JR Racing XR3i User manual

3-Channel, 4-Model Memory
FM Computer Racing System
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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 . . . . . . . . . . . . . . . . . . . . . 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
Table of Contents
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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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
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.
End-Point (Travel) Adjustment
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
right) to be adjusted.
3. Press the Increase or Decrease keys to select the desired
travel value.
Throttle Adjustment
4. Press the Channel key once. "TH" will appear on
the screen.
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.
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.
st
—
REV•NORM
SCROLL
ENTER
CHANNEL
CHANNEL
CHANNEL
SCROLL
SCROLL
INCREASE
CLEAR
DECREASE
INCREASE
CLEAR
DECREASE
INCREASE
CLEAR
DECREASE
INCREASE
CLEAR
DECREASE
Channel
ST = Steering
TH = Throttle
AUX = Auxiliary Channel 3
(optional)
Servo Direction
st
R/B 100
EPA
Adjustment Position
ST = Steering
TH = Throttle
AUX = Auxiliary Channel 3
(optional)
Current Value
L/F = Left/Forward
R/B = Right/Brake
CHANNEL
SCROLL
ENTER
CHANNEL
XR3i Quick Start Setup
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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.
stc
0
TRIM
thc
0
TRIM
ST.
Steering Trim
Function
Throttle Trim
Function
Current Value
Current Value
Throttle Trim
Steering Trim
brk
50
Brake Function
Current Value
Decrease
Diagram A
Increase
Grip Lever A
Brake Trim
Grip Lever B
Steering
Dual-Rate Trim
EPA
R/B
Direct Trim Access
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Transmitter
• 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)
R-135 Receiver
• 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
System Features
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Transmitter XR3i
Receiver R-135
Servos Z590M x 1
Z270 x 1
Accessories BEC switch harness with
battery case, servo accessories
(for each servo),
instruction manual
R-135 Receiver
Z270 Servo
Components
Model number XR3i
Encoder 3-channel computer system
RF output 27MHz/75MHz
Modulation FM
Output power 190Mw
Current Drain 180mA
Power source 1.5V x 8 dry cell
(1.2V x 8 Ni-Cd optional)
Output pulse 1000–2000 (1500 neutral)
XR3i Transmitter
Torque 49 ounce inch (@6.0V)
Speed .19 sec/60° (@6.0V)
Weight 1.50 oz
Size (WxLxH) 0.73" x 1.51" x 1.37"
Motor 3-pole ferrite
Torque 85 ounce inch (@6.0V)
Speed .15 sec/60° (@6.0V)
Weight 1.6 oz
Size (WxLxH) 0.73" x 1.55" x .146"
Motor 3-pole ferrite
Model number NER-135
Type 3-channel/FM
ABC&W circuitry
Frequency 27MHz/75MHz
Sensitivity 5qs minimum
(microseconds)
Selectivity 8 KHz/50dB
Weight 1 oz
Size (WxLxH) 1.25" x 1.75" x 0.81"
Receiver Antenna 20"
Power supply 4.8–6.0V DC
Z590M Servo
System Specifications
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Antenna
Steering Wheel
Electronic Digital
Throttle Trim Lever
Dot Matrix
Multi- Data
LCD Display
Three-Character
Name Input
Digital Voltage
Reading
Electronic Digital
Grip Lever A
Electronic Digital
Grip Lever B
Grip Button C
Charge Jack
Power Switch
Scroll Button
= Enter Function
= Clear Function
Channel Button
Increase Button
Decrease Button
Electronic Digital
Steering Trim Lever
Throttle Trigger Adjustable
Steering Tension
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.
Control Identification and Location
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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.
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 swim-
mers, full-size boats and wildlife. Also, watch carefully for
fishing lines that may get tangled in the propeller.
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 non-
certified technician may result in a violation of the FCC rules.
R/C Safety Precautions
Transmitter Crystal Replacement Notice
Crystal
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Charging Jack
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).
Charger Pigtail For Transmitter
Black To Positive
Red To Negative
JR TRANSMITTER CHARGE JACK POLARITY:
Steering Tension Adjustment
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.
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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.
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.
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.
BEC
BEC
Figure A – Connections to BEC receiver with mechanical speed controller. Ni-Cd battery and speed controller
are not included in the radio set.
Figure B – Connections to BEC receiver with electronic speed controller. Ni-Cd battery and speed controller
are not included in the radio set.
To Resistors Mechanical
Speed Control
BEC Connector
Switch
R-135 Receiver
R-135 Z270/Z590M Servos
To Motor
Battery Box
(for use with optional separate
receiver battery power)
7.2V–8.4V Battery
7.2–8.4V Battery
R-135 Receiver
Third Channel
(Optional)
R-135
Z270/Z590M Servo
ESC
To Motor
Third channel
(Optional)
Receiver/Servo Connections and Installation
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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 Mounting Flange
Rubber Grommets
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
Top View
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
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
Operating Your Model
Servo Layout
Key Input and Display
Note: Rubber grommets
and (sometimes) eyelets
are used in fuel-powered
vehicles.
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Normal Display
When the power switch is turned on, the LCD screen will
read as shown below. This screen is referred to as the
Normal Display.
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.
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.)
Low Battery/Lithium Battery Backup
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.
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).
bat
8.9V
md !
10.2V
0
10.2V
bak
ER
LAP
Display Screens
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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.
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.
Model Name Entry
(page 14)
21
Aux
0
Auxiliary Channel 3
Function
(page 16)
frm
F
Frame Rate
(page 15)
md !
1
mdl
1
Model Select
(page 14)
20
clr
1
cpy
2
bc
0
Data Reset
(page 19)
25
Grip Button C
Function
(page 17)
Copy Model Data
(page 20)
26
Accessing the System Mode
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The XR3i has memory for four models. This feature allows
for four different models to be operated with the same trans-
mitter (additional receivers and servos must be purchased
separately) or one model with four 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 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.
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.
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.
Press the Increase
or Decrease keys to
select the desired
model to be used
(1, 2, 3, or 4).
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.
md !
1
Character to
be Adjusted
Current Model
Number
mdl
1
Model Select
Fuction
Current Model
Number
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
Model Select
(System Mode) Model Name Entry (System Mode)
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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.
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
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.
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.
Current
Frame Rate
frm
F
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
Frame Rate Select (System Mode)
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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.
(Factory preset)
00= 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.
LLNN= 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.
22PP= 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 deter-
mined by the End-Point Adjustment function, page 24.
Accessing the Auxiliary
Channel 3 Function
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.
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.
aux
LN
Auxiliary Channel 3
Function
Linear Movement
(fuel mixture servo)
aux
0
Auxiliary Channel 3
Function
Channel 3 is Inhibited
(Grip Dial A braking
function is now
activated)
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
Auxiliary Channel 3 Function Select (System Mode)
4680 JR XR3i manual 7/17/02 12:14 PM Page 16

17
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.
"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)
00= 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.
EEBB= 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 re-
duced the steering rate to make your vehicle easier to drive
but need full steering in an emergency situation such as a
collision.
{Figure 24-Insert new drawing of Grip Button C and Eb value
Callout GBC -
Callout Eb - Indicates
Emergency Steering Button is
activated}
LLAA= 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 27.
{Figure 24-Insert new drawing of Grip Button C and LA value
Callout GBC - Indicates Grip Button C function
Callout LA - Indicates Lap Timer button is activated}
bc
LA
Grip Button
Function
Lap-Timer
bc
0
Grip Button C
Function
Grip Button C is
Inhibited
bc
EB
Grip Button C
Function
Emergency
Steering Button
is Activated
bc
LA
Grip Button C
Function
Lap-Timer Button is
Activated
Grip Button C Function Select (System Mode)
4680 JR XR3i manual 7/17/02 12:14 PM Page 17

INCREASE
CLEAR
DECREASE
SCROLL
ENTER
CHANNEL
18
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.
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
Press the Increase or
Decrease key to
select the desired
Grip Button C
function type to
be used.
4680 JR XR3i manual 7/17/02 12:14 PM Page 18

19
The Data Reset function allows you to reset all the program-
ming 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.
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 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.
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
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
Data Reset (System Mode)
4680 JR XR3i manual 7/17/02 12:14 PM Page 19

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 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
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
2Model being
copied to
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.
Press the Increase and Decrease keys at the
same time to copy model data from the current
model to the selected model.
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
Copy Model Data (System Mode)
4680 JR XR3i manual 7/17/02 12:14 PM Page 20