JR XF421EX Manual Download Page 27

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XF421EX MANUAL • WARRANTY AND SERVICE IMFORMATION

Important 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 AND SERVICE INFORMATION

WARRANTY COVERAGE

REPAIR SERVICE INSTRUCTIONS

Your new JR Remote Control Radio System is
warranted to the original purchaser against
manufacturer defects in material and workmanship
for one year 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 which 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. 

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.

2. Return your system components only (transmitter,

receiver, servos, etc). Do not return your system
installed in a model aircraft.

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.

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 your name, mailing address, and 

a phone

number where you can be reached during the
business day.

6. 

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.

7. 

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.

Within your letter, advise us of the payment method
you prefer to use. Horizon Service Center accepts
VISA or MasterCard. Include your card number and
expiration date. Horizon Service Center also accepts
money orders.

Mail your system to:

Horizon Service Center

4105 Fieldstone Road
Champaign, IL 61822
Phone: (217) 355-9511
www.horizonhobby.com

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Summary of Contents for XF421EX

Page 1: ...5 CHANNEL COMPUTER RADIO...

Page 2: ......

Page 3: ...22 7 1 Servo Reversing 22 7 2 Sub Trim 23 7 3 Travel Adjustment 24 8 Data Sheet 25 III IMPORTANT INFORMATION 1 General Notes 26 2 Daily Flight Checks 26 3 Warranty Coverage 27 4 Repair Service Instruc...

Page 4: ...on to scroll quickly or press and release to scroll in steps Flaperons mixing Delta wing mixing V tail mixing R600 Receiver The R600 s extremely compact size allows it to fit easily in limited spaces...

Page 5: ...nt drain Ball bearing supported ouput shaft An indirect drive feedback potentiometer gives additional protection from vibration SERVO FEATURES 2 3 SERVO LAYOUT 2 4 Servo Mounting Flange Rubber Grommet...

Page 6: ...S Mini Switch 12 Aileron Extension Servo Accessories Instruction Manual TYPE AIRPLANE MODEL NUMBER XF421EX ENCODER 5 Channel Computer System RF 50 53 72 MHz MODULATION PPM FM OUTPUT POWER Approximatel...

Page 7: ...Y Microseconds 5 s Minimum SELECTIVITY 8KHz 50dB WEIGHT oz 1 oz SIZE in W x L x H 1 43 x 2 06 x 55 RECEIVER ANTENNA 39 For All Aircraft Frequencies TYPE R600 FM MODEL NUMBER NEC 211 INPUT VOLTAGE AC 1...

Page 8: ...charge leave the charger and batteries hooked up for 20 24 hours in order to fully charge both battery packs to peak capacity For subsequent charges leave the charger and batteries hooked up overnigh...

Page 9: ...st all the control functions on your aircraft with the master radio 5 Push the trainer button on the master transmitter and check all the control functions with the slave radio INTRODUCTION 5 Trainer...

Page 10: ...le stick is less than half throttle This gives easy accurate idle adjustments without affecting the high throttle position RECEIVER CHANNEL ASSIGNMENT TRANSMITTER THROTTLE ALT 1 2 GEAR SWITCH INPUT KE...

Page 11: ...TROL STICK LENGTH ADJUSTMENT 1 4 LOOSEN TIGHTEN SET SCREW CHAPTER 1 Transmitter Controls continued TRANSMITTER REAR 1 3 Note Your transmitter has a 5 year lithium battery to protect your pre programme...

Page 12: ...0mAh from your transmitter battery pack Instead you will only draw 70mAh when using the DSC function Note You will need to purchase separately both the DSC cord JRPA132 and the JR Deluxe Switch Harnes...

Page 13: ...lling servo output arms make sure the servo is in its neutral position 6 In the case of gas powered model aircraft mount the receiver power switch on the side of the fuselage opposite the muffler to p...

Page 14: ...r 8 beeps These warnings mean you should land your aircraft immediately Note During the period that the battery alarm is flashing the input buttons will not function If you are currently in the functi...

Page 15: ...atures two type of programming paths System Setup Mode includes programming functions that are initially adjusted when the model is first set up like selecting wing type or the model and is seldom acc...

Page 16: ...opriate channel Use the INCREASE and DECREASE buttons to adjust the values displayed on the screen CHAPTER 5 Input Mode and Functions continued FUNCTION MODE 5 3 THR REV NORM SERVO REVERSING Page 23 S...

Page 17: ...ion and select the desired model number 1 or 2 for which you want to reprogram to the factory settings The model selection function is described in Section 6 2 1 Press the SCROLL and INCR buttons up s...

Page 18: ...el number 1 OR 2 5 Press the SCROLL button to access the wing type entry function 6 To exit press the SCROLL and INCR buttons up simultaneously Accessing the Model Selection Function MODEL SELECTION S...

Page 19: ...of the channels Use sub trims for individual neutral adjustment V Tail V Tail mixing requires two servos Connect the left tail servo to channel 3 Elev and the right tail servo to channel 4 Rudd in the...

Page 20: ...MIX To Activate V Tail VTL Mixing Note It is also possible to activate both the flaperon FPR and V tail functions VTL to work simultaneously WING TYPE SELECTION System Mode continued 6 3 TRAINER SCROL...

Page 21: ...ation select function 7 To exit press the SCROLL and INCR buttons up simultaneously Accessing the Model Name Entry Function Press the CHANNEL button to select the character to be changed flashing Pres...

Page 22: ...n 4 Press the CHANNEL button until the desired channel appears on the screen 5 Press the INCREASE or DECREASE button to change the servo direction 6 Press the SCROLL button to access the sub trim func...

Page 23: ...lows the same mechanical trim lever settings between the two models you can control with this radio system Sub trim can also allow additional trim travel when mechanical trims do not provide enough mo...

Page 24: ...the desired channel appears on the screen 5 Move the selected channel stick or switch in the direction that you want to adjust the travel Press the INCR or DECR button to achieve the desired travel M...

Page 25: ...8 Data Sheet 8 NORM NORM NORM NORM NORM REV REV REV REV REV SUB TRIM TRAVEL ADJUST TRV ADJ REVERSE SW CHANNELS THRO 1 AIL 2 ELE 3 RUDD 4 GER 5 WING TYPE V TAIL ON OFF NORM FLAPERON DELTA Model Number...

Page 26: ...an use a given frequency at a time It does not matter if it is AM FM or PCM only one frequency at a time Do not point the transmitter antenna directly toward the model The radiation pattern from the t...

Page 27: ...n your system components only transmitter receiver servos etc Do not return your system installed in a model aircraft 3 Preferably use the original carton packaging molded foam container or equivalent...

Page 28: ...72 570 40 72 590 41 72 610 42 72 630 43 72 650 44 72 670 45 72 690 46 72 710 47 72 730 48 72 750 49 72 770 50 72 790 51 72 810 52 72 830 53 72 850 54 72 870 55 72 890 56 72 910 57 72 930 58 72 950 59...

Page 29: ...NOTES...

Page 30: ...NOTES...

Page 31: ......

Page 32: ...DISTRIBUTED EXCLUSIVELY BY HORIZON HOBBY DISTRIBUTORS CHAMPAIGN IL 61822 www horizonhobby com 1999 Horizon Hobby Distributors Inc All Rights Reserved...

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