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TaBLE OF cOnTEnTS Introduction......................................................................................................................................................................... Page 3 Safety ............................................................................................................................................................................. Page 3 FCC Compliance Statement ............................................................................................
We appreciate your purchase of the new Sanwa Gemini X 2.4GHz FHSS-3 radio control system. This Operating Manual is intended to acquaint you with the many unique features of your state of the art radio control system. Please read this operating manual carefully so that you may obtain maximum success and enjoyment from the operation of your new radio control system. The Gemini X 2.
USagE PREcaUTiOnS In addition to the Safety and FCC Compliance sections on the previous page, please observe the following precautions when installing and using your new Sanwa Gemini X 2.4GHz FHSS-3 radio control system. 2.4gHz FREqUEncY BanD PREcaUTiOnS l l l The 2.4GHz frequency band may be used by other devices, or other devices in the immediate area may cause interference on the same frequency band. Always before use, conduct a bench test to ensure that the servos operate properly.
FEaTURES anD SPEciFicaTiOnS l 3-Channel 2-Stick 2.4GHz Computer Radio with Advanced Programming for Competition Cars, Trucks, and Boats l Compatible with All Current Sanwa and Airtronics 2.
FEaTURES FaMiLiaRizaTiOn SERvO cOnnEcTORS The RX-451 4-Channel receiver included with your Gemini X 2.4GHz FHSS-3 radio control system uses universal 'Z' connectors which are electronically compatible with the servos of other radio control system manufacturers. The connectors are rugged, but should be handled with care. When unplugging the servo connector, it's best not to pull on the servo wire itself. This could result in damage to the servo wire pins in the plastic plug.
FEaTURES FaMiLiaRizaTiOn GENERAL TRanSMiTTER FEaTURES DiagRaMS, cOnTinUED.... Back Programming Toggle Switch Programming Toggle Switch Battery Compartment Charging Jack REcEivER FEaTURES DiagRaM Use the diagram at right to familiarize yourself with the RX-451 4-Channel receiver included with your Gemini X 2.4GHz FHSS-3 radio control system. Descriptions of these features can be found below and continued on page 8.
FEaTURES FaMiLiaRizaTiOn FEaTURES DEScRiPTiOnS, cOnTinUED.... Auxiliary Switch (Channel 3): The Auxiliary Switch controls different options, depending on your programming preferences. In the default configuration, the Auxiliary Switch controls Auxiliary Channel 3. In addition, the Auxiliary Switch is used to program and control the different Mixes that are available. Battery Compartment: Houses the 4 'AA' Alkaline cells that power the transmitter.
FEaTURES FaMiLiaRizaTiOn cOnTROL STick SPRing TEnSiOn aDjUSTMEnT, cOnTinUED.... GENERAL 4) To increase the spring tension of the control sticks, tighten (turn clockwise) the adjustment screws (A). To decrease the spring tension of the control sticks, loosen (turn counterclockwise) the adjustment screws (A). 5) When satisfied with the results, carefully reinstall the back half of the transmitter. In the default configuration, the spring tension is preset to a soft feel.
FEaTURES FaMiLiaRizaTiOn REcEivER cOnnEcTiOnS anD MOUnTing Use the diagram below to make the connections to the RX-451 4-Channel receiver. The RX-451 receiver's Nominal Input Voltage is 4.8v ~ 7.4v. This means that a 2 cell Li-Po or 2 cell Li-Fe battery can safely be used to power the receiver without the use of a voltage regulator 1) Install four fresh 'AA' Alkaline batteries into the battery holder, making sure that the polarity is correct.
The Gemini X 2.4GHz FHSS-3 transmitter features four Programming Keys and two Toggle Switches that are used to facilitate transmitter programming. The four Programming Keys consist of two MENU Keys (Right and Left), one +/INC (Increase) Key, and one DEC/- (Decrease) Key. This section summarizes the functions of each of the 4 Programming Keys and the two Toggle Switches, in addition to describing the main areas of the Multi-Function LCD.
LcD anD PROgRaMMing kEYS PROgRaMMing kEY anD TOggLE SwiTcH SHORTcUTS The Programming Keys and Toggle Switches can be used to change important information displayed in the Programming Window. The information that can be displayed will vary depending on what menu you're currently in and/or what is currently displayed in the Programming Window.
The Menu Flow Chart shows the different menus that are available for programming your transmitter. The default setting when the transmitter is turned ON the very first time is the PROGRAMMING menu with the Digital Voltage Indicator displayed. When the transmitter is subsequently turned ON, the last screen displayed when the transmitter was turned OFF will be displayed. Pressing either the Right MENU key or the Left MENU key scrolls through the individual functions assigned to the currently highlighted menu.
TRanSMiTTER anD REcEivER BinDing The Binding function allows you to 'Bind' the transmitter and receiver pair. When new, it is necessary to pair the transmitter and receiver to prevent interference from transmitters operated by other users. This operation is referred to as 'Binding'. Once the Binding process is complete, the setting is remembered even when the transmitter and receiver are turned OFF. Therefore, this procedure usually only needs to be done once.
[PROgRaMMing MEnU To enter the PROGRAMMING menu, turn the transmitter ON. when the transmitter is turned ON the very first time is the PROGRAMMING menu with the Digital Voltage Indicator displayed. When the transmitter is subsequently turned ON, the last screen displayed when the transmitter was turned OFF will be displayed.
[PROgRaMMing MEnU Adjusting Steering Dual Rate 1) Press the Right or Left MENU key to highlight the D/R menu. ST 100% will be displayed in the Programming Window. 2) Press the +/INC or DEC/- keys to increase or decrease the Steering Dual Rate percentage value. When the Steering Dual Rate percentage value is decreased, steering servo travel is decreased. When the Steering Dual Rate percentage value is increased, steering servo travel is increased. D/R ST setting range is 0% to 100%.
[PROgRaMMing MEnU Adjusting Steering End Point Adjustment, Continued.... 2) To set the Right Steering End Point Adjustment percentage value, push and the steering control stick to the right. R 100% will be displayed. Press the +/INC or DEC/- keys to increase or decrease the amount of steering servo travel in that direction. EPA ST R setting range is 0% to 150%. The default setting is 100%. 3) To set the Left Steering End Point Adjustment percentage value, push the steering control stick to the left.
[PROgRaMMing MEnU Adjusting Throttle End Point Adjustment, Continued.... 3) To set the Throttle Brake End Point Adjustment percentage value, pull the throttle control stick back. B 100% will be displayed. Press the +/INC or DEC/- keys to increase or decrease the amount of throttle servo travel in the Brake direction. EPA TH B setting range is 0% to 160%. The default setting is 100%. Adjusting Auxiliary Channel 3 End Point Adjustment Auxiliary Channel 3 can be used for a number of different uses.
[PROgRaMMing MEnU EXP - EXPOnEnTiaL Amount of steering control stick operation on the 'L' side or the amount of throttle control stick operation on the 'H' side. Amount of steering control stick operation on the 'R' side or the amount of throttle control stick operation on the 'B' side. Adjusting Steering Exponential Steering Exponential can be variably adjusted from Mild through Linear to Quick to allow you to set the most effective steering response for your model.
[PROgRaMMing MEnU Adjusting Throttle High Exponential, Continued.... 2) Press the +/INC or DEC/- keys to increase or decrease the Throttle High side Exponential percentage value. Decreasing the Throttle High Exponential percentage value will make the throttle less sensitive around neutral and increasing the Throttle High Exponential percentage value will make the throttle more sensitive around neutral. EXP-TH H setting range is -100% (Mild) to 100% (Quick). The default setting is 0% (Linear).
[PROgRaMMing MEnU Adjusting Steering Speed - Forward and Return to Center, Continued.... 2) Press the +/INC or DEC/- keys to decrease the Steering Speed Forward percentage value. Decreasing the Steering Speed Forward percentage value will cause the steering servo transit time to slow down in the Forward direction. SPEED-ST F setting range is 0% to -100%. The default setting is 0%. 4) Press the +/INC or DEC/- keys to decrease the Steering Speed Return to Center percentage value.
[PROgRaMMing MEnU aUX - aUXiLiaRY PROgRaMMing The Auxiliary Programming function allows you to select, program, then use several different Mixes and other options specific to Auxiliary Channel 3. These include Point Auxiliary, Dig, Burn, Brake Mixing, and more. The Auxiliary Switch is an integral part of the Auxiliary Programming function. It is used not only during programming, but it is also used to turn Mixes ON and OFF, and to operate Auxiliary Channel 3.
[PROgRaMMing MEnU Auxiliary Channel 3 ON-OFF, Continued.... 2) To control Auxiliary Channel 3, move the Auxiliary Switch UP (HIGH) and DOWN (LOW). When you move the Auxiliary Switch UP, HIGH will momentarily displayed in the Programming Window and the Auxiliary Channel 3 servo will travel to its High position. When you move the Auxiliary Switch DOWN, LOW will momentarily be displayed in the Programming Window and the Auxiliary Channel 3 servo will travel to its Low position.
[PROgRaMMing MEnU Choosing the Number of Points, Continued.... 2) Press the +/INC or DEC/- keys to choose the number of Points you would like to program. You cannot choose fewer than 2 Points. AUX-P setting range is 2 to 6. The default setting is 6. Choosing Point Values 1) Move the Auxiliary Switch to the ON position (pushed UP). The last defined Point, along with it's current Point value will be displayed, and AUX will flash in the Programming Window.
[PROgRaMMing MEnU S_ aUX - STEP aUXiLiaRY The Step Auxiliary function allows you to program Auxiliary Channel 3 to move in defined Step amounts throughout its entire range of travel. Step values can be defined, then you can move the Auxiliary Channel 3 servo in those Step amounts, using either the TRM switch, by pressing the +/INC and DEC/- keys, or using the Toggle Switches.
[PROgRaMMing MEnU Activating and using the Step Auxiliary Function, Continued.... 2) Press the +/INC or DEC/- keys (or pull the Left or Right Toggle Switches) to move the Auxiliary Channel 3 servo Right or Left by the defined Step value. In addition, Auxiliary Channel 3 servo travel in one direction can also be changed by pressing the Right MENU key (or by pushing the Right Toggle switch). Step Auxiliary servo travel is -100 to 100 and overrides End Point Adjustments programmed through the EPA menu.
[PROgRaMMing MEnU Choosing the Steering Channel Option 1) From within the 4WS menu, press the Right MENU key. ST1 will be displayed in the Programming Window. 2) Press the +/INC or DEC/- keys to choose the desired Steering Channel option, either ST1 or ST2. AUX-ST setting range is ST1 and ST2. The default setting is ST1.
[PROgRaMMing MEnU TRM Switch Assigning Auxiliary Channel 3 Steering Servo Trim to the TRM Switch 1) The Steering Trim switch affects only the Right and Left trimming of the Channel 1 Steering servo. If desired, you can independently control the Right and Left trimming of the Auxiliary Channel 3 Steering servo. To do this, assign the Auxiliary Channel 3 Sub-Trim function to the TRM switch.
[PROgRaMMing MEnU Choosing the Throttle Channel Option, Continued.... Two Throttle Channel options are available as described below: TH1 - Exponential and Servo Speed settings affect Channel 1 Throttle servo only. TH2 - Exponential and Servo Speed settings affect both Channel 1 and Auxiliary Channel 3 Throttle servos equally. Regardless of choice, Auxiliary Channel 3 Throttle servo Exponential and Servo Speed are not adjustable separately.
[PROgRaMMing MEnU Changing Power Distribution If desired, the Power Distribution between the Front Throttle and the Rear Throttle can be adjusted to suit your particular setup by adjusting the Throttle High End Point Adjustment for each Throttle. For example, you could adjust the Front Throttle for 100% and the Rear Throttle for 70%. This will distribute more power to the front wheels.
[PROgRaMMing MEnU Choosing the Throttle Channel Option, Continued.... Two Throttle Channel options are available as described below: TH1 - Exponential and Servo Speed settings affect Channel 2 Throttle Brake Side only. TH2 - Exponential and Servo Speed settings affect both Channel 2 and Auxiliary Channel 3 Throttle Brake Sides equally. Regardless of choice, Auxiliary Channel 3 Throttle servo Brake Side Exponential and Servo Speed are not adjustable separately.
[PROgRaMMing MEnU Choosing the Master Channel and Steering and Throttle Channel Options, Continued.... 2) Press the +/INC or DEC/- keys to choose the desired Master Channel and that specific Channel option. The Master channel is the channel you would like to Mix with Auxiliary Channel 3. For example, if your monster truck features dual Front steering servos, choose ST1 or ST2. Or, if want your Throttle to control a separate servo, choose TH1 or TH2. AUX-A_MIX setting range is ST1, ST2, TH1, or TH2.
[PROgRaMMing MEnU 1) Press the Right or Left MENU key to highlight the F/S menu. ST FREE will be displayed in the Programming Window. 3) Press the +/INC or DEC/- keys to set the desired Fail Safe option for the Throttle channel. If you choose to use a % value, see step 4 below. FAIL SAFE setting range is FREE, HOLD, or %. The default setting is FREE. If FREE or HOLD is chosen for the Throttle channel, you cannot Activate the Receiver Battery Voltage Fail Safe function.
[PROgRaMMing MEnU 3) Press the +/INC or DEC/- keys to set the desired Receiver Battery Fail Safe Voltage. VOLTAGE setting range is 3.5v to 5.0v. The default value is INH (Inhibited) The receiver will operate down to 2.5 volts, however, the minimum operating voltage of most servos is higher than that. The voltage should be set to a value that will allow all of your servos to operate at maximum output.
[PROgRaMMing MEnU Adjusting the Throttle Sub-Trim Throttle Trim Display 1) Set the Throttle Trim to '0' using the TH-TRIM switch. Push the Throttle Trim switch up to increase Throttle Trim in one direction and push the Throttle Trim switch down to increase Throttle Trim in the opposite direction. The current amount of Throttle Trim is indicated on the LCD in both digital format in the Programming Window and in scaled format along the left side of the LCD.
[PROgRaMMing MEnU Adjusting the Auxiliary Channel 3 Sub-Trim, Continued.... 3) Press the +/INC or DEC/- keys to adjust the Auxiliary Channel 3 Sub-Trim value to center the servo horn. SUB-T AUX setting range is 100H to 100L. The default setting is 0. After adjusting the Auxiliary Channel 3 Sub-Trim value, use the End Point Adjustment function to reset the desired amount of servo travel in both directions. For more information, see page 18.
[PROgRaMMing MEnU Changing Auxiliary Channel 3 Servo Reversing 2) Press the +/INC or DEC/- keys to change the direction of Auxiliary Channel 3 servo travel. REV-AUX setting range is NOR and REV. The default setting is NOR. When you change the direction of Auxiliary Channel 3 servo travel, the servo horn may no longer be centered (except if the Auxiliary High and Low function is chosen in the AUX menu). If this occurs, use the Sub-Trim function to center the servo horn. For more information, see page 35.
SETUP MEnU Enter the SETuP Menu To enter the SETUP menu, press and HOLD the Left MENU key and turn the transmitter ON or push and HOLD the left Toggle Switch and turn the transmitter ON. ON All SETUP menu options displayed are indicated by the Setup Menu icon in the lower left corner of the LCD. The icon indicates that you are at the top level of that specific menu.
SETUP MEnU Choosing the Modulation Type, Continued.... 3) To choose the displayed Modulation Type, press and hold both the +/INC and DEC/- keys at the same time for approximately 1 second. The transmitter will beep and the Modulation Type displayed will stop flashing. + WARNING Do not attempt to change the Modulation Type when your model’s receiver is turned ON under actual operational conditions. The transmitter will lose communication with the receiver and loss of control will result.
SETUP MEnU Transmitter and Receiver Binding, Continued.... 4) Press the +/INC key a second time. PUSH DEC will flash. Press the DEC/key once. BIND will be displayed in the Programming Window, the LCD and the Power Indicator Light will flash, then the Bind LED on the receiver will turn solid indicating the Binding process is complete.
SETUP MEnU Assigning TRM Switch Functions, Continued.... 2) Press the +/INC or DEC/- keys to display the desired Auxiliary function you would like to control with the TRM switch. TRM setting range is D/R, TH_HI, TH_BR, 3C_HI, 3C_LO, 3_SUB, P_AUX, AND S_AUX. The default setting is D/R. Changing TRM Switch Step Resolution The Trim Step Resolution of the TRM switch can be changed to suit your preference.
SETUP MEnU Changing Steering and Throttle Trim Step Resolution, Continued.... 2) Press the +/INC key. ST S 5 will be displayed in the Programming Window. 3) Press the +/INC or DEC/- keys to choose the desired Trim Step Resolution value for the Steering Trim switch. The higher the number, the more the Steering servo travels with each press of the Steering Trim switch and the lower the number the less the Steering servo travels with each press of the Steering Trim switch. ST-S setting range is 1 to 10.
SETUP MEnU Naming Your Model, Continued.... 2) Press the Right or Left MENU key to highlight the AUX menu. NAME will be displayed in the Programming Window. 3) Press the +/INC or DEC/- keys once to enter the Model Naming screen. The cursor will flash in the lower left corner of the Programming Window and the current Model Name will be displayed. The current Model Number will also be displayed under the Battery Indicator.
SETUP MEnU M_cLR - MODEL cLEaR The Model Clear function allows you to reset the selected model's Programming Data to the default values. All model-specific Programming Data is reset. Transmitter-specific Programming Data, such as Audible Key Tone, Inactivity Alarm, and Battery Cell Count are not reset.
SETUP MEnU Activating or Inhibiting Audible Key Tones, Continued.... 2) Press the +/INC or DEC/- keys to select ACT (Active) or INH (Inhibit). When set to ACT, an Audible Tone will sound when a Programming Key or a Trim Switch is pressed. When set to INH, no Audible Tone will sound when a Programming Key or a Trim Switch is pressed. BEEP setting range is ACT or INH. The default setting is ACT.
SETUP MEnU Choosing the Battery Cell Count If you're using a rechargeable battery pack, to ensure that there are no issues when selecting the Battery Cell Count, you should first fully-charge your battery before installing it into the transmitter and choosing the Battery Cell Count. 1) Press the Right or Left MENU key to highlight the MODEL menu. BATT will be displayed in the Programming Window.
TROUBLESHOOTing gUiDE This troubleshooting guide has been provided to help you diagnose and solve most problems that you may encounter with your Gemini X 2.4GHz FHSS-3 radio control system. Most problems encountered can be solved by following the problem-causesolution sections. If you cannot solve the problem using this troubleshooting guide, please contact us using the information on the back cover of this Operating Manual.
gLOSSaRY OF TERMS +/INC Key: Increases number values in the Programming Window and is used to make programming selections. Activate: To turn ON a particular function. Antenna: Transmits the signal from the transmitter to the receiver in the model. The Antenna should be pivoted into the vertical position during use. When not in use, the Antenna should be collapsed into the horizontal position to prevent damage during handling and transport.
gLOSSaRY OF TERMS Fail Safe: Automatically moves the servos to a predetermined position in the event that the signal between the transmitter and the receiver is interrupted, whether due to signal degradation or to low transmitter battery. FH2 Modulation: Frequency Hopping 2nd generation FHSS technology. The Gemini X 2.4GHz FHSS-3 transmitter modulation can be changed to FH2 to allow the use of Sanwa or Airtronics FHSS-2 2.4GHz surface receivers with your transmitter.
gLOSSaRY OF TERMS Programming Keys: The Programming Keys are used to facilitate transmitter programming. The four Programming Keys consist of two MENU keys (Right and Left), one +/INC (Increase) key, and one NO/- (Decrease) key. Programming Toggle Switch: The two Toggle Switches perform the same functions as the four Programming Keys. The Toggle Switches make it easy to make programming changes during use.
inDEX Symbols 2.4GHz Frequency Band, Precautions 4 +/INC Key, Definition of 48 +/INC Key, Overview 11 A Activate, Definition of 48 Alarms.
inDEX E End Point Adjustment - Auxiliary Channel 3, Adjusting 18 End Point Adjustment, Definition of 48 End Point Adjustment, Overview 16 End Point Adjustment - Steering, Adjusting 16 End Point Adjustment - Throttle, Adjusting 17 Exponential, Definition of 48 Exponential, Overview 19 Exponential - Steering, Adjusting 19 Exponential - Throttle Brake, Adjusting 20 Exponential - Throttle High, Adjusting 19 F Fail Safe, Definition of 48 Fail Safe, Options 32 Fail Safe, Overview 32 Fail Safe, Receiver Battery Vo
inDEX M Motor on Axle Mixing, Definition of 49 Motor on Axle Mixing, Overview 28 Multi-Function LCD, Definition of 8, 49 Multi-Function LCD, Diagram of 6 Multi-Function LCD, Overview 11 N Neck Strap Anchor, Definition of 8 Neck Strap Anchor, Diagram of 6 Nominal Input Voltage - Receiver, Specification 5 Nominal Input Voltage - Transmitter, Specification 5 Ni-MH Battery, Using 9 O Operating Voltage, Definition of 49 Output Power, Definition of 49 Output Power - Transmitter, Specification 5 Packaging 2 Paral
inDEX S Servo Sub-Trim - Steering, Adjusting 34 Servo Sub-Trim - Throttle, Adjusting 35 Servos, Using Analog and Digital 5 Setup Menu, Accessing 38 Setup Menu Icon, Definition of 50 Setup Menu Icon, Diagram of 11 Setup Menu, Menu Options 13 Specifications, Transmitter and Receiver 5 Steering Control Stick, Adjusting Spring Tension 8 Steering Dual Rate, Assigning to TRM Switch 16 Steering Dual Rate, Centering the Steering Servo and Wheels 15 Steering Dual Rate, Definition of 50 Steering Dual Rate, Overview 1
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SANWA ELECTRONIC INSTRUMENT CO., LTD. 1-2-50 Yoshida-Honmachi Higashiosaka, Osaka, 578-0982 Japan Telephone: 81-729-62-1277 Facsimile: 81-729-64-2831 Email: general@sanwa-denshi.co.jp http://www.sanwa-denshi.co.jp In North America: Airtronics, Inc. 18480 Bandilier Circle Fountain Valley, CA 92708 Telephone: (714) 963-0329 Fax: (714) 964-6236 Email: service@airtronics.net http://globalservices.globalhobby.com http://www.airtronics.net Features and Specifications are Subject to Change Without Notice.
