Mantian RK-7157B
Mantian Double Din Car Stereo User Manual
Model: RK-7157B
1. Introducció
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.

Figure 1.1: Mantian Double Din Car Stereo with Apple CarPlay interface.
2. Informació de seguretat
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.
- Ensure the vehicle's ignition is off and the negative battery terminal is disconnected before beginning installation to prevent electrical shorts.
- Si no esteu segurs de cap pas a seguir, consulteu un professional per a la instal·lació.
- No feu servir la unitat de manera que us distregui de la conducció. Prioritzeu sempre la seguretat viària.
- Eviteu exposar la unitat a temperatures extremes, a la llum solar directa durant períodes prolongats o a una humitat excessiva.
- Utilitzeu només el volum especificattage and power sources.
3. Contingut del paquet
Verifiqueu que tots els components siguin presents al paquet abans de continuar amb la instal·lació.
- Mantian Double Din Car Stereo Unit
- Power Cord (Harness with naked wires)
- Horn Cable (Speaker Cable)
- Control remot
- Steering Wheel Control (SWC) Unit
- Micròfon
- posterior View Camera with 6M video cable and 1.5M power cable
- Manual d'usuari (aquest document)

Figure 3.1: Included components of the Mantian Car Stereo system.
4. Guia d'instal·lació
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 Connexions de cablejat
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.

Figure 4.1: Rear connections and dimensions of the car stereo.
Connexions clau:
- Left Audio Output: Connect to the left channel input of your amplifier or external audio device.
- Sortida d'àudio dreta: Connect to the right channel input of your amplifier or external audio device.
- Sortida de vídeo: Per connectar a una pantalla externa.
- Sortida de subwoofer: Per connectar un subwoofer extern.
- Entrada de vídeo: For connecting external video sources.
- Entrada de càmera posterior: Connect the video cable from the backup camera here. The unit automatically displays the reverse image when reversing.
- ISO Power Cable: Main power connection for the unit.
- Interfície de micròfon: Connect the included external microphone for hands-free calling and voice commands.
- Antena de ràdio: Connect your vehicle's FM antenna.
4.2 Instal·lació de la càmera de marxa enrere
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.

Figure 4.2: Backup camera display on the car stereo.
5. Instruccions de funcionament
The Mantian car stereo features a user-friendly digital control interface with a 7-inch HD touchscreen (1024*600 resolution).
5.1 Funcionament general
- Encès/apagat: Press the power button (usually M/N or a rotary knob) to turn the unit on or off.
- Control de volum: Use the rotary knob or touchscreen controls to adjust volume.
- Navegació del menú: Swipe left/right or tap icons on the touchscreen to navigate between functions like Radio, Bluetooth, Phone Link, Card (SD card), AV In, F-CAM (Front Camera), Setup, and EQ.
- 7-Color Back-lights: The unit supports adjustable 7-color back-lights for the physical buttons. This setting can typically be found in the 'Setup' menu.

Figura 5.1: Mésview 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.

Figure 5.2: Apple CarPlay interface on the car stereo.
Control per veu amb Siri
With CarPlay, you can use Siri to make calls, send messages, get directions, and control music using voice commands, enhancing driving safety.

Figura 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.

Figure 5.4: Android Auto connection and interface.
5.4 Connectivitat Bluetooth
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.
- Go to the 'BT' (Bluetooth) menu on the stereo.
- Activa el Bluetooth al telèfon i busca els dispositius disponibles.
- Select "CAR-BT" (or similar name displayed on the stereo) from your phone's Bluetooth list to pair.
- Un cop connectat, podeu fer/rebre trucades i reproduir música sense fil.
5.5 Ràdio FM
Tune into your favorite FM radio stations. The unit allows for storing multiple stations for quick access.
- Select the 'Radio' icon from the main menu.
- Use the arrow buttons to manually tune or the 'AS' (Auto Scan) function to automatically search and save stations.
- Tap on the numbered presets (1-6) to quickly switch between saved stations.
5.6 Media Playback (USB/TF Card/AUX-in)
The stereo supports various media inputs for playing audio and 1080P video playback.
- USB: Insert a USB drive into the front USB port.
- Targeta TF: Inseriu una targeta TF (microSD) a la ranura designada.
- Entrada AUX: Connect external audio devices using a 3.5mm audio jack to the AUX-in port.
5.7 Control del volant (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 Configuració de l'equalitzador (EQ)
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. Manteniment
Un manteniment adequat garanteix la longevitat i el rendiment òptim de l'equip de música del vostre cotxe.
- Neteja de la pantalla: Feu servir un drap suau i sense borrissol per netejar suaument la pantalla tàctil. Per a taques difícils, fregueu lleugeramentampNetegeu el drap amb aigua o un netejador de pantalles. Eviteu materials abrasius o productes químics agressius.
- Neteja general: Mantingueu la unitat neta de pols i deixalles. Feu servir un raspall suau o aire comprimit per netejar les reixetes de ventilació i les zones dels botons.
- Temperatura: Avoid leaving the unit in direct sunlight or extreme cold for extended periods, as this can affect performance and lifespan.
- Actualitzacions de firmware: Comproveu el del fabricant website periodically for any available firmware updates that may improve performance or add features.
7. Solució De Problemes
If you encounter issues with your Mantian car stereo, refer to the following common troubleshooting steps.
| Problema | Causa possible | Solució |
|---|---|---|
| La unitat no s'encén. | Cablejat incorrecte; Fusible fundit; Problema amb la bateria del vehicle. | Check power and ground connections. Inspect the 10A fuse on the back of the unit. Verify vehicle battery voltage. |
| No hi ha so dels altaveus. | 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. |
| El Bluetooth no es connecta. | 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. |
| El CarPlay/Android Auto no funciona. | 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. |
| La càmera de marxa enrere no es mostra. | 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. |
| Mala recepció de ràdio FM. | Antena no connectada; Zona de senyal feble; Antena danyada. | Check antenna connection. Try tuning to stronger stations. Inspect antenna for damage. |
8. Especificacions
| Característica | Detall |
|---|---|
| Model | RK-7157B |
| Product Dimensions (Unit) | 178mm (L) x 104mm (H) x 46mm (D) / 7 x 4.09 x 1.81 inches |
| Pes de l'article | 1.32 lliures |
| Mida de la pantalla | Pantalla tàctil de 7 polzades |
| Resolució de pantalla | 1024*600 HD |
| Reproducció de vídeo | Supports 1080P video playback |
| Video Encoding Formats | MKV / RMVB / AVI / MP4 / MDV |
| Tecnologia de connectivitat | Bluetooth, USB |
| Tipus de controlador | Android, iOS |
| Dispositius compatibles | Android/iOS smartphones |
| Mode de sortida d'àudio | estèreo |
| Codificació d'àudio | estèreo |
| Tipus de connector | 3.5mm Jack (AUX-in), USB |
| Característiques especials | Touchscreen, 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. Garantia i Suport
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.
Manual d'usuari oficial (PDF): Descarregar PDF
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