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Table of Contents
Related Manuals for JR XF421EX
Summary of Contents for JR XF421EX
- Page 1 5-CHANNEL COMPUTER RADIO...
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Page 3: Table Of Contents
5. Frequency Chart Neck Strap Attachment INTRODUCTION TO THE XF421EX RADIO SYSTEM Thank you for purchasing the JR XF421EX 5-Channel Radio It’s important that you carefully read this manual before System. This unit has been designed to provide the attempting to operate your system. Please pay particular modeler with a high quality, user friendly radio system attention to Page 9, Introduction 4.2 Charging Your... -
Page 4: Using This Manual
R600’s band width when • The R600 is compatible with all JR FM- the receiver is on and the transmitter is off. The transmitting radios. XF421EX MANUAL • INTRODUCTION 1: Using This Manual / INTRODUCTION 2: Features... -
Page 5: Servo Features
• Low current drain. SERVO LAYOUT Servo Arm Retaining Screw Servo Mounting Flange Servo Arm/Horn Servo Output Shaft Rubber Grommets Servo Case Servo Eyelet Servo Lead w/Connector Servo Mounting Flange Rubber Grommets Top View XF421EX MANUAL • INTRODUCTION 2: Features... -
Page 6: Specifications
1.2Vx8 Nicad (9.6V) 600mah OUTPUT PULSE 1000-2000 (1500 Neutral) SERVO SPECIFICATIONS TYPE 517BB TORQUE (oz./in.) 40.3 SPEED (sec.) WEIGHT (oz.) 1.47 SIZE (in.) (W x L x H) 0.73 x 1.52 x 1.32 MOTOR 3-Pole Ferite XF421EX MANUAL • INTRODUCTION 3: Specifications... -
Page 7: Receiver Specifications
AC 100-120V OUTPUT CURRENT 50mAh Tx/50mAh Rx CHARGING TIME 15 Hours AIRBORNE BATTERY PACK TYPE AIRPLANE MODEL NUMBER 4N-600 VOLTAGE 4.8V SIZE (in.) (W x L x H) 2.24 x 0.59 x 2.05 WEIGHT (oz.) XF421EX MANUAL • INTRODUCTION 3: Specifications... -
Page 8: Battery Charging
600mAh battery pack. OUTSIDE IS POSITIVE Transmitter Only CHARGER PIGTAIL FOR TRANSMITTER The center pin on all JR remote control systems is BLACK TO POSITIVE negative. Therefore, the center pin on all JR chargers is negative, not positive. This is different from any other manufacturers’... -
Page 9: Trainer System
The XF421EX features a built-in trainer system. The all other current JR radios that have built-in trainer transmitter can be used as either a master (trainer) or systems. An optional trainer cord is needed as a slave (trainee). The XF421EX is compatible with (JRPA130). TRAINER D.S.C. -
Page 10: Transmitter Controls
3. ELEV Elevator Channel trim active only when the throttle stick is less than 4. RUDD Rudder Channel half throttle. This gives easy, accurate idle 5. GEAR Gear Channel adjustments without affecting the high throttle position. XF421EX MANUAL • CHAPTER 1: Transmitter Controls... -
Page 11: Transmitter Rear
Counterclockwise will lengthen the stick and clockwise will shorten it. After the control stick(s) has LOOSEN been adjusted to suit your flying style, tighten the set screw. TIGHTEN XF421EX MANUAL • CHAPTER 1: Transmitter Controls... -
Page 12: Direct Servo Control (Dsc)
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 Harness (JRPA001) to make use of the XP652 DSC function. -
Page 13: Connections
ELEVATOR GEAR GEAR ABC&W INTERFERENCE PROTECTION SYSTEM RUDD RUDD ELEV ELEV NER-226X A I L E AILE JAPAN REMOTE CONTROL CO., LTD THRO THRO MADE IN JAPAN R600 RECEIVER 226X RECEIVER AILERON ANTENNA THROTTLE XF421EX MANUAL • CHAPTER 2: Connections... -
Page 14: Key Input And Display
If you are currently in the function mode, the transmitter will exit automatically and return to the normal display (see Section 5.1). XF421EX MANUAL • CHAPTER 3: Key Input and Display / CHAPTER 4: Battery Alarm and Display... -
Page 15: Input Mode And Functions
SERVO REVERSING and is seldom accessed after the initial set up. SUB-TRIM System Modes include: TRAVEL ADJUST MODEL RESET MODEL SELECT WING TYPE MIXING V-TAIL MIXING MODEL NAME XF421EX MANUAL • CHAPTER 5: Input Mode and Functions... -
Page 16: System Mode
T H R TRAINER AUX.CH. SCROLL ENTER ENTER + INCR REV•NORM - DECR CHANNEL To enter Function Mode turn on the Power Switch Power Switch and then press both programming buttons up XF421EX MANUAL • CHAPTER 5: Input Mode and Functions... -
Page 17: Functions (System Mode)
3. Press the SCROLL button up until RST appears select function. on the screen. 6. To exit, press the SCROLL and +INCR buttons 4. Press the CHANNEL and INCREASE buttons up simultaneously. simultaneously to reset the data. (To confirm that XF421EX MANUAL • CHAPTER 6: Functions (System Mode) -
Page 18: Model Selection
5. Press the SCROLL button to access the wing type System Mode. entry function. 3. Press the SCROLL button until MDL 6. To exit, press the SCROLL and +INCR buttons appears on the screen. up simultaneously. XF421EX MANUAL • CHAPTER 6: Functions (System Mode) -
Page 19: Wing Type Selection
Delta Wing Mixing Delta, or elevon mixing as it is commonly known, is Flaperon Setup the final wing mixing selection in your XF421EX. This When using flaperon mixing, two servos (one for style of aircraft also employs two wing servos. - Page 20 V-tail mixing screen on the screen -DECR buttons once to activate Note: It is also possible to activate both the flaperon (FPR) V-tail mixing and V-tail functions (VTL) to work simultaneously. XF421EX MANUAL • CHAPTER 6: Functions (System Mode)
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Page 21: Model Name Entry
MODEL NAME ENTRY System Mode • The XF421EX allows a 3 digit name to be input for is useful to help identify different aircraft types or each of the 2 models available. The current model model setups. will be displayed in the normal display. This feature... -
Page 22: Functions (Function Mode)
3. Press the SCROLL button until REV NORM function. appears on the screen. 7. To exit, press the SCROLL and +INCR buttons 4. Press the CHANNEL button until the desired up simultaneously. channel appears on the screen. XF421EX MANUAL • CHAPTER 7: Functions (Function Mode) -
Page 23: Sub-Trim
3. Press the SCROLL button until SB-Trim appears adjustment function. on the screen. 7. To exit, press the SCROLL and +INCR buttons 4. Press the CHANNEL button until the desired up simultaneously. channel appears on the screen. XF421EX MANUAL • CHAPTER 7: Functions (Function Mode) -
Page 24: Travel Adjustment
Reverse function. 5. Move the selected channel stick or switch in the 8. To exit, press the SCROLL and +INCR buttons direction that you want to adjust the travel. Press up simultaneously. XF421EX MANUAL • CHAPTER 7: Functions (Function Mode) -
Page 25: Data Sheet
RUDD (4) GER (5) NORM NORM NORM NORM NORM REVERSE SW • • • • • SUB TRIM TRAVEL ADJUST (TRV ADJ.) NORM • FLAPERON WING TYPE • DELTA ON • OFF V-TAIL XF421EX MANUAL • CHAPTER 8: Data Sheet... -
Page 26: Important Information
4. Perform a ground range check before each day’s harness plugs are secured in the receiver. Also, flying session. The range check should be as make sure that the switch harness moves follows: completely in both directions. XF421EX MANUAL • IMPORTANT INFORMATION... -
Page 27: Warranty Coverage
This warranty does not apply to any unit which has been improperly installed, mishandled, abused, or REPAIR SERVICE INSTRUCTIONS In the event that your JR radio needs service, please 5. Include your name, mailing address, and a phone follow the instructions listed below: number where you can be reached during the business day. -
Page 28: Frequency Chart
53.200 Black/Red 72.390 72.810 53.300 Black/Orange 72.410 72.830 53.400 Black/Yellow 72.430 72.850 53.500 Black/Green 72.450 72.870 53.600 Black/Blue 72.470 72.890 53.700 Black/Purple 72.490 72.910 53.800 Black/Gray 72.930 72.950 72.970 72.990 *Channels 11–14 are not available XF421EX MANUAL • FREQUENCY CHART... - Page 29 NOTES...
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