Horizon Hobby XR2i Manual Download Page 15

 
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. 
 

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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. 
 
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. 
 
If the Emergency Steering button function (page __) 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. 

 
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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 

Summary of Contents for XR2i

Page 1: ...m Specifications Components Transmitter Receiver Servos Control Identification and Location R C Safety Precautions Steering Tension Adjustment Charging Jack Receiver Servo Connections and Installation...

Page 2: ...at 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 quick...

Page 3: ...igger for brake adjustment 6 Press the Increase or Decrease keys to select the desired travel value page break___________ _____ _____ ______ _______________ Direct Trim Access Servo Trim Adjustment St...

Page 4: ...dback potentiometer for additional vibration protection Surface Mount Technology SMT Z270 Servo Low current drain Indirect drive feedback potentiometer for additional vibration protection Surface Moun...

Page 5: ...ervo 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 Z590M Servo Torque 85 ounce inch 6 0V Speed 15 sec 60 6 0V Weight 1 6 oz Size WxLx...

Page 6: ...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...

Page 7: ...vo 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 addit...

Page 8: ...out of control when you turn off the transmitter Servo Layout Note Rubber grommets and sometimes eyelets are used in fuel powered vehicles Key Input and Display page break___________ _____ _____ _____...

Page 9: ...r 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...

Page 10: ...the Increase or Decrease keys to select the correct letter number for the first character flashing 5 To change the remaining two characters press the Channel key until the desired character to be cha...

Page 11: ...ncrease 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...

Page 12: ...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 th...

Page 13: ...Function mode either turn off the transmitter power switch or press the Scroll and Channel keys at the same time page break___________ _____ _____ ______ _______________ Servo Reversing Function Mode...

Page 14: ...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 over ri...

Page 15: ...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 If the Emergency Steering button functi...

Page 16: ...L NUMBER 1 2 MODEL NAME GRIP BUTTON C O Eb Function Mode STEERING THROTTLE END POINT ADJUSTMENT L__________ R__________ F__________ B__________ SUB TRIM SERVO REVERSING REV NORM REV NORM Direct Mode T...

Page 17: ...75 870 84 75 890 85 75 910 86 75 930 87 75 950 88 75 970 89 75 990 90 FREQUENCY CHART Transmitter Crystal Replacement Notice The Federal Communications Commission FCC requires that changes in transmi...

Page 18: ...pair 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...

Page 19: ...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...

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