Sanwa Gemini X User Manual

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Sanwa Gemini X Specifications

General

Manufacturer	Sanwa
Frequency	2.4GHz
Model	Gemini X
Brand	Sanwa
Compatible Receivers	RX-371
Battery Type	AA x 4

Summary

Introduction and Safety

System Introduction

Overview of the Sanwa Gemini X 2.4GHz radio control system's purpose and benefits.

Safety Guidelines

Critical safety instructions for operating the radio system and handling equipment.

FCC Compliance Statement

Regulatory compliance information regarding radio frequency emissions and interference.

Usage Precautions

Frequency Band and General Precautions

Advice on using the 2.4GHz band and general operational safety guidelines.

Transmitter and Receiver Precautions

Specific handling and usage guidelines for the transmitter and receiver components.

Features and Specifications

System Features Overview

Comprehensive list of the Gemini X's capabilities, functions, and technical specifications.

Servo Recommendations

Guidance on selecting compatible servos for optimal performance with the radio system.

Features Familiarization - Transmitter

Transmitter Component Diagrams

Visual identification of the transmitter's front and back features and controls.

Transmitter Feature Descriptions

Explanations for key controls like sticks, trims, switches, and the LCD.

Features Familiarization - Receiver & Extras

Receiver Component Diagram

Visual identification of the receiver's ports, LED, and connection points.

Optional Items and Feature Descriptions

Details on available accessories and explanations of antenna functions.

Features Familiarization - Controls

Detailed Feature Descriptions

In-depth explanations of various transmitter controls and their functions.

Control Stick Spring Tension Adjustment

Guide to customizing the tension and feel of the transmitter's control sticks.

Transmitter Power Options

Battery Options Overview

Information on compatible battery types (Alkaline, Ni-Cd/Ni-MH, Li-Po/Li-Fe) for the transmitter.

Transmitter Battery Installation

Step-by-step guide for inserting batteries into the transmitter.

Receiver Setup

Receiver Connections and Mounting

Instructions for wiring and physically installing the receiver in your model.

Using Li-Po or Li-Fe Batteries

Important safety and usage notes for using Li-Po or Li-Fe battery types.

LCD and Programming Keys

Multi-Function LCD Overview

Understanding the transmitter's display screen, indicators, and layout.

Programming Key Functions

Description of how each programming key operates and its function.

Programming Key Shortcuts

Displaying Voltage, Modulation, and TRM Function

Shortcuts for quickly viewing specific indicators like voltage and modulation type.

Resetting Values and Entering Setup Menu

Shortcuts for resetting programming values and accessing the setup menu.

Menu Navigation

Menu Flow Chart

Visual guide to the transmitter's programming and setup menu structure.

Setup Menu Options

Introduction to the transmitter's setup configuration options and their purpose.

Programming Menu - Binding

Transmitter and Receiver Binding Procedure

Step-by-step guide to pair the transmitter and receiver for communication.

Programming Menu - Steering Adjustments

Steering Dual Rate (D/R)

Adjusting steering sensitivity for different turning radii and model response.

Servo Centering and Linkage

Steps for aligning steering servos and model wheels for proper operation.

Programming Menu - Endpoint Adjustments

Adjusting Steering Dual Rate

Detailed steps for setting steering Dual Rate values for optimal control.

End Point Adjustment (EPA)

Setting maximum servo travel limits for channels to prevent binding.

Adjusting Steering End Point

Specific steps for setting left and right steering endpoints accurately.

Programming Menu - Throttle Adjustments

Adjusting Steering End Point

Continued detailed steps for setting steering endpoints.

Adjusting Throttle End Point

Setting maximum travel for throttle and brake servos for precise control.

Programming Menu - Auxiliary and TRM Switch

Adjusting Throttle End Point

Continued detailed steps for setting throttle endpoints.

Auxiliary Channel 3 End Point Adjustment

Setting endpoints for auxiliary channel servos for specific functions.

Assigning End Point Adjustment to TRM Switch

Using the TRM switch to adjust End Point values dynamically.

Programming Menu - Exponential

Exponential Function Overview

Understanding how exponential affects servo response and sensitivity near neutral.

Adjusting Steering Exponential

Setting steering sensitivity near neutral for smoother or quicker response.

Adjusting Throttle High Exponential

Setting throttle high sensitivity near neutral for better control.

Programming Menu - Servo Speed

Adjusting Throttle Brake Exponential

Setting brake sensitivity near neutral for improved braking control.

Servo Speed Overview

How servo speed affects transit time and overall control smoothness.

Adjusting Steering Speed

Setting steering servo transit speed for precise cornering.

Programming Menu - Throttle Speed

Adjusting Steering Speed

Detailed steps for adjusting steering servo transit speed.

Adjusting Throttle Speed

Setting throttle forward and return-to-center servo speeds.

Programming Menu - Auxiliary Functions

Auxiliary Programming Overview

Introduction to functions available for Auxiliary Channel 3.

Auxiliary Channel 3 ON-OFF

Using the auxiliary switch for simple ON/OFF control of a servo.

Programming Menu - Point Auxiliary

Point Auxiliary Function

Programming servo movement to specific points for custom control.

Choosing Number of Points

Setting how many points the Point Auxiliary function will use for servo movement.

Programming Menu - Point Auxiliary Control

Choosing Point Values

Setting the specific servo position for each defined point in the Point Auxiliary function.

Activating Point Auxiliary

How to enable and use the Point Auxiliary function for servo control.

Assigning Point Auxiliary to TRM Switch

Using the TRM switch to cycle through Point Auxiliary positions.

Programming Menu - Step Auxiliary

Step Auxiliary Function

Programming servo movement in defined steps for precise adjustments.

Choosing Step Value

Setting the step increment amount for the auxiliary servo's movement.

Activating Step Auxiliary

How to enable and use the Step Auxiliary function for servo control.

Programming Menu - Mixing Functions

Assigning Step Auxiliary to TRM Switch

Using the TRM switch to cycle through Step Auxiliary values.

Four Wheel Steering Mixing Overview

Introduction to mixing steering for front and rear wheels simultaneously.

Programming Menu - Four Wheel Steering

Choosing Steering Channel Option

Selecting the channel for Four Wheel Steering control.

Activating Four Wheel Steering

How to enable and select modes for 4WS operation.

Programming Menu - Motor on Axle Mixing

Motor on Axle Mixing Overview

Introduction to mixing for dual throttle servos, enabling features like Dig and Burn.

Choosing Throttle Channel Option

Selecting the throttle channel for Motor on Axle mixing.

Programming Menu - MOA Mixing Control

Activating Motor on Axle Mixing

How to enable and use MOA mixing functions like Hold, Burn, and Dig.

Assigning Throttle Trim to TRM Switch

Using the TRM switch for controlling throttle trim.

Programming Menu - Brake Mixing

Brake Mixing Overview

Using Auxiliary Channel 3 for dual brake control and brake hold.

Choosing Throttle Channel Option

Selecting the throttle channel for Brake Mixing.

Programming Menu - Mixing and Channel Options

Using Brake Hold Function

How to activate the brake hold feature for braking servos.

Auxiliary Mixing Overview

Combining steering or throttle functions with auxiliary channels.

Choosing Master and Slave Channels

Selecting master and slave channels for auxiliary mixing setup.

Programming Menu - Fail Safe

Choosing Master and Slave Channels

Details on ST/TH channel options for auxiliary mixing.

Fail Safe Function Overview

How to set up automatic servo response during signal loss or low battery.

Programming Menu - Fail Safe Settings

Setting Fail Safe Options

Configuring Fail Safe for FREE, HOLD, or percentage-based servo positions.

Receiver Battery Voltage Fail Safe

Setting Fail Safe based on receiver battery voltage thresholds.

Programming Menu - Servo Sub-Trim

Servo Sub-Trim Overview

Correcting neutral trim settings for steering and throttle servos.

Adjusting Steering Sub-Trim

Steps for centering the steering servo horn accurately.

Programming Menu - Sub-Trim Adjustments

Adjusting Throttle Sub-Trim

Steps for centering the throttle servo horn accurately.

Adjusting Auxiliary Channel 3 Sub-Trim

Centering the auxiliary channel servo horn for custom control.

Programming Menu - Servo Reversing

Servo Reversing Overview

Electronically switching the direction of servo travel.

Changing Steering Servo Reversing

How to reverse the steering servo's direction of travel.

Changing Throttle Servo Reversing

How to reverse the throttle servo's direction of travel.

Programming Menu - Model Select

Changing Auxiliary Channel 3 Servo Reversing

How to reverse the auxiliary channel servo's direction of travel.

Model Select Overview

Managing and loading stored model data for different setups.

Selecting a Model

Steps to choose and load a specific model's configuration.

Setup Menu - Modulation Type

Modulation Type Overview

Selecting transmitter modulation for receiver compatibility (FH2, FH3, etc.).

Choosing Modulation Type

Steps to select the appropriate modulation type for your receiver.

Setup Menu - Binding

Binding Overview

Explanation of the transmitter and receiver pairing process.

Transmitter and Receiver Binding Procedure

Step-by-step guide to pair the transmitter and receiver.

Setup Menu - Trim Switch Assignment

Trim Switch Assign Overview

Assigning various functions to the TRM switch for easy access.

Assigning TRM Switch Functions

How to map functions like D/R, EPA, and Aux to the TRM switch.

Setup Menu - Trim Resolution

Changing TRM Switch Step Resolution

Adjusting the step size for TRM switch functions.

Trim Step Resolution Overview

Adjusting travel resolution for steering and throttle trim switches.

Changing Steering/Throttle Trim Step Resolution

Setting trim step resolution for steering and throttle controls.

Setup Menu - Model Naming

Model Naming Overview

How to name saved models for easier tracking and identification.

Naming Your Model

Step-by-step guide to naming a model using the transmitter interface.

Setup Menu - Model Naming Details

Naming Your Model

Entering characters for model names using the transmitter controls.

Erasing and Using Special Characters

Modifying model names by deleting characters or adding symbols.

Setup Menu - Model Clear & Key Tones

Model Clear Overview

Resetting model-specific programming data to default values.

Clearing Model Programming Data

Steps to reset a selected model's settings.

Audible Key Tone Control

Turning audible key press sounds ON or OFF.

Setup Menu - Alarms & Battery

Inactivity Alarm Control

Enabling or disabling the alarm for no control input for extended periods.

Battery Cell Count Overview

Selecting battery type for accurate low voltage warnings.

Setup Menu - Battery Settings

Choosing Battery Cell Count

Steps to select 4-cell or 6-cell battery configuration for the transmitter.

Low Voltage Alarm Details

Information on low voltage warning thresholds for different battery counts.

Troubleshooting Guide

Transmitter Power and Binding Issues

Solutions for transmitter not turning on or binding problems.

Servo and Control Operation Problems

Troubleshooting slow servos, incorrect movement, or range issues.

Menu and Display Troubleshooting

Solutions for menu access and display update problems.

Glossary of Terms (Part 1)

Key Definitions A-E

Explanations of terms from Antenna to Exponential.

Key Definitions F-S

Explanations of terms from Fail Safe to Sub-Trim.

Glossary of Terms (Part 2)

Key Definitions T-Z

Explanations of terms from Trim Switch to Z-Connector.

Glossary of Terms (Part 3)

Key Definitions - Programming

Explanations of programming-specific terms.

Notes

General Notes

Any miscellaneous remarks or comments not covered elsewhere.