Horizon Hobby X378 User Manual

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Page 1

X-378

7-CHANNEL COMPUTER

RADIO SYSTEM

INSTRUCTION MANUAL FOR AIRPLANE, HELICOPTER AND SAILPLANE

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Page 2

X-378 MANUAL Table of Contents

T ABLE OF CONTENTS

I. INTRODUCTION

Table of Contents 2

1. Using The Manual 4

2. Features 4

2.1 Transmitter 4

2.2 Receiver 4

2.3 Servo Features 5

3. Componenet Specifications

3.1 System Specifications 5

3.2 Transmitter Specifications 5

3.3 Servo Specifications 6

3.4 Receiver Specifications 6

3.5 Charger Specifications 6

3.6 Airborne Battery Pack 6

4. Battery Charging 7

4.1 Transmitter/Receiver 7

4.2 Charger 7

4.3 Advanced Digital Trims 8

II. AIRPLANE SECTION

1. Software Funtions

1.1 Control Identification and Location 9

1.2 Channel Assignment/Throttle ALT 9

A. Airplane Version Transmitter 9 B. Sailplane Mode 10 C. Heli Mode 10

1.3 Transmitter Rear 11

1.4 Control Stick Length Adjustment 12

1.5 Control Stick Tension Adjustment 12

1.6 Direct Servo Control 12

1.7 Neck Strap Attachment 13

1.8 Base Loaded Antenna 13

1.9 Frequency Notes/Aircraft Only Frequencies 13

2. Connections

2.1 Installation Requirements 14

2.2 Connections 14

3. Mode Input an Function 15

4. Alarm and Error Display 15

4.1 Battery Alarm and Display 15

4.2 Backup Error Display 15

5. System Mode Function 16

5.1 Normal Display 16

5.2 Direct Access Digital Trims 16

5.3 System Mode 17

5.4 Model Selection/Copy Select 18

5.5 Model Name Entry 20

5.6 Model Type Selection 21

5.7 Data Reset 22

5.8 Modulation Select 23

5.9 Data Transfer 24

5.10 Trim Step 25

5.11 Throttle Cut Switch 26

5.12 Wing Type Selection 27

5.13 Aux 2/Spoiler Channel Input Select 30

6. Function Mode

6.2 Servo Reversing 31

6.3 Dual-Rates 33

6.4 Exponential 35

6.5 Sub Trim 38

6.6 Travel Adjust 39

6.7 Elevator-toFlap Mixing 40

6.8 Aileron-to-Rudder Mixing 42

6.9 Mode Function 44

6.10 Snap Roll Function 46

6.11 Differential Aileron Mixing 48

6.12 Landing Attitude 50

6.13 Programmable Mixing 51

6.14 Fail Safe/Hold 55

6.15 Trainer System 59

6.16 Timer Function 62

7. Practical Applications 64

7.1 Programmable Mixing Options 64

8. Data Sheet 65

III. HELICOPTER

1. Transmitter Controls 66

1.1 Control Identification and Location 66 A. Helicopter Version Transmitter 66

1.2 Channel Assignment/Receiver

1.3 Transmitter Rear 68

1.4 Control Stick Length Adjustment 69

1.5 Control Stick Tension Adjustment 69

1.6 DSC Cord 69

1.7 Neck Strap Attachment 70

1.8 Base Loaded Antenna 70

1.9 Frequency Notes/Aircraft Only Frequencies 70

2. Connections 71

2.1 Installation Requirements 71

2.2 Connections 71

3. Key Input and Display 72

4. Alarm and Error Display 72

4.1 Battery Alarm and Display 72

4.2 Backup Error Display 72

5. System Mode 73

5.1 Normal Display 73

5.2 System Mode 73

5.3 Function Mode 74

5.4 Model Selection/Model Copy Select 75

5.5 Model Name Entry 77

5.6 Model Type Selection 78

5.7 Data Rest 79

5.8 Modulation Select 80

5.9 Data Transfer 81

5.10 Trim Step 84

5.11 Throttle Cut Switch Activation 85

5.12 Aux/Gear Function Select 86

5.13 Swashplate Type 87

6. Function Mode 88

6.1 Function Mode 88

6.2 Servo Reversing 89

6.3 Dual-Rates 90

6.4 Exponential 92

6.5 Sub Trim 93

6.6 Travel Adjust 94

6.7 CCPM Swashplate Mixing 95

6.8 Throttle Hold 97

6.9 Throttle Curve 98

6.10 Pitch Curves 101

6.11 Inverted Switch 103

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X-378 MANUAL Table of Contents

T ABLE OF CONTENTS

6.12 Revolution Mixing 104

6.13 Gyro Gain Function 106

6.14 Programmable Mixing 110

6.15 PCM Fail-Safe/Hold Function 114

6.16 Trainer System 117

6.17 Timer Function 119

7. Data Sheet 121

IV. SAILPLANE

1. Transmitter Controls

1.1 Control Identification and Location 122 A. Glider Version Tx 122 B. Airplane Mode 123 C. Heli Mode 123

1.2 Channel Assignment/Throttle ALT 123

1.3 Transmitter Rear 124

1.4 Control Stick Length Adjustment 125

1.5 Control Stick Tension Adjustment 125

1.6 DSC Cord 125

1.7 Neck Strap Adjustment 126

1.8 Base Loaded Antenna 126

1.9 Frequency Notes/Aircraft Only Frequencies 126

2. Connections

2.1 Installation Requirements 127

2.2 Connections 127

3. Key Input and Display 128

4. Alarm and Error Display 128

4.1 Battery Alarm and Display 128

4.2 Back-Up Error Display 128

5. System Mode 128

5.1 Normal Display 128

5.2 Model Setup Mode 129

5.3 Function Mode 130

5.4 Model Selection/Model Copy Select 131

5.5 Model Name Entry 133

5.6 Model Type Selection 134

5.7 Data Rest 135

5.8 Modulation Select 136

5.9 Data Transfer Function 137

5.10 Trim Step 140

5.11 V-Tail/Dual Flap Wing Mixing 141

5.12 Flap Switch Select Function 143

6. Function Mode

6.1 Function Mode 144

6.2 Servo Reversing 145

6.3 Dual Rates 146

6.4 Exponential 148

6.5 Sub Trim 149

6.6 Travel Adjust 150

6.7 Elevator-to-Flap Mixing 151

6.8 Aileron-to-Flap Mixing 153

6.9 Differential Aileron Mixing 155

6.10 Flap to Elevator Mixing 156

6.11 Flap-to-Aileron Mixing 159

6.12 Aileron-to-Rudder Mixing 162

6.13 Crow/Camber Mixing 164

6.14 Dual-Flap Trim 166

6.15 Programmable Mixing 1-6 167

6.16 Fail-Safe/Hold Function (PCM Only) 171

6.17 Trainer System 175

6.18 Timer Function 177

7. Practical Applications 179

7.1 X-378 Program 179

8. Data Sheets 184

V. IMPORTANT INFORMATION

1. Servo Precautions 185

2. General Notes 185

3. Federal Aviation Administration 186

4. Daily Flight Checks 186

5. Frequency Chart 187

6. Warranty Information 188

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X-378 MANUAL Introduction

In the beginning of this manual you will find the specifications for the radio and its various accessories. In addition, guidelines for the initial installation of the accessories have been included, as well as instructions for setting all the functions and programs of the X-378 to suit your personal preferences. These features are discussed in the same order that they will appear on your radio, as you will see on the accompanying charts. An explanation of the use and purpose of each feature is provided, followed by a labeled illustration of its respective LCD display.

In addition, a step-by-step example clarify the setup procedure of the feature. Practical applications for many of the radio’s features enable you to see their true purpose and additional possibilities. A blank data sheet has been included at the end of each

section. Once all data has been input for a particular model, it is highly recommended that you record it on a copy of the sheet provided. If you should experience memory loss or battery failure or want to make changes to the current settings, this step will save you a great deal of time. Following the data sheet, you will find information on precautionary measures and general guidelines for safe use of your new equipment.

Use of the Instructions with the Radio

While the X-378 has a dedicated or single-use switch layout, it may be used for multiple model types. Templates have been provided in this manual that explain the different switch assignments when using the transmitter with the various air, heli and sailplane software.

The computer designed, ergonomically styled transmitter case ensures a good, comfortable fit in your hands. The ultra-precision control sticks offer adjustable spring tensions and length. The throttle stick offers a ratchet in Airplane configuration for smooth travel. 8-model memory storage allows programming of all characteristics of eight separate helicopters, airplane or gliders; you can program more than one setup for a single aircraft, allowing you to instantly change the flight characteristics.

A five-year lithium backup battery prevents loss of memory in the event that the battery discharges completely or is removed.

Features include automatic fail-safe "set" and information update in PCM mode when fail-safe is used. A programmable trainer function allows the student to practice individual channels separately. Direct Servo Control (DSC) permits operation of all the controls and servos without generating a radio signal.

CHAPTER 1: USING THIS MANUAL • Introduction

CHAPTER 2: FEA TURES

USING THIS MANUAL

X-378 TRANSMITTER

2.1

NER-700 (FM Systems)

The R700’s is a high-performance FM or singleconversion receiver with 10KHz super narrow band ABC&W circuitry.

A narrow band ceramic filter for high-signal selectivity assists in rejecting cross modulations

from other common radio frequencies-e.g., R/C transmitters, local paging systems. This receiver features Direct Servo Control (DSC) for control of surfaces without radio frequency output. The receiver has low current consumption. The R700's Slimline design allows it to fit into most model applications.

R700 RECIEVER

2.2

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X-378 MANUAL Introduction

CHAPTER 3: COMPONENT SPECIFICA TIONS

537 Servo

• Wide spaced ball bearing for precise movement of your aircraft control outputs

• A zero deadband amplifier insures accurate neutral centering

• Low current drain

• Indirect drive feedback potentiometer gives additional protection from vibration

• 3-pole ferrite cored motor

S537 BALL BEARING SERVOS

2.3

SYSTEM SPECIFICATIONS

3.1

SYSTEM NAME X-378A X-378H TRANSMITTER BODY NET-K227FS Net-K227HS TRANSMITTER RF MODULE NET-J72P NET-J72P RECEIVER R700 (FM) R700 (FM) CHARGER NEC-221 NEC-222 AIRBORNE BATTERY 600mah 1100mah SERVOS NES-537X4 NES-537X5 ACCESSORIES Standard Switch Standard Switch

12" Aileron Extension 12" Aileron Extension Charge Jack Charge Jack Servo Accys Servo Accys Hex Wrench Hex Wrench Instruction Manual Instruction Manual

TYPE AIRPLANE HELICOPTER

TRANSMITTER SPECIFICATIONS

3.2

MODEL NUMBER NET-K227FS Net-K227HS ENCODER 7–channel computer system 7–channel computer system RF MODULE 72MHz 72MHz MODULATION PCM (z or s) or PPM PCM (z or s) or PPM OUTPUT POWER Approximately 750mw Approximately 750mw CURRENT DRAIN 200mA (70mA with DSC) 200mA (70mA with DSC) POWER SOURCE 1.2Vx Ni-Cd (9.6V) 600mAh 1.2Vx Ni-Cd (9.6V) 600mAh OUTPUT PULSE 1000–2000 (1500 Neutral) 1000–2000 (1500 Neutral)

TYPE AIRPLANE HELICOPTER

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X-378 MANUAL Introduction

SERVO SPECIFICATIONS

3.3

TORQUE (ounce inch) 43 oz/in SPEED (sec/60°) .2 5 6 0 ° WEIGHT 1.58 SIZE (in) (W x L x H) 1.52 x 0.73 x 1.32 BB Single MOTOR 3-Pole Ferrite

TYPE 537

RECEIVER SPECIFICATIONS

3.4

MODEL NUMBER R700 TYPE 7 Channel / FM-ABC&W / Micro FREQUENCY 72MHz SENSITIVITY (Microseconds) 5 uS minimum SELECTIVELY 8KHz/ 5 dB WEIGHT (oz) 1.5 RECEIVER ANTENNA 39“ for all aircraft frequencies

TYPE FM

CHARGER SPECIFICATIONS

3.5

MODEL NUMBER NEC-221 NEC-222 INPUT VOLTAGE AC 100–120V AC 100–120V OUTPUT CURRENT 50mAh TX/50mAh RX 50mAh TX/120mAh RX CHARGING TIME 15 Hours 15 Hours

TYPE AIRCRAFT HELICOPTER

AIRBORNE BATTERY PACK

3.6

MODEL NUMBER B600 B1000 VOLT AGE 4. 8 V 4. 8 V SIZE (in) (W x L x H) 2.24 x 0.59 x 2.05 2.24 x 0.63 x 1.70 WEIGHT (oz) 3.3 4.9

TYPE AIRCRAFT HELICOPTER

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X-378 MANUAL Introduction

Note:

It is imperative that you fully charge both the transmitter and the receiver battery packs prior to each flight. To do so, leave the charger and batteries hooked up overnight (16 hours). The first charge should be approximately 20–24 hours in order to fully charge both battery packs to peak capacity.

The charger supplied with this system is designed to recharge your batteries at a rate of 5mAh for the transmitter and 50mAh for the receiver battery pack.

Transmitter Only

The center pin on all JR Remote Control Systems is negative. Therefore, the center pin on all JR chargers is negative, not positive. This is different from many other manufacturers' chargers and radio systems. Beware of improper connections based on "colorcoded" wire leads, as they do not apply in this instance. You must make sure that the center pin of your JR transmitter is always connected to the negative voltage for correct polarity hookup.

Important: Please note that the charging polarity of the transmitter and receiver are different.

CHAPTER 4: BA TTER Y CHARGING

TRANSMITTER/RECEIVER

4.1

The pilot lamps should always be on during the charging operation. If not, check to make sure that both the transmitter and receiver are switched off. Do not use the charger for equipment other than JR. The charging plug polarity may not be the same. Equipment damage can result.

Do not use other manufacturers' after-market accessories that plug into the transmitter's charging jack. If you do, any damage that results will not be covered by warranty. If you are unsure of compatabily issues with your radio, seek expert advice before

doing anything to avoid possible damage. During the charging operation, the charger's temperature is slightly elevated. This is normal. Also, note that the voltage shown on the charger is higher than the battery in use. This voltage cannot be measured with a voltmeter. Only current can be measured with any accuracy using this type of charger.

Be sure to use the proper charger (120mAh) when using battery packs of 1000mAh or larger for

your receivers.

CHARGER

4.2

CENTER

PIN IS

NEGATIVE

OUTSIDE IS POSITIVE

RIGHT SIDE OF TRANSMITTER

CHARGER PIGTAIL FOR RECEIVER

CHARGER PIGTAIL FOR TRANSMITTER

BLACK TO POSITIVE

RED TO NEGATIVE

RED–POSITIVE / BROWN–NEGATIVE / ORANGE–SIGNAL

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Page 8

Your new X-378 system employs four digital trim levers for unmatched precision and adjustability. By using the Trim Step function located in the System mode, the movement of the ADT trims can be fine tuned as needed to match your specific application.

The ADT feature is also designed to automatically save the determined trim values for each model. When the X-378 is changed between models in the Model Select function, the digital trim values will automatically stay with each model, eliminating the need for a separate trim memory function.

The X-378's digital trims also feature the Direct Access display function. While at the Normal display screen, if a trim lever is moved, the screen

will automatically change to display the numeric value, as well as the graphic position for the trim being adjusted.

The X-378's digital trims also feature 2-speed scrolling . When a substantial amount of trim is required, holding the trim in the desired position will activate the dual speed scrolling function. The X-378's Aileron, Elevator, and Rudder trim levers (also throttle in sailplane mode) feature an audible center trim beep. This is helpful in determining the trim levers center position during flight.

Please also note that unlike conventional mechanical trim levers, when the X-378 transmitter is in the off position, no changes can be made to the trim values during transportation.

The X-378 also features a revolutionary One-Touch Digital Throttle Trim lever. While in Air or Heli modes, the X-378 will remember the maximum high Throttle Trim position (usually idle) set from the previous flight. At the end of the flight, move the Throttle Trim to the full low (engine off) position. For the next flight, by simply pressing the Digital Throttle Trim up once, the throttle trim value will automatically move to the position from the previous flight. Trim value changes can then be made by moving the throttle trim lever as needed.

The Direct Access Digital Trim function will display

the throttle trim value numerically and also

graphically on the screen automatically each time the Throttle Trim is moved

This feature is very helpful as once you have set the correct throttle trim value for a proper idle, the X-378 will allow the Trim lever to be set back to this position for each flight, eliminating the need to set the exact throttle trim value for each flight.

Note: When the X-378 is in the glider (sailplane) model type, the Digital Throttle Trim works as a conventional trim lever, which is the most desirable method in this mode.

ADVANCED DIGITAL TRIMS

4.3

One Touch Digital Throttle Trim Lever (Air and Heli Modes only)

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X-378 MANUAL Airplane

SECTION II • CHAPTER 1: SOFTWARE FUNCTIONS Airplane

CONTROL IDENTIFICA TION AND LOCA TION

1.1

CHANNEL ASSIGNMENT/THROTTLE AL T

1.2

Channel TX Function Airplane Function

1 THRO Throttle Channel 2 AILE Aileron Channel 3 ELEV Elevator Channel 4 RUDD Rudder Channel 5 GEAR Gear Channel 6 AUX 1 Auxiliary 1 Channel

(Flap)

7 AUX 2 Auxiliary 2 Channel

(Spoiler)

Throttle ALT

The Throttle ALT function makes the throttle stick trim active only when the throttle stick is at less than half throttle. This gives easy, accurate idle adjustments without affecting the high throttle position.

CHANNEL ASSIGNMENT

Rudder/Throttle Control Stick

Digital Rudder Trim Lever

Digital Aileron Trim Lever

Up/Down Scroll Buttons

Channel Key

On/Off Switch

Gear Switch

Flap Mix Switch

Antenna

Carrying Handle

Flap Lever

Snap Roll/Timer Trainer/Button Throttle Cut

Aileron D/R Switch

Rudder DR Switch

Digital Elevator Trim Lever

Aileron/ Elevator Control Stick

Increase/ Decrease Programming Buttons

Clear Key

LCD Display

Neck Strap Eyelet

Elevator DR Switch

Digital Throttle Trim Lever

AUX 2 Lever

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X-378 MANUAL Airplane

CHAPTER 1: SOFTWARE FUNCTIONS Airplane

Airplane Version Transmitter—Sailplane Mode

1. THRO Throttle Channel

2. AILE Left Aileron Channel

3. ELEV Elevator Channel

4. RUDD Rudder Channel

5. GEAR Gear Channel (Right Aileron Channel–AILE 2)

6. AUX 1 Auxiliary 1 Channel (Left Flap Channel for Dual Flaps)

7. AUX 2 Auxiliary 2 Channel (Right Flap Channel for Dual Flaps)

CHANNEL ASSIGNMENT

1. THRO Throttle Channel

2. AILE Aileron Channel

3. ELEV Elevator Channel

4. RUDD Rudder Channel

5. GEAR Gear Channel

6. AUX 1 Auxiliarty 1 Channel (Pitch)

7. AUX 2 Auxiliary 2 Channel (Gyro Sensitivity)

Airplane Version Transmitter-Heli Mode

CHANNEL ASSIGNMENT

Spoiler/Rudder Stick

Digital Rudder Trim Lever

Up/Down Scroll Buttons

Channel Key

On/Off Switch

Crow Switch

Flap Mixing Switch

Oval Flap Aileron Trim Lever

Timer/Trainer Button

Aileron D/R Switch

Rudder DR Switch

Digital Elevator Trim Lever

Aileron/Elevator Control Stick

Increase/Decrease Programming Buttons

Clear Key

LCD Display

Elevator DR Switch

Digital Spoiler Trim Lever

Flapperon Flap Trim Lever

Throttle/Rudder Stick

Digital Rudder Trim Lever

Digital Aileron Trim Lever

Up/Down Scroll Buttons

Channel Key

On/Off Switch

Gear Switch

Flight Mode Switch

Hover Throttle Lever

Timer/Trainer Button

Throttle Cut Button

Rudder DR Switch

Digital Elevator Trim Lever

Aileron/Elevator Control Stick

Increase/Decrease Programming Buttons

Clear Key

Neck Strap Eyelet

LCD Display

Elevator DR Switch

Digital Throttle Trim Lever

Digital Aileron Trim Lever

Neck Strap Eyelet

Hover Pitch Lever

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X-378 MANUAL Airplane

TRANSMITTER CRYSTAL

DSC/TRAINER JACK

CHARGING JACK

FOR Ni-Cd BATTERY

ONLY (8N-600)

BATTERY COVER (REMOVED)

CAUTION: THE BATTERY

CONNECTOR IS KEYED SO THAT IT

CAN ONLY BE PLUGGED IN ONE

DIRECTION. DO NOT FORCE.

TRANSMITTER REAR

1.3

ELEVATOR TENSION SCREW

RUDDER TENSION SCREW

THROTTLE TENSION SCREW

AILERON TENSION SCREW

Transmitter Crystal Replacement Notice

The Federal Communications Commission (FFC) requires that changes in transmitter frequency must be performed only by an authorized service technician (Horizon Service Center). Any transmitter frequency change made by non-certified technician may result in a violation of the FCC rules.

CHAPTER 1: SOFTWARE FUNCTIONS Airplane

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X-378 MANUAL Airplane

DIRECT SERVO CONTROL (DSC)1.6

CONTROL STICK LENGTH ADJUSTMENT1.4

To adjust the stick length, use the 2mm Allen wrench (supplied with your X-378 transmitter) to unlock the set screw. Turn the wrench counterclockwise to loosen the screw. Then, turn the stick clockwise to shorten or counterclockwise to lengthen. After the control stick length has been adjusted to suit your flying style, tighten the 2mm set screw. If you desire longer sticks, JR offers a thicker stick (JRPA047) that is approximately one inch longer than the standard stick. This stick, crafted from bar stock aluminum, is available at your local JR dealer.

For proper DSC hook-up and operation:

1. Leave the transmitter power switch in the Off position. The transmitter will not transmit any radio frequency (RF) in this position.

2. Plug the (supplied) DSC cord into the DSC port in the rear of the transmitter.

3. The encoder section of the transmitter will now be operational and the LCD display will be lit.

4. Plug the other end of the DSC Cord into the receiver charge receptacle. Turn the switch harness to the On position.

Note: When you install the charging jack, be sure to hook the charging jack receptacle securely into the switch harness charge cord.

Why you should use the DSC function:

1. The DSC enables you to check the control surfaces of your aircraft without drawing the fully operational 200mAh from your transmitter battery pack. Instead, you will only draw 70mAh when using the DSC function.

2. The DSC function allows you to make final adjustments to your airplane without transmitting any radio signals. Therefore, if another pilot is flying on your frequency, you can still adjust your aircraft and not interfere with the other pilot’s aircraft.

Note: Under no circumstances should you attempt to fly your aircraft with the DSC cord plugged in! This function is for benchchecking your airplane only.

A—Charge Cord/DSC Receptacle B—Switch Harness Lead C—Charger/DCS Cord

CHAPTER 1: SOFTWARE FUNCTIONS • Airplane

CONTROL STICK TENSION ADJUSTMENT1.5

Remove the Ni-Cd battery and six transmitter back screws as shown on the previous page. Remove the transmitter back, being careful not to cause damage to any components.

Adjust each screw for desired tension (counterclockwise to loosen stick feel; clockwise to tighten stick feel). When adjusting the throttle ratchet tension, make sure that the adjusting screw does not touch the PC board after adjustment is complete.

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SET SCREW

LOOSEN

TIGHTEN

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X-378 MANUAL Airplane

CHAPTER 1: SOFTWARE FUNCTIONS • Airplane

NECK STRAP A TTACHMENT1.7

An eyelet is provided on the face of the X-378 transmitter that allows you to connect a Neck Strap (JRPA023). This hook has been positioned so that your transmitter has the best possible balance when you use the neck strap.

Note: Double-check to ensure that the neck strap is securely fastened to the transmitter.

BASE LOADED ANTENNA

FREQUENCY NOTES/AIRCRAFT ONLY FREQUENCIES

1.8

An optional base-loaded antenna is available for use with the X-378 transmitter. It is considerably shorter than the standard antenna. However, the base loaded antenna cannot be collapsed for storage in the side of the transmitter. You must also use an

adaptor (JRPA156) to attach the antenna to your X-378. The Base Loaded Antenna (JRPA155) is made of a flexible coil and is covered with a soft plastic material. Your range will not be affected when using the base loaded antenna.

1.9

The X-378 transmitter employs a plug-in crystal for transmitter that is glued in place at the time of shipment. Per FCC regulation, the transmitter crystal should only be changed by a certified technician. Changing of the transmitter crystal by a nonauthorized technician could result in a violation of FCC rules.

The X-378 can transmit in either Pulse Code Modulation (PCM) or Pulse Position Modulation (PPM, commonly referred to as FM).

Be certain to observe the following guidelines:

1. Do not operate your transmitter when another transmitter is using the same frequency, regardless of whether the second transmitter is PCM, PPM (FM) or AM. You can never operate two transmitters on the same frequency simultaneously without causing interference to both receivers and crashing both aircraft.

2. For operation of your X-378 with additional receivers, you should refer to the receiver compatibility chart. The chart is located in the

Modulation Selection Section of this manual.

Aircraft-Only Frequencies

JR Transmitters and receivers are available in 72MHz frequencies in the United States for use with model aircraft. Employing 72MHz frequencies does not require a special operator’s license from the Federal Communications Commission (FCC).

* A chart for all available frequencies is located on

page 185 of this manual.

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X-378 MANUAL Airplane

CHAPTER 2: CONNECTIONS • Airplane

It is extremely important that your radio system be correctly installed in your model. Here are a few suggestions on the installation of your JR equipment:

1. Wrap the receiver in protective foam rubber that is no less than 3/8 inch thick. Secure the foam to the receiver with #64 rubber bands. This protects the receiver in the event of a crash or a very hard landing.

2. The servos should be mounted using rubber grommets and brass bushings to isolate them from vibration. Do not over-tighten the mounting screws; this will negate the vibration absorption effect of the rubber grommets. The following diagram will assist you in properly mounting your servo.

The brass bushings are pushed from the bottom up in the rubber grommets. When the servo screw is tightened securely, it provides the proper security as well as the proper vibration isolation for your servo.

3. The servos must be able to move freely over their entire range of travel. Make sure that the control linkages do not bind or impede the movement of any of the servos.

4. Mount all switches away from the engine exhaust and away from any high vibration areas. Make sure the switch operates freely and is able to operate over its full travel.

5. Mount the receiver antenna firmly to the airplane to ensure that it will not become entangled in the

propeller or control surfaces.

INST ALLATION REQUIREMENTS

CONNECTIONS2.2

2.1

4N600

4.8V 600mAh

JAPAN REMOTE CONTROL CO., LTD.

OFF

GEAR

7 CH 72MHz FM SLIMLINE

RECEIVER

ABC&W INTERFERENCE

PROTECTION SYSTEM

BATT

RUDD ELEV AILE THRO

AUX1

RECEIVER BATTERY 4N-600

DELUXE SWITCH HARNESS

(JRPA0001)

CHARGECORD OR

D.S.C. RECEPTACLE

(JRPS024)

CHARGECORD OR D.S.C.

D.S.C.-(JRPA132)

CHARGER-(JRPC221)

R700 RECEIVER

AUXILIARY 2

BATTERY

GEAR

RUDDER

ELEVATOR

AUXILIARY 1

AILERON THROTTLE

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X-378 MANUAL Airplane

CHAPTER 3: INPUT MODE AND FUNCTION • Airplane

BA TTERY ALARM AND DISPLAY

CHAPTER 4: ALARM AND ERROR DISPLA Y • Airplane

4.1

When the transmitter voltage drops below 9.0 volts DC, the display flashes “BATT” and an alarm sounds

seven times. If you are flying when this occurs, land immediately.

KEY INPUT AND DISPLA Y3

The Function Selection keys are used to move up and down through the functions.The Channel key is used to advance the channel or function selected. The

Increase and Decrease keys are used to make changes in the selected functions.

Function Selection Keys

Down

Channel

Increase

Decrease

Clear/Store

BACKUP ERROR DISPLAY4.2

All preprogrammed data is protected by a five-year lithium battery that guards against main transmitter battery failure. Should the lithium battery fail, the display will indicate ERR1 regardless of the position of the On/Off switch. If this occurs, it will be necessary to replace the battery and reprogram all data. All transmitter programs will return to the factory default settings, and the data you have input will be lost. When it becomes necessary to replace the lithium back-up battery, contact JR Horizon

Service Center. Due to the possibility of extensive damage caused by improper removal or replacement, only JR Horizon Service Center is authorized to make this change.

Press both keys at the same time to enter or exit the function mode.

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X-378 MANUAL Airplane

CHAPTER 5:SYSTEM MODE • Airplane

NORMAL DISPLA Y5.1

When the power switch is in the On position, the display will read as follows:

DIRECT ACCESS DIGIT AL TRIMS5.2

The X-378 is equipped with a Direct Access Digital Trim Value function. When at the normal display, if a digital trim lever is moved, the screen will automatically change to show the current trim value for the channel being adjusted. When the trim is returned to center, the screen will change back to the normal display screen after a few seconds.

Current trim value for the channel being adjusted

Modulation

Type

Model Type

Model Number

Elevator Trim

Aileron Trim

Rudder Trim

To enter the System mode, press simultaneously then turn on the power switch. To enter the Function model, turn on the power switch, then press simultaneously.

In the Timer mode, press the Channel key to start/stop the timer, and press the Clear key to reset the timer.

Throttle Trim

Model Name

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CHAPTER 5: SYSTEM MODE• Airplane

1. Press the Down and Channel keys simultaneously.

2. Move the power switch to the On (upper) position.

3. Use either the Up or Down key to scroll through the menu and access the applicable function.

SYSTEM MODE5.3

To enter the System mode, press the Downand Channel keys simultaneously, then turn the power

switch to the on position. The display will show the last active program. Pressing either the Up or Down key then scrolls through the functions one by one, according to the system mode flowchart shown to the right. Once the appropriate function is displayed, changes can be made by pressing the (+) or (-) keys.

System Mode Flowchart

Information pertaining to each function is explained on the page listed next to the function name. Functions will appear in the same order they are shown on this chart.

Accessing the System Mode

Model Selection pg. 18

Model Name Entry pg. 20

Model Type pg. 21

Data Reset pg. 22

Modulation Selection pg. 23

Data Transfer pg. 24

Trim Step pg. 25

Throttle Cut Switch Activation pg. 26

Wing Type pg. 27

Spoiler Channel Input Selection pg. 30

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Accessing the Model Selection Function

CHAPTER 5: SYSTEM MODE• Airplane

The X-378 system offers memory for eight completely separate models. Therefore, it is possible to have a mixture of helicopter, airplane and glider setups retained in memory. It is also recommended that the Model Name Entry function be used in conjunction

with each model setup. Another very useful function of the Model Selection function is the ability to set one aircraft up several different ways. This is helpful when multi-task performance is desired.

1. While pressing the Down and Channel keys, switch the transmitter to the On position to enter the Model Setup mode.

2. Model should be flashing on the right top portion of the LCD. If not, press the Up or Down key until “Model” is displayed and flashing.

3. Pressing the (+) or (-) key will select among each of the eight models available. Notice that as each model is selected, its name appears in the left portion of the LCD.

4. To access the Copy Selection function, press the Channel key.

5. To access the Model Name Entry function, press the Up key.

6. Once the desired model is displayed on the left, pressing the Down and Channel keys simultaneously will exit the Model Selection function and establish the model displayed as the new current model.

Note: When changing from one model type to another, it is not necessary to use the Type Selection function. This is done automatically by the computer.

MODEL SELECTION/COPY SELECT

5.4

“Model” flashing indicates

Model Select function

Model Selection

Model Name

Spoiler Channel Input Select

Copy Selection

Model Name Entry

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Accessing the Copy Selection Function

CHAPTER 5: SYSTEM MODE• Airplane

1. While pressing the Down and Channel keys, move the transmitter’s power switch to the On position.

2. Press either the Up or Down key until "Model" appears flashing on the top right side of the LCD.

3. The number that appears below the flashing Model is the current model. This is important to note as only the current model will be the copied or "from" model. It is imperative to retrieve the proper current model prior to initiating the copy sequence. Press the Increase or Decrease keys to select the desired model to be copied.

4. Next, press the Channel key once. The word "Copy" will appear at the top left of the screen indicating that the Copy function has been selected.

5. The large number (1-8) at the bottom center of the LCD indicate the accepting model.

6. Now press the Increase or Decrease keys to select the accepting model number.

Note: Always make sure that the accepting model is either free of input or one which you no longer want to retain in your transmitter’s memory. Once the copying process has been completed, the information of the accepting model is lost and the current model is input as the new data.

7. Once the desired accepting model is selected, press the Clear key to complete the Copy Selection function. The model number at the bottom of the screen will flash several times, indicating that the model copy function was successful. The “from” (template) model’s name and data will now replace that of the accepting model.

8. To access the Spoiler Channel Input Select function, press the Down key.

9. To access the Model Naming function, press the Up key.

10. To exit the Copy Selection function, press the Down and Channel keys simultaneously.

The Copy Selection function enables you to copy all of the settings of the current model to another model within the same transmitter. This is very

useful when setting up one aircraft several different ways or when trying an alternative setup of your current model.

Model number to be copied

Press Clear to copy current model to model number shown at the bottom of the LCD screen.

Copy Selection

Model number to be copied to

Model Naming

Press at Model Select function to access Copy function.

Press Increase or Decrease to select model number to be copied to.

Spoiler Channel Input Select

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X-378 MANUAL Airplane

Accessing the Model Name Entry Function

CHAPTER 5: SYSTEM MODE• Airplane

The X-378 allows a 3-digit name to be input for each of the eight models available. The current model will be displayed in the Normal display when the timer is

not active. You may also find this useful to identify different aircraft setups.

1. While pressing the Down and Channel keys, switch the transmitter to the On (upper) position to enter the Model Setup mode.

2. Use the Model Selection function to select the model you want to name. (Please refer to the Model Selection section at this time.)

3. Press either the Up or Down key until the first digit of the model to be named is flashing on the left portion of the LCD.

4. The current name will be displayed in the left portion of the LCD. Pressing the (+) or (-) key will select the first alphanumeric character.

Note: The character being selected will flash.

5. Press the Channel key to advance the character selection to the next character.

6. Repeat this procedure until all three characters are selected.

7. To access the Model Selection function, press the Down key.

8. To access the T ype Selection function, press the Upkey.

9. To exit the Model Name Entry function, press the Down and Channel keys simultaneously.

MODEL NAME ENTRY

5.5

Model Number

Next character

Select characters

Clear current character

Flashing first digit indicates Model Naming function and current character to be changed

Model Type

Model Select

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CHAPTER 5: SYSTEM MODE• Airplane

Accessing the T ype Selection Function

The X-378 is capable of performing as a helicopter, airplane or sailplane radio with full functions for each.

1. While pressing the Down and Channel keys, switch the transmitter to the On position to enter the Model Setup mode.

2. Press either the Up or Down keys until “Acro,” “Heli,” or “Glid” is displayed in the left portion of the LCD.

3. Pressing either the (+) or (-) key will change the type of model.

4. To access the Model Name Entry function, press the Down key.

5. To access the Data Reset function, press the Up key.

6. To exit the Type Selection function, press the Down and Channel keys simultaneously.

MODEL TYPE SELECTION

5.6

CLR

Model Type

Data Reset

Model Naming

Press to change model type.

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CHAPTER 5: SYSTEM MODE• Airplane

1. While pressing the Down and Channel keys, switch the transmitter to the On position to enter the Model Setup mode.

2. Press the Up or Down key until “RESET” appears in the center of the LCD display. Be sure that the model selected is the model you want to reset by checking the number at the right side of the display.

3. To reset data, press the Clearkey.

4. To access the Type Selection function, press the Down key.

5. To access the Modulation Selection function, press the Up key.

6. To exit the Data Reset function, press both the Down and Channel keys simultaneously.

Accessing the Data Reset Function

The Data Reset function permits you to reset all the functions and settings for the current model to factory conditions. Resetting does not affect the data already programmed for other models. Be sure to

confirm that you need to reset the data of the currently indicated model in order to prevent accidental loss of your valuable data.

DA T A RESET

5.7

Model number to be reset

Modulation Select

Model Type

Press to Data Reset current model.

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1. While pressing the Down and Channel keys, move the power switch to the On position to access the System mode.

2. Press either the Up or Down key until “SPCM,” “ZPCM,” or “PPM” appears at the top of the LCD.

3. To change among the modulation types, press either the (+) or (-) keys.

Note: When the Data Reset function is used, the X-378 retains the current modulation selected for each model. This means that the modulation type does not change.

4. Pressing the Clear key will also reset the modulation selection to the factory preset S-PCM.

5. To access the Data Reset function, press the Down key.

6. To access the Data T ransfer function, press the Upkey.

7. To exit the Modulation Selection function, press the Down and Channel keys simultaneously.

Note: In the normal display, the selected modulation type will appear in the middle of the LCD.

Accessing the Modulation Select Function

The Modulation Selection function enables your X-378 to transmit to a variety of JR receivers that are already, or may soon be, in existence. You can select from either of two types of PCM, Z-PCM or S-PCM, depending on the Central Processing Unit (CPU)

within your receiver or from linear PPM (Pulse Position Modulation [FM]).

Refer to the receiver compatibility chart below for the correct modulation.

MODULA TION SELECT

5.8

TX Modulation Compatible Receivers # of Channels &

Brief Description

PPM NER-226 6 (micro) PPM NER-228 8 PPM (FM) NER-327x 7 PPM (FM) NER-527x 7 (micro) PPM (FM) NER-529x 9 (micro) PPM (FM) NER-549 9 PPM NER-600 6 PPM NER-610M 6 PPM NER-700M 7

TX Modulation Compatible Receivers # of Channels &

Brief Description

Z-PCM NER-236 6 (micro) Z-PCM NER-627XZ or

627

“G” series

7 Z-PCM NER-J329P 9 Z-PCM NER-910XZ 10 S-PCM NER-955 10 S-PCM NER-D945 10 S-PCM NER-649S 9

CHAPTER 5: SYSTEM MODE• Airplane

CLR

Modulation

Data Transfer

Data Reset

Press to change modulation.

Press to reset to SPCM modulation.

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1. Both transmitters: With the main power switch off, press the Down and Channel keys simultaneously while turning the power switch on to enter the System mode. The word “TXDSC” will be displayed and flashing.

2. Press the Channel key to select Transmit (TXDSC) or Receive (RXDSC) modes.

3. Insert the Trainer cord into each transmitter, the letters DSC will be removed from the screen.

4. Turn off the power switch on each transmitter. The screen will then change to read either “TXOUT” or “RXSEL”, depending if transmit or receive modes were selected.

Note: It is also possible to access the Data Transfer function as follows:

5. With the main TX power switch off, press the Down and Channel keys simultaneously while inserting the trainer cord into the DSC jack of both transmitters.

(The transmitters will now be in System mode automatically)

6. Press the Channel key to select transmit (TX) or receive (RX) modes.

7. Both transmitters: In the System mode, press the Up or Down keys until the words “TXOUT” appears on the screen. This is the Data Transfer program.

8. Receiving Mode Transmitter (TX to receive programming): Press the Channel key until the screen reads “RXSEL.” The word “MODEL” will begin flashing at the top right portion of the LCD directly over the current model number selected.

9. Select the receiving model number by pressing the (+) and (-) keys.

Transmitting Data

10. Press the Clear key to activate the receiving standby mode. The word “RX IN” will now be indicated on the screen.

T ransfer Procedure

The X-378’s Data Transfer function allows for a model from one X-378 transmitter to be sent to another X378 transmitter by using a JR Trainer Cord (JRPA130 sold separately).

Transmitting Transmitter: It will first be necessary to select the desired model (1-8) to be transferred to the receiving transmitter. Access the Model Select function and select the desired model number to be transferred (see section 6.1 for information).

DA TA TRANSFER

5.9

CHAPTER 5: SYSTEM MODE• Airplane

Indicates that the DSC cord needs to be inserted, and the TX power switch needs to be turned off

Trim Step

Modulation Select

Press to select Transmit (TX) or Receive (RX ) modes

Transmit Mode

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CHAPTER 5: SYSTEM MODE• Airplane

The Trim Step function allows the user to increase or decrease the coarseness of the servo movement as compared to the steps or beeps of the digital trim. The total servo trim movement remains the same, (approx. 30degree) regardless of the trim step rate selected(1~10). The factory default setting for the trim step function is 4, which means that for each

step (beep) of the digital trim, the servo will move in digital increments of 4. In other words, if a finer trip step value of 1 is selected, the servo will move in a digital increment of 1for each step (beep) of the digital trim. If a more coarse trim value of 10 is selected, the servo will more in a digital increment of 10 for each step (beep) of the digital trim lever.

TRIM STEP

5.10

Throttle Cut

Data Transfer

Press Channel to select channel to be adjusted (Throttle, Aileron, Elevator, Aux 2 Lever, Flap Level).

Press Clear to reset to the factory default (4) position.

Press the (+) or (-) keys to increase or decrease the trim step rate.

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This is the function to assign Throttle Cut switch to the push button located on upper front of the transmitter. In the System mode, select the Throttle Cut Switch function (CUT) by using Up or Down keys, and press (+) or (-) keys to select the function on or

off. The Throttle Cut function is designed to return the throttle trim to the lowest position instantly and keep this position while the button is pressed. This feature is used to “cut” or stop the engine without changing the position of digital throttle trim.

THROTTLE CUT SWITCH ACTIVATION

5.11

CHAPTER 5: SYSTEM MODE• Airplane

AUX 2 Switch Selection

Trim Step

Press the (+) or (-) keys to turn the Throttle Cut function on and off.

Press Clear to reset to the factory off position.

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CHAPTER 5: SYSTEM MODE• Airplane

The purpose of the Wing Mixing or Wing Type function is to eliminate mechanical or programmable mixes that would otherwise be necessary for the proper flight of certain styles of aircraft. There

are three wing types from which to choose; select the one that will best suit your R/C aircraft. They are as follows: Normal, Flapperon, and Elevon (Delta). Each of the Wing Type selections will be covered below.

This is the first wing type selection that appears on your LCD display. Use this wing type with common aircraft that utilize only one servo for both of the control surfaces. Normal is the factory default setting for the Wing Mixing function. This means that if data

reset is performed, your radio will return to this wing type selection. Your X-378 transmitter will also return to the normal wing mixing type if the transmitter battery pack and the lithium battery are both removed from the transmitter.

1. While the Down and Channel buttons are pressed, move the power switch to the On position to access the System mode.

2. Press either the Up or Down key until "WING" appears at the left portion of the LCD. The current wing type will be displayed on the upper center portion LCD: NORM-Normal; FLPER-Flapperon; DELT-Delta (Elevon).

3. Press either the (+) or (-) key to select the desired wing type.

4. To access the Throttle Cut function, press the Down key.

5. To access the Aux2/Spoiler Channel Input Select function, press the Up key.

6. To exit the Wing Mixing function, press the Down and Channel keys simultaneously.

Note: There are not any special receiver port connections to be made when the Normal Wing Type Selection is selected.

WING TYPE SELECTION

5.12

Wing type

Throttle Cut

Aux2/Spoiler Channel Input Select

Press the (+) or (=) keys to change the wing type.

Press the Clear key to reset to the factory default position (NORM).

Normal Wing T ype Selection

Accessing the Normal Wing Mixing Selection

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1. While the Down and Channel buttons are pressed, move the power switch to the On position to access the System mode.

2. Press either the Up or Down keys until "WING" appears in the left portion of the LCD. The current wing type will be displayed on the Upper center portion of the LCD: Norm-Normal; FLPER-Flapperon; DELT-Delta (Elevon).

3. Press either the (+) or (-) key to access the Flapperon (FLPR) Wing Type Selection.

Note: For Flapperon, one servo must be used for each aileron control surface.

4. Plug the left wing aileron servo into the Auxiliary 1 (AUX 1) port of your JR receiver. Connect the right aileron servo into the aileron port (AILE) of your receiver.

5. Check to make sure that the wing servos move in the proper direction. For a right turn, the right aileron should raise while the left aileron lowers simultaneously. For a left turn, the opposite is true; the left aileron should rise while the right aileron drops. If your servos are not moving in the direction just described, use the Servo Reversing function to reverse the travel direction of the servo(s) that are moving improperly. Refer to the Servo Reversing section for information on how to reverse the travel direction.

Note: Each servo's travel direction is adjusted individually through the Servo Reversing function.

Once the servos achieve their proper travel direction, adjust their travel volume, dual rates, sub-trim and aileron differential.

Note: The applicable channel's left or right travel adjustment may be made individually by accessing the Travel Adjust function. Refer to the Travel Adjust section of this manual for more information. The fine adjustments of your aileron controls should be made in the Dual-Rate function. Refer to the DualRate section for information on how to do so. You can also adjust the neutral point of your aileron servos individually through the use of the Sub-Trim function. Refer to the Sub-Trim section of this manual for more information.

6. The flap lever located on the right face of the transmitter controls the aileron movements as flaps.

Note: Differential is offered for the Flapperon function of your X-378. For more information, please refer to the Differential section of this manual.

8. To access the Throttle Cut function, press the Down key.

9. To access the Aux2/Spoiler Channel Input Select function, press the Up key.

10. To exit the Wing Mixing function, press the Down and Channel keys simultaneously.

Accessing and Utilizing the Flapperon Wing T ype Selection

Flapperon Wing T ype Selection

Connect this servo to the aileron part of the receiver.

Connect this servo to the AUX 1 part of the receiver.

CHAPTER 5: SYSTEM MODE• Airplane

Flapperons allow you to use the existing ailerons as flaps. The ailerons can be raised or lowered in

unison as flaps, yet still remain fully operational as the ailerons of your R/C airplane.

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CHAPTER 5: SYSTEM MODE• Airplane

Delta Wing T ype Selection

Delta or Elevon is the final Wing Mixing selection in your X-378. This style of aircraft also employs two wing servos. However, there is not an elevator present. Instead, at an elevator stick input, the two wing servos function in conjunction with one another to create an up/down movement of the aircraft. The

wing itself functions as if it were the elevator. Also, when an aileron control is given, the two wing servos move in opposition to one another to function as ailerons.

1. While the Down and Channel keys are pressed, move the power switch to the On position to access the System mode.

2. Press either the Up or Down key until "WING" appears in the left portion of the LCD. The current wing type will be displayed on the upper center portion of the LCD: NORM-Normal; FLPERFlapperon; DELTA-Delta (Elevon).

3. Press either the (+) or (-) key to select the Delta (Elevon) Wing Type function.

Note: With the Delta function, one servo must be used for each elevon, i.e., a separate servo for each wing half.

4. Plug the left elevon servo to the aileron (AILE) of your JR receiver. Connect the right elevon servo into the elevator (ELEV) port of your receiver.

5.Check to make sure that the servos move in the proper direction. When an input is given from the elevator stick, they should move in unison to achieve the proper up/down elevator command. If your servos do not move in the proper direction as described above, use the Servo Reversing function to reverse the travel direction.

Note: Each servo's direction is adjusted individually through the Servo Reversing function. For more information, refer to the Servo Reversing section in this manual.

6. Once the servos have achieved their proper travel direction, adjust their travel direction, travel volume, dual rates, sub-trim and aileron differential.

Note: The applicable channel's left or right, up or down travel adjustments can be made individually. Refer to the Travel Adjust section in this manual for more information.

7. Relative to the note above, each servo's travel volume is automatically reduced to 75% of the operating range. This is to ensure that the servo does not operate beyond its capabilities. Failure to observe extreme caution when adjusting the value for the elevon servos may result in damage to the servos by over traveling.

Note: Fine adjustments of the elevons should be made in the Dual-Rate function. For more information, refer to the Dual-Rate section in this manual. You can also adjust the neutral point of your elevon servos individually. To do so, use the Sub-Trim function as described in the Sub-Trim section of this manual. Differential is offered for the elevon function of your XP-783. For more information, refer to the Differential Aileron Mixing section of this manual.

9. To access the Throttle Cut function, press the Down key.

10. To access the Aux2/Spoiler Channel Input Select function, press the Up key.

11. To exit the Wing Mixing function, press the Down and Channel keys simultaneously.

Connect this servo

to the elevator part

of the receiver.

Connect this servo to the aileron port of the receiver.

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AUX 2/SPOILER CHANNEL INPUT SELECT

5.13

CHAPTER 5: SYSTEM MODE• Airplane

Accessing the Spoiler Channel Selection Function

The purpose of the Aux 2/Spoiler Channel Input Selection function is to assign the activation device for the AUX 2 channel. The Lever provides proportional control, while the switch allows On/Off function of the AUX 2 channel.

Note: If the spoiler is coupled to the landing system, the spoiler lever or switch will not operate the spoiler's channel and "LAND" will appear in this program.

1. While pressing the Down and Channel keys, switch the transmitter to the On position to enter the System Mode.

2. Press either the Up or Down key until "AUX 2" appears at the upper right portion of the LCD.

3. Press either the (+) or (-) key to assign the desired switch (LEVRG or MIX SW)

4. To access the Wing Type function, press the Down key.

5. To access the Model Select function, press the Up key.

6. To exit the Aux2/Spoiler Channel Input Selection function, press the Down and Channel keys simultaneously.

CLR

Press the Clear key to reset to the factory default position (LEVRG)

Switch selected (LEVRG or MIX SW)

Model Select

Wing Type

Press the (+) or (-) key to select the desired switch to be assigned.

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Accessing the Mode Function

To enter the Function mode, switch the transmitter power switch to the On position. Press the Down and Channel keys simultaneously, and the display will show the last active program. Pressing either the Up or Down key then scrolls through the functions one by one, according to the Function Mode Flowchart shown on the right. Once the appropriate function is displayed, changes can be made by pressing the (+) or (-) keys. To select another channel of a particular function, press the Channel key. If you transfer to a different function that is channel selectable, the display will show the same channel. For example, if you are adjusting the dual rate of the elevator and you change to the Exponential function, the channel remains elevator. The Function mode is the most often used system to input data.

Function Mode Flowchart

Information pertaining to each function is explained on the page listed next to the function name. Functions will appear in the same order they are shown on this chart.

1. Move the power switch to the On position.

2. Press the Down and Channel keys simultaneously.

3. Use either the Up or Down to scroll through the menu and access the applicable function.

FUNCTION MODE

6.1

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Servo Reversing

pg.32

Dual Rate pg.33

Exponential pg.35

Sub-Trim pg.38

Travel Adjust pg.39

Elevator-toFlap Mixing pg. 40

Aileron-toRudder Mixing pg. 42

Landing Mode pg. 44

Snap Roll Function pg.46

Differential Aileron Mixing pg. 48

Flap Lever Adjustment

pg. Programmable

Mixing pg. 50 Fail-Safe (only

visible when PCM Modulation is selected) pg. 52

Trainer Function pg. 59

Timer Function pg. 62

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Accessing the Reverse Switch Function

The Reverse Switch function is an electronic means of reversing the throw of a given channel (servo). All seven channels of the X-378 offer reversible servo

direction. This will ease setup during the servo installation into your aircraft.

1. Place the transmitter switch in the on position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Up or Down key until the “REV.” appears in the upper left corner of the LCD.

4. Using your transmitter’s control sticks, switches and potentiometers, move the control surfaces of your aircraft. Note the travel direction of each of the corresponding control surfaces.

5. After you have determined which channel(s) need to have the throw directions reversed, use the

Channel key to call up the appropriate channel.

6. Press either the (+) or (-) keys to change the travel direction of the servo. Pressing the Clear key returns the travel direction to Normal.

7. You can observe the change in the travel direction by moving the appropriate control at this time.

8. To access the Timer function, press the Down key.

9. To access the Dual Rate function, press the Upkey.

10. To exit the Reverse Switch function, press the Down and Channel keys simultaneously.

SERVO REVERSING

6.2

Channel to be adjusted

Press the (+) or (-) keys to change the servo direction.

Press Channel to change to the desired channel to be adjusted.

Press Clear to reset to the factory normal direction.

THRO: Throttle AILE: Aileron ELEV: Elevator RUDD: Rudder GEAR: Retract

Landing Gear FLAP: Flap (AUX 1) SPOI: Spoiler

Dual-Rate Function

Timer Function

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Accessing the Dual-Rate Function

Dual rates are available for the aileron, elevator and rudder channels of your R/C aircraft. There is also an automatic dual rate setting to link your aileron, elevator, and rudder dual rates to the flight model switch. This automatic Dual-Rate function is discussed in a separate section that follows. Dual rates may be defined as the ability to vary the travel or throw rate of a servo from a switch. Due to the differing travel rates, you will find that the sensitivity

of the control either increases or decreases accordingly. A higher rate, or travel, yields a higher overall sensitivity. You may find it easier to think of the Dual-Rate function as double-rates or halfrates.The Dual-Rate function works in conjunction with the Exponential function to allow you to precisely tailor your control throws. You may want to consult the section defining exponential for further information.

1. Place the transmitter power switch in the on position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Up or Down key until “D/R” appears in the upper left corner of the LCD.

4. Press the Channel key until the desired channel (aileron, elevator, rudder or automatic dual rates) appears.

5. Select the switch position for which you want to adjust the rate. The number to the upper right of the current rate value on the display indicates the current position of the Dual-Rate switch for the

channel that you have selected. Either a 0 or a 1 will be shown, corresponding to the position of the switch. To select the opposite switch position, move the appropriate Dual-Rate switch to the opposite position. The number that appears above the current rate value reflects the change.

6. Adjust the rate for the channel and the switch position that you have just selected. To decrease the throw rate, press the (-) key. To increase the throw rate, press the (+) key. As stated previously, the adjustable rate is from 0-125% for each switch position and channel.

DUAL RA TES

6.3

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Channel to be adjusted

Exponential

Servo Reversing

Press Channel to select Aileron, Elevator, Rudder, or Auto D/R to be adjusted.

Press (+) or (-) to increase or decrease D/R values.

Channel to be adjusted D/R switch position. (0 or 1)

Press Clear to reset to factory default settings.(100%)

The amount of travel is adjustable from 0-125% in 1% increments. The factory setting, or default value, for both the 0 and 1 switch positions is 100%. Either

switch position may be selected as the low or high rate by placing the switch in the desired position and adjusting the value accordingly.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE)

•

Accessing the Dual-Rate Function (continued)

Note: You can observe the servo changes by moving the respective stick while increasing or decreasing the values. The control changes accordingly. T o clear the dual rate for the respective channel and switch position, press the Clear key. After the dual rates have been dialed in to your satisfaction, we suggest that you begin to adjust the exponential values. Refer to the Exponential section for more information.

7. To access the Servo Reversing function, press the Down key.

8. To access the Exponential function, press the Up key.

9. To exit the Dual-Rate function, press the Downand Channel keys simultaneously.

Automatic Dual-Rate

If the Automatic Dual-Rate function AUTO is active (on), when switching the flight mode switch, aileron,

elevator and rudder channel Dual-Rate values are switched to preset values settled by position 1.

Press Clear to return to the factory default setting (off).

Press the (+) or (-) keys to turn the Auto D/R function on or off.

To access this function, move to the D/R (Dual-Rate) screen, and press the Channel button until the word “AUTO” appears at the top center of the screen, with a small box with the number 1 to the far left. This would indicate the Auto D/R function for Flight mode 1. Press the (+) or (-) keys to turn the function on or off. Repeat this procedure for flight modes 2 and

Hold (HO).To confirm that the Auto D/R is functioning, simply move the flight mode switch while at any of the normal D/R channel screens. If the Auto D/R is functioning, the screen will indicate D/RAT, and the D/R switch position at the far right of the screen will change from 0 to 1 as the switch is moved.

Flight mode position to be adjusted Condition (off or on)

Flight mode position to be adjusted

Exponential

Servo Reversing

Press Channel to select the desired flight mode to adjust (1,2 or HO).

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Accessing the Exponential Function

Programmable exponential adjustments are offered on the aileron, elevator, and rudder channels of your R/C aircraft. Exponential is a function that allows you to tailor the response rate of the stick controls. The purpose of exponential is to reduce the sensitivity in the middle portion of stick movement, while still allowing full travel at the end of the stick movement. In other words, the end result (travel) remains the same, although exponential changes the rate at which it achieves this travel. The adjustable range of the Exponential Function is from 0-100%. Zero percent (0%) is linear stick control

which means that the response rate is equal throughout the stick control. 100% is full exponential. The larger the exponential value, the less servo action or sensitivity you will notice around the neutral setting.

Note: The Exponential function operates in conjunction with the Dual-Rate function. It is imperative to understand the Dual-Rate function prior to adjusting the exponential values. Exponential may be selected for either the high or low rate or both.

1. Place the transmitter power switch in the On position.

2. Press the Down and Channel keys simultaneously to access the Function mode.

3. Press either the Upor Down key until “EXP” (Exponential) appears in the upper left corner of the LCD.

4. Press the Channel key until the desired channel (aileron, elevator, rudder or AUTO) appears.

5. Select the switch position for which you want to adjust the exponential rate. The number directly above the exponential value on the display indicates the current position of the Dual-Rate switch for the channel that you have selected. Either a 0 or 1 will be shown, corresponding to the position of the switch. To select the opposite switch position, move the appropriate Dual-Rate or Flight mode switch to the opposite position. The number that appears directly

above the Exponential value will reflect the change.

6. Adjust the rate for the channel and the switch position that you have just selected. To increase the exponential rate, press the (+) key. The adjustable rate is from linear (0%) to100% for each switch position and channel.

Note: Exponential is an acquired feel. It may take several test flights to achieve the proper amount of exponential that fits your flying style.

8. To access the Dual-Rate function, press the Downkey.

9. To access the Sub-Trim function, press the Up key.

10. To exit the Exponential Function, press the Down and Channel keys simultaneously.

EXPONENTIAL6.4

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Press Clear to reset values to the factory default position.

Channel to be adjusted

Sub-Trim function

Dual-Rate function

Press to select Aileron, Elevator, Rudder, or AUTO position to be adjusted.

Press the (+) or (-) keys to Increase or decrease the Exponential values, or to activate or inhibit the Exponential function in the Auto Dual-Rate modes.

Dual-Rate switch position to be adjusted

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Automatic Rudder Exponential Rate

When the Automatic Rudder Exponential Rate function is active, the throttle stick position will automatically switches among the rudder exponential rates that you have selected in the exponential section listed above. This means that, as you advance or pull back the throttle stick, the rudder exponential rates automatically change. When the throttle stick is moved anywhere from low to approximately 70% of full travel, the low (position

0) rudder exponential rates are active; once the throttle is fully advanced, high (position 1) rudder exponential will automatically return.

You will find that the automatic rudder exponential rate is very useful in overcoming special flying problems. The idea is to have less rudder sensitivity at high throttle positions because the rudder is more effective at higher speeds. Conversely, it is more efficient to have more rudder sensitivity at lower speeds because the rudder is not as effective. The Automatic Rudder Exponential Rate function can also be used in the opposite manner to reduce the sensitivity of the rudder for takeoffs with models that have sensitive steering.

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

On/Off

Sub Trim

Dual-Rate

Press the (+) or (-) keys to turn the AUTO function on and off.

Press the Clear key to reset to the factory default position (Off).

Press Channel to access AUTO rate function from exponential screen.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

1. Place the transmitter switch in the On (upper) position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Up or Down key until "D/R" appears in the upper center portion of the LCD.

4. Press the Channel key until "AUTO" is displayed.

5. Pressing either the (+) or (-) keys changes the automatic rudder Exponential rate from off to on. To return the auto rudder exponential rate to the "Off" position, press the (+) or (-) keys one more time or press the Clear key.

6. When the Automatic Rudder Exponential Rate function is active, "EXPAT" will be displayed on the rudder exponential rate display.

7. The exponential rate value selected for switch position 0 will be the value used for low throttle stick operation (Up to approximately 70%); the exponential rate value selected for switch position 1 will be the exponential value used when the throttle stick is in the high (full) position.

8. To access the Dual-Rate function, press the Down key.

9. To access the Sub Trim function, press the Up key.

10. To exit the Automatic Rudder Exponential Rate function, press the Down and Channel keys simultaneously.

Note: In order for the Automatic Rudder Exponential Rate function to operate, the rudder dual rate switch must be in the 0 position. Moving the dual rate switch to the 1 position negates the operation of the automatic rudder exponential rate and defaults the rate to the value for switch 1.

To confirm that the Auto Rudder Exponential Rate is functioning, simply move the throttle stick while at the EXPAT screen. If the Auto Rudder Exponential is functioning, the exponential rate switch position at the far right of the screen will change from 0 to 1 as the throttle stick is moved.

Adjusting the Automatic Rudder Exponential Rates

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

The Sub-Trim Adjustment function allows you to electronically fine-tune the centering of your servos. Individually adjustable for all seven channels with a range of ±125% (+/-30 degrees servo travel), the subtrims can be set for the same neutral settings for

each model stored in the transmitter’s memory. The sub trim functions provides precise servo arm neutral positioning if rotating the servo arm will not allow the desired servo arm position.

1. Place the transmitter power switch in the On position.

2. To Access the Function mode, press the Downand Channel keys simultaneously.

3. Press either the Up or Down key until “SUBTRIM” appears in the upper middle portion of the LCD.

4. Press the Channel key until the desired channel appears.

5. Press the (+) or (-) key to establish the desired amount and direction of Sub-Trim.

Note: A (+) or (-) symbol appears to the left of the sub trim value to indicate the direction of Sub-Trim input.

Caution: Do not use excessive sub-trim adjustments since it is possible to overrun your servo’s maximum travel if it is off-center. Remember that it is a trim convenience function. It is not intended to take the place of the proper mechanical trim adjustments that are necessary on any R/C model. An offset servo will also produce a differential effect.

6. To access the Exponential function, press the Down key.

7. To access the T ravel Adjust function, press the Up key.

8. To exit the Sub-Trim function, press the Down and Channel keys simultaneously.

Accessing Sub-T rim Adjustment Function

SUB-TRIM6.5

Press Clear to reset to the factory default settings (0%).

Press the (+) or (-) keys to increase or decrease the Sub-Trim value.

Channel to be adjusted

Sub-Trim Value

Travel Adjust

Exponential

Press to select desired channel to be adjusted (1-7).

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The purpose of Travel Adjust, also known as endpoint adjustment or adjustable travel volume, is to offer you precise servo control deflection in either direction of servo operation. The X-378 offers travel adjust for all seven channels. The Travel Adjust range

is from 0-150% (0 degrees to 60 degrees) from neutral, or center, and it can be adjusted for each direction individually. The factory default (Data Reset) value is 100% for each direction of servo travel.

TRAVEL ADJUST

6.6

Accessing the T ravel Adjust Function

1. Place the transmitter power switch in the On position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Up or Down key until “TRAVL” appears in the upper middle portion of the LCD.

4. Press the Channel key until the desired channel appears.

5. Move the appropriate control stick (lever, switch, etc) to the right or left of center to the direction of travel you want to adjust. An arrow to the right of the travel adjust value will reflect the current position to be adjusted. Using our example above, if the aileron stick is moved to the left, a left-facing arrow will appear to the left of the travel adjust value on the LCD screen.

6. After the control stick or switch is placed in the direction of travel to be adjusted, press the (+) or (-) key until the proper amount of servo travel is shown on the lower right side of the LCD. Press the (+) key to increase the amount of servo travel. Press the (-) key to decrease the amount of servo travel.

7. Follow the same procedure for the remaining channels.

8. To access the Sub-Trim function, press the Down key.

9. To access the Throttle Hold (or CCPM Mix if activated) function, press the Up key.

10. To exit the Travel Adjust function, press the Down and Channel keys simultaneously.

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Press Clear to reset to factory default settings (100%).

Press the (+) or (-) keys to increase or decrease the Sub Trim values.

Travel direction to be adjusted (left/right, up/down, etc)

Channel to be adjusted

Press Channel to select the desired channel to be adjusted.

Elevator to Flap Mixing

Sub-Trim

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1. Place the transmitter power switch in the On position.

2. Access the Function mode. To do so, press the Down and Channel keys simultaneously. Press either the Up or Down key until "ELEV-FLAP" appears in the center portion of your LCD.

Note: If the Flap Mixing switch is not in the uppermost position, the position indicator will read "OFF". The flap mixing switch must be in the upper (elevator) mix position in order to make adjustments to the flap mixing value.

3. Move the elevator stick in the direction you want to mix with flaps.

Note: The position indicator will reflect this change by replacing the up arrow with a down arrow or vice-versa. A down arrow indicates up elevator, and an up arrow indicates down

elevator (arrow position is indicating stick position, not elevator direction.

5. Press the (+) or (-) key to increase or decrease the amount of flaps to be mixed. If you want to reverse the flap travel, press the Clear key, bringing the mixing value to the factory default (0%), and increase the value using the opposite key (+) or (-) from the key originally selected.

6. Once you have adjusted the first mixing position (up or down), place the elevator stick in the opposite direction and follow Step 5 above to adjust the second elevator mixing value.

7. To access the Travel Adjust function, press the Down key.

8. To access the Aileron-to-Rudder Mixing function, press the Up key.

9.To exit the Elevator-to-Flap Mixing function, press the Down and Channel keys simultaneously.

Accessing the Elevator to Flap Mixing Functiion

When this system is active and a value of flaps is input, the flaps will be deflected each time the elevator stick is used. The actual flap movement is adjustable for both up and down elevator. The most frequently used application is up elevator/down flaps

and down elevator/up flaps. When used in this manner, the aircraft pitches much more quickly than normal. The upper-most position of the Flap Mixing switch activates the Elevator-to-Flap Mixing circuitry.

ELEVATOR-TO-FLAP MIXING

6.7

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Press the Clear key to reset to the factory default position (0%).

Up/Down arrows change when the elevator stick is moved, and indicate current position to be adjusted

Current mixing value

Current mix switch position (Up=ON, center or low position displays OFF)

Aileron-to-Rudder Mixing

Travel Adjust

Press the (+) or (-) keys to increase or decrease the mixing value for each position.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Note: Only the elevator input indicated by the LCD will be cleared. For example, if the up arrow were displayed and CLR were pushed, the down arrow value would still be retained by the transmitter. In order to change elevator operating direction, move the elevator control stick in the direction you want to mix with flaps. Using our example, we would input down elevator. The down arrow would be displayed at the lower left

portion of the LCD. Our mixing value would also change to reflect our input. If the Flap Mixing switch is not in the uppermost position, the position indicator will change from “On’’ to “Off’’. This indicates that the Elevator-to-Flap Mixing function is not currently active. Although the current mixing value will still be displayed, it will not be possible to alter this value until the mix switch is returned to the on position.

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This form of mixing is designed so that when input to the aileron stick is given, the rudder servo will also move, eliminating the need to coordinate these controls manually. When adjusting, if an opposite mixing direction of the rudder servo is required, simply press the (+) or (-) keys to change the mixing value from a (+) to (-)

or a (-) to a (+). This will reverse the mixing direction of the rudder from its original direction. The switch used to activate this mix can also be selected as explained below. The factory default mix switch for the Aileron-to-Rudder mix function is Rudder D/R/Mix switch located at the upper right side of the transmitter.

1. Place the transmitter power switch in the On position.

2. Access the Function mode. To do so, press the Down and Channel keys simultaneously. Press either the Up or Down key until "AILE-RUDD" appears in the center portion of your LCD.

Note: If the current mixing switch is not in the on position, the position indicator will read "OFF." The current mixing switch must be in the On position in order to make adjustments to the Aileron- to-Rudder mixing value.

4. With the current mix switch on, press the (+) or (-) key to increase or decrease the amount of rudder to be mixed with aileron. If you want to reverse the Rudder Mix direction, press the Clear key, bringing the mixing value to the factory default (0%), and increase the value using the opposite key (+) or (-) from the key originally selected.

5. To access the Elevator-to-Flap Mixing function, press the Down key.

6. To access the Landing Mode function, press the Up key.

7. To exit the Aileron-to-Rudder Mixing function, press the Down and Channel keys simultaneously.

Accessing the Aileron-to-Rudder Mixing Function

AILERON-TO-RUDDER MIXING

6.8

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Press the Clear key to reset to the factory default position.

Mixing switch position

Mixing Value

Landing Mode

Elevator-to-Flap Mixing

Press Channel to access the mixing switch assignment function.

Press the (+) or (-) keys to adjust the mixing value, or to select the mix switch assignment.

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The Aileron-to-Rudder Mixing program can be

turned on and off using several different assignable

switch options. The switches that can be selected are shown to the right of the LCD display below.

1. Place the transmitter power switch in the On position.

2. Access the Function mode. To do so, press the Down and Channel keys simultaneously.

3. Press either the Up or Down key until "AILERUDD" appears in the center portion of your LCD.

4. Press the Channel key to access the switch assignment function.

5. Press the (+) or (-) key to select the desired switch/function to activate the Aileron-to-Rudder Mixing function.

6. To access the Elevator-to-Flap Mixing function, press the Down key.

7. To access the Landing Mode function, press the Up key.

8. To exit the Aileron-to-Rudder Mixing function, press the Down and Channel keys simultaneously.

Assigning the Aileron-to-Rudder Mixing Switch Function

Assigning the Mixing Activation Switch

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Press the Clear key to select the On option.

Mixing switch selected

Selected switch position (On or Off)

Landing Mode

Elevator-to-Flap Mix

Press the Channel key to access the switch assignability option.

Press the (+) or (-) keys to select the desired switch or function to activate the Aileron-to-Rudder Mix.

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The Landing Mode function automatically couples the spoilers to the landing system. This inhibits the use of the AUX 2 lever, preventing activation of the spoilers at any other time than during use of the

landing system. Spoilers are connected to the AUX 2 channel on the receiver. The spoiler activation device will then be linked to the landing position of the Flap Mix switch.

LANDING MODE FUNCTION6.9

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Switch Position

Channel Mixing Value

Channel to be adjusted

Snap Roll Function

Aileron-to-Rudder Mix

Press Channel to select the desired channel to be adjusted.

Press Clear to reset to the factory default position

1. Press the Channel key until "INH" is displayed in the upper portion of the LCD.

2. Press the (+) or (-) keys to inhibit the Aux2 lever. The display will change from "IHN" to "ACT," indicating that the Aux2 switch inhibit function has been activated. To check to see that the Aux2 lever has been de-activated, move the Aux2 lever while at the Aux2 switch selection screen. If the lever is

deactivated, the display will not indicate changes when the switch is pressed.

3. To access the Aileron-to-Rudder Mixing function, press the Down key.

4. To access the Snap Roll function, press the Upkey.

5. To exit the Landing Mode function, press the Down and Channel keys simultaneously.

T o Inhibit the Aux 2 Lever

1. Place the transmitter switch in the On position.

2. Press the Down and Channel keys simultaneously to enter the Function mode. 3 .Press either the Up or Down key until "LAND" appears in the center of the LCD. 4 .Press the Channel key until "THRO" appears at the upper right portion of the LCD.

5. Press the Channel key to select the desired channels to be adjusted.

6. Use the (+) or (-) keys to set the desired landing mode surface positions.

Note: The Flap position switch must be placed in the LAND position for the values of the Landing Mode function to be altered/adjusted. If the display indicates "OFF," values cannot be altered.

Accessing the Landing Mode Function

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When the Automatic Landing Mode function is active, the throttle stick will activate the landing system setup on the preceding page. Any point of throttle stick travel can be set as the auto landing point. Once the throttle stick passes through this point, and the Flap Mix switch is in the land position, the landing system will be activated. Thus, the elevator, flaps and spoilers would be activated if

all were selected. If the Flap Mix switch is not in the Land function, the throttle operation will have no effect on the landing system.

Note: When the Automatic Landing function is active, the letter "A" will appear at the upper right portion of the LCD.

1. Move the transmitter switch to the On position.

2. Press the Down and Channel keys simultaneously to enter the Function Mode.

3. Press either the Up or Down key until "LAND THRO" appears in the upper portion of the LCD, with (-) at the bottom right corner.

3. Set the Flight mode switch in the LAND position (Low).

4. Move the throttle stick to the desired position and press the (+) or (-) key. The (-) on the display will change to indicate the current throttle stick position value, and an "A" will appear at the upper right portion of the display. This is now the auto land

point. To change this value, move the stick to a new position and press the (+) or (-) key. To clear the auto land point, press the Clear key.

5. To access the Aileron-to-Rudder Mixing function, press the Down key.

6. To access the Snap Roll function, press the Upkey.

7. To exit the Automatic Landing Mode function, press the Up and Down keys simultaneously.

Note: When this function is active, the letter "A" will appear at the upper right portion of the LCD.

Automatic Landing System

Accessing the Automatic Landing Mode Function

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Snap Roll Function

Press the Clear key to reset to the factory default position.

Aileron-to-Rudder Mixing

Press the (+) or (-) key to set the Landing Mode position for each channel.

Landing mode function is activated

Current throttle stick activation point

Press the Channel Key to select the desired channel to be adjusted.

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The Snap Roll function allows for easy and consistent snap rolls at the touch of a switch. The X-378 offers four separate directions of snap rolls that you can select by using the keys located on the front of the transmitter.

Selectable snap rolls are as follows:

R-DN Snap Roll Right and Down R-UP Snap Roll Right and Up L-DN Snap Roll Left and Down L-UP Snap Roll Left and Up

The Snap Roll switch affects the aileron, elevator and rudder only; all other functions work as normal. While the snap roll switch is activated, the related sticks will not operate until the switch is released. When this function is inhibited, the display will show "INH" and the snap roll system will not operate. Individual adjustment is available for each control surface in either direction. The adjustable range for each function is 0-125%; the factory default is 100%. When the Snap Roll function is active, the direction will be indicated with the appropriate arrows in the bottom left portion of the normal display screen.

SNAP ROLL FUNCTION

6.10

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Snap Roll type selected

Press Channel key

Differential Aileron Function

Landing Mode Function

Press to select desired channel to be adjusted.

Press the (+) or (-) keys to adjust the value for each channel.

Press the Clear key to reset to the factory default position (100%).

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Once the snap rolls are established in the Function mode, they can be selected using the keys located on the front of the transmitter while in the normal display. The keys shown below will explain how to make these changes.

Note: When the Snap Roll function is active, the snap roll switch will not activate the stopwatch. It can be started and stopped using the (+) or (-) keys.

Caution: When the transmitter is being used as the master transmitter while training, the Snap Roll Function is inhibited.

1. Move the transmitter switch to the On position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Up or Down key until "S.ROLL" appears in the center portion of the LCD.

4. Press the (+) or (-) key until the desired snap roll direction is displayed in the upper portion of the LCD directly above "S.ROLL."

5. Press the Channel key to display each of the three channels with their respective control values. Press the (+) or (-) key to increase or decrease the values for each control. The adjustable value is 0-125%.

AILE - Aileron ELEV - Elevator RUDD - Rudder

6. Press the Channel key until the snap roll direction is displayed again. Press the (+) or (-) key to change the snap roll to the next direction. All four snap rolls, with travel values, can be set Up for each airplane and retained in memory.

7. Repeat Steps 5 and 6 again as needed.

8. To access the Automatic Landing Mode function, press the Down key.

9. To access the Aileron Differential function, press the Up key.

10.To exit the Snap Roll function, press the Down and Channel keys simultaneously.

Accessing the Snap Roll Function

Press to select Right Snap Roll.

Snap Roll Direction Change

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Snap roll direction—the example shown is Right-Down (R-DN)

Press to select Up Snap Roll.

Press to select Down Snap Roll.

Press to select Left Snap Roll.

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The X-378 transmitter offers aileron differential for the flapperon and delta-wing mixing selections. Differential ailerons are used to tailor the flight control system to a particular aircraft. Because the downward travel of the aileron creates more drag than does the upward travel, it is necessary to reduce the amount of down travel for each aileron electronically. This drag may very well produce a yawing tendency in your aircraft. As yaw is undesirable in most, if not all, R/C aircraft, it is best

to correct for this common flight tendency. Aileron differential overcomes the yaw as it reduces the downward travel of the ailerons.

Note: In order to use the Differential function, flaperon or delta-wing mixing must be selected in the System mode, and two servos must be used to operate the ailerons, one each. Refer to the Wing Mixing section for more information.

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

DIFFERENTIAL AILERON MIXING

6.11

Press the Clear key to reset to the factory default position (0%).

Differential Value

Flap Lever Adjustment

Snap Roll Function

Press the (+) or (-) keys to increase the value (range 0-100%).

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

1.Place the transmitter switch in the On position.

2.Press the Down and Channel keys simultaneously to enter the Function mode.

3.Press either the Up or Down key until "DIFF." appears in the upper left corner of the LCD. Press the (+) or (-) key until the desired amount of differential is established. The operating range for differential is 0% (NORM) to 100% (SPLIT). The following diagrams may ease the understanding of the differential aileron.

If left at 0%, the ailerons maintain equal travel for both sides. There will not be any differential whatsoever. If set at 50%, the aileron that is lowered travels 50%, or half, as far as the upward aileron. If adjusted to 100%, you achieve what is commonly referred to as a "split." This means that the only aileron that moves is the aileron that travels upward. The aileron that normally drops remains stationary.

4. To access the Snap Roll function, press the Down key.

5. To access the Flap Lever Adjustment, press the Up key.

6.To exit the Aileron Differential Mixing function, press the Down and Channel keys simultaneously.

Accessing the Differential Aileron Mixing Function

MIXING FUNCTION

NORM: 0% Differential

DIFF: 50% Differential

SPLT: 100% Differential

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FLAP LEVER ADJUSTMENT

6.12

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

The Flap Lever Adjustment function allows the output value of the Flap Channel (Aux1) lever (Front right of TX) to be adjusted to allow for fine or coarse movement of the flaps relative to the Lever.

There are 3 different options for this function, they

are as follows:

TRIM

This function is used in conjunction with the Landing Mode function. When selected, the flaps position can be adjusted using the flap lever while in Landing Mode. This is not a commonly used function. The factory default position is 30%.

OFF

When this function is selected, the flap lever is deactivated. The flaps will now only function through

the Flap Mix switch when the Landing Mode is selected, and a value is given. This is the most commonly used function of the Flap Lever Adjustment function. The factory default position is 0%.

FULL

When this function is selected, the flaps will operate through the flap lever. This function is used only when the Landing Mode function is not selected. The factory default position is 100%.

Please note that if both the Landing Mode and the Full functions are selected, both functions will be operational. This is not a desirable option.

The value of the flap lever can be altered to any desired value using the (+) or (-) keys. This function makes fine-tuning of the flaps very easy.

Press the Clear key to select the desired function (TRIM, OFF, or FULL).

Accessing the Flap Lever Adjustment Function

1. Place the transmitter switch in the On position.

2. Press the Down and Channel keys simultaneously to enter the Function mode.

3. Press either the Up or Down key until "LEVER TRIM" appears in the center of the LCD.

4. Press the Clear key to select the desired function to be adjusted (TRIM, OFF, FULL).

5. Press the (+) or (-) key until the desired amount of flap travel is established.

6. To access the Snap Roll function, press the Down key.

7. To access the Programmable Mix #1 function, press the Up key.

8. To exit the Flap Lever Adjustment function, press the Down and Channel keys simultaneously.

Current value

Programmable Mix #1

Snap Roll Function

Press the (+) or (-) keys to increase or decrease the values as needed.

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PROGRAMMABLE MIXING 1-6

6.13

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

The X-378 offers six programmable mixes to be used for any number of different purposes. This function allows mixing any one channel to any other channel to make the aircraft easier to fly. This mix can remain on at all times or be switched on and off in flight using a number of different switches.

Mix numbers 1-4 are of the standard variety, in that the digital trim for the master channel only affect the master channel, and not the slave channel. Mix numbers 5 and 6 are of the "Trim Include" variety. These mixes are used any time the mix you are performing requires the slave channels trim position to be varied when the master channels digital trim position is varied. An example for this type of mix would be when dual elevator or dual aileron servos are used and connected to two separate channels of the system, rather than using a single channel with a Y-harness.

Each channel of this radio is identified by an abbreviated name. The chart below indicates the channel and its corresponding abbreviation. The channel name appearing first is known as the "master channel" or the channel to which you want to mix. The second number is known as the "slave channel" or the channel that is being mixed into the master channel. For example, "AILE-RUDD" would indicate aileron-to-rudder mixing. Each time the aileron stick is moved, the aileron will deflect, and the rudder will automatically move in the direction and to the value input.

Mixing is proportional, so small inputs of the master channel will produce small outputs of the slave channel. Each programmable mix has a mixing "offset." The purpose of the mixing offset is to redefine the neutral position of the slave channel.

THRO: Throttle AILE: Aileron ELEV: Elevator RUDD: Rudder GEAR: Retract

Landing Gear FLAP: Flap (AUX 1) SPOI: Spoiler

Press the (+) or (-) keys to select the Master channel.

Programmable Mix #2

Flap Lever Adjustment

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1. Place the transmitter switch in the On position.

2. Press the Down and Channel keys simultaneously to enter the Function mode.

3. Press either the Up or Down key until "MIX 1" appears in the upper right portion of the LCD.

Selecting the Master and Slave Mixing Channels

4. Press the (+) key to activate the mix. Next, press the (+) or (-) keys again to select the master channel.

5. Press the Channel key to move the cursor to the slave channel position.

6. Press the (+) or (-) keys to select the slave channel.

7. Press the Channel key once. The display will continue to show the current mixing channels at the top of the LCD, but will now have a flashing arrow at the bottom left of the LCD to indicate the current stick position (master) to be adjusted.

Setting the Mixing Values

8. While holding the master stick in the direction you want to mix, press the (+) or (-) keys to increase or decrease the mixing value for the slave channel. The value at the lower right of the LCD will change to display the current mix value selected. Next, hold the master stick to the other side to adjust the mix for the other direction.

Note: The current mixing switch must be in the On position for the mixing values to be adjusted.

Setting the Mixing Switch Activation

9. Press the Channel key once again. The display will have "SW ON" indicated at the center portion of the

LCD with the word "ON" located in the upper right of the LCD. This indicates the current switch assignment to activate this mix. "ON" indicates that this mix is currently selected to always be active (ON).

Mixing Operation and Switches

Each mixing program can be turned on and off by a lever or switch. The levers and switches that can be selected for program mixing are tabulated at the right with their abbreviations appearing on the display and their corresponding positions.

The mix switch options for Mix #1, 2, and 5-6 are:

ON: Always On MIX: Activated by the RUDD D/R/Mix switch LAND: Activated in the LAND position of the Flap Mix

switch

ELE>F: Activated in the ELEV position of the Flap Mix

switch

The Mix switch options for Mix # 3 and 4 are:

ON: Always On GEAR: Activated by the Gear Switch LAND: Activated in the LAND position of the Flap Mix

switch

ELE>F: Activated in the ELEV position of the Flap Mix

switch

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Accessing the Programmable Mixing Function

Press the Clear key to store the offset value or to reset the mixing values to the factory default positions.

Master Channel

Slave Channel

Stick position to be adjusted

Mixing Value

Mix currently on

Programmable Mix #2

Flap Lever Adjustment Function

Press the Channel key to move through the mixing functions (Master/Slave Channel, Mix Switch Activation, Offset Value)

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Setting the Mixing Channel Offset

1. Press the Channel key once again. The display will show the current mixing channels at the top of the 4 LCD, with the word "OFFSET" at the center of the LCD. The value to the lower right is the mixing Offset neutral point, currently 0.

2. Hold the master stick in the position you want to make the neutral point of the slave channel and push the Clear key. A new value with a (+) or (-) sign will appear. This is the new neutral point for the slave channel (Point that the mix is activated). To reset the value back to 0, move the master stick back to the center position, and press the Clear key to reset.

Note: The master channel trim must be centered for this to reset to 0 using the Clear key.

3. Press the Down and Channel keys simultaneously to exit the Programmable Mix function.

Note: With a little practice, programmable mixing will become easier compared with the first time you try it. The best part of a computer radio is that if you don't like something, you can change it. Mixing is only limited by your imagination.

Setting the Mixing Values

The X-378 transmitter has six multi-purpose programmable mixes available. For these mixing operations, first determine the mix type required (standard 1-4, or trim include 5-6), master and slave channels, offset and operating switch settings, if necessary, and then adjust the mixing value. For setting mixing value, move and hold the master channel control (up, down, left or right) and set the slave servo mix value by pressing either the (+) or (-) keys. To reverse direction of the slave mix, press the opposite of the (+) or (-) keys until the value of mix is set in the reverse direction.

Please also note that if the reference of the offset point is moved (see section below), the slave channel's direction will change from that position.

Setting the Mix Offset Position

Any position of the master channel can be used as a reference (starting) point for mixing. This is useful for channels that have no neutral position. With this function, you can use program mixing with respect to an arbitrary position of the lever/switch. To set the offset position, put the master channel at the desired position and press the Clear key. The position is stored in the memory and its offset value from the neutral position is indicated numerically on the display. Once this offset point has been set, the mixing value at the offset position is now set to zero.

Accessing the Programmable Mixing Function continued

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

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Selecting Flaps (Aux1) for the master channel:

When the slave channel is 2 (aileron), its mixing operation is affected by aileron differential settings. When the slave channel is 6 (flap), its mixing operation is affected by flap-to-aileron mix settings. When dual flaps are selected, and the slave channel is 7 (AUX 2), its mixing operation is affected by the aileron differential settings.

Trim Include Mixes 5 and 6

Programmable Mixes 5 and 6 offer mixing with the Trim Include function. The Trim Include function is automatically activated when mixes 5 and 6 are used.

Mixes 5 and 6 with Trim Include

Whenever the master channel is aileron, elevator, rudder or throttle, you have the option of allowing the master channel's trim lever to mix into the slave channel. The Mixing with Trim function is always activated in Mixes 5 and 6. You can observe the operation by watching the slave channel while moving the master channel's trim lever.

Note: If you have not yet entered values for the mixing percentages, the slave channel will remain stationary. Also, if the mixing percentages are minute, the movement of the slave channel from the trim lever is also minute.

Include Mixing

The Include Mixing function allows other programmed mixing values for the master channel. As stated previously, they Include Mixing function is always activated in Mixes E and F.

For example, Mix 3: AILE - THRO

Mix 6: THRO - RUDD

Mix 6's operating value also now includes the operating value from Mix 3's master channel (Aileron). By moving the aileron control stick, Mix 3 has the ailerons mixing into the throttle, and now also the rudder from Mix 6. At the same time, Mix 6 is mixing the throttle into the rudder only. Since the Include Mixing is always active, you are also mixing your ailerons into the rudder. This results in the aileron stick moving not only the aileron servo but also the throttle and rudder servos.

Include Mixing may sound complex, but it actually eliminates the need for a third mixing program to mix the aileron and rudder channels. Therefore, Include Mixing reduces the number of mixing programs needed when using multiple mixing functions.

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Functions Related to Program Mixing

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The Fail-Safe/Hold function is available only when you use the X-378 transmitter in either of the PCM modulations-S-PCM or Z-PCM. This function is designed to help minimize damage to your aircraft during a loss of signal to the receiver. The servos either assume the fail-safe presets or hold their last good signal position.

Note: In the PCM modulations, the FailSafe/Hold function cannot be totally disabled so that the servos will react to interference in the same way as they do in a PPM (FM) system. This is only possible with

the use of a PPM receiver and the transmitter in the PPM modulation. Since the actual screen appearance varies depending on the modulation of your radio, refer to the appropriate modulation section that follows.

As noted earlier, if you are in the PPM modulation, the Fail-Safe/Hold function is not applicable. Therefore, the Fail-Safe/Hold function will not appear on your LCD screen menu while in the PPM mode. Refer to the Modulation Selection section for more information pertaining to the broadcast signal of your X-378 transmitter.

Hold (Z-PCM)

The Hold function is automatically activated when the radio is turned on and is in the Z-PCM modulation. This function stops (or holds) the servos in the positions they were in just prior to the

interference. Therefore, your aircraft maintains the position held immediately before the interference was experienced. When a clear signal is restored, the Hold function releases, and control of the airplane returns to you.

FAIL SAFE/HOLD FUNCTION (PCM ONLY)

6.14

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

HO: HOLD

0.2: .25 SEC

0.5: .50 SEC

1.0: 1.0 SEC

Move the control sticks to the desired HOLD position, then press Clear to store these positions.

Accessing the Fail-Safe/Hold Function in Z-PCM Modulation

Trainer Function

Programmable Mix 6

Channel to be programmed

Press the (+) or (-) keys to select the desired hold delay time.

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1. Place the transmitter power switch in the On position.

2. Press the Down and Channel keys simultaneously to access the Function mode.

3. Press either the Up or Down key until the "FAIL S" (Fail-Safe) appears in the upper left portion of the LCD.

Note: If "Fail-Safe" does not appear on your LCD, it is because you are transmitting in PPM. Fail-safe is not applicable in the PPM mode. Refer to the Modulation Mode Selection section for more information. You should never attempt to adjust the FailSafe function when the aircraft is running.

When the Fail-Safe function is activated (i.e., when the signal is interrupted), the transmitter automatically moves each servo to a preset position. The position that each servo assumes is determined by you, as is the time length of interference that must occur before servo movement.

After the interference has ceased, control of the aircraft returns immediately to you. There are three time delays to choose from: 0.25 second, 0.5 second and 1.0 second. These time delays are the amount of time it takes, starting the moment the interference occurs, until the servos assume their preset positions.

1. After accessing the Fail-Safe function, adjust the fail-safe presets.

2. Select among the three time delays (.25, .50 or 1.0 second) by pressing the (+) or (-) key until the appropriate delay appears on the screen.

3. Next, hold the transmitter sticks in the positions that you want the servos to assume during signal loss conditions. You can determine fail-safe preset positions for the other channels by placing the other channel switches in the positions that you want them to assume during interference.

4. With the sticks and switches in the desired failsafe positions, touch the Clear key. This will enter these locations as the fail-safe memory settings. A single high-pitched beep will be hear when the Clear key is pressed indicating that the positions have been memorized.

5. To confirm that the input of data was successful, switch the transmitter off. The controls will move to the input locations. If not, repeat Step 4 again.

Note: These preset positions remain stored in the transmitter's memory until both the transmitter battery pack and the lithium back-up battery have been removed (or until data reset has been performed). Therefore, you do not have to reset the Fail-Safe each time you fly. Should you want to re-adjust the Fail-safe presets, access the Fail-Safe function and adjust the presets as you have just done. The transmitter automatically recalls the settings for the last fail-safe adjustment.

7. To access the Programmable Mix 6 function, press the Down key.

8. To access the Trainer function, press the Up key.

9. To exit the Fail-Safe function, press the Downand Channel keys simultaneously.

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Accessing the PCM Hold Function (Z-PCM)

Setting the Fail Safe/Hold Memory in Z-PCM Modulation

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

Fail-Safe/Hold Combination in S-PCM Modualtion

Accessing the Fail-Safe/Hold in S-PCM Modulation

The S-PCM Hold function is automatically activated when the radio is turned on and is in the S-PCM modulation. This function stops (or holds) the servos in the positions they were in just prior to the interference. Therefore, your aircraft maintains the position held immediately before the interference was experienced. When a clear signal is restored, the Hold function releases, and control of the aircraft returns to you.

1. Place the transmitter power switch in the On position.

2. While the power switch is in the On position, press the Down and Channel keys simultaneously to access the Function mode.

3. Press either the Up or Down key until the "FAIL-S" (Fail-Safe) appears in the upper left portion of the LCD.

Note: If "Fail-Safe" does not appear on your LCD, it is because you are transmitting in PPM. fail-safe is not applicable in the PPM mode. Refer to the Modulation Mode Selection section for more information.

The X-378 allows you to combine the Hold and FailSafe presets for all seven channels on the receiver. You can select Fail-Safe or Hold independently for all channels on your aircraft. In other words, some channels will hold their last clear signal position (HOLD), while others assume the preset position (Fail-Safe), Once the Fail-Safe has been activated by signal interruption (interference), the transmitter automatically moves the servos to a preset position.

The predetermined servo positions are set by you. In the S-PCM Fail-Safe, the time delay (the amount of time it takes, starting the moment the interference occurs, until the servos assume the preset positions) is fixed at .25 seconds. After the interference has ceased, normal operation of the aircraft returns to you immediately.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Airplane

1. Select all of the channels for which you want to enter a Fail-Safe preset. To do so, use the Channelkey until the appropriate channel name appears in the upper right portion of the LCD. We will use the Aileron (AILE) for our example. The display will appear as shown above.

2. Press either the (+) or (-) key. This will change the display from Hold (HO) to the Fail-Safe (F.S.) preset display.

3. Repeat Steps 1 and 2 for all channels desired to be set to the Fail-Safe (F.S.) position.

4. Hold all of the appropriate transmitter control sticks and switches in the desired positions and press the Clear key. This will enter the location as the fail-safe memory setting for all channels selected to F.S. When the Clear key is pressed, a single high pitch beep will be heard indicating that the Fail-Safe positions have been stored. Continuing our example, hold the aileron stick to the right and press the Clear key.

6. To confirm that the input of data was successful to the applicable channels, switch the transmitter off.

All channels selected to Fail-Safe (F.S.) should to their selected positions.

Note: These preset positions remain stored in the transmitter's memory until both the transmitter battery pack and the lithium back-up battery have been removed (or until the Data-Reset function has been utilized). Therefore, you do not have to reset the FailSafe each time you fly. Should you want to re-adjust the Fail-Safe preset position, access the Fail-Safe function once again and adjust the presets as you have just done. The transmitter automatically recalls the settings for the latest fail-safe adjustment.

8. To access the Programmable Mix 6 function, press the Down key.

9. To access the Trainer function, press the Up key.

10. To exit the Fail-Safe/Hold function, press the Up and Down keys simultaneously.

Setting the Fail-Safe/Hold Combination in S-PCM Moduation

Indicates Fail-Safe channel to be programmed

Trainer Function

Programmable

Mix 6

Press Channel to select the desired channel to be programmed.

Press the (+) or (-) Keys to select Hold (HO) or Fail-Safe (F.S.) modes for each channel.

Press the Clear key to store the fail-safe servo positions for all channels set to F.S.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE)• Airplane

The X-378 transmitter employs two separate types of trainer systems:

1) Normal Trainer System All functions are controlled by either the master transmitter (MAST) or the slave transmitter (SLAVE).

2) Programmable Function Trainer Individual Channel functions may be assigned to the slave one at a time. Since the control functions can be transferred one by one, students can concentrate on only one function at a time until they are competent to fly solo with all controls.

T rainer System

6.15

Press Clear to reset to the factory default settings (Normal).

Trainer function type selected (N for Normal, P for Programmable)

Trainer Mode (Master or Slave)

Timer Function

Fail-Safe Function (If PCM Modulation is selected)

Press Channel to select the desired channel to be programmed.

Press the (+) or (-) keys to change the settings of each channel.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE)• Airplane

Accessing the Programmable T rainer Function

1.Move the transmitter switch to the On position.

2.Press the Down and Channel keys simultaneously to enter the Function mode.

3. Press the Up or Down keys until "MAST" appears on the center portion of the LCD.

4.Press the Channel key to select the channel to be adjusted. The channel name will be displayed just to the right of "MAST."

5.Once the channel appears that you want to make a slave, press the (+) or (-) key. This will change the display from "MAST" to "SLAVE." The "N" at the upper right portion of the LCD will also change to "P". If you want to make more slave channels, press the Channel key until the next desired channel is shown and press the (+) or (-) key to change the settings.

6. To change the Programmable Trainer Function back to the Normal Trainer System, press the Clear key.

7. To access the Fail-Safe function, press the Downkey.

8. To access the Timer function, press the Up key.

9. To exit the Trainer function, press the Down and Channel keys simultaneously.

Channel to be adjusted

Channel has been set to programmable Trainer mode

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1.The slave transmitter must be PPM (Pulse Position Modulation) and must be equipped with a DSC (Direct Servo Control) or trainer jack. If the slave transmitter is PPM/PCM selectable, select PPM. The master transmitter can be PCM or PPM.

2.Plug the trainer cord (optional part #JRPA130) into each transmitter's DSC/Trainer jack.

Note: Each transmitter will appear to be on, but neither is actually transmitting at this time.

3. Switch the master transmitter on. Do not switch on the slave transmitter; it is only necessary to have the master transmitter on.

Note: If the master transmitter is the X-378, the LCD will indicate "TRINR" (Trainer Master) and will list the channels that have been programmed when the power switch is on.

4.Pull the trainer switch toward you to transfer control to the slave. Releasing the switch automatically reverts to the master transmitter.

5.Be sure the slave transmitter's servo reversing, dual rates, end-point adjustment and trims are identical to the master transmitter. This can be checked by pulling the trainer switch toward you. If the control surfaces move, adjust the slave transmitter until the trainer switch can be activated without a change of the control surface position.

Use of the Normal Trainer System

In this mode, all functions are switched from the master to the slave using the trainer switch. This is the Normal mode–no function setup is necessary to activate this system.

Use of the Programmable Trainer Function

In this mode, the master may assign functions to the student one at a time to make learning to fly easier. For example, the master may assign the slave aileron and elevator. Then, when the trainer switch is activated (pulled forward), the slave has control of aileron and elevator only while the master retains control of throttle and rudder.

Note: When all channels are set to master, the Trainer System becomes Normal.

CHAPTER 6: FUNCTIONS (FUNCTION MODE)• Airplane

Basic Connections and Conditions for T raining

Example of normal display screen indicating trainer master with the normal (N) trainer function selected

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CHAPTER 6: FUNCTIONS (FUNCTION MODE)• Airplane

The X-378 offers two separate types of Timer functions: Countdown and Stopwatch.

The Countdown Timer time is input in 10-second intervals up to 35 minutes. The timer can be set for each individual model and retained in the memory for each model. Once the Timer function has been activated, it can be started and stopped from the Normal display screen using the Channel key. It can also be started and stopped using the snap roll/trainer button located at the front right portion of the transmitter. When the X-378 is being used as the master transmitter in the Training function the

trainer switch will not operate the timer start/stop function, and the timer function cannot be used.

Note: In the Countdown mode, the transmitter will beep three times at :30 seconds, two times at :20 seconds, and beep one time every second from :10 to 0. At zero there will be a continuous tone for 1 second and then the timer will begin counting up with a (+) indication to the left of the time value.

When used as the Stopwatch, the timer will count up to 44 minutes 59 seconds, at which time it will reset to zero and continue to count.

TIMER FUNCTION

6.16

Timer option selected

Timer value set

Servo Reversing

Trainer Function

Press Channel to select timer options (off, down timer, stop watch).

Press the (+) or (=) keys to increase of decrease the time value.

Press Clear to reset the Down timer value to the factory default position (10:00).

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CHAPTER 6: FUNCTIONS (FUNCTION MODE)• Airplane

Accessing the Timer Functions

1.Place the transmitter switch in the On position.

2.Press the Down and Channel keys simultaneously to enter the Function mode.

3. Press either the Up or Down key until "TIMER" is displayed in the left portion of the LCD.

4. Press the Channel Key to select the desired timer option (Off, Down-Timer, Stopwatch)

Setting the Down-Timer value

Pressing the (+) key will change the display to :10 each time the (+) is pressed, and the value will increase in 10-second intervals up to 59:50 minutes. Pressing the Clear key will reset the Countdown Timer to the factory default 10:00 minute value.

To exit the Timer function, press the Down and Channel keys simultaneously.

Indicates current timer value selected

Press the Channel key to start/stop the timer.

Press the Clear key to reset to the assigned timer value.

To access the Trainer function, press the Down key.

To access the Servo Reversing function, press the Up key.

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CHAPTER 7: PRACTICAL APPLICA TIONS• Airplane

PROGRAMMABLE MIXING OPTIONS

7.1

1. "Super" Mix

If 100% of mixing value is not enough, you can use a second mix and mix more (or less, as the case may be) into the original mix. For example: You may want to mix the throttle channel to itself and remove the throttle for certain aerobatic maneuvers. If -100% is not enough, simply use an additional programmable mix (same channels, Offset, mixing switch assignment, etc.) and take the throttle out further.

2. Slow -Speed for Landing Approach

This mix slows down the engine to further ease the landing. This mix can also be used for an engine that idles too "hot" on the ground.

Connections and Mixing Operations

• Utilize one mix-to-mix throttle - throttle (THRO-THRO)

• Slightly adjust the mixing value percentage for the low throttle stick position, -5% for example.

• For the mixing operator switch, it is recommended that you use the land (LAND). Selecting the LAND allows you to employ landing operations simultaneously.

• To achieve the final mixing percentage, fly your aircraft and make adjustments as necessary.

3. Dual-Elevator Servo Operations

This is most applicable in quarter scale aircraft where one servo is not enough for the elevator controls.

Note: By using the Programmable Mix 5 or 6 Functions, a Y-harness is not necessary. This mix also corrects for the common problems of asymmetrical elevator control.

Connections and Mixing Operations

• Connect the elevator servos to the elevator (ELEV) and Auxiliary 2 (AUX 2) channels respectively.

• Use one of your program mixes (5 or 6 only), and mix elevator to AUX 2.

Note: Only mixes 5 and 6 offer the Trim Include Mixing function and it is necessary that the Digital trims also affect the slave channel (AUX

2) for this type of mixing.

With this special mix, your elevator servos function exactly the same as if only one elevator servo were used. Fine adjustments for servo direction and neutral points should be made using Servo Reversing and Sub-Trim functions.

Note: Each servo's adjustments are to be made individually.

For Travel Adjustment values, use the Travel-Adjust function.

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CHAPTER 8: PRACTICAL APPLICA TIONS• Airplane

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1. THRO Throttle Channel

2. AILE Aileron Channel

3. ELEV Elevator Channel

4. RUDD Rudder Channel

5. GEAR Gear Channel

6. AUX 1 Auxiliary 1 Channel (Pitch)

7. AUX 2 Auxiliary 2 Channel (Gyro Sensitivity)

RECEIVER CHANNEL ASSIGNMENT1.2

CONTROL IDENTIFICA TION AND LOCATION

Helicopter Version Transmitter

1.1

SECTION III • CHAPTER 1: SOFTWARE FUNCTIONS • Helicopter

Rudder/Throttle Control/Stick

Digital Rudder Trim Lever

Digital Aileron Trim Lever

Up/Down Scroll Buttons

Channel Key

On/Off Switch

Trainer/Timer Throttle Cut

Flight Mode Switch

Hover Throttle Lever

Gear/Inverted

TX Antenna

AUX2/Hold Rudder D/R Switch

Aileron D/R Switch

Digital Elevator Trim Lever

Aileron/Elevator Control Stick

Increase Decrease Programming Buttons

Clear Key

Neck Strap Eyelet

LCD Display

Elevator DR Switch

Digital Throttle Trim Lever

Hover Pitch Lever

Handle

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Rudder/Throttle Control/Stick

Digital Rudder Trim Lever

Digital Aileron Trim Lever

Up/Down Scroll Buttons

Channel Key

Aileron/Elevator Control Stick

Increase/Decrease Programming Buttons

Clear Key

Neck Strap Eyelet

CHAPTER 1: SOFTWARE FUNCTIONS • Helicopter

1. THRO Throttle Channel

2. AILE Aileron Channel

3. ELEV Elevator Channel

4. RUDD Rudder Channel

5. GEAR Gear Channel

6. AUX 1 Auxiliary 1 Channel (Flap)

7. AUX 2 Auxiliary 2 Channel (Spoiler)

CHANNEL ASSIGNMENT

1. THRO Throttle Channel

2. AILE Aileron Channel

3. ELEV Elevator Channel

4. RUDD Rudder Channel

5. GEAR Gear Channel (Left Aileron Channel–AIL 2)

6. AUX 1 Auxiliary 1 Channel (Left Flap Channel for Dual Flaps)

7. AUX 2 Auxiliary 2 Channel (Right Flap Channel for Dual Flaps)

On/Off Switch

Flap Mixing Switch

Gear Switch

Flap Lever

Snap Roll/Timer/ Trainer Button

Rudder D/R Switch

Aileron D/R Switch

Digital Elevator Trim Lever

LCD Display

Elevator DR Switch

Digital Throttle Trim Lever

AUX 2 Lever

Spoiler/Rudder Control/Stick

Digital Rudder Trim Lever

Digital Aileron Trim Lever

Up/Down Scroll Buttons

Channel Key

Aileron/Elevator Control Stick

Increase/Decrease Programming Buttons

Clear Key

Neck Strap Eyelet

On/Off Switch

Flapperon

Crow Switch

Flap Trim Lever

Timer Trainer Button

AUX2/Hold Rudder D/R Switch

Aileron D/R Switch

Digital Elevator Trim Lever

LCD Display

Elevator DR Switch

Spoiler Trim Lever

Flap Lever

Helicopter Version Transmitter Airplane Mode

Helicopter Version Transmitter–Glider Mode

CHANNEL ASSIGNMENT

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CHAPTER 1: SOFTWARE FUNCTIONS • Helicopter

TRANSMITTER REAR1.3

TRANSMITTER CRYSTAL

CHARGING JACK FOR NI-CD BATTERY ONLY (8N-550)

DSC/ TRAINER JACK

THROTTLE TENSION SCREW

ELEVATOR TENSION SCREW

AILERON TENSION SCREW

RUDDER TENSION SCREW

Transmitter Crystal Replacement Notice

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DIRECT SERVO CONTROL (DSC)1.6

CONTROL STICK LENGTH ADJUSTMENT1.4

For proper DSC hook-up and operation:

1. Leave the transmitter power switch in the Off position. The transmitter will not transmit any radio frequency (RF) in this position.

2. Plug the (supplied) DSC cord into the DSC port in the rear of the transmitter.

3. The encoder section of the transmitter will now be operational and the LCD display will be lit.

4. Plug the other end of the DSC Cord into the receiver charge receptacle. Turn the switch harness to the On position.

Note: When you install the charging jack, be sure to hook the charging jack receptacle securely into the switch harness charge cord.

Why you should use the DSC function:

Note: Under no circumstances should you attempt to fly your aircraft with the DSC cord plugged in! This function is for benchchecking your model only.

A—Charge Cord/DSC Receptacle B—Switch Harness Lead C—Charger/DCS Cord

CONTROL STICK TENSION ADJUSTMENT1.5

Remove the Ni-Cd battery and six transmitter back screws as shown at previous page. Remove the transmitter back, being careful not to cause damage to any components.

CHAPTER 1: SOFTWARE FUNCTIONS • Helicopter

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SET SCREW

LOOSEN

TIGHTEN

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CHAPTER 1: CONNECTIONS • Helicopter

NECK STRAP A TTACHMENT1.7

An eyelet is provided on the face of the XP-378 transmitter that allows you to connect a Neck Strap (JRPA023). This hook has been positioned so that your transmitter has the best possible balance when you use the neck strap.

Note: Double-check to ensure that the neck strap is securely fastened to the transmitter.

BASE LOADED ADJUSTMENT

FREQUENCY NOTES/AIRCRAFT ONLY FREQUENCIES

1.8

1.9

The X-378 transmitter employs a plug-in crystal for transmitter that is glued in place at the time of shipment. Per FCC regulation, the transmitter crystal should only be changed by a certified technician. Changing of the transmitter crystal by a non authorized technician could result in a violation of FCC rules.

The X-378 can transmit in either Pulse Code Modulation (PCM) or Pulse Position Modulation (PPM, commonly referred to as FM).

Be certain to observe the following guidelines:

2. For operation of your X-378 with additional receivers, you should refer to the receiver compatibility chart. The chart is located in the

Modulation Selection Section of this manual.

Aircraft-Only Frequencies

JR RF modules and receivers are available in 72MHz frequencies in the United States for use with model aircraft. Employing 72MHz frequencies does not require a special operator’s license from the Federal Communications Commission (FCC).

* A chart for all available frequencies is located on page 185 of this manual.

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CHAPTER 2: CONNECTIONS • Helicopter

It is extremely important that your radio system be correctly installed in your model. Here are a few suggestions on the installation of your JR equipment:

2. The servos should be mounted using rubber grommets and brass bushings to isolate them from vibration. Do not over-tighten the mounting screws; this will negate the vibration absorption effect of the rubber grommets. The diagram to the right will assist you in properly mounting your servo.

3. The servos must be able to move freely over their entire range of travel. Make sure that the control linkages do not bind or impede the movement of any of the servos.

4. Mount all switches away from the engine exhaust and away from any high vibration areas. Make sure the switch operates freely and is able to operate over its full travel.

5. Mount the receiver antenna firmly to the airplane to ensure that it will not become entangled in the

propeller or control surfaces.

INST ALLATION REQUIREMENTS

CONNECTIONS2.2

2.1

4N600

4.8V 600mAh

JAPAN REMOTE CONTROL CO., LTD.

OFF

GEAR

7 CH 72MHz FM SLIMLINE

RECEIVER

ABC&W INTERFERENCE

PROTECTION SYSTEM

BATT

RUDD ELEV AILE THRO

AUX1

RECEIVER BATTERY 4N-1000

DELUXE SWITCH HARNESS

(JRPA0001)

CHARGECORD OR

D.S.C. RECEPTACLE

(JRPS024)

CHARGECORD OR D.S.C.

D.S.C.-(JRPA132)

CHARGER-(JRPC221)

R700 RECEIVER

AUX 2

GEAR RUDDER

ELEVATOR

AUXILIARY 1/PITCH

AILERON

THROTTLE

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CHAPTER 3: INPUT MODE AND FUNCTION • Helicopter

BA TTERY ALARM AND DISPLAY

CHAPTER 4: ALARM AND ERROR DISPLA Y • Helicopter

4.1

When the transmitter voltage drops below 9.0-volts DC, the display flashes “BATT” and an alarm sounds

seven times. If you are flying when this occurs, land immediately.

KEY INPUT AND DISPLA Y3

The Function Selection keys are used to move up and down through the functions.The Channel key is used to advance the channel or function selected. The

Increase and Decrease keys are used to make changes in the selected functions.

Press both keys at the same time to enter or exit the function mode.

DOWN

CHANNEL

INCREASE

DECREASE

CLEAR/STORE

Hereafter, explanation of all functions in this manual will use the following designations to indicate pressing individual keys:

CLR

BACKUP ERROR DISPLAY4.2

damage caused by improper removal or replacement, only JR Horizon Service Center is authorized to make this change.

DOWN CHANNEL INCREASE

DECREASE

CLEAR

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CHAPTER 5:SYSTEM MODE • Helicopter

NORMAL DISPLA Y5.1

When the power switch is in the On position, the display will read as follows:

DIRECT ACCESS DIGIT AL TRIMS5.2

Displays the current trim value for the

channel being adjusted

Modulation Type

Model Type

Model Number

Elevator Trim

Aileron TrimRudder Trim

Model Name

Throttle Trim

Flight Mode

To enter the System mode, press simultaneously then turn on the power switch. To enter the Function model, turn on the power switch, then press simultaneously.

In the Timer mode, press the Channel key to start/stop the timer, and press the Clear key to reset the timer.

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CHAPTER 5: SYSTEM MODE• Helicopter

1. Press the Up and Down keys simultaneously.

2. Move the power switch to the On (upper) position.

3. Use either the Up or Down to scroll through the menu and access the applicable function.

SYSTEM MODE5.3

To enter the System mode, press the Upand Down keys simultaneously, then turn the power switch to the on position. The display will show the last active program. Pressing either the Up or Down key then scrolls through the functions one by one, according to the system mode flowchart shown below. Once the appropriate function is displayed, changes can be made by pressing the (+) or (-) keys.

System Mode Flowchart

Information pertaining to each function is explained on the page listed next to the function name. Functions will appear in the same order they are shown on this chart.

Accessing the System Mode

Model Selection pg. 75

Model Name Entry pg. 77

Model Type pg. 78

Data Reset pg. 79

Modulation Selection pg. 80

Data Transfer pg. 81

Trim Step pg. 84 Throttle-Cut Switch

Activation pg. 85

Swashplate Type pg. 87

AUX 2 Channel Input Selection pg. 86

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Accessing the Model Selection Function

CHAPTER 5: SYSTEM MODE• Helicopter

1. While pressing the Down and Channel keys, switch the transmitter to the On position to enter the Model Setup mode.

2. Model should be flashing on the right top portion of the LCD. If not, press the Up or Down key until “Model” is displayed and flashing.

3. Pressing the (+) or (-) key will select among each of the eight models available. Notice that as each model is selected, its name appears in the left portion of the LCD.

4. To access the Copy Selection function, press the Channel key.

5. To access the Model Name Entry function, press the Up key.

6. Once the desired model is displayed on the left, pressing the Up and Down keys simultaneously will exit the Model Selection function and establish the model displayed as the new current model.

Note: When changing from one model type to another , it is not necessary to use the Type Selection function. This is done automatically by the computer .

MODEL SELECTION/MODEL COPY SELECT

5.4

Current Model Name

“Model” flashing indicates Model Select Function

Model Name Entry

Swashplate Mixing

Copy Selection

Model Selection

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Accessing the Copy Selection Function

CHAPTER 5: SYSTEM MODE• Helicopter

1. While pressing the Down and Channel keys, move the transmitter’s power switch to the On position.

2. Press either the Up or Down key until “Model” appears flashing on the top right side of the LCD.

3. The number that appears below the flashing “Model” is the current model. This is important to note, as only the current model will be the copied or “from” model. Therefore, it is imperative to retrieve the proper current model prior to initiating the copy sequence. Press the Increase or Decrease keys to select the desired model to be copied.

4. Next, press the Channel key once. The word “Copy” will appear at the top left of the screen indicating that the Copy function has been selected.

5. The large number (1-8) at the bottom center of the LCD indicate the accepting model.

6. Press the Increase or Decrease keys to select the accepting model number.

Note: Always make sure that the accepting model is either free of input or one which you

no longer want to retain in your transmitter’s memory. Once the copying process has been completed, the information of the accepting model is lost and the current model is input as the new data.

7. Once the desired accepting model is selected, press the Clear key to complete the Copy Selection function. The model number at the bottom of the screen will flash several times indicating that the model copy function was successful. The “from” (template) model’s name and data will now replace that of the accepting model.

8. To access the Spoiler Channel Input Select function, press the Down key.

9. To access the Model Naming function, press the Up key.

10. To exit the Copy Selection function, press the Down and Channel keys simultaneously.

The Copy Selection function enables you to copy all of the settings of the current model to another model within the same transmitter. This is very

useful when setting up one aircraft several different ways or when trying an alternative setup of your current model.

Model number to be copied to

Press at Model Select function to access Copy function.

Press Clear to copy current model to model number shown at the bottom of the LCD screen.

Model Copy Select

Model number to be copied

Model Naming

Spoiler Channel Input Select

Press Increase or Decrease to select model number to be copied to.

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Accessing the Model Name Entry Function

CHAPTER 5: SYSTEM MODE• Helicopter

The X-378 allows a 3-digit name to be input for each of the eight models available. The current model will be displayed in the Normal display when the timer is

not active. You may also find this useful to identify different aircraft setups.

1. While pressing the Down and Channel keys, switch the transmitter to the On (upper) position to enter the Model Setup mode.

2. Use the Model Selection function to select the model you want to name. (Please refer to the Model Selection section at this time.)

3. Press either the Up or Down key until the first digit of the model to be named is flashing on the left portion of the LCD.

4. The current name will be displayed in the left portion of the LCD. Pressing the (+) or (-) key will select the first alphanumeric character.

Note: The character being selected will flash.

5. Press the Channel key to advance the character selection to the next character.

6. Repeat this procedure until all three characters are selected.

7. To access the Model Selection function, press the Down key.

8. To access the Type Selection function, press the Up key.

9. To exit the Model Name Entry function, press the Down and Channel keys simultaneously.

MODEL NAME ENTRY

5.5

Model number

Clear Character

Flashing first digit indicates Model Naming function and current character to be changed

Model Type

Model Select

Next Digit

Select Characters

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Accessing the T ype Selection Function

The X-378 is capable of performing as a helicopter, airplane or glider radio with full functions for each.

1. While pressing the Down and Channel keys, switch the transmitter to the On position to enter the Model Setup mode.

2. Press either the Up or Down keys until “Acro,” “Heli,” or “Glid” is displayed in the left portion of the LCD.

3. Pressing either the (+) or (-) key will change the type of model.

4. To access the Model Name Entry function, press the Down key.

5. To access the Data Reset function, press the Up key.

6. To exit the Type Selection function, press the Down and Channel keys simultaneously.

MODEL TYPE SELECTION

5.6

CLR

Model Type

Change model type

Data Reset

Model Naming

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CHAPTER 5: SYSTEM MODE• Helicopter

1. While pressing the Down and Channel keys, switch the transmitter to the On position to enter the Model Setup mode.

2. Press the Up or Down key until “RESET” appears in the center of the LCD display. Check the number at the right side of the display to be sure the model selected is the model you want to reset.

3. To reset data, press the Clearkey.

4. To access the Type Selection function, press the Down key.

5. To access the Modulation Selection function, press the Up key.

6. To exit the Data Reset function, press both the Down and Channel keys simultaneously.

Accessing the Data Reset Function

confirm that you need to reset the data of the currently indicated model in order to prevent accidental loss of your valuable data.

DA T A RESET

5.7

Model number to be reset

Press to data reset current model.

Modulation Select

Model Type

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1. While pressing the Down and Channel keys, move the power switch to the On position to access the System mode.

2. Press either the Up or Down key until “SPCM,” “ZPCM,” or “PPM” appears at the top of the LCD.

3. To change among the modulation types, press either the (+) or (-) keys.

Note: When the Data Reset function is used, the X-378 retains the current modulation selected for each model. This means that the modulation type does not change.

4. Pressing the Clear key will also reset the modulation selection to the factory preset S-PCM.

5. To access the Data Reset function, press the Down key.

6. To access the Data Transfer function, press the Up key.

7. To exit the Modulation Selection function, press the Down and Channel keys simultaneously.

Note: In the normal display, the selected modulation type will appear in the middle of the LCD.

Accessing the Modulation Select Function

within your receiver or from linear PPM (Pulse Position Modulation [FM]).

Refer to the receiver compatibility chart below for the correct modulation.

MODULA TION SELECT

5.8

TX Modulation Compatible Receivers # of Channels &

Brief Description

PPM NER-226 6 (micro) PPM NER-228 8 PPM (FM) NER-327x 7 PPM (FM) NER-527x 7 (micro) PPM (FM) NER-529x 9 (micro) PPM (FM) NER-549 9 PPM NER-600 6 PPM NER-610M 6 PPM NER-700M 7

TX Modulation Compatible Receivers # of Channels &

Brief Description

Z-PCM NER-236 6 (micro) Z-PCM NER-627XZ or

627

“G” series

7 Z-PCM NER-J329P 9 Z-PCM NER-910XZ 10 S-PCM NER-955 10 S-PCM NER-D945 10 S-PCM NER-649S 9

CHAPTER 5: SYSTEM MODE• Helicopter

Modulation

Reset to SPCM modulation

Data Transfer

Data Reset

Change modulation

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The X-378’s Data Transfer function allows for a model from one X-378 transmitter to be sent to another X-378 transmitter by using a JR Trainer Cord (JRPA130 sold separately).

Transmitting Transmitter: It will first be necessary to select the desired model (1-8) to b transferred to the receiving transmitter. Access the Model Select function and select the desired model number to be transferred (See section 5.4 for information)

DA TA TRANSFER FUNCTION

5.9

CHAPTER 5: SYSTEM MODE• Helicopter

Indicates that the DSC cord needs to be inserted, and TX power switch needs to be turned off

Press to select Transmit (TX) or Receive (RX ) modes.

Transmit Mode

Trim Step

Modulation Select

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CHAPTER 5: SYSTEM MODE• Helicopter

2. Press the Channel key to select Transmit (TXDSC) or Receive (RXDSC) modes.

3. Insert the trainer cord into each transmitter, the letters DSC will be removed from the screen.

4. Turn off the power switch on each transmitter. The screen will then change to read either “TXOUT” or “RXSEL”, depending if transmit or receive modes were selected.

Note: It is also possible to access the Data Transfer function as follows:

T ransfer Procedure

Transmitting condition (0% not sent, 100% transfer complete)

Press Clear to begin transmit or receive procedure.

1. With the main TX power switch off, press the Down and Channel keys simultaneously while inserting the trainer cord into the DSC jack of both transmitters. (The transmitters will now be in System mode automatically)

2. Press the Channel key to select transmit (TX) or receive (RX) modes.

3. Both transmitters: In the System mode, press the Up or Down keys until the words “TXOUT” appears on the screen. This is the Data Transfer program.

4. Receiving Mode Transmitter (TX to receive programming): Press the Channel key until the screen

reads “RXSEL.” The word “MODEL” will begin flashing at the top right portion of the LCD directly over the current model number selected.

5. Select the receiving model number by pressing the (+) and (-) keys.

Transmitting Data

6. Press the Clear key to activate the receiving standby mode. The word “RX IN” will now be indicated on the screen.

Model number and program to be transmitted (sent)

Trim Step

Modulation Select

Press Channel to select Transmit (TX) or Receive (RX) modes.

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Indicates receiving condition (0% not started, 100% completed)

Press the (+) or (-) keys to select model number to receive program (1-8) from sending transmitter.

The receiving transmitter must be in this Standby mode before the sending transmitter’s Clearkey is

pressed, or the date will not be transferred successfully.

Current receiving condition (0% not started, 100% completed)

8. Transmitting mode transmitter (TX with program to be sent): Press the Clear key to start transmitting data. If the data transfer was successful, both transmitters will indicate the value 100% on the display when the transmitting is complete.

If there is a data receiving error during transmitting, the counter will stop. At this time, press the Clear key to stop the receiving function. If there is any failure of transferring, the display will appear as follows:

When the receiving counter is stopped or you see “ERROR” indicated, check the trainer cord connection and condition and try again. Be sure that the receiving Mode transmitter is in standby condition first. Then on the transmitting transmitter press the Clear key to start transmitting.

Note: The Data Transfer function will not work when the battery alarm is flashing.

“MODEL” flashing indicates current receiving model number can be selected using the (+) or (-) keys

Trim Step

Modulation Select

Press Channel to select Transmit or receive modes.

Press the Clear key to put the receiving transmitter into Standby mode. The screen will display “RX IN”.

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CHAPTER 5: SYSTEM MODE• Helicopter

step (beep) of the digital trim, the servo will move in digital increments of 4. In other words, if a finer trip step value of 1 is selected, the servo will move in a digital increment of 1 for each step (beep) of the digital trim. If a more coarse trim value of 10 is selected, the servo will more in a digital increment of 10 for each step (beep) of the digital trim lever.

TRIM STEP

5.10

Press Clear to reset to the factory default 4 position.

Throttle Cut

Data Transfer

Press Channel to select channel to be adjusted (Throttle, Aileron, Elevator, Hover Pitch Lever, Hover Throttle Lever).

Press the (+) or (-) keys to increase or decrease the trim step rate.

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THROTTLE CUT SWITCH ACTIVATION

5.11

CHAPTER 5: SYSTEM MODE • Helicopter

Press Clear to reset to the factory off position.

AUX 2 Switch Selection

Trim Step

Press the (+) or (-) keys to turn the Throttle Cut function on and off.

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CHAPTER 5: SYSTEM MODE• Helicopter

Accessing the AUX 2 Channel Input Selection Function

The AUX 2/Gear channel input selection function allows you to select which switch, AUX 2 or Flight mode, will activate the AUX 2 function, as well as activating or inhibiting the Gear switch.If you use the AUX 2 function for the gyro sensitivity adjustment, you can change the rudder dual rate and the gyro

sensitivity at the same time via the Flight mode switch. Conversely, if the AUX 2 switch is used, the gyro sensitivity is changed when the AUX 2 switch is activated.

1. While pressing the Down and Channel keys, switch the transmitter to the on position to enter the System mode.

2. Press either the Up or Down key until “AUX2” is displayed in the center portion of the LCD.

3. Pressing either the Increase or Decrease keys will change the activation switch from the AUX 2 switch to the Flight mode.

4. Pressing the Clear key will reset the AUX 2 activation switch to the AUX 2 switch.

5. Pressing the Channel key will select the Gear channel switch activation.

6. Pressing either the increase or decrease keys will change the switch assignment from INH to Act.

7. Pressing the Clear key will rest the Gear switch to the ACT (Active) position.

5. To access the Throttle Cut switch function, press the Down key.

6. To access the Swashplate Type function, press the Up key.

7. To exit the AUX 2/Gear channel input selection function, press the Down and Channel keys simultaneously.

AUX2/GEAR FUNCTION SELECT

5.12

Gear switch activation

Press Clear to reset to factory settings.

AUX 2 function selection

Swashplate Type

Throttle Cut

Select Gear switch activation

Press Increase or Decrease to change switch options.

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CHAPTER 5: SYSTEM MODE • Helicopter

The Swashplate Mixing function enables the X-378 system to operate many different types of swashplate control systems, including 3 versions of CCPM.

The Swashplate options are:

1 Servo: Non-CCPM, standard mixing type helicopter. 2 Servo/180° CCPM 3 Servo/120° CCPM (JR style, most popular) 3 Servo/90° CCPM

Note: Although the X-378 Swashplate Mixing Type screen displays 4SERV 90 CCPM mixing, this function is actually 3 Servo/90° CCPM mixing, and cannot be used with current 4 Servo/90° CCPM models.

SWASHPLA TE TYPE

5.13

Accessing the Swashplate T ype Function

1. While pressing the Down and Channel keys, switch the transmitter to the ON position to enter the system mode.

2. Press either the Up or Down key until SWASH is displayed in the left center portion of the LCD.

3. Press the Increase or Decrease keys to change the Swashplate type.

4. Pressing the Clear key will reset the Swashplate Type to the Normal position.

5. Pressing the Channel key will select the Gear

Channel switch activation.

6. Pressing the Clear key will rest the Swashplate Type to the factory default (Normal) position.

7. To access the AUX2 Switch function, press the Down key.

8. To access the Model Select function, press the Up key.

8. To exit the Swashplate Type function , press the Down and Channel keys simultaneously.

Model Select

AUX2 Function

Press the + or - keys to select the desired Swashplate Mixing type.

Press Clear to reset to the factory default setting.

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Accessing the Function Mode

Function Mode Flowchart

Information pertaining to each function is explained on the page listed next to the function name. Functions will appear in the same order they are shown on this chart.

1. Move the power switch to the On position.

2. Press the Down and Channel keys simultaneously.

3. Use either the Up or Down to scroll through the menu and access the applicable function.

FUNCTION MODE

6.1

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

Servo Reversing pg.87

Dual-Rate pg.90

Exponential pg.92

Sub-Trim pg.93

Travel Adjust pg.94 CCPM Mixing (only

when CCPM is selected in System Mode) pg.94

Throttle Hold pg.95 Throttle Curves

(3) pg.98 Pitch Curves

(4) pg.101 Inverted Switch

pg.103 Revolution

Mixing pg.104 Gyro Gain

Function pg.106 Programmable

Mixing 1-3 pg.110 Fail-Safe (only visible

when PCM Modulation is selected) pg.114

T rainer Function pg.117

Timer Function pg.119

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

Accessing the Reverse Switch Function

The Reverse Switch function is an electronic means of reversing the throw of a given channel (servo). All seven channels of the X-378 offer reversible servo

direction. This will ease setup during the servo installation into your aircraft.

1. Place the transmitter switch in the on position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Up or Down key until the “REV.” appears in the upper left corner of the LCD.

4. Using your transmitter’s control sticks, switches and potentiometers, move the control surfaces of your aircraft. Note the travel direction of each of the corresponding control surfaces.

5. After you have determined which channel(s) need to have the throw directions reversed, use the Channel key to call up the appropriate channel.

6. Press either the (+) or (-) keys to change the travel direction of the servo. Pressing the Clear key returns the travel direction to normal.

7. You can observe the change in the travel direction by moving the appropriate control at this time.

8. To access the Timer function, press the Down key.

9. To access the Dual-Rate function, press the Upkey.

10. To exit the Reverse Switch function, press the Down and Channel keys simultaneously.

SERVO REVERSING

6.2

Channel to be adjusted

Press Clear to reset to the factory normal direction.

Dual-Rate Function

Timer Function

Press Channel to change to the desired channel to be adjusted.

Press the (+) or (-) keys to change the servo direction.

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Accessing the Dual Rate Function

Dual rates are available for the aileron, elevator and rudder channels of your R/C aircraft. There is also an automatic dual rate setting to link your aileron, elevator, and rudder dual rates to the flight model switch. This Automatic Dual-Rate function is discussed in a separate section that follows. Dual rates may be defined as the ability to vary the travel or throw rate of a servo from a switch. Due to the differing travel rates, you will find that the sensitivity

of the control either increases or decreases accordingly. A higher rate or travel yields a higher overall sensitivity. You may find it easier to think of the Dual-Rate function as double-rates or halfrates.The Dual-Rate function works in conjunction with the Exponential function to allow you to precisely tailor your control throws. You may want to consult the section defining exponential for further information.

1. Place the transmitter power switch in the on position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Upor Down key until “D/R” appears in the upper left corner of the LCD.

4. Press the Channelkey until the desired channel (aileron, elevator, rudder or automatic dual rates) appears.

5. Select the switch position for which you want to adjust the rate. The number to the upper right of the current rate value on the display indicates the current position of the dual rate switch for the

channel that you have selected. Either a 0 or a 1 will be shown, corresponding to the position of the switch. To select the opposite switch position, move the appropriate dual rate switch to the opposite position. The number that appears above the current rate value reflects the change.

DUAL RA TES

6.3

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

Channel to be adjusted

D/R switch position (0 or 1)

Press Clear to reset to factory default settings (100%).

The amount of travel is adjustable from 0-125% in 1% increments. The factory setting, or default value, for both the 0 and 1 switch positions is 100%. Either

switch position may be selected as the low or high rate by placing the switch in the desired position and adjusting the value accordingly.

Exponential

Servo Reversing

Press Channel to select Aileron, Elevator, Rudder, or Auto D/R to be adjusted.

Press (+) or (-) to increase or decrease D/R values.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

Accessing the Dual Rate Function (continued)

Note: You can observe the servo changes by moving the respective stick while increasing or decreasing the values. The control changes accordingly. To clear the dual rate for the respective channel and switch position, press the Clear key. After the dual rates have been dialed in to your satisfaction, we suggest that you begin to adjust the exponential values. Refer to the Exponential section for more information.

7. To access the Servo Reversing function, press the Down key.

8. To access the Exponential function, press the Up key.

9. To exit the Dual-Rate function, press the Downand Channel keys simultaneously.

Automatic Dual Rate

If the Automatic Dual-Rate function AUTO is active (on) when switching the flight mode switch, aileron,

elevator and rudder channel Dual-Rate values are switched to preset values settled by position 1.

Press Clear to return to the factory default setting (off).

Hold (HO).To confirm that the Auto D/R is functioning, simply move the flight mode switch while at any of the normal D/R channel screens. If the Auto D/R is functioning, the screen will indicate “D/RAT“, and the D/R switch position at the far right of the screen will change from 0 to 1 as the switch is moved.

Off or On

Flight mode position to be adjusted

Exponential

Servo Reversing

Press Channel to select the desired flight mode to adjust (1,2 or HO).

Press the (+) or (-) keys to turn the Auto D/R function on or off.

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Accessing the Exponential Function

1. Place the transmitter power switch in the On position.

2. Press the Down and Channel keys simultaneously to access the Function mode.

3. Press either the Up or Down key until “EXP” (Exponential) appears in the upper left corner of the LCD.

4. Press the Channel key until the desired channel (aileron, elevator, rudder or AUTO) appears.

5. Select the switch position for which you want to adjust the exponential rate. The number directly above the exponential value on the display indicates the current position of the dual rate switch for the channel that you have selected. Either a 0 or 1 will be shown, corresponding to the position of the switch. To select the opposite switch position, move the appropriate Dual-Rate or Flight mode switch to the opposite position. The number that appears directly

above the Exponential value will reflect the change.

6. Adjust the rate for the channel and the switch position that you have just selected. To increase the exponential rate, press the (+) key. As stated previously, the adjustable rate is from linear (0%) to100% for each switch position and channel.

Note: Exponential is an acquired feel. As such, it may take several test flights to achieve the proper amount of exponential that fits your flying style.

8. To access the Dual-Rate function, press the Downkey.

9. To access the Sub-Trim function, press the Up key.

10. To exit the Exponential Function, press the Down and Channel keys simultaneously.

EXPONENTIAL6.4

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

CLR

Press Clear to reset values to the factory default position.

Press the (+) or (-) keys to Increase or decrease the Exponential values, or to activate or inhibit the Exponential function in the Auto Dual-Rate modes.

Dual-Rate switch position to be adjusted

Channel to be adjusted

Sub-Trim Function

Dual-Rate Function

Press to select Aileron, Elevator, Rudder, or AUTO position to be adjusted.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

each model stored in the transmitter’s memory. The sub trim functions provides precise servo arm neutral positioning if rotating the servo arm will not allow the desired servo arm position.

1. Place the transmitter power switch in the On position.

2. To access the Function mode, press the Downand Channel keys simultaneously.

3. Press either the Up or Down key until “SUBTRIM” appears in the upper middle portion of the LCD.

4. Press the Channel key until the desired channel appears.

5. Press the (+) or (-) key to establish the desired amount and direction of Sub-Trim.

Note: A (+) or (-) symbol appears to the left of the sub trim value to indicate the direction of Sub-Trim input.

6. To access the Exponential function, press the Down key.

7. To access the T ravel Adjust function, press the Up key.

8. To exit the Sub-Trim function, press the Down and Channel keys simultaneously.

Accessing Sub-T rim Adjustment Function

SUB-TRIM6.5

Press Clear to reset to the factory default settings (0%).

Sub-Trim Value

Channel to be adjusted

Travel Adjust

Exponential

Press to select desired channel to be adjusted (1-7).

Press the (+) or (-) keys to increase or decrease the Sub-Trim value.

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The purpose of travel adjust, also known as endpoint adjustment or adjustable travel volume, is to offer you precise servo control deflection in either direction of servo operation. The X-378 offers travel adjust for all seven channels. The travel adjust range

is from 0-150% (0 degrees to 60 degrees) from neutral, or center, and it can be adjusted for each direction individually. The factory default (data reset) value is 100% for each direction of servo travel.

TRAVEL ADJUST

6.6

Accessing the T ravel Adjust Function

1. Place the transmitter power switch in the On position.

2. Access the Function mode by pressing the Down and Channel keys simultaneously.

3. Press either the Up or Down key until “TRAVL” appears in the upper middle portion of the LCD.

4. Press the Channel key until the desired channel appears.

5. Move the appropriate control stick (lever , switch, etc) to the right or left of center to the direction of travel you want to adjust. An arrow to the right of the travel adjust value will reflect the current position to be adjusted. Using our example above, if the aileron stick is moved to the left, a left-facing arrow will appear to the left of the travel adjust value on the LCD screen.

7. Follow the same procedure for the remaining channels.

8. To access the Sub-Trim function, press the Down key.

9. To access the Throttle Hold (or CCPM Mix if activated) function, press the Up key.

10. To exit the Travel Adjust function, press the Down and Channel keys simultaneously.

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

Press Clear to reset to factory default settings (100 %).

Travel direction to be adjusted (left/Right, Up/Down, etc)

Channel to be adjusted

Throttle Hold (or CCPM Mix if activated)

Sub-Trim

Press Channel to select the desired channel to be adjusted.

Press the (+) or (-) keys to increase or decrease the SubTrim values.

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Note: The CCPM Swashplate Mixing screen is only displayed when Swashplate types 2Serv, 3Serv or 4Serv CCPM are selected in the Swashplate type Selection in System Mode.

If The Swashplate Type option has not been selected, proceed to section 6.7 Throttle Hold.

The CCPM Swashplate Mixing Function(Cyclic Collective Pitch Mixing) of the X-378 is designed to allow the X-378 to be used in model helicopters that utilize 2-servo(180°), 3-servo(120°) and 3-servo(90°) type swashplate control system. The desired swashplate mixing type must first be selected at the Swash Type Selection in System Mode.

1. Place the transmitter power switch in the ON position.

2. Access the Function Mode by pressing the Down and Channel keys simultaneously.

3. Press either the UP or DN key until SWASH appears in the middle left portion of the LCD.

4. Press the Channel key until the desired channel appears.

5. Press the + or - Keys to Increase or Decrease the

CCPM Values, or to access the EXPO function

6. Follow the same procedure for the remaining channels.

8. To access the Travel Adjust Function, press the Down key.

9. To access the Throttle Hold Function, press the Up key.

10. To exit the Swashplate Type Function, press the Down and Channel keys simultaneously.

CCPM SWASHPLA TE MIXING

6.7

Accessing the Swashplate T ype

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

Channel to be adjusted

CCPM Swashplate Mixing Type

Mix Value

Throttle Hold

Travel Adjust

Press Channel to select desired channel and Expo settings.

Press the (+) or (-) keys to adjust the CCPM value for each channel, and also to activate or inhibit the EXPO function.

Press the Clear key to reset the CCPM values back to the factory default positions.

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CCPM is a type of pitch mixing where the two or three servos are connected directly to the swashplate of the helicopter and physically move both together

and independently for all changes in pitch/cyclic. Please refer to the diagram below.

CCPM Swashplate Mixing (continued)

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

1). 1 servo (Standard Mechanical Mixing)

The most common form of Swashplate Mixing. This type uses each of the three servo to move the swashplate individually for pitch, Aileron, and Elevator changes. If one servo(NORM) is selected in the System Mode (Factory Default), the Swashplate Type Function will not appear on the LCD screen in this section.

2). 2 servo(180degrees)

2 servos are used to move the swashplate, and are spaced at 180degrees apart. This is not a very common control system configuration.

3). 3 servo(120degrees)

3 servos are used to move the swashplate, and are spaced at 120degrees apart. This is the most common form of CCPM, and is found in JR and other brands of Helicopters.

4). 3 servo(90degrees)

3 servos are used to move the swashplate, and are spaced at 90degrees apart. This is also not a very common control system configuration.

Note: Although the display of the X-378 indicates 4 Servo 90° CCPM, this is actually 3 Servo 90° CCPM as mentioned above. 3 Servo 90° CCPM can not be used with a 4 Servo 90° CCPM control system.

CCPM Servo Connection/ Channel Numbers

2 servo(180°) 3 servo(120°) 3 servo(90°) Ch 2 Aileron Ch 2 Aileron Ch 2 Aileron

Ch 2 Elevator Ch 3 Elevator Ch 6 Pitch Ch 6 Pitch Ch 6 Pitch

Exponential (EXP)

The purpose of this exponential is to remove the non- linear, or rough movement of the swashplate due to the mechanical differential of the servo horn. This will be a help to change circular movement of servo horn to linear movement. The Exponential function can be turned on and off by selecting the EXP function with the Channel key, and then pressing the (+) or (-) keys .

3 Servo/90° CCPM

2 Servo/180° CCPM

Ch2

Ch6

Ch3

3 Servo/120° CCPM

(JR style, most popular)

CCPM Servo Variations

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1. Place the transmitter switch in the on position.

2. Press the Down and Channel keys simultaneously to enter the Function mode.

3. Press either the Up or Down key until “HOLD” appears at the top center of the LCD.

4. The factory setting for the throttle hold is off. Pressing either the (+) or (-) key will activate Throttle Hold and display the current throttle hold value.

5. Using the (+) or (-) key, adjust the throttle hold value to deliver the proper engine idle rpm for your helicopter . The adjustable range is (-20%-+50%). Once you establish the proper idle value for your engine, you can use this value for throttle hold as well. To shut the

engine off for autorotation, a negative or zero value should be input.

Note: When the throttle hold is activated, and the switch is on, the ‘’ON“ indication on the LCD flashes.

6. To access the Travel Adjust (or CCPM Mix if activated) function, press the Down key.

7. To access the Throttle Curve function, press the Up key.

8. To exit the Throttle Hold function, press the Down and Channel keys simultaneously.

Accessing the Throttle Hold Function

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

The Throttle Hold function is designed to hold the throttle servo in a specific position during an autorotation. This is very useful for practicing autorotation landings. The throttle hold switch is

located on the top right-rear corner of the transmitter. The throttle hold is on in the forward switch position; in the rear position, the Throttle Hold is off.

THROTTLE HOLD

6.8

Press Clear to reset to the factory default setting (off).

Throttle Hold Value (+ or -)

“ON” will flash when the Throttle Hold function is activated, and the switch is in the On position.

Press the (+) or (-) keys to activate the Throttle Hold function and set the desired value.

Throttle Curve Function

Travel Adjust (or CCPM Mix if activated)

Press the (+) or (-) keys to activate and adjust the Throttle Hold value.

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The transmitter is factory preset to the throttle curve as indicated by the solid line in the figure at right. Individual middle points can be increased or decreased to suit your specific needs.

The throttle trim lever position will affect the low-point position as shown when in the Normal mode Throttle Curve.

CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

The X-378 offers three (3) separate throttle curves with five adjustable points per curve. This function allows you to customize the throttle curve and pitch curve together to maximize engine performance at a particular pitch setting. Once the throttle curves are established, each can be activated in flight using the three (3) position flight mode switch. The flight mode switch offers three selectable ranges: N=Normal, 1=Stunt-1, and 2=Stunt-2. The N (Normal) position should be used as the hover throttle curve. Positions 1 and 2 (Stunt-1 and Stunt-2) should be used for aerobatic maneuvers and forward flight.

Note: The throttle trim and hovering throttle levers are only operable when the flight mode switch is in the normal position. Thus, in the 1 or 2 positions, these two functions have no effect. Also, adjusting the hovering throttle lever and throttle trim has no effect on the input values of the throttle curve.

Each of the five points of the throttle curve are independently adjustable from 0-100%. These five points correspond to the position of the throttle stick. The illustration below shows the normal throttle curve setting for the dead slow position with throttle trim at default.

THROTTLE CURVES

6.9

CLR

Press Clear to reset to the factory default settings.

Output Value

100%

50%

H321

(INH) (INH)

Hovering Throttle Knob

Operating Range

Throttle T rim

Operating Range

Point L

Throttle Stick

Flight Mode (normal)

Throttle stick input position

Point to be adjusted (L,1,2,3,H)

Point Value

Press Up to access Throttle Curve modes for Stunt 1 and 2.

Throttle Hold

Press to select point position to be adjusted (L,1,2,3,or H).

Press (+) or (-) to activate points 1 and 3, and also to increase or decrease the point values.

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

Accessing the Throttle Curve Function

1. Place the transmitter switch in the On position.

2. Press the Down and Channel keys simultaneously to enter the Function Mode.

3. Press either the Up or Down key until “THRO” appears in the upper right portion of the LCD.

Note: The characters directly under the battery graph at the top left of the LCD is the Flight mode switch position curve currently being adjusted. Use NORM for hover curves and 1 and 2 for stunt curves. We will concentrate on the hovering curve during this example.

4. Press the Channel key to select the point of the curve you want to change.

5. Press either the (+) or (-) key to change the value of the current curve point. The range of each point is 0-100% in .5% intervals.

Note: In each curve, the factory setting indicates INH for points 1 and 3. These values

are 25% and 75% respectively if no value changes are made to any other points. If any of the other points have been changed while these points were inhibited, the inhibited points will also change to plot a smooth curve. If you want to keep this from happening, press the Channel key until the display indicates P-1 or P-3 at the upper right portion of the LCD. Press either the (+) or (-) key to activate the points 1 (25%) or 3 (75%). The values for each of these curves can then be fully adjusted by pressing either the (+) or (-) key.

6. To set curves for flight mode switch position 1, press the Up key once and repeat steps 4 and 5.

7. To set curves for flight mode switch position 2, press the Up key once and repeat steps 4 and 5.

8. To access the Throttle Hold function, press the Down key until “HOLD” is displayed.

9. To exit the Throttle Curve function, press the Down and Channel keys simultaneously.

25% value indicates that point #1 is now activated

The throttle trim lever is only active when the flight mode switch is in the normal position. The throttle trim is used to increase or decrease the engine power when the flight mode switch is in the Normal mode. The throttle trim lever has no effect on positions 1, 2, or in throttle hold.

Note: Making changes to the throttle trim lever does not change the input values for any of the points on the throttle curve; it merely makes adjustments to the engine idle speed position.

Throttle T rim Settings

-- Lines on screen indicate that point #1 is Inhibited

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CHAPTER 6: FUNCTIONS (FUNCTION MODE) • Helicopter

The Hovering Throttle lever increases or decreases the engine output power for the middle three points set for the throttle curve. As shown in the figure below, use of the hovering throttle lever shifts the

curve upward or downward parallel with the original curve. Therefore, operation of the hovering throttle knob does not cause any change to the original settings of the throttle curve.

Hovering Throttle Lever Setting

100%

50%

H32

Hovering Throttle Knob

Operating Range (Parallel)

Throttle T rim

Operating Range

Point L

Throttle Stick

The throttle trim range will affect the throttle curve as shown.

The adjustable range of output using the hovering throttle lever is approximately +/-9%.

Note: The Hovering Throttle has no effect on flight mode switch positions 1 and 2.

With the X-378 system, individual throttle curves are selectable to be either straight (linear) or curved (exponential) setting.With the exponential function on, you will notice that any sharp angles of the throttle curve will become more “rounded” or “smooth”, creating more equal throttle servo movement during the entire curve range.

Throttle Curve Exponential

1. From the Throttle Curve function, press the Channel key until “EXP” appears at the center of the LCD screen.

2. Press the (+) or (-) keys to turn the Exponential function on or off.

3. To exit the Throttle Curve function, press the Down and Channel keys simultaneuosly.

Accessing the Throttle Curve Exponential Function

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