screw
located beneath the steering wheel (see page 7 for exact
location). Turning the screw clockwise increases the
steering tension.
5. Before operating your model, make sure your
frequency is clear. If someone else is operating
on the same frequency, both models will go out of
control, possibly causing damage to the models,
as well as others.
6. If at any time while operating your RC model you
sense abnormal model functioning, end your operation
immediately. Do not operate your model again until
you are certain the problem has been corrected.
Caution: Control of your model is impossible without
sufficient voltage for the transmitter and receiver.
A weak transmitter battery will decrease your
range of operation, and a weak receiver battery will
slow servo movement and decrease your range of
operation. Check your receiver pack voltage often
to avoid losing control of your model. When using
a model that operates both the electric motor and
the receiver from the same battery, you should
discontinue use when the top speed sharply decreases
or you’ll quickly lose control of your model. For safe
and reliable performance of your RC model, please
carefully read and follow the guidelines below.
1. Radio control models are not toys. They are capable
of inflicting serious injury to people and property. Use
caution at all times when operating your model.
2. You are responsible for the safe operation of your RC
model. You must properly install, test and operate
your model with a clear sense of that responsibility. Do
not take risks that might endanger yourself or others.
3. Running an RC car in the streets is very dangerous
to both drivers and models. Avoid running your
model in areas occupied by full-size automobiles. To
locate areas where you can safely operate your model,
contact your local hobby shop for RC tracks or clubs
in your area.
4.When running an RC boat, keep it away from any
swimmers, full-size boats and wildlife. Also, watch
carefully for fishing lines that may get tangled
in the propeller.
Steering Tension Adjustment
Charger Pigtail For Transmitter
Black To Positive
Red To Negative
JR TRANSMITTER CHARGE JACK POLARITY:

8
9
Back trigger adjustment is possible on the XS3 PRO by
loosening the Phillips screw located on the back of the
trigger. After you have placed the back trigger in your
desired position, be sure to tighten the screw before using
the transmitter.
Back Trigger Adjustment
For added comfort, your XS3 PRO is supplied with a foam
cushion grip. It is secured with a hook and loop type
fastener and may be removed as needed.
Foam Cushion Grip
Back Trigger
Adjustment
Foam Cushion
Grip

10
11
Receiver/Servo Connections and Installation
Your XS3 PRO is supplied with JR’s RS310 receiver. The
RS310 receiver is NOT equipped with battery eliminating
circuitry (BEC) as found in some model JR receivers
such as the RS300, R135, and R133 receivers. DO NOT
use more than 6.0V (volts) from a 4-cell dry-cell battery
pack or 5-cells from a NiCD/NiMH receiver pack to power
the receiver. Supplying a voltage higher than 6.0V may
burn-up or destroy your receiver and/or servo. Use only a
4.8V~6.0V (4- or 5-cell) battery pack or electronic speed
control designed to supply the proper operating voltage
to the receiver. If you will be using a digital servo, or want
high performance, it is important that you use a 5-cell NiCd
or NiMH receiver battery pack when an electronic speed
control does not power the radio system.
Attention: Make sure the male and female connectors
have the correct polarity (+/-) before connecting. The
servo lead and receiver case are molded so that the
lead can only be inserted correctly in one direction.
Be sure to orient the servo plug correctly for proper
insertion.
You may use a separate receiver battery to power the
receiver (such as for some electric boats or in gas-powered
vehicles). A Ni-Cd pack plugged into the battery socket on
your receiver will operate your receiver. You can also use
alkaline batteries with the included battery box.
If you use a mechanical speed controller, please make sure
to use the supplied battery box. See Figure A below for
a typical setup. Most electronic speed controllers are set
up for BEC operation and plug directly into your receiver
(Figure B). See Figure B for a typical setup and check your
speed controller‘s manual for correct installation.

Figure A – Connections to receiver with mechanical speed controller. Battery and speed controller are not
included in the radio set.
Mechanical
Speed Control
Switch
RS310 Receiver
Z270/Z590M Servos
To Motor
Battery Box
7.2V–8.4V Battery
Third Channel
(Optional)
Figure B – Connections to receiver with electronic speed controller. Battery and speed controller are not
included in the radio set.
7.2–8.4V Battery
RS310 Receiver
Z270/Z590M Servo
ESC
To Motor
Third Channel
(Optional)


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11
Operating Your Model
It’s important to learn the proper sequence for switching
on/off your radio system.
Before Operation
Switch on the transmitter, then the receiver.
After Operation
Switch off the receiver, then the transmitter. This ensures
that you will always have a signal to the receiver and that
your RC model will not operate out of control when you
turn off the transmitter.
Receiver/Servo Connections and Installation
Your RS310 receiver should be installed as far away
as possible from the vehicle’s electric motor, speed
control, battery, and related wires to minimize picking
up any electrical noise. Keep the antenna wire away from
graphite material and do not run it through any graphite
material. The receiver should be mounted so it is isolated
and floats on a cushioning foam material to avoid damage
from shock or vibration. The placement of the RS310
receiver case should not come in direct contact with any
hard or rigid surface.
1. Mount the RS310 receiver with double-sided tape.
(Use extra layers of double-sided tape, particularly if it
is thin, until you build up a cushioning pillow layer.)
Do not use glue to mount the receiver!
2. Run the antenna wire up through a plastic antenna
tube and let the excess wire hang out the top of the
tube.
3. Do not cut, coil, or bundle excess antenna wire—
range will be reduced!

12
13
Key Input and Display
To enter the Function mode, press the Scroll key
while the transmitter is on.
Press the Increase and Decrease keys
simultaneously to clear the screen or return
to factory preset.
To enter the System mode, press the Scroll
and Channel keys simultaneously and hold
while turning on the transmitter.
KEY
SCROLL
CHANNEL
INCREASE
DECREASE
Moves up through the available functions
Selects the desired channel
Increases the value of the selected function
Decreases the value of the selected function
USE
Servo Layout
Note: Rubber grommets and eyelets must
be used in fuel-powered vehicles.
Servo Mounting Flange
Rubber Grommets
Top View
Rubber Grommets
Servo Case
Servo Lead with Connector
Servo Output Shaft
Servo Mounting Flange
Servo Arm/Horn
Servo Arm Retaining Screw
Servo Eyelet
Z270/Z590M Servo
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE

12
13
Normal Display
When the power switch is turned on, the LCD screen will
display the channel selected for signal transmission and
transmitter battery pack voltage as shown below. This
screen is referred to as the Normal Display. Pressing the
Channel key will switch the display between the trans-
mitting channel and model name.
Note: If any of the electronic trim buttons are moved
while in this screen, the screen will auto-
matically change to display the trim in use. This is
called the Direct Trim mode. For more information on
the feature, please see page 31 of this manual.
Display Screens
Up-Timer
Note: If the Lap-Timer is enabled, an up-timer display
may alternatively be selected over the normal display
screen by pressing the Channel key. Pressing the
Channel key again will scroll back through the channel
select and model name screens. (For more information
on this feature, please see page 28.)
Low Battery/Lithium Battery Backup
When the voltage of the 8 “AA” batteries drops below 9.0V,
the XS3 PRO’s display screen will alternate between the
Normal and Low-Battery screen (BAT), and a continuous
beeping will occur, indicating that the batteries need to
be replaced before further use. The Low-Battery screen is
active during any operating modes.
Memory Backup
If the Memory Backup screen appears, this indicates the
possibility of a ROM problem or the lithium battery is dead.
If you switch the power off and on again, but the transmitter
is in the default mode with all data lost, it is strongly
suggested that the XS3 PRO transmitter be returned to
the Horizon Service Center for servicing (see Warranty
Information, page 39).
Lithium Battery
Your XS3 PRO radio system is equipped with a five-year
lithium battery backup system. This system is designed to
protect and retain all radio programming in the event that
the transmitter batteries drop below the required 9.0 volts,
or the transmitter battery case is removed during battery
changes. If after five years it becomes necessary to replace
the lithium battery, return your system to the Horizon
Service Center (see address, page 39) for repair.
0
10.2V
LAP bak
ER
bat
8.9V
md!
10.2V
c6!
10.2V

14
15
System Mode
Accessing System Mode
To enter the System mode, press the Scroll and Channel
keys simultaneously while turning on the transmitter power
switch. By pressing the Scroll key, you can now choose
Model Select, Channel Select, Model Name Input, Frame
Rate, Auxiliary Channel 3 function, Grip button C function,
Data Reset or the Model Copy function. Information for
each function is located on the page number listed next to
the function name on the flow chart.
To exit the System mode, press the Scroll and Channel
keys simultaneously or simply turn off the transmitter.
Note: If you turn the transmitter off and immediately
enter System mode again, you will be returned to the
last System mode function used instead of the Model
Select function. While in System mode, there is no
RF output generated by the transmitter. Adjustments
can be performed with reduced battery power
consumption. If you exit System mode by pressing
the Scroll and Channel key at the same time, RF
output will not be enabled until you first turn off the
transmitter.
aux
0
Auxiliary Channel 3
Function
(page 18)
frm
F
Frame Rate
(page 17)
Model Name Entry
(page 16) md !
1
mdl
1
Model Select
(page 15)
clr
1
Data Reset
(page 20)
gbc
0
Grip Button C
Function
(page 19)
Copy Model Data
(page 20)
cpy
2
ch
61
Channel Select
Function
(page 15)

14
15
Model Select
The XS3 PRO has memory for ten models. This feature
allows for ten different models to be operated with the
same transmitter (additional receivers and servos must be
purchased separately) or one model with ten different race
setups.
Accessing the Model Select Function
1. Press the Scroll and Channel keys at the same
time and hold.
2. Turn the transmitter power switch on to enter
System mode.
3. If “MDL” does not appear on the screen, press the
Scroll key until “MDL” appears.
4. Press the Increase or Decrease keys to select the
desired model number (1, 2, 3, ... or 10).
5. Press the Scroll key to access the Channel
Select function.
6. To exit System mode, either turn the transmitter power
switch off or press the Scroll and Channel keys at
the same time.
System Mode
Synthesized Channel Select
One of the XS3 PRO transmitter’s most valued features is
its ability to synthesize the frequency needed for operation
on a single select channel without the need for replacing
a crystal. Depending on the operating frequency band of
your transmitter, the XS3 PRO will either have 6 channels
(1–6) on the 27MHz band or 30 channels (61–90) on
the 75MHz band you can select from. (Please refer to the
Frequency Chart on page 38 if you need to reference the
exact frequency a particular channel is transmitting on.)
When used in conjunction with the RS310 synthesized
FM receiver, you will have access to virtually all available
channels without needing to purchase any crystal sets!
Note: Your XS3 PRO radio system will only operate
either on 27MHz or 75MHz, not both. While in System
mode, there is no RF output being generated by the
XS3 PRO enabling you to safely make the appropriate
channel selection. You must turn the transmitter off
and then back on to enable RF output.
mdl
1
Model Select
Fuction
Current Model
Number
ch
65
Channel Select Fuction
Channel Number
Press and hold the Scroll and Channel keys
at the same time while turning transmitter
power switch on.
Press the Increase or Decrease keys to select the
desired model to be used (1, 2, 3,... or 10).
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE

16
17
Synthesized Channel Select cont.
Accessing the TX Channel Select Function
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn the transmitter power switch on to enter System
mode.
3. Press the Scroll key until “CH” appears on the screen.
4. Press the Increase or Decrease key to select the
desired channel number 1–6 (27MHz) or 61–90
(75MHz).
5. Press the Scroll key to access the Model Name
Entry function.
6. To exit System mode, either turn the transmitter
power switch off or press the Scroll and Channel
keys at the same time.
Accessing the RS310 RX Channel Select
Determine the frequency band and channels available
marked next to the rotary dial matches the transmitter.
Set the channel on the RS310 receiver to match the XS3
PRO transmitter by adjusting the ten position rotary
switches using the tuning screwdriver supplied until they
point to the corresponding channel numbers.
• To set a 75MHz receiver to channel 78, rotate the
first rotary switch to the “7” position and the second
rotary switch to the “8” position.
• 27MHz receivers will only have one rotary switch for
accessing channels 1–6. Use this single switch to
select the desired channel.
System Mode
Model Name Entry
The XS3 PRO allows a three-character name to be input for
each of the ten models available. The current model with
name will then be displayed in the Normal display screen.
This feature is useful to help identify different models,
setups, etc.
Accessing the Model Name Entry Function
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn on the transmitter power switch to enter the
System mode.
3. Press the Scroll key until “MD1” appears on the
screen with the first character flashing.
4. Press the Increase or Decrease keys to select the
correct letter/number for the first character (flashing).
To clear the character, pressing the Increase and
Decrease keys at the same time.
5. To change the remaining two characters, press the
Channel key until the desired character to be changed
is flashing.
6. Press the Scroll key to access the Frame Rate
function.
7. To exit the System mode, either turn the transmitter
power switch off or press the Scroll and Channel
keys at the same time.
Press and hold the Scroll and Channel keys at the
same time while turning transmitter power switch
on. Next, press the Scroll key until the flashing
“M” appears. Press the Channel key to select the
character to be changed.
Press the Increase or Decrease keys to select the
correct letter/number to be used.
Press and hold the Scroll and Channel keys at the
same time while turning transmitter power switch
on. Next, press the Scroll key until “CH” appears.
Press the Increase or Decrease key to select the
desired channel for transmission. md !
1
Character to
be Adjusted
Current Model
Number
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE

16
17
Accessing the Frame Rate Function
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn on the transmitter power switch to enter the
System mode.
3. Press the Scroll key until “FRM” appears on
the screen.
4. Press the Increase or Decrease key to select the
desired frame rate (N or F).
5. Press the Scroll key to access the Auxiliary
Channel 3 function.
6. To exit the System mode, either turn the transmitter
power switch off or press the Scroll and Channel
keys at the same time.
System Mode
Frame Rate Select
The Frame Rate function allows you to select one of two
transmitter frame rates available: Normal “N” - the default
or Fast “F”. The Normal Frame Rate should be selected if
you are using only non-digital servos. The Fast Frame Rate
may be selected if you are using no analog and at least one
digital servo.
Note: The Frame Rate function offers quicker
response times in the “F” or Fast mode. Some models
of analog servos are not compatible in the “F” Fast
mode and require the radio to be operated in the “N”
Normal mode.
Current
Frame Rate
frm
F
Press and hold the Scroll and Channel keys
at the same time while turning the transmitter
power switch on. Next, press the Scroll key until
“FRM” appears.
Press the Increase or Decrease key to select the
desired frame rate.
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE

18
19
System Mode
Auxiliary Channel 3 Function Select
The Auxiliary Channel 3 function of the XS3 PRO allows
you to select from two different types of Channel 3 servo
travel movements or to inhibit the Auxiliary Channel 3
function. Use the information below to select the correct
Auxiliary Channel 3 function type for your particular
installation. It is suggested the 0 function be selected for
most applications.
(Factory preset)
0 = The 0 or Inhibit function allows the Brake End-Point
Adjustment function to be used. This function is designed
to be used with most types of electric and gas-powered
RC cars. This feature is extremely popular, as it allows the
amount of panic braking accessible through the throttle
trigger’s braking position to be adjusted during operations
for maximum effectiveness. When activated, the braking
values will be visible via the Direct Trim function, page 31.
LN = The LN or linear servo travel function is designed
to be used when an engine fuel mixture servo is required.
This function is most commonly used with gas-powered RC
racing boats and is accessible through Grip Dial A. In this
function, the maximum travel of the servo is determined
by the End-Point Adjustment function. The servo neutral
position can be altered proportionally via the Grip Dial A
for mixture adjustment. When activated, fuel mixture trim
values are visible for the Direct Trim function, page 34.
2P = The 2P or 2 position Servo Travel function is
designed to be used as a transmission gear shift channel.
This feature is designed for use with vehicles such as the
Traxxas® T-Maxx. This function is accessible through Grip
Button C or Grip Dial A if Grip Button C is occupied by
another function. In this function, the servo’s travel values
are determined by the End-Point Adjustment function.
Accessing the Auxiliary Channel 3 Function
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn on the transmitter power switch to enter
System mode.
3. Press the Scroll key until “AUX” appears on
the screen.
4. Press the Increase or Decrease key to select the
correct Auxiliary Channel 3 function type to be used.
5. Press the Scroll key to access the Grip Button C
Select function.
6. To exit the System mode, either turn the transmitter
power switch off or press the Scroll and Channel
keys at the same time.
aux
0
Auxiliary Channel 3
Function
Channel 3 is Inhibited
(Grip Dial A braking
function is now
activated)
aux
LN
Auxiliary Channel 3
Function
Linear Movement
(fuel mixture servo)
aux
2P
Auxiliary Channel
3 Function
Non-linear
Two-Position
Movement
(Traxxas shiftable
transmission use)
Press and hold the Scroll and Channel keys at the
same time to enter the System mode. Next Press the
Scroll key until “AUX” appears.
Press the Increase or Decrease key to select
the desired Auxiliary channel 3 function type
to be used.
0 = Inhibited (Grip Dial A braking is active)
LN = Linear servo movement
2P = 2-position servo movement
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE

18
19
System Mode
Grip Button C Function Select
The Grip Button C function of the XS3 PRO allows you
to select from 3 different functions available. Use the
information below to select the correct Grip Button C
assignment for your particular installation.
“0”: Off. (Default) If “AUX” is “2P”, then “2P “replaces “0”
in this screen.
“Eb”: ESB (Emergency Steering Button.) To cancel the
“STG” regulation for panic steering.
“LA”:Lap timer.
Note: If “LA” or “Eb” is selected and “2P” is assigned
to the Auxiliary Channel 3 function, the Auxiliary
Channel 3 function is moved to Grip Dial A.
(Factory preset)
0 = The 0, or off function, is the default setting and does
not assign a function to Grip Button C. If the Auxiliary
Channel 3 function is set to “2P” or 2-position, “2P” will
appear in this screen in place of “0” and Grip Button C will
function as the gear select button.
EB = The Eb or Emergency Steering Button function is
designed to override the value of Grip Dial B and provide
100% steering rate. This feature is useful if you have
reduced the steering rate to make your vehicle easier to
drive but need full steering in an emergency situation such
as a collision.
LA = The LA or Lap-Timer function is designed to be used
when you want to enable the recording of individual lap
time. The Lap-Timer function is described on page 28.
Accessing the Grip Button C Function
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn on the transmitter power switch to enter
System mode.
3. Press the Scroll key until “GBC” appears on
the screen.
4. Press the Increase or Decrease key to select the
correct Grip Button C function type to be used.
5. Press the Scroll key to access the Data Reset function.
6. To exit the System mode, either turn the transmitter
power switch off or press the Scroll and Channel
keys at the same time.
gbc
LA
Grip Button
Function
Lap-Timer
gbc
0
Grip Button C
Function
Grip Button C is
Inhibited
EB
gbcGrip Button C
Function
Emergency
Steering Button
is Activated
gbc
LA
Grip Button C
Function
Lap-Timer Button is
Activated
Press the Increase or Decrease key to select the
desired Grip Button C function type to be used.
Press and hold the Scroll and Channel keys at the
same time to enter the System Mode. Next Press the
Scroll key until “GBC” appears.
0 = Inhibited
Eb = Emergency Steering Button
LA = Lap-Timer
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE

20
21
System Mode
Data Reset
The Data Reset function allows you to reset all the
programming in the selected model (1, 2, 3, ... or 10) to
the factory default settings. Before using the Data Reset
function, it is important to enter the Model Select function
and check to make sure the current model number indicated
(1, 2, 3, ... or 10) is the model to which you want to reset
to the factory default settings. The Model Select function is
described on page 15.
Accessing the Data Reset Function
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn on the transmitter power switch to enter the
System mode.
3. Press the Scroll key until “CLR” appears on
the screen.
4. Press the Increase and Decrease keys at the same
time to reset the data. To confirm that the selected
model’s programming has been reset, a beep will
sound and the model number selected (1, 2, 3, ... or
10) will stop flashing.
5. Press the Scroll key to access the Copy Model
Data function.
6. To exit the System mode, either turn the transmitter
power switch off or press the Scroll and Channel
keys at the same time.
Copy Model Data
Copy Model Data function allows you to copy the
current model data into the model memory of the blinking
model selected. Before using the Copy Model Data
function, be sure you know what model number you
want to copy the data to as all data in this selected model
will be lost. If the current model being copied from uses
the default name, the model name from the model being
copied to will be retained.
Accessing the Copy Model Data Function
1. Press the Scroll and Channel keys at the same
time and hold.
2. Turn on the transmitter power switch to enter the
System mode.
3. Press the Scroll key until “CPY” appears on
the screen.
4. Press the Increase or Decrease key to select the
desired model number you want the current model
data copied to. This model number being select
should be blinking.
5. Press the Increase and Decrease keys at the same
time to copy the current model data into the selected
model number. To confirm that the selected model
has been copied to, a beep will sound and the model
number selected (1, 2, 3, ... or 10) will stop flashing.
6. To exit the System mode, either turn the transmitter
power switch off or press the Scroll and Channel
keys at the same time.
clr
1Model to
be Reset
Press and hold the Scroll and Channel keys
at the same time while turning the transmitter
power switch on. Next, press the Scroll key until
“CLR” appears.
Press the Increase and Decrease keys at the same
time to reset (clear) all settings for the selected
model to the factory default settings
cpy
2Model being
copied to
Press the Increase and Decrease keys at the same
time to copy model data from the current model to
the selected model.
Press and hold the Scroll and Channel keys
at the same time while turning the transmitter
power switch on. Next, press the Scroll key
until “CPY” appears.
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE