Horizon Hobby XR3I User Manual XR3i Manual

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Document ID	262268
Application ID	jgIyCGxGHMBiD1ygi/mWPg==
Document Description	XR3i Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	42.59kB (532393 bits)
Date Submitted	2002-08-08 00:00:00
Date Available	2002-09-19 00:00:00
Creation Date	2002-07-17 12:15:27
Producing Software	Acrobat Distiller 4.0 for Macintosh
Document Lastmod	2002-07-17 12:15:34
Document Title	XR3i Manual

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Page 1
3-Channel, 4-Model Memory
FM Computer Racing System
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Page 2
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . 2
XR3i Quick Start Setup . . . . . . . . . . . 3
Direct Trim Access . . . . . . . . . . . . . . 4
Servo Trim Adjustment . . . . . . . . . 4
System Features . . . . . . . . . . . . . . . . . 5
Transmitter . . . . . . . . . . . . . . . . . . . 5
Receiver . . . . . . . . . . . . . . . . . . . . . . 5
Servos . . . . . . . . . . . . . . . . . . . . . . . 5
System Specifications . . . . . . . . . . . 6
Components . . . . . . . . . . . . . . . . . . 6
Transmitter . . . . . . . . . . . . . . . . . . . 6
Receiver . . . . . . . . . . . . . . . . . . . . . . 6
Servos . . . . . . . . . . . . . . . . . . . . . . . 6
Control Identification
and Location . . . . . . . . . . . . . . . . . . . . 7
R/C Safety Precautions . . . . . . . . . . . 8
Steering Tension Adjustment . . . . . 9
Charging Jack . . . . . . . . . . . . . . . . . . 9
Receiver/Servo Connections
and Installation . . . . . . . . . . . . . . . . . 10
Operating Your Model . . . . . . . . . . 11
Servo Layout . . . . . . . . . . . . . . . . . . 11
Key Input and Display . . . . . . . . . . . 11
Display Screens . . . . . . . . . . . . . . . . 12
Normal Display . . . . . . . . . . . . . . 12
Up-Timer . . . . . . . . . . . . . . . . . . . _?
Low-Battery . . . . . . . . . . . . . . . . . 12
Lithium Battery . . . . . . . . . . . . . . . 12
Memory Backup . . . . . . . . . . . . . 12
Accessing the System Mode . . . . 13
Model Select . . . . . . . . . . . . . . . . 14
Model Name Entry . . . . . . . . . . . 14
Frame Rate Select . . . . . . . . . . . . 15
Auxiliary Channel
3 Function Select . . . . . . . . . . . . . 16
Grip Button C Function Select 17
Data Reset . . . . . . . . . . . . . . . . . . . 19
Copy Model Data . . . . . . . . . . . . 20
Accessing the Function Mode . . . 21
Throttle Deadband . . . . . . . . . . . . 22
Exponential . . . . . . . . . . . . . . . . . . 23
End-Point Adjustment . . . . . . . . 24
Programmable Mixing . . . . . . . . 26
Lap-Timer . . . . . . . . . . . . . . . . . . . 27
Sub-Trim . . . . . . . . . . . . . . . . . . . 28
Servo Reversing . . . . . . . . . . . . . 29
Accessing the Direct Trim Mode 30
Steering Trim . . . . . . . . . . . . . . . . 31
Throttle Trim . . . . . . . . . . . . . . . . . 32
Grip Lever B: Steering Dual-Rate
Trim Adjustment STG . . . . . . . . . 33
Grip Lever A: Brake Endpoint
Adjustment BRK . . . . . . . . . . . . . 34
Auxiliary Channel 3 Access . . . . 35
XR3i Data Sheets . . . . . . . . . . . . . . . 36
Frequency Chart . . . . . . . . . . . . . . . 38
Warranty and Service Information 39
Introduction
Thank you for purchasing the XR3i 3-channel radio system.
This system has been designed to provide R/C racers with a
high quality, user-friendly radio system that can be relied
upon year after year, race after race. The XR3i'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 XR3i system.
For your convenience, a blank data sheet has 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.
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XR3i Quick Start Setup
Included in this manual are in-depth instructions detailing
all the steps and procedures needed to correctly program
each of the XR3i'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 XR3i, 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 16) for instructions.
Servo Reversing
Channel
ST = Steering
TH = Throttle
AUX = Auxiliary Channel 3
(optional)
st
R E V • N O R M
—
Servo Direction
End-Point (Travel) Adjustment
st
E P A
R/B
100
L/F = Left/Forward
R/B = Right/Brake
Adjustment Position
ST = Steering
TH = Throttle
AUX = Auxiliary Channel 3
(optional)
Current Value
SCROLL
1. From the Servo Reverse function, press the Scroll key
three 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
CLEAR
right) to be adjusted.
INCREASE DECREASE
ENTER
SCROLL CHANNEL
1. With the transmitter power switch on, press the Scroll key
to enter the Function mode.
SCROLL
3. Press the Increase or Decrease keys to select the desired
travel value.
Throttle Adjustment
CHANNEL
4. Press the Channel key once. "TH" will appear on
the screen.
CLEAR
2. Press the Scroll key until "REV.NORM" appears on
the screen. The "ST" indicates the steering servo
reversing screen.
CLEAR
INCREASE DECREASE
3. Press the Increase or Decrease key to move the cursor to
the desired servo direction (Rev.Norm).
INCREASE DECREASE
5. Pull the trigger for foward 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 8.
CHANNEL
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.
CHANNEL
7. Press the Channel key once. "AUX" will appear on
CLEAR
the screen.
INCREASE DECREASE
8. Press the Increase or Decrease keys to select the desired
ENTER
travel value.
SCROLL CHANNEL
9. Press the Scroll and Channel keys at the same time to exit
the function mode.
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Direct Trim Access
Servo Trim Adjustment
Steering
stc
T R I M
Current Value
Throttle
Throttle Trim
Function
E P A
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.
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.
thc
T R I M
Steering Trim
Function
Current Value
brk
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.
Brake Function
Diagram A
Decrease
R/B
50
Current Value
Grip Lever A
Brake Trim
Steering Trim
ST.
Throttle Trim
Grip Lever B
Steering
Dual-Rate Trim
Increase
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System Features
Transmitter
R-135 Receiver
• 3 channels
• FM modulation
• Easy-to-read LCD graphics display
• 4-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 function
• Servo reversing
• Sub-trim
• Steering dual-rate
• Exponential (steering and throttle)
• Steering end-point adjustment
(two points: left and right)
• Brake/throttle endpoint adjustment
• Throttle deadband adjustment
• 50-lap timer
• Low-battery alarm
• Plug-in crystals
• Charge jack receptacle (rechargeable batteries
not included; order JRPB958)
• 3 channels
• FM modulation
• 27MHz/75MHz available
• Battery Eliminator Circuitry (BEC)
• 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
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System Specifications
Components
Transmitter
Receiver
Servos
Accessories
R-135 Receiver
XR3i
R-135
Z590M x 1
Z270 x 1
BEC switch harness with
battery case, servo accessories
(for each servo),
instruction manual
XR3i Transmitter
Model number
Encoder
RF output
Modulation
Output power
Current Drain
Power source
Output pulse
XR3i
3-channel computer system
27MHz/75MHz
FM
190Mw
180mA
1.5V x 8 dry cell
(1.2V x 8 Ni-Cd optional)
1000–2000 (1500 neutral)
Model number
Type
Frequency
Sensitivity
(microseconds)
Selectivity
Weight
Size (WxLxH)
Receiver Antenna
Power supply
NER-135
3-channel/FM
ABC&W circuitry
27MHz/75MHz
5qs minimum
8 KHz/50dB
1 oz
1.25" x 1.75" x 0.81"
20"
4.8–6.0V DC
Z270 Servo
Torque
Speed
Weight
Size (WxLxH)
Motor
49 ounce inch (@6.0V)
.19 sec/60° (@6.0V)
1.50 oz
0.73" x 1.51" x 1.37"
3-pole ferrite
Z590M Servo
Torque
Speed
Weight
Size (WxLxH)
Motor
85 ounce inch (@6.0V)
.15 sec/60° (@6.0V)
1.6 oz
0.73" x 1.55" x .146"
3-pole ferrite
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Control Identification and Location
Antenna
Electronic Digital
Throttle Trim Lever
Dot Matrix
Multi- Data
LCD Display
Steering Wheel
Electronic Digital
Steering Trim Lever
Power Switch
Three-Character
Name Input
Digital Voltage
Reading
Scroll Button
= Enter Function
Channel Button
Decrease Button
= Clear Function
Increase Button
Electronic Digital
Grip Lever A
Electronic Digital
Grip Lever B
Throttle Trigger
Adjustable
Steering Tension
Grip Button C
Charge Jack
Battery Cover *
(8 "AA" batteries required)
*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 transmitter
voltage fails to register, check for correct battery installation and voltage.
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R/C Safety Precautions
For safe and reliable performance of your R/C 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 R/C
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 R/C 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 R/C tracks or clubs in your area.
4. When running an R/C 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.
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 R/C 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 (Battery Eliminating Circuitry or BEC),
you should discontinue use when the top speed sharply
decreases or you'll quickly lose control of your model.
Transmitter Crystal Replacement Notice
The Federal Communications Commission (FCC) requires
that changes in transmitter frequency must be preformed
only by an authorized service technician (Horizon Service
Center). Any transmitter frequency changes made by a noncertified technician may result in a violation of the FCC rules.
Crystal
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Steering Tension Adjustment
Charging Jack
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.
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 when the XR3i is equipped with
Ni-Cd batteries (JRPB958, available separately).
JR TRANSMITTER CHARGE JACK POLARITY:
Charger Pigtail For Transmitter
Black To Positive
Red To Negative
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Receiver/Servo Connections and Installation
Your R-135 receiver is equipped with Battery Eliminator
Circuitry (BEC). The receiver gets its power from the model’s
Ni-Cd battery pack, thus saving the weight of an additional
receiver battery. Ni-Cd batteries from 4.8–8.4V (4–7 cells)
can be used safely. Higher voltage packs may damage the
receiver and servos.
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 it
has the correct connector for a BEC system (red connector).
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.
Note: When using a separate receiver Ni-Cd as
a power source, the operating voltage range
is 4.8–6.0V (4- to 5-cell).
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. Be sure to
orient the servo plug correctly for proper insertion.
Figure A – Connections to BEC receiver with mechanical speed controller. Ni-Cd battery and speed controller
are not included in the radio set.
7.2V–8.4V Battery
Mechanical
Speed Control
To Resistors
To Motor
Switch
Third channel
(Optional)
BEC Connector
Battery Box
(for use with optional separate
receiver battery power)
R-135 Receiver
B EC
R-135
Z270/Z590M Servos
Figure B – Connections to BEC receiver with electronic speed controller. Ni-Cd battery and speed controller
are not included in the radio set.
7.2–8.4V Battery
To Motor
ESC
R-135 Receiver
BEC
Third Channel
(Optional)
R-135
Z270/Z590M Servo
10
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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 R/C model will not operate out of control when you turn
off the transmitter.
Servo Layout
Servo Mounting Flange
Servo Arm Retaining Screw
Servo Arm/Horn
Servo Output Shaft
Rubber Grommets
Note: Rubber grommets
and (sometimes) eyelets
are used in fuel-powered
vehicles.
Servo Case
Servo Eyelet
Servo Mounting Flange
Rubber Grommets
Servo Lead with Connector
Z270/Z590M Servo
Top View
Key Input and Display
KEY
USE
SCROLL
Moves up through the available functions
CHANNEL
Selects the desired channel
INCREASE
Increases the value of the selected function
DECREASE
Decreases the value of the selected function
To enter the System mode, press the Scroll
and Channel keys simultaneously and hold
while turning on the transmitter.
ENTER
SCROLL CHANNEL
To enter the Function mode, press the Scroll key
while the transmitter is on.
CLEAR
INCREASE DECREASE
Press the Increase and Decrease keys
simultaneously to clear the screen or return
to factory preset.
11
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Display Screens
Normal Display
Low Battery/Lithium Battery Backup
When the power switch is turned on, the LCD screen will
read as shown below. This screen is referred to as the
Normal Display.
When the voltage of the 8 "AA" batteries drops below 9.0V,
the XR3i'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.
Note: If any of the electronic trim buttons are moved
while in this screen, the screen will automatically
change to display the trim in use. This is called the
Direct Trim mode. For more information on the feature,
please see page 30 of this manual.
bat
md !
10.2V
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 bring back the model name.
(For more information on this feature, please see
page 27.)
L A P
10.2V
8.9V
Lithium Battery
Your XR3i 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 for repair (see address, page 39).
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 XR3i transmitter be returned to the
Horizon Service Center for servicing (see Warranty
Information page 39).
bak
ER
12
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Accessing the System Mode
To enter the System mode, press both the Scroll and
Channel keys at the same time while turning on the
transmitter power switch. By pressing the Scroll key, you can
now choose Model Select, Model Name Input, Frame Rate,
Auxiliary Channel 3 function, Grip button C function, Data
Reset or the Model Copy function as shown here on the
System Mode flow chart. Information for each function is
located on the page number listed next to the function name
on the flow chart.
frm
To exit the System mode, press the Scroll and Channel keys
at the same time 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
mdl
Auxiliary Channel 3
Function
(page 16)
gbc
Model Select
(page 14)
Frame Rate
(page 15)
Grip Button C
Function
(page 17)
20
md !
clr
Model Name Entry
(page 14)
Data Reset
(page 19)
25
21
cpy
Copy Model Data
(page 20)
26
13
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Model Select
(System Mode)
Model Name Entry
(System Mode)
The XR3i has memory for four models. This feature allows
for four different models to be operated with the same transmitter (additional receivers and servos must be purchased
separately) or one model with four different race setups.
The XR3i allows a three-character name to be input for
each of the four 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.
Character to
be Adjusted
mdl
Model Select
Fuction
Current Model
Number
Accessing the Model Select Function
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 4).
ENTER
SCROLL CHANNEL
CLEAR
INCREASE DECREASE
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 4).
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.
14
md !
Current Model
Number
Accessing the Model Name
Entry Function
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 Increase or
Decrease keys to
select the correct
letter/number to be used.
Press the Channel
key to select the
character to be
ENTER
changed.
SCROLL CHANNEL
CLEAR
INCREASE DECREASE
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.
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Frame Rate Select (System Mode)
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 at least one digital servo.
frm
Current
Frame Rate
Note: The Frame Rate function offers quicker
response times in the “F” or Fast mode. Some
types of non-JR servos are not compatible in the
“F” Fast mode and require the radio to be operated
in the “N” Normal mode.
Accessing the Frame Rate Function
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.
ENTER
SCROLL CHANNEL
CLEAR
INCREASE DECREASE
Press the Increase or Decrease key to select the
desired frame rate.
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.
15
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Auxiliary Channel 3 Function Select (System Mode)
The Auxiliary Channel 3 function of the XR3i 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.
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, page 24.
(Factory preset)
0 = The 0 or Inhibit function allows the Brake End-Point
Adjustment function, page 34, to be used. This function
is designed to be used with most types of electric and
gas-powered R/C 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 30.
aux
Auxiliary Channel 3
Function
Channel 3 is Inhibited
(Grip Dial A braking
function is now
activated)
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
R/C 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, page 24. 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 35.
aux
LN
16
Auxiliary Channel 3
Function
Linear Movement
(fuel mixture servo)
aux
Auxiliary Channel 3
Function
2P
Non-linear
Two-Position
Movement
(Traxxas shiftable
transmission use)
Accessing the Auxiliary
Channel 3 Function
Press and hold the
Scroll and Channel
ENTER
keys at the same time
SCROLL CHANNEL
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.
CLEAR
INCREASE DECREASE
0 = Inhibited (Grip Dial A braking is active)
LN = Linear servo movement
2P = 2-position servo movement
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.
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Grip Button C Function Select (System Mode)
The Grip Button C function of the XR3i 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.
gbc
LA
Grip Button
Function
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.
gbc
Grip Button C
{Figure 24-Insert new drawing of Grip Button Function
C and Eb value
Lap-Timer
"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.
Callout GBC -
EB
Callout Eb - Indicates
Emergency Steering Button is
Emergency
activated}
Steering Button
is Activated
LA = The LA or Lap-Timer function is designed to be used
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.
when you want to enable the recording of individual lap time.
The Lap-Timer function is described on page 27.
Button
{Figure 24-Insert new drawing of Grip Button Grip
C and
LA Cvalue
gbc
Callout GBC - Indicates Grip Button C function
Callout LA - Indicates Lap Timer button is activated}
(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.
gbc
LA
Function
Lap-Timer Button is
Activated
Grip Button C
Function
Grip Button C is
Inhibited
17
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Accessing the Grip Button C Function
Press and hold the
Scroll and Channel
ENTER
keys at the same time
SCROLL CHANNEL
to enter the System
Mode. Next Press the
Scroll key until "GBC"
appears.
Press the Increase or
Decrease key to
CLEAR
select the desired
INCREASE DECREASE
Grip Button C
function type to
be used.
0 = Inhibited
Eb = Emergency Steering Button
LA = Lap-Timer
18
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.
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Data Reset (System Mode)
The Data Reset function allows you to reset all the programming in the selected model (1, 2, 3 or 4) 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 4) is the
model to which you want to reset to the factory default
settings. The Model Select function is described on page 14.
Press and hold the Scroll
and Channel keys at the
ENTER
same time while turning SCROLL CHANNEL
the transmitter power
switch on. Next, press
the Scroll key until
“CLR” appears.
CLEAR
INCREASE DECREASE
clr
Accessing the Data Reset Function
Model to
be Reset
Press the Increase and Decrease keys at the
same time to reset (clear) all settings for the
selected model to the factory default settings
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 4) 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.
19
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Copy Model Data (System Mode)
The 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.
cpy
Model being
copied to
Accessing the Copy Model
Data Function
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.
ENTER
SCROLL CHANNEL
CLEAR
INCREASE DECREASE
Press the Increase and Decrease keys at the
same time to copy model data from the current
model to the selected model.
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 4) 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.
20
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Accessing the Function Mode
To enter the Function mode, it is necessary to first turn on
the transmitter's power switch. Next, press the Scroll key
until a beep is heard. The display will change to show the
first function listed on the Function mode flow chart as
shown below. Press the Scroll key to scroll down through
the functions one by one, as shown in the flow chart. Once
the desired function has been reached, use the Channel key
Mode Key
tdb
R/B
0∞
st
E X P
Channel Key
Throttle
Deadband
(page 22)
Channel Key
thf
E X P
LN
E P A
L/F
M I X
st
Channel
Key
E P A
R/B
Channel
Key
M I X
0∞
L A P
40
Exponential
(page 23)
LN
100
stl
to select the appropriate channel (if applicable). To adjust
the values of the function, simply press the Increase (+) or
Decrease (-) keys until the desired value is displayed on the
screen. To exit function mode, press the Scroll and Channel
keys at the same time. The next time you enter Function
mode, you will be returned to the last function accessed.
th
Channel
Key
L/F
100
thb
E P A
aux
End-Point
Adjustment
(page 24)
100
Mixing
(page 26)
0∞
Lap-Timer
(page 27)
20
T R I M
sts
Channel
Key
T R I M
st
R E V • N O R M
—
ths
Channel
Key
T R I M
Channel
Key
S B - T R M
th
R E V • N O R M
—
aus
Sub-Trim
(page 28)
Channel
Key
S B - T R M
aux
Servo Reversing
(page 29)
R E V • N O R M
—
21
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Throttle Deadband (Function Mode)
The throttle deadband feature is used to reduce/eliminate the
dead throttle area that exists at neutral to the starting point of
throttle and from neutral to the starting point of braking. This
area is sometime known as deadband. As more throttle trim
(also known as static brake) is applied, more of the dead
trigger area right off neutral exists. To eliminate the throttle
deadband, adjust a forward value such that your vehicle's
wheels just start to turn when the trigger is slightly squeezed.
This provides the most accurate feel and eliminates the dead
area in the throttle. To eliminate the braking deadband,
adjust the brake value such that your vehicle starts to slow
down when the trigger is slightly pushed. This provides
the most accurate brake feel and eliminates the dead area
when braking.
tdb
L/F
0∞
tdb
R/B
Values: 0% to 100%
Clear = 0%
22
∞
Forward Adjustment
(depends on
trigger position)
Current Value
Brake Adjustment
(depends on
trigger position)
Current Value
Accessing the Throttle
Deadband function
Press the Scroll key
until "TDB" appears on
the screen.
ENTER
SCROLL CHANNEL
CLEAR
INCREASE DECREASE
Press the Increase or Decrease key to select the
desired value necessary.
1. Turn the transmitter power switch on.
2. Press the Scroll key to access Function mode.
3. Press the Scroll key until "TDB" appears on the screen
4. Move the trigger accordingly to adjust the forward or
braking deadband.
5. Press the Increase or Decrease key to select the desired
value necessary to eliminate dead area.
6. Press the Scroll key to access the Exponential function.
7. To exit the Function mode, either turn off the transmitter
power switch or press the Scroll and Channel keys at the
same time.
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Exponential (Function Mode)
The Exponential feature of the XR3i allows you to alter
the response rate of the steering or throttle control around
neutral without affecting the maximum amount of steering
or throttle available. The adjustment range is from -100% to
0% (Linear) to +100%. Exponential is factory set to linear for
both steering and throttle. Exponential is often used to settle
down a car that is twitchy around center without giving up
maximum steering response. The XR3i provides both positive (increase sensitivity at neutral) and negative (decrease
sensitivity at neutral) exponential values.
E X P
st
ln
E X P
thf
ln
E X P
thb
ln
Steering Exponential
Adjustment
Current Value
Forward Throttle Exponential
Adjustment
Current Value
Braking Exponential
Adjustment
Accessing the Exponential function
Press the Scroll key
until "EXP" appears on
the screen.
ENTER
SCROLL CHANNEL
CLEAR
INCREASE DECREASE
Press the Increase and Decrease keys to select
the desired exponential value.
Values: -100% to Linear (LN) to +100%.
1. Turn the transmitter power switch on.
2. Press the Scroll key to access the Function mode.
3. Press the Scroll key until "EXP" appears in small letters
on the left side of the screen.
4. Press the Increase or Decrease keys to select the desired
exponential value.
5. Press the Scroll key to access the travel End-Point
Adjustment function
6. To exit the Function mode, either turn off the transmitter
power switch or press the Scroll and Channel keys at the
same time.
Current Value
23
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End-Point Adjustment (Function Mode)
The End-Point Adjustment feature of the XR3i allows the
maximum travel of both the steering, throttle and Auxiliary
Channel 3 (optional) servos to be increased or decreased in
each direction to achieve the exact servo movement needed.
The End-Point Adjustment range is from 0% to 125% and is
factory set to 100% for both channels. The value displayed
on the screen depends on the current position of the steering
wheel, trigger, or trim lever to be adjusted. This feature is
very useful either to maximize servo travel or to reduce servo
over-travel to eliminate servo binding (servo moves further
than control mechanism allows), without the need for
mechanical linkage adjustment.
The screens below are accessed by turning the wheel to the
desired direction to be adjusted (left or right), by moving the
trigger to the forward or backward (brake) position, or by
moving the Grip Lever A to the forward or back positions.
E P A
L/F
st
100
Steering Left
End-Point Adjustment
Current Value
Values: 0 to 125
Clear = 100
th
E P A
L/F
100
th
E P A
R/B
100
E P A
R/B
st
100
Current Value
Values: 0 to 125
Clear = 100
Functions
Backward Throttle (Brake)
End-Point Adjustment
Current Value
Values: 0 to 125
Clear = 100
LN & 2P
L/F
aux
100
Left/Right Travel
Adjustment (function LN)
or Forward Travel
Adjustment
(function 2P) accessible
through Grip Button C
Current Value
Values: 0 to 190
Clear = 100
Functions 2P only
E P A
R/B
24
Current Value
Values: 0 to 125
Clear = 100
Channel 3 Screens
(Optional)
E P A
Steering Right
End-Point Adjustment
Forward Throttle
End-Point Adjustment
aux
100
Rearward Travel Adjustment
(function 2P) accessible
through Grip Button C
Current Value
Values: 0 to 190
Clear = 100
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Accessing The End-Point
Adjustment Function
Press the Scroll key
until "EPA" appears on
the screen
ENTER
SCROLL CHANNEL
Press the Channel key
to select the channel to
be adjusted
5. Move the steering wheel, trigger or Grip Button C in the
desired direction for adjustment (left/right, forward/reverse
or brake). Press the Increase or Decrease key to achieve
the desired amount of travel. Move the wheel, trigger or
Grip Button C in the opposite direction to adjust the travel
in the opposite direction.
Note: For Auxiliary Channel 3 function, if LN is
selected, only L/F is adjustable.
CLEAR
INCREASE DECREASE
Move the wheel/trigger or Grip Button C in the desired direction and press
either the Increase or Decrease keys to achieve the desired travel value
1. Turn on the transmitter power switch.
2. Press the Scroll key to enter Function mode.
3. Press the Scroll key until "EPA" appears in small letters
on the left side of the screen.
4. Press the Channel key to select the desired channel to
be adjusted.
Steering = ST R/B(steering right) or ST L/F (steering left)
Throttle = TH L/F (forward) or TH R/B (braking or reverse)
Auxiliary Channel 3 (optional) = AUX L/F or AUX R/B
(function 2P only)
6. Press the Scroll key to access the Mixing Adjustment
function.
7. To exit the Function mode, either turn off the transmitter
power switch or press the Scroll and Channel keys at the
same time.
Note: When setting the end point adjustment values
for the steering function, it is suggested that, if possible,
the maximum travel values be set to an equal value
in both directions to maintain proper steering control.
25
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Programmable Mixing (Function Mode)
The XR3i offers two different mixing adjustments that allows
for mixing one channel to another channel. The mixes
available are Steering-to-Auxiliary Channel Mixing and
Throttle-to-Auxiliary Channel Mixing. Each direction is
independently adjustable. Popular use of this function
includes 4-wheel steering and independent front and rear
wheel brakes.
M I X
stl
Steering-to-Auxiliary
Channel Mixing
Adjustment
10∞
M I X
thb
Press the Scroll key
until "MIX" appears on
ENTER
the screen.
SCROLL CHANNEL
Press the Channel
key to select the
desired mix.
CLEAR
INCREASE DECREASE
Move the wheel or trigger in the desired direction
and press either the Increase or Decrease keys to
achieve the desired mixing value.
Throttle-to-Auxiliary
Channel Mixing
Adjustment
— 10∞
For example, Throttle-to-Auxiliary channel mixing can be
used for independent front and rear wheel brakes. Each time
the throttle/brakes is moved, the auxiliary channel will move
in the direction and to the value input being given by the
throttle channel. Mixing is proportional, so small inputs to
the throttle will result in small output from the auxiliary
channel. The adjustment range is from -125% to 0% to
125%. If the rate is negative, the channel is mixed in the
opposite direction.
Both mixes share a single mixing "offset." The purpose of
the mixing offset is to redefine the neutral position of the
auxiliary channel, which can be set using Grip Lever A when
"LN" is selected in the Auxiliary Channel 3 function. If the
"LN" selection is turned off in the Auxiliary Channel 3
function with a offset value currently present, the value will
continue to act as a mixing offset until the value is either
cleared or changed. If a mix is not required, it is strongly
suggested the mixing rate be set for 0%, which is the default.
26
Accessing The Mixing
Adjustment Function
1. Turn on the transmitter power switch.
2. Press the Scroll key to enter Function mode.
3. Press the Scroll key until "MIX" appears in the screen.
4. Press the Channel key to select the desired mix to
be used.
STR or STL = Steering-to-Auxiliary Channel 3 Mixing.
THF or THB = Throttle-to-Auxiliary Channel 3 Mixing.
5. Move the steering wheel or trigger in the desired direction
for adjustment (left/right, forward/reverse or brake).
Press the Increase or Decrease key to achieve the desired
amount of mixing. Move the wheel or trigger in the
opposite direction to adjust the mixing in the opposite
direction.
6. Press the Scroll key to access the Lap-Timer function
(if enabled) or Sub-Trim function.
7. To exit the Function mode, either turn off the transmitter
power switch or press the Scroll and Channel keys at the
same time.
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Lap-Timer (Function Mode)
The Lap-Timer function of the XR3i allows the recording of
individual lap times based on a 999 second up-timer. Up to
50 laps and times from 3.0 to 99.9 seconds can be stored in
memory for review at a later time. The Lap-Timer function
will only be enabled and shown in Function mode if Grip
Button C (System Mode) is set to "LA." With the Lap-Timer
enabled, pressing the channel key will alternate between the
Normal display screen and Up-Timer display screen.
Accessing The Lap-Timer Function
Press the Scroll key
until "LAP" appears on
the screen.
ENTER
SCROLL CHANNEL
CLEAR
The Lap-Timer is started by pressing Grip Button C. Once
active, as shown by the blinking word "LAP," pressing Grip
Button C again will begin recording the time of the next lap.
Note: A 3.0 second lap is the quickest lap allowed.
This prevents accidental double pushing of Grip Button
C when recording lap times. If more than 50 laps are
recorded, each new lap will overwrite the oldest lap
held in memory.)
To stop the Lap-Timer, press the Increase and Decrease keys
at the same time. To restart the Lap-Timer, press Grip Button
C. To reset the Up-Timer, press the Channel key to show the
Up-Timer display screen. With the Up-Timer stopped, press
the Increase and Decrease keys at the same time to reset.
INCREASE DECREASE
Press the Increase or Decrease keys
to view the desired lap time(s).
1. Turn on the transmitter power switch.
2. Press the Scroll key to enter Function mode.
3. Press the Scroll key until "LAP" appears in the screen.
4. Press the Increase or Decrease keys to view the desired
lap time(s).
5. To reset all lap times press the Increase and Decrease
keys at the same time.
6. Press the Scroll key to access the Sub-Trim function.
7. To exit the Function mode, either turn off the transmitter
power switch or press the Scroll and Channel keys at the
same time.
To review or reset lap times you must be in the Lap-Timer
function mode screen. Upon entering this function, the
screen will always show the last lap time recorded. Use the
Increase or Decrease keys to view the desired lap(s).
Note: If a recorded lap time is greater than
99.9 seconds, "OVR" will be displayed.)
To reset all lap times, press the Increase and Decrease keys
at the same time.
L A P
—
401
20
Recorded Lap
Time to 1/10th of
a second
(i.e. 40.1 sec.)
Current
Lap Number
A minus sign indicates a pre-existing lap. Current lap times have no sign.
27
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Sub-Trim (Function Mode)
The Sub-Trim function of the XR3i is an electronic trimming
feature that allows the neutral position of the servo on either
the steering, throttle or auxiliary channel (optional) to be
moved, while allowing the electronic trim lever for that
channel to remain in the center position. This feature is very
useful as it allows the servo arm/wheel position to be moved
to help with control linkage installation, eliminating the need
to make mechanical linkage adjustments.
Accessing the Sub-Trim Function
Press the Scroll key
until "TRIM" appears
on the screen.
ENTER
SCROLL CHANNEL
Press the Channel key
to select the desired
channel to be adjusted.
STS = Steering
THS = Throttle
AUS = Auxiliary
Channel 3
CLEAR
Although the Sub-Trim function is a very useful feature, it is
suggested that only small amounts of sub-trim be used so
that no unwanted, non-equal servo travel is created. It is
suggested that less than 30 points of Sub-Trim be used
during adjustment. If more than 30 points of Sub-Trim are
required, it is suggested that a mechanical linkage
adjustment be performed.
T R I M
sts
Values: R/B 125
28
R/F 125
Current Channel
STS = Steering
THS = Throttle
AUS = Auxiliary
Channel 3
Current Value
INCREASE DECREASE
Press the Increase or Decrease keys to achieve
the desired Sub-Trim Value.
1. Turn on the transmitter power switch.
2. Press the Scroll key to enter Function mode.
3. Press the Scroll key until "TRIM" appears in small letters
to the left of the screen.
4. Press the Channel key to select the channel to be adjusted
(Steering, Throttle or Auxiliary Channel 3).
5. Press the Increase or Decrease keys until the proper servo
position is achieved.
6. Press the Scroll key to access the Servo Reversing
function.
7. To exit the Function mode, either turn off the transmitter
power switch or press the Scroll and Channel keys at the
same time.
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Servo Reversing (Function Mode)
The Servo Reversing feature of the XR3i is a very convenient
feature when setting up a new model. The purpose of the
servo reversing function is to change the direction of the
servo rotation in relation to the wheel/trigger movement. The
Servo Reversing function is available for the steering, throttle
and Auxiliary Channel 3 of the XR3i.
st
R E V • N O R M
—
Current Channel
ST = Steering
TH = Throttle
AUX = Auxiliary
Channel 3
Current Servo
Direction
Accessing the Servo
Reversing Function
Press the Mode key
until “REV. NORM”
ENTER
appears on the screen. SCROLL CHANNEL
Press the Channel key
to select the desired
channel to be adjusted.
STS = Steering
THS = Throttle
AUX = Auxiliary
Channel 3
CLEAR
INCREASE DECREASE
Press the Increase or Decrease keys to move
the cursor to the desired servo direction.
1. Turn the transmitter power switch on.
2. Press the Scroll key to access Function Mode.
3. Press the Scroll key until "REV.NORM" appears in small
letters to the right of the screen.
4. Press the Channel key to select the channel to be changed
(ST = Steering, TH = Throttle, AUX = Auxiliary Channel 3).
5. Press the Increase or Decrease keys to move the cursor to
the desired direction.
6. To exit the Function mode, either turn off the transmitter
power switch or press the Scroll and Channel keys at the
same time.
29
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Accessing the Direct Trim Mode
The Direct Mode function of the XR3i is accessible through
the use of the electronic throttle or steering trim levers, as
well as the two electronic grip levers (A&B) located on the
upper portion of the grip handle. This function allows for
quick trim adjustment of these controls.
stc
T R I M
Steering Trim
(page 31)
To access the Direct Trim Mode function, turn on the
transmitter power switch. Next, move the desired trim lever
to be adjusted. The appropriate screen for the selected trim
lever will be displayed. To adjust, simply move the trim lever
in the desired direction until the correct amount of trim is
achieved. Once the desired trim is achieved, the screen will
return to the Normal display screen after approximately two
seconds from the last trim input. If the Increase or Decrease
keys are pressed any time during the two seconds, the
system will return to the previous screen in use.
Only present when Aux. function “O” is selected
E P A
thc
T R I M
Throttle Trim
(page 32)
stg
∞
70
50
R A T E
R/B
brk
Steering Dual-Rate
(Grip Lever B)
(page 33)
Brake Travel Adjustment
(Grip Lever A),
(page 34)
(Only visible when the
Auxiliary Channel 3
function “O” has been
selected.) Refer to
Auxiliary Channel 3
function, page 16, for
clarification.
Only present when Auxiliary function “LN” is selected
Auxiliary Channel 3
Trim Adjustment
(LN mode only)
Refer to Auxiliary
Channel 3 function,
page 35, for
clarification.
aux
*Note: When Auxiliary Channel 3 function 2P is
selected, the two screens above are not present.
30
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Steering Trim (STC)
The XR3i electronic Steering Trim lever, located just above
the steering wheel, allows the center position of the servo
to be manipulated in either direction to achieve precise
centering of the steering assembly. Steering travel end-point
adjustment values (page 24) remain completely independent
from the steering trim, unless the trim value exceeds the
selected end-point values. (For example, if trim values are
set at 30 and end-point values at 15, steering trim will override/alter the end-point value.)
To adjust the steering trim servo position, move the
electronic Steering Trim lever either to the left or the right.
As soon as the trim is moved, the "STC" Steering Trim
screen will appear and will continue to be displayed unless
the trim lever is untouched for a period of two seconds. To
reset the trim value to 0, press the Increase and Decrease
keys at the same time while the "STC" screen is displayed.
Steering Trim
Left Trim
T R I M .
Values: L/F 30
stc
Steering Trim
Screen
Current Value
Right Trim
ST.
R/B 30
Steering Trim Location
CLEAR
INCREASE DECREASE
Press the Increase and Decrease keys at the
same time to reset the steering trim to zero.
Each click will provide 0.3° of trim to the center of the
steering servo with a maximum of 12° allowed.
Note: Each click will not always result in a
change of the value displayed.
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Throttle Trim (THC)
The XR3i's electronic Throttle Trim lever, located to the left
of the steering wheel, allows the center position of the servo
to be manipulated in either direction to achieve precise
centering of the throttle trigger neutral position. Throttle
end-point adjustment values (page 24) remain completely
independent from the throttle trim, unless the trim value
exceeds the selected end-point values. (For example, if the
trim value is set at 40 and the end-point values at 30,
Throttle Trim will override/alter the end-point value.)
T R I M .
stc
Values: L/F 60
R/B 60
CLEAR
Each click will provide 0.3° of trim to the throttle servo with a
maximum of 24° allowed.
Note: Each click will not always result in a change
of the value displayed.
To adjust the Throttle Trim servo position, move the
electronic steering trim lever either up or down. As soon as
the trim is moved, the "THC" Throttle Trim screen will appear
and will continue to be displayed unless the trim lever is
untouched for a period of two seconds. To reset the trim
value to zero, press the Increase and Decrease keys at the
same time while the "THC" screen is displayed.
Current Value
ST.
Increase
Throttle Trim
4680
Decrease
INCREASE DECREASE
Press the Increase and Decrease keys at the same
time to reset the throttle trim value to zero.
32
Throttle Trim Location
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Grip Lever B: Steering Dual-Rate Trim Adjustment (STG)
The Steering Dual-Rate adjustment, located at Grip Lever B,
allows the Dual-Rate value (maximum servo travel) to be
increased or decreased within a range from 100% through
20% of the total end point value established in the steering
EPA function. This function is very useful in race conditions
as it allows you to custom tailor the steering radius and
sensitivity for the current track conditions.
R A T E
stg
70∞
If the Emergency Steering button function (page 17) is
active, pressing Grip Button C will restore the steering dual
rate to 100% until the button is released.
To adjust the Steering Dual-Rate value, move the electronic
Grip Lever B either left (-) or right (+). As soon as the trim is
moved, the “STG” Steering Dual-Rate screen will appear and
will continue to be displayed unless the Grip Lever B is
untouched for a period of two seconds. To reset the trim
value to the factory preset setting of 70%, press the Increase
and Decrease keys at the same time while the "STG" screen
is displayed.
Current Value
(20% to 100%)
Decrease
Increase
CLEAR
INCREASE DECREASE
Press the Increase and Decrease keys at the same time to
reset the steering dual rate trim to the factory preset (70%).
Please note that since the Dual-Rate value shown in the
"STG" screen is the percentage of the end-point value
established in the Steering EPA function, the value will
not always increase or decrease each time Grip Lever B
is moved.
Grip Lever B
Steering Dual
Rate Trim
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Grip Lever A: Brake End-Point Adjustment BRK/Auxiliary
Channel 3 Access
Brake End-Point Adjustment
The Brake End-Point Adjustment, located at Grip Lever A,
allows the maximum servo travel on the braking side of the
throttle trigger to be increased or decreased from 100% to
0% (off). This function is very useful in race conditions as it
allows the racer to custom tailor the "panic" brake value to
maximize the car's braking power for the current track
conditions. Please note that since the Brake End-Point value
shown in the "BRK" screen is a percentage of the total
braking value established in the End-Point Adjustment
function (page 24), the value will not always increase or
decrease each time the Grip Lever A is moved.
E P A
R/B
brk
50
Note: If Grip Lever A is assigned an Auxiliary
Channel 3 function by selecting "LN" or "2P"
with Grip Button C in use, the Brake End-Point
Adjustment will not be available.
To adjust the brake endpoint value, move the electronic Grip
Lever A either left (-) or right (+). As soon as the grip lever is
moved, the BRK End-Point Adjustment screen will appear
and will continue to be displayed unless the Grip Lever A is
untouched for a period of two seconds.
Decrease
Increase
Grip Lever A
Brake Trim
Current Value
(100% to 0%)
Move the grip lever A to the left or right to decrease or increase values.
34
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Auxiliary Channel 3 Access
(Fuel Mixture)
Auxiliary Channel 3 Access
(Transmission Shift Selector)
When selected, Grip Lever A can be used to access the
Auxiliary Channel 3 function of the XR3i for use as a fuel
mixture channel.
When the 2P Auxiliary Channel function is selected, the Grip
Lever A can be used to move the Auxiliary 3 Channel servo
to one of two positions (left/right or forward/reverse) when
LA or Eb is selected for the Grip Button C function. Please
refer to diagram A below for proper shifting procedures.
Auxiliary Channel 3 Fuel Mixture Control (LN selected)
aux
Note: The End-Point Adjustment function
(page 24) is used to set the forward and reverse
gear servo travel positions.
Current Value
When the LN (linear) Auxiliary Channel 3 function is
selected, Grip Lever A can be used to change the neutral
position of the servo to lean or richen the engine's fuel
mixture. Once the desired fuel mixture has been achieved,
the Grip Lever A value indicated on this screen can be
transferred manually to the Sub-Trim function (page 28) and
the value of the AUX screen can be returned to zero. Please
refer to diagram A to the right for proper grip lever operation.
Forward Gear
Reverse Gear
Decrease
(Transmission Use)
Increase
(Fuel Mixture Use)
Grip Lever A
Brake Trim
Diagram A
35
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XR3i Data Sheet
System Mode
MODEL NUMBER
MODEL NAME
FRAME RATE
N/F
AUX FUNCTION
O/2P/LN
GRIP BUTTON C
O/Eb/LA
Function Mode
STEERING
THROTTLE
THROTTLE DEADBAND
EXPONENTIAL
__________%
AUX
F__________%
B__________%
F__________%
B__________%
END-POINT ADJUSTMENT
L__________
R__________
F__________
MIXING
L__________%
R__________% F__________%
B__________
L__________
R__________
B__________%
SUB-TRIM
SERVO REVERSING
REV/NORM
REV/NORM
REV/NORM
THROTTLE
–/+
AUX. CHANNEL 3
–/+
BRAKE EPA
AUX FUNCTION “LN”
Direct Mode
TRIM
VALUES
STEERING
–/+
GRIP LEVER B
STEERING D/R
GRIP
LEVER A VALUES
System Mode
MODEL NUMBER
MODEL NAME
FRAME RATE
N/F
AUX FUNCTION
O/2P/LN
GRIP BUTTON C
O/Eb/LA
Function Mode
STEERING
THROTTLE
THROTTLE DEADBAND
EXPONENTIAL
__________%
AUX
F__________%
B__________%
F__________%
B__________%
END-POINT ADJUSTMENT
L__________
R__________
F__________
MIXING
L__________%
R__________% F__________%
B__________
L__________
R__________
B__________%
SUB-TRIM
SERVO REVERSING
REV/NORM
REV/NORM
REV/NORM
THROTTLE
–/+
AUX. CHANNEL 3
–/+
BRAKE EPA
AUX FUNCTION “LN”
Direct Mode
TRIM
VALUES
GRIP LEVER B
STEERING D/R
GRIP
LEVER A VALUES
36
STEERING
–/+
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XR3i Data Sheet
System Mode
MODEL NUMBER
MODEL NAME
FRAME RATE
N/F
AUX FUNCTION
O/2P/LN
GRIP BUTTON C
O/Eb/LA
Function Mode
STEERING
THROTTLE
THROTTLE DEADBAND
EXPONENTIAL
__________%
AUX
F__________%
B__________%
F__________%
B__________%
END-POINT ADJUSTMENT
L__________
R__________
F__________
MIXING
L__________%
R__________% F__________%
B__________
L__________
R__________
B__________%
SUB-TRIM
SERVO REVERSING
REV/NORM
REV/NORM
REV/NORM
THROTTLE
–/+
AUX. CHANNEL 3
–/+
BRAKE EPA
AUX FUNCTION “LN”
Direct Mode
TRIM
VALUES
STEERING
–/+
GRIP LEVER B
STEERING D/R
GRIP
LEVER A VALUES
System Mode
MODEL NUMBER
MODEL NAME
FRAME RATE
N/F
AUX FUNCTION
O/2P/LN
GRIP BUTTON C
O/Eb/LA
Function Mode
STEERING
THROTTLE
THROTTLE DEADBAND
EXPONENTIAL
__________%
AUX
F__________%
B__________%
F__________%
B__________%
END-POINT ADJUSTMENT
L__________
R__________
F__________
MIXING
L__________%
R__________% F__________%
B__________
L__________
R__________
B__________%
SUB-TRIM
SERVO REVERSING
REV/NORM
REV/NORM
REV/NORM
THROTTLE
–/+
AUX. CHANNEL 3
–/+
BRAKE EPA
AUX FUNCTION “LN”
Direct Mode
TRIM
VALUES
GRIP LEVER B
STEERING D/R
GRIP
LEVER A VALUES
STEERING
–/+
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Frequency Chart
FREQUENCY CHART
FREQUENCY (MHZ)
CHANNEL
26.995 ..........................1
27.045 ..........................2
27.095 ..........................3
27.145 ..........................4
27.195 ..........................5
27.255 ..........................6
75.410 ........................61
75.430 ........................62
75.450 ........................63
75.470 ........................64
75.490 ........................65
75.510 ........................66
FREQUENCY (MHZ)
CHANNEL
75.530 ........................67
75.550 ........................68
75.570 ........................69
75.590 ........................70
75.610 ........................71
75.630 ........................72
75.650 ........................73
75.670 ........................74
75.690 ........................75
75.710 ........................76
75.730 ........................77
75.750 ........................78
Transmitter Crystal Replacement Notice
The Federal Communications Commission (FCC) requires
that changes in transmitter frequency must be preformed
only by an authorized service technician (Horizon Service
Center). Any transmitter frequency changes made by a noncertified technician may result in a violation of the FCC rules.
38
FREQUENCY (MHZ)
CHANNEL
75.770 ........................79
75.790 ........................80
75.810 ........................81
75.830 ........................82
75.850 ........................83
75.870 ........................84
75.890 ........................85
75.910 ........................86
75.930 ........................87
75.950 ........................88
75.970 ........................89
75.990 ........................90
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Warranty and Service Information
Note: Be sure to keep your original dated sales
receipt in a safe place as you will be required to
provide proof of purchase date for the equipment
to be serviced under warranty.
Warranty Coverage
Your new JR Remote Control Radio System is warranted
to the original purchaser against manufacturer defects in
material and workmanship for 3 years from the date of
purchase. During this period, Horizon Service Center will
repair or replace, at our discretion and at no cost to the
purchaser, any component that is found to be factory
defective. This warranty is limited to the original purchaser
of the unit and is not transferable.
This warranty does not apply to any unit that has been
improperly installed, mishandled, abused or damaged in a
crash or to any unit which has been repaired or altered by
any unauthorized agencies. Under no circumstances will the
buyer be entitled to consequential or incidental damages.
This limited warranty gives you specific legal rights; you
also have other rights which may vary from state to state.
As with all fine electronic equipment, do not subject your
radio system to extreme temperatures, humidity or moisture.
Do not leave it in direct sunlight for long periods of time.
Repair Service Directions
In the event that your JR radio needs service, please follow
the instructions listed below.
1. Check all on/off switches to be sure they are off. This will
speed the repair process of checking battery condition.
4. Include detailed information explaining your operation
of the system and problem(s) encountered. Provide an
itemized list of equipment enclosed and identify any
particular area/function, which may better assist our
technicians in addressing your concerns. Date your
correspondence and be sure your complete name and
address appear on this enclosure.
5. Include you name, mailing address and a phone number
where you can be reached during the business day.
6. Within your letter, advise us of the payment method you
prefer to use. The Horizon Service Center accepts only
VISA or MasterCard. Please include your card number
and expiration date.
Warranty Repairs
To receive warranty service, you must include your original
dated sales receipt to verify your proof-of-purchase date.
Providing that warranty conditions have been met, your radio
will be repaired without charge.
Normal Non-Warranty Repairs
Should your repair cost exceed 50% of the retail purchase
cost, you will be provided with an estimate advising you of
your options.
Ship your system to:
Horizon Service Center
4105 Fieldstone Road
Champaign, IL 61822
Phone: (217) 355-9511
2. Return your system components only (transmitter,
receiver, servos, etc.). Do not return your system installed
in a model car, boat, etc.
3. Preferably, use the original carton/packaging
(molded foam container) or equivalent to ship your
system. Do not use the system carton itself as a shipping
carton. You should package the system carton within a
sturdy shipping container using additional packing material to safeguard against damage during transit. Include
complete name and address information inside the carton,
as well as clearly writing it on the outer label/return
address area.
39
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944013 001271
JRPM127
Copyright 2002 Horizon Hobby, Inc.
©
4680

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