Spectrum DX3 Manual

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3-Channel, 3-Model Memory

DSM Racing System

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Summary of Contents for Spectrum DX3

Page 1 3-Channel, 3-Model Memory DSM Racing System...
Page 2: Table Of Contents
Table of Alternate Languages ....................2 Introduction ......................3 Contents DX3 Quick Start Setup ................... 3 DX3 with Digital Spectrum Modulation ..............6 Binding ........................6 Antenna ........................7 Direct Trim Access ....................8 System Features ..................... 9 Control Identiﬁcation and Location ..............10 R/C Safety Precautions ..................
Page 3: Introduction
DX3 Quick Included in this manual are in-depth instructions detailing all the steps and procedures needed to program each of the DX3’s functions. For those racers who want to get to the Start Setup track fast, we have provided the Quick Start section below. Quick Start covers the basic programming information necessary to get you racing right away.
Page 4 DX3 Quick Servo Reversing Start Setup Indicates Current Channel ST = Steering (continued) TH = Throttle FN3 = Channel 3 (optional) – REV • NORM Indicates Current Servo Direction ENTER SYSTEM MODE CHANNEL 1. With the transmitter power switch on, press the MODE key to enter the Function Mode.
Page 5 DX3 Quick Travel Adjustment Indicates Current Adjustment Position STR = Steering Right Start Setup STL = Steering Left (continued) FWD = Forward Trigger TRV ADJ. BRM = Reverse (brake) Trigger F3+ = Third Channel (optional) Indicates Current Value ENTER SYSTEM MODE 1.
Page 6: Dx3 With Digital Spectrum Modulation
DSS spread spectrum system interfering with another are astronomically remote. The 2.4GHz spectrum has a capacity of 79 channels. In the unlikely event that the spectrum is full, the 80th system will not connect or cause any interference going into hold scan until a channel is free.
Page 7: Antenna
Binding 4. With the transmitter off, place the transmitter steering wheel, throttle trigger and auxiliary channels in their desired fail-safe positions (normally brake and straight (continued) ahead steering). LED and Bind Button 5. Press and hold the bind button on the transmitter while turning on the transmitter.
Page 8: Direct Trim Access
Direct Trim Servo Trim Adjustment Access Indicates Steering Trim Function Indicates Current Value Indicates Throttle Trim Function Indicates Current Value Indicates Channel 3 Function Indicates Current Value Steering Servo Trim Adjustment: 1. With the transmitter power switch on, move the digital steering trim lever in the desired position to be adjusted.
Page 9: System Features
System • DSM 2.4GHz Spread Spectrum Modulation • Three channels Features • Easy-to-read LCD graphics display • Three-model memory • Three-character model name entry • Electronic digital trim levers for throttle and steering • Two assignable electronic grip levers • Third channel accessible through Grip Dial A •...
Page 10: Control Identiﬁcation And Location
Control Identiﬁcation and Location �� * To remove the Battery Cover, press down where it says “press” and push the cover in the direction of the arrow.
Page 11: R/C Safety Precautions
JR® style wall chargers. Please do not attempt to use any other brand of wall charger as it may be reverse polarity and can cause damage to your system. Only use the JR type wall charger when the DX3 is equipped with Ni-Cd batteries (available separately, JRPB958). Spektrum Transmitter Charge Jack Polarity: �...
Page 12: Receiver Connections And Installation
Receiver Note: When using a separate receiver Ni-Cd as a power source, the operating voltage range is 4.8–6.0V (4–5 cells) Connections Attention: Make sure the male and female connectors have the correct polarity (+/–) before connecting. Be sure to orient the servo plug correctly for proper insertion. Installation Most electronic speed controllers are set up for B.E.C.
Page 13: Servo Layout
Servo Layout Note: Rubber �� grommets (and �� sometimes eyelets) �� are used in fuel- powered vehicles. �� Key Input and MODE Used to move up through the available functions Display CHANNEL Used to select the desired channel INCREASE Used to increase the value of the selected function...
Page 14: Display Screens
10.2 Low Battery Screen/Lithium Battery Backup When the voltage of the eight “AA” batteries drops below 9.0 volts, the DX3’s display screen will alternate between the Normal (see above) and Low Battery screen (BAT), and a continuous beeping will occur, indicating that the batteries need to be replaced...
Page 15 If you switch the power off and on again, and transmitter is in the default mode with all data lost, it is suggested that the DX3 transmitter be returned to the Horizon Service Center for servicing (see Warranty Information, page 38).
Page 16: Accessing The System Mode
Accessing the To enter the System Mode, press both the MODE and CHANNEL keys at the same time while turning on the transmitter power switch. By pressing the MODE key, you can now System Mode select the model name input, data reset function or channel 3 function as shown here on the System Mode ﬂow chart.
Page 17: Model Name Entry (System Mode)
Model Name The DX3 allows a three-character name to be input for each of the three (3) models available. The current model, with name, will then be displayed in the Normal display screen. This Entry feature is useful to help identify different models, setups, etc. For information on selecting (System Mode) models 1, 2 or 3, please refer to the Model Select Function (page 23).
Page 18: Data Reset (System Mode)
Data Reset The Data Reset function allows you to reset all the programming in the selected model (1, 2 or 3) to the factory default settings. Before using the Data Reset function, it’s important to (System Mode) enter the Model Select function and check to make sure the current model number indicated (1, 2 or 3) is the model to which you want to reset to the factory default settings.
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Page 20: Channel 3 Function Select (System Mode)
Channel 3 The Channel 3 function of the DX3 allows you to select from 2 different types of Channel 3 servo travel movements, or to inhibit the Channel 3 function so that the Grip Dial A can be Function used to operate the brake endpoint adjustment feature. Use the information below to select the correct Channel 3 function type for your particular installation.
Page 21 Channel 3 Accessing the Channel 3 Function Function To access the Channel 3 function, follow the steps below: Select Press and hold the MODE and (continued) ENTER CHANNEL keys at the same time to SYSTEM MODE CHANNEL enter the System Mode. Next, press the MODE key twice until FN3 appears.
Page 22: Accessing The Function Mode
Accessing To enter the function mode, it’s necessary to ﬁrst turn on the transmitter’s power switch. Next, press the MODE key until a beep is heard. The display will change to show the ﬁrst function the Function listed on the Function Mode ﬂow chart as shown below. Press the MODE key to scroll down through the functions one by one, as shown in the ﬂow chart.
Page 23: Model Select (Function Mode)
Model Select The DX3 has memory for three (3) models. This feature allows for three different models to be operated with the same transmitter (additional receivers and servos must be purchased (Function Mode) separately), or one model with three (3) different race setups.
Page 24: Travel Adjust (Function Mode)
Travel Adjust The Travel Adjust feature of the DX3 allows the maximum travel of both the steering, throttle and Channel 3 (optional) servos to be increased or decreased in each direction to achieve (Function Mode) the exact servo movement needed. The adjustment range is from 0 % to 125%. The travel adjustment is factory set to 100% for both channels.
Page 25 Travel Adjust Accessing the Travel Adjust Function (Function Mode) To access the Travel Adjust feature, follow the step below: (Continued) Press the CHANNEL key to ENTER Press the MODE key until TRV select the channel to be adjusted SYSTEM MODE CHANNEL ADJ appears on the screen (steering or throttle)
Page 26: Steering Rate (Function Mode)
Steering Rate The Steering Rate feature of the DX3 allows the steering servo travel to be increased or decreased to the desired amount required. The values of the Steering Rate function are a (Function Mode) percentage based from the travel adjust value set in the Travel Adjust section.
Page 27: Sub-Trim (Function Mode)
Sub-Trim The Sub-Trim function of the DX3 is an electronic trimming feature that allows the neutral position of the servo on the steering, throttle or third channel (optional) to be moved, while (Function Mode) allowing the electronic trim lever for that channel to remain in the center position. This feature is very useful as it allows the servo arm/wheel position to be moved to help with control linkage installation, eliminating the need to make mechanical linkage adjustments.
Page 28: Servo Reversing (Function Mode)
Servo The Servo Reversing feature of the DX3 is a very convenient feature when setting up a new model. The purpose of the servo reversing function is to change the direction of the servo Reversing rotation in relation to the wheel/trigger movement. The Servo Reversing function is available (Function Mode) for the steering, throttle and Channel 3 of the DX3.
Page 29: Accessing The Direct Trim Mode
Accessing the The Direct Trim Mode function of the DX3 is accessible through the use of the electronic throttle or steering trim levers, as well as the two electronic grip levers (A&B) located on Direct Trim the upper portion of the grip handle. This function allows for quick trim adjustment of these controls, without the need to access these functions through the four keypad control keys.
Page 30: Steering Trim (Stt)
Steering Trim The DX3 electronic steering trim lever, located just above the steering wheel, allows the center position of the servo to be manipulated in either direction to achieve precise centering (STT) of the steering assembly. Steering Travel Adjustment values (page 24) remain completely independent from the steering trim, unless the trim value exceeds the selected endpoint values.
Page 31: Throttle Trim (Tht)
Throttle Trim The DX3’s electronic throttle trim lever, located to the right of the steering wheel, allows the center position of the servo to be manipulated in either direction to achieve precise centering (THT) of the throttle trigger neutral position. Throttle endpoint adjustment values (page 24) remain completely independent from the throttle trim, unless the trim value exceeds the selected endpoint values.
Page 32: Grip Lever B: Steering Dual Rate Trim Adjustment Stg
Grip Lever B: The steering dual rate adjustment, located at Grip Lever B, allows the dual rate value (maximum servo travel) to be increased or decreased within a range from 100% through Steering Dual 40% of the total dual rate value established in the Steering Rate function (page 26). This function is very useful in race conditions as it allows you to custom tailor the steering radius Rate Trim and sensitivity for the current track conditions.
Page 33: Grip Lever A: Brake Endpoint Adjustment Brg
Grip Lever A: The brake endpoint adjustment, located at Grip Lever A, allows the maximum servo travel on the braking side of the throttle trigger to be increased or decreased from 100% to 0% Brake Endpoint (off). This function is very useful in race conditions as it allows the racer to custom tailor Adjustment BRG the “panic”...
Page 34: Channel 3 Access (Fuel Mixture)
Channel 3 When selected, the Grip Lever A can also be used to access the Channel 3 function of the DX3 for use as a fuel mixture channel or transmission shift selector. Access (Fuel Mixture) Channel 3 Fuel Mixture control (LN selected)
Page 35: Dx3 Data Sheet
DX3 Data Sheet �� ...
Page 36 DX3 Data Sheet �� ...
Page 37 DX3 Data Sheet �� ...
Page 38: Warranty And Service Information
Warranty Spektrum 1-Year Warranty This Spektrum™ product is guaranteed against workmanship and manufacturing defects for and Service a period of 1 year from the original date of purchase. This warranty is limited to the original Information purchaser and cannot be transferred. Warranty repair will cover all units except those that have been modiﬁed, misused, improperly installed, or serviced by an unauthorized service center.
Page 39 Notes...
Page 40 0 5 4 8 2 0 0 1 0 5 © 2005 Horizon Hobby, Inc. 4105 Fieldstone Road Champaign, Illinois 61822 (877) 504-0233 horizonhobby.com SPMM100 #7671...

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