Mantian RK-7157B

Mantian Double Din Car Stereo User Manual

Model: RK-7157B

1. Introduction

This user manual provides detailed instructions for the installation, operation, and maintenance of your Mantian 7-inch Touchscreen Double Din Car Stereo. This multimedia system features Apple CarPlay, Android Auto, Bluetooth connectivity, FM radio, and supports a backup camera for enhanced driving convenience and safety.

Mantian Double Din Car Stereo with CarPlay interface displayed

Figure 1.1: Mantian Double Din Car Stereo with Apple CarPlay interface.

2. Safety Information

Please read all instructions carefully before installation and operation. Failure to follow these guidelines may result in injury, damage to the unit, or damage to your vehicle.

3. Package Contents

Verify that all components are present in the package before proceeding with installation.

Components included with the Mantian car stereo: main unit, power cord, horn cable, remote control, instructions, SWC, microphone, LED camera.

Figure 3.1: Included components of the Mantian Car Stereo system.

4. Installation Guide

The Mantian Double Din Car Stereo is designed to fit standard double din openings. Its dimensions are approximately 178mm (L) x 104mm (H) x 46mm (D). Some vehicles may require an additional dash kit or modification for a perfect fit.

4.1 Wiring Connections

The unit comes with a harness with naked wires. Refer to the wiring diagram below for proper connections. It is recommended to test connections before fully securing the unit.

Rear view of the car stereo showing dimensions and labeled audio/video output, video input, subwoofer output, rear camera input, and ISO power cable connections.

Figure 4.1: Rear connections and dimensions of the car stereo.

Key Connections:

4.2 Backup Camera Installation

The included backup camera is designed for safe parking. Connect the 6-meter video cable from the camera to the "Rear Camera Input" on the stereo. Connect the 1.5-meter power cable of the camera to your vehicle's reverse light power source so it activates automatically when shifting into reverse.

Car interior showing the car stereo displaying a backup camera view with parking lines, indicating safe parking assistance.

Figure 4.2: Backup camera display on the car stereo.

5. Operating Instructions

The Mantian car stereo features a user-friendly digital control interface with a 7-inch HD touchscreen (1024*600 resolution).

5.1 General Operation

Four-panel image showing the car stereo's FM radio interface, Bluetooth calling screen, 7-inch large screen display, and steering wheel control setup.

Figure 5.1: Overview of key features: FM Radio, Bluetooth, 7-inch screen, and Steering Wheel Control.

5.2 Apple CarPlay

CarPlay provides a smarter, safer way to use your iPhone in the car. Connect your iPhone to the unit via a USB cable. CarPlay allows access to phone navigation, contacts, messages, notifications, music, and more. Siri voice assistant can be used for hands-free control.

Car interior view showing the Mantian car stereo displaying the Apple CarPlay interface with various app icons.

Figure 5.2: Apple CarPlay interface on the car stereo.

Voice Control with Siri

With CarPlay, you can use Siri to make calls, send messages, get directions, and control music using voice commands, enhancing driving safety.

Car stereo screen showing various voice commands for intelligent voice assistant, such as 'Hi, Siri', 'Navigation to school', 'Call John', 'Play music', 'Open music software', and 'Increase volume'.

Figure 5.3: Examples of intelligent voice commands.

5.3 Android Auto

Android Auto offers a safe way to use your Android phone while driving. Download the Android Auto app on your phone and connect it to the car stereo via a USB data cable. This enables access to navigation, calls, messages, and music from your Android device.

Car stereo screen showing the Android Auto interface with Maps, Podcasts, Phone, and Exit icons, along with a connected Android phone displaying navigation.

Figure 5.4: Android Auto connection and interface.

5.4 Bluetooth Connectivity

Pair your smartphone via Bluetooth for hands-free calls and wireless music streaming. Access your phonebook and call logs directly from the stereo's interface.

5.5 FM Radio

Tune into your favorite FM radio stations. The unit allows for storing multiple stations for quick access.

5.6 Media Playback (USB/TF Card/AUX-in)

The stereo supports various media inputs for playing audio and 1080P video playback.

5.7 Steering Wheel Control (SWC)

The unit supports steering wheel control. You can program your vehicle's steering wheel buttons to control various functions of the stereo, such as volume, track skipping, and mode switching. Refer to the 'Steering Wheel' section in the 'Setup' menu to configure this feature.

5.8 Equalizer (EQ) Settings

Adjust the audio output to your preference using the built-in equalizer. You can select from preset modes or customize the frequency bands manually.

Video 5.1: Demonstration of the Mantian Double Din Car Stereo's user interface, including radio tuning, Bluetooth pairing, phone link, equalizer adjustments, steering wheel control setup, and general system settings. This video provides a visual guide to navigating the stereo's features and customizing settings.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your car stereo.

7. Troubleshooting

If you encounter issues with your Mantian car stereo, refer to the following common troubleshooting steps.

ProblemPossible CauseSolution
Unit does not power on.Incorrect wiring; Blown fuse; Vehicle battery issue.Check power and ground connections. Inspect the 10A fuse on the back of the unit. Verify vehicle battery voltage.
No sound from speakers.Speaker wires disconnected; Volume too low; Mute function active; Incorrect audio settings.Check speaker wire connections. Increase volume. Deactivate mute. Adjust EQ and audio output settings.
Bluetooth not connecting.Bluetooth not enabled on phone/stereo; Incorrect pairing process; Device too far.Ensure Bluetooth is on for both devices. Re-attempt pairing. Move phone closer to the stereo.
CarPlay/Android Auto not working.Faulty USB cable; Phone not compatible; App not installed (Android Auto); USB port issue.Use a high-quality, original USB cable. Ensure your phone OS is compatible. Install Android Auto app if applicable. Try a different USB port if available.
Backup camera not displaying.Camera power issue; Video cable disconnected; Incorrect camera input selected.Verify camera power connection to reverse light. Check video cable connection to stereo. Ensure the stereo is set to the correct camera input.
Poor FM radio reception.Antenna not connected; Weak signal area; Damaged antenna.Check antenna connection. Try tuning to stronger stations. Inspect antenna for damage.

8. Specifications

FeatureDetail
ModelRK-7157B
Product Dimensions (Unit)178mm (L) x 104mm (H) x 46mm (D) / 7 x 4.09 x 1.81 inches
Item Weight1.32 pounds
Screen Size7 Inch Touchscreen
Screen Resolution1024*600 HD
Video PlaybackSupports 1080P video playback
Video Encoding FormatsMKV / RMVB / AVI / MP4 / MDV
Connectivity TechnologyBluetooth, USB
Controller TypeAndroid, iOS
Compatible DevicesAndroid/iOS smartphones
Audio Output ModeStereo
Audio EncodingStereo
Connector Type3.5mm Jack (AUX-in), USB
Special FeaturesTouchscreen, Apple CarPlay, Android Auto, Bluetooth Hands-free, FM Radio, USB/TF Card Playback, AUX-in, Subwoofer Output, Backup Camera Support, 7-color Back-lights, Steering Wheel Control.

9. Warranty and Support

For warranty information, please refer to the documentation included with your purchase or contact Mantian customer support directly. For additional support, you may refer to the official PDF user manual available online.

Official User Manual (PDF): Download PDF

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