JR Racing XR2i User manual

2-Channel, 2-Model Memory
AM Computer Racing System
5189 JR XR-2i manual 9/18/02 12:01 PM Page 1

2
KeyInputandDisplay 11
DisplayScreens 12
NormalDisplay 12
LowBattery 12
LithiumBattery 12
MemoryBackup 12
AccessingtheSystemMode 13
ModelSelect 14
ModelNameEntry 14
GripButtonCFuntionSelect 15
DataReset 16
AccessingtheFunctionMode 17
End-PointAdjustment 18
Sub-Trim 19
ServoReversing 20
AccessingtheDirect
TrimMode 21
SteeringTrim 22
ThrottleTrim 23
GripLeverB:SteeringDual-
RateTrimAdjustmentSTG 24
GripLeverA:BrakeEnd-Point
AdjustmentBRK 25
XR2iDataSheets 26
FrequencyChart 27
Warrantyand 27/28
ServiceInformation
Introductionto
XR2iQuickStartSetup 3
DirectTrimAccess 4
SteeringandThrottle/Trim
Adjustment 4
SystemFeatures 5
Transmitter 5
Receiver 5
Servos 5
SystemSpecifications 6
Components 6
Transmitter 6
Receiver 6
Servos 6
ControlIdentification
andLocation 7
RCSafetyPrecautions 8
SteeringTensionAdjustment 9
ChargingJack 9
Receiver/ServoConnections
andInstallation 10
OperatingYourModel 11
ServoLayout 11
Table of Contents
Thank you for purchasing the XR2i 2-channel radio
system. This system has been designed to provide RC
racers with a high-quality, user-friendly radio system
that can be relied upon year after year, race after race.
It is important that you carefully read this manual
before attempting to operate your XR2i 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 down that information on the data
sheet provided. This will insure that in the rare case of
amemoryfailure,youwillnotlosethemodelssetupdata.
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.
Introduction
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3
st
—
REV•NORM
Channel
ST=Steering
TH=Throttle
ServoDirection
st
100
EPA
Adjustmentposition
ST =Steering
TH =Throttle
CurrentValue
XR2i Quick Start Setup
Included in this manual are in-depth instructions
detailing all the steps and procedures needed to
correctly program each of the XR2i'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
XR2i, refer to the appropriate page(s) in this manual
for more detailed programming information.
Servo Reversing End-Point (Travel) Adjustment
1. With the transmitter power switch on, press the
Scroll key to enter the Function mode.
SCROLL
ENTER
CHANNEL
CHANNEL
SCROLL
INCREASE
CLEAR
DECREASE
INCREASE
CLEAR
DECREASE
INCREASE
CLEAR
DECREASE
CHANNEL
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.
1. From the Servo Reverse function, press the Scroll
key once 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.
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4
Direct Trim Access
Steering and Throttle Trim
Adjustment
Steering
1. Withthetransmitterpower switch on, movethedigital
steeringtrimleverin the desired positiontobeadjusted.
Thesteeringtrimvalue screen will appearautomatically.
Throttle
2. Withthetransmitterpower switch on, movethedigital
throttletrimleverin the desired positiontobeadjusted.
Thethrottletrimvalue screen will appearautomatically.
stc
0
TRIM
thc
0
TRIM
SteeringTrim
Function
ThrottleTrim
Function
CurrentValue
brk
50
EPA BrakeFunction
CurrentValue
CurrentValue
R/B
ST.
ThrottleTrim
SteeringTrim
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5
Transmitter
• 2 channels
• AM modulation
• Easy-to-read LCD graphics display
• 2-model memory
• 3-character model name entry
• Electronic digital trim levers for throttle and steering
• Assignable electronic grip lever
• Direct display trim function
• Servo reversing
• Sub-trim
• Steering dual-rate
• Steering end-point adjustment
(two points: left and right)
• Brake/throttle end-point adjustment
• Low-battery alarm
• Plug-in crystals
• Charge jack receptacle (rechargeable batteries not
included; order JRPB958)
R-125 Receiver
• 2 channels
• AM 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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6
Transmitter XR2i
Receiver R-125
Servos Z590Mx1
Z270x1
Accessories BECswitchharnesswith
batterycase,servoaccessories
(foreachservo),
instructionmanual
R-125 Receiver
Z270 Servo
Components
Modelnumber XR2i
Encoder 2-channelcomputersystem
RFoutput 27MHz/75MHz
Modulation AM
Outputpower 195mW
CurrentDrain 150mA
Powersource 1.5Vx8 dry cell
(1.2Vx8Ni-Cd optional)
Outputpulse 1000–2000(1500neutral)
XR2i Transmitter
Torque 49ounceinch(@6.0V)
Speed .19sec/60°(@6.0V)
Weight 1.5oz
Size(WxLxH) 0.73"x1.51" x 1.37"
Motor 3-poleferrite
Torque 85ounceinch(@6.0V)
Speed .15sec/60°(@6.0V)
Weight 1.6oz
Size(WxLxH) 0.73"x1.55" x .146"
Motor 3-poleferrite
Modelnumber NER-125
Type 2-channel/AM
ABC&Wcircuitry
Frequency 27MHz/75MHz
Sensitivity 5qsminimum
(microseconds)
Selectivity 8KHz/50dB
Weight 1oz
Size(WxLxH) 1.25"x1.75" x 0.81"
ReceiverAntenna 20"
Powersupply 4.8–6.0VDC
Z590M Servo
System Specifications
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7
Antenna
ElectronicDigitalSteering
TrimLever
ElectronicDigital
ThrottleLever
MultiData
LCDDisplay
Three-Character
NameInput
DigitalVoltage
Reading
ElectronicDigital
GripLeverA
ElectronicDigital
GripLeverB
PowerSwitch
ChargeJack
ScrollButton
=EnterFunction
=ClearFunction
ChannelButton
DecreaseButton
IncreaseButton
SteeringTension(Adjustable)
SteeringWheel
withFoamGrip
ThrottleTrigger
(Adjustable)
GripButtonC
BatteryCover*
(8“AA„BatteriesRequired)
*To remove the 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 the transmitter voltage fails to
register, check for correct battery installation and voltage.
Control Identification and Location
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8
RC Safety Precautions
Transmitter Crystal Replacement Notice
For safe and reliable performance of your RC model,
please carefully read and follow the guidelines below.
1. Radio control models are not toys. They are
capable of inflicting serious injury to people and
property. Use caution at all times when operating
your model.
2. You are responsible for the safe operation of your
RC model. You must properly install, test and
operate your model with a clear sense of that
responsibility. Do not take risks that might
endanger yourself or others.
3. Running an RC car in the streets is very dangerous
to both drivers and models. Avoid running your
model in areas occupied by full-size automobiles.
To locate areas where you can safely operate your
model, contact your local hobby shop for RC tracks
or clubs in your area.
4. When running an RC boat, keep it away from any
swimmers, full-size boats and wildlife. Also, watch
carefully for fishing lines that may get tangled in
the propeller.
5. Before operating your model, make sure your
frequency is clear. If someone else is operating on
the same frequency, both models will go out of
control, possibly causing damage to the models, as
well as others.
6. If at any time while operating your RC model you
sense abnormal model functioning, end your
operation immediately. Do not operate your model
again until you are certain the problem has
been corrected.
Caution: Control of your model is impossible
without sufficient voltage for the transmitter and
receiver. A weak transmitter battery will decrease
your range of operation, and a weak receiver bat-
tery 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.
The Federal Communications Commission (FCC)
requires that changes in transmitter frequency
must be performed only by an authorized service
technician(Horizon ServiceCenter). Anytransmitter
frequency changes made by a non-certified
technician may result in a violation of FCC rules.
Crystal
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9
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 increas- es the steering tension.
Charger Pigtail For Transmitter
Black To Positive
Red To Negative
JR TRANSMITTER CHARGE JACK POLARITY:
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 XR2i is equipped with Ni-Cd batteries
(JRPB958, available separately).
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10
Receiver/Servo Connections and Installation
Your R-125 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 toBECreceiverwithmechanicalspeed controller. Ni-Cd batteryandspeedcontroller
arenotincludedin the radio set.
Figure B – Connections toBECreceiverwithelectronicspeed controller. Ni-Cd batteryandspeedcontroller
arenotincludedin the radio set.
ToResistors Mechanical
SpeedControl
BECConnector
Switch
R-125Receiver
R-125 Z270/Z590MServos
ToMotor
BatteryBox
(forusewithoptional separate
receiverbatterypower)
7.2V–8.4VBattery
7.2–8.4VBattery
R-125Receiver
ThirdChannel
(Optional)
R-125
Z270/Z590MServo
ESC
ToMotor
Thirdchannel
(Optional)
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11
Operating Your Model
Servo Layout
It’s important to learn the proper sequence for
switching on/off your radio system.
Before Operation
Switch on the transmitter, then the receiver.
After Operation
Switch off the receiver, then the transmitter. This
ensures that you will always have a signal to the
receiver and that your RC model will not operate out
of control when you turn off the transmitter.
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
ToentertheFunction mode, press theScrollkey
whilethetransmitteris on. Press the IncreaseandDecreasekeys
simultaneouslytoclearthe screen or return
tofactorypreset.
ToentertheSystem mode, press theScroll
andChannelkeyssimultaneously and hold
whileturningonthe transmitter.
KEY
SCROLL
CHANNEL
INCREASE
DECREASE
Movesupthroughthe available functions
Selectsthedesiredchannel
Increasesthevalueof the selected function
Decreasesthevalueof the selected function
USE
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
Key Input and Display
Note: Rubber grommets
and (sometimes) eyelets
are used in fuel-powered
vehicles.
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12
Display Screens
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 21
of this manual.
Low Battery/Lithium Battery Backup
When the voltage of the 8 "AA" batteries drops below
9.0V, the XR2i's display screen will alternate between
the Normal and Low-Battery screen (BAT) and a con-
tinuous 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 XR2i 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 28).
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 XR2i
transmitter be returned to the Horizon Service Center
for servicing (see Warranty Information page 27).
bat
8.9V
bak
ER
md !
10.2V
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13
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,
Grip button C function or the Data Reset 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 immedi-
ately 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.
ModelNameEntry
(page14)
21
md !
1
mdl
1
ModelSelect
(page14)
20
clr
1
gbc
0
DataReset
(page16)
25
GripButtonC
Function
(page15)
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14
Model Name Entry
(System Mode)
Model Select
(System Mode)
The XR2i has memory for two models. This feature
allows for two different models to be operated with
the same transmitter (additional receivers and servos
must be purchased separately) or one model with
two 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 or 2).
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.
md !
1
Characterto
beAdjusted
CurrentModel
Number
mdl
1
ModelSelect
Fuction
CurrentModel
Number
Pressandholdthe
ScrollandChannelkeys
atthesametime while
turningtransmitter
powerswitchon.
PresstheIncrease
orDecreasekeysto
selectthedesired
modeltobeused
(1or2).
Pressandholdthe Scroll
andChannelkeysat the
sametimewhileturning
transmitterpowerswitch
on.Next,pressthe Scroll
keyuntiltheflashing
“M”appears.
PresstheChannel
keytoselectthe
charactertobe
changed.
PresstheIncreaseor
Decreasekeysto
selectthecorrect
letter/numbertobeused.
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
The XR2i allows a three-character name to be input
for each of the two 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
correctletter/number for thefirst character (flashing).
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 Grip Button
C 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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15
Grip Button C Function Select (System Mode)
The Grip Button C function of the XR2i allows you to
select from 2 different functions available. Use the
information below to select the correct Grip Button C
assignment for your particular installation.
0 = The 0, or off function, is the default setting and
does not assign a function to Grip Button C.
Eb = The Eb or Emergency Steering Button function is
designed to override the value of Grip Dial B and pro-
vide 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.
Accessing the Grip Button C Function
1. Press the Scroll and Channel keys at the same time
and hold.
2. Turn on the transmitter power switch to enter
System mode.
3. Press the Scroll key until "GBC" appears on
the screen.
4. Press the Increase or Decrease key to select the
correct Grip Button C function type to be used.
5. Press the Scroll key to access the Data Reset
function.
6. To exit the System mode, either turn the
transmitter power switch off or press the Scroll and
Channel keys at the same time.
gbc
0
GripButtonC
Function
GripButtonCis
Inhibited
gbc
EB
GripButtonC
Function
Emergency
SteeringButton
isActivated
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16
Data Reset (System Mode)
The Data Reset function allows you to reset all the
programming in the selected model (1 or 2) 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 or 2) 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 or 2) 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
1Modelto
beReset
Pressandholdthe Scroll
andChannelkeysat the
sametimewhileturning
thetransmitterpower
switchon.Next,press
theScrollkeyuntil
“CLR”appears.
PresstheIncreaseand Decrease keys atthe
sametimetoreset (clear) all settingsforthe
selectedmodeltothe factory default settings
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
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17
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 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.
sts
0
TRIM
st
100
EPA
ths
0
TRIM
st SB-TRM
Channel
Key
Channel
Key
Channel
Key
Sub-Trim
(page19)
ServoReversing
(page20)
—
REV•NORM
—
REV•NORM
R/B
L/F
th
100
EPA Channel
Key
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18
End-Point Adjustment (Function Mode)
The End-Point Adjustment feature of the XR2i allows
the maximum travel of both the steering and throttle
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.
L/F
st
100
EPA
R/B
st
100
EPA
SteeringLeft
End-PointAdjustment
CurrentValue
Values:0to125
Clear=100
SteeringRight
End-PointAdjustment
CurrentValue
Values:0to125
Clear=100
L/F
th
100
EPA
R/B
th
100
EPA
ForwardThrottle
End-PointAdjustment
CurrentValue
Values:0to125
Clear=100
BackwardThrottle(Brake)
End-PointAdjustment
CurrentValue
Values:0to125
Clear=100
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19
Accessing The End-Point
Adjustment Function
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)
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 travel. Move the
wheel or trigger in the opposite direction to adjust
the travel in the opposite direction.
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.
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.
Sub-Trim (Function Mode)
PresstheScrollkey
until"EPA"appearson
thescreen
PresstheChannelkey
toselectthechannel to
beadjusted
Movethewheel/triggeror Grip Button Cinthedesireddirectionandpress
eithertheIncreaseor Decrease keys toachievethedesiredtravelvalue
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
The Sub-Trim function of the XR2i is an electronic
trimming feature that allows the neutral position of
the servo on either the steering or throttle channel to
be moved, while allowing the electronic trim lever for
that channel to remain in the center position. This fea-
ture 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.
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.
Accessing the Sub-Trim Function
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.
sts
0
TRIM
CurrentChannel
STS=Steering
THS=Throttle
AUS=Auxiliary
Channel3
CurrentValue
PresstheChannelkey
toselectthedesired
channeltobeadjusted.
STS=Steering
THS=Throttle
AUS=Auxiliary
Channel3
PresstheScrollkey
until"TRIM"appears
onthescreen.
PresstheIncreaseor Decrease keys toachieve
thedesiredSub-TrimValue.
Values:R/B125 0 R/F125
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
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20
Servo Reversing (Function Mode)
The Servo Reversing feature of the XR2i is a very con-
venient 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 and throttle of
the XR2i.
Accessing the Servo
Reversing Function
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).
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.
CurrentChannel
ST=Steering
TH=Throttle
AUX=Auxiliary
Channel3
CurrentServo
Direction
st
—
REV•NORM
PresstheChannelkey
toselectthedesired
channeltobeadjusted.
STS=Steering
THS=Throttle
AUX=Auxiliary
Channel3
PresstheModekey
until“REV.NORM”
appearsonthescreen.
PresstheIncreaseor Decrease keys tomove
thecursortothe desired servo direction.
SCROLL
ENTER
CHANNEL
INCREASE
CLEAR
DECREASE
5189 JR XR-2i manual 9/18/02 12:01 PM Page 20