1. Introducció
This manual provides detailed instructions for the installation, operation, and maintenance of your JVC KDR820BT Wireless Bluetooth Dual USB-CD Receiver. Please read this manual thoroughly before using the unit to ensure proper operation and to prevent damage.
The JVC KDR820BT is designed to provide versatile audio playback and communication features in your vehicle. It includes built-in Bluetooth for hands-free calling and audio streaming, dual USB ports for device connectivity, and CD playback capabilities. The unit also features a customizable display with variable color options.
2. Contingut del paquet
Verifiqueu que tots els elements siguin presents al paquet abans de començar la instal·lació:
- JVC KDR820BT Head Unit
- Wireless Remote Control (RM-RK52)
- Adaptador Bluetooth USB
- Micròfon per cable
- Arnès de cablejat
- Maquinari de muntatge
- Manual del propietari (aquest document)

Figure 2.1: JVC KDR820BT Product Packaging. The box illustrates the main unit, remote, USB Bluetooth adapter, and wired microphone.
3. Instal·lació
Professional installation is recommended. Ensure the vehicle's battery is disconnected before starting installation to prevent electrical damage.
3.1 Connexions de cablejat
Connect the wiring harness to the vehicle's electrical system and speakers. Refer to your vehicle's wiring diagram for specific connections.
- Fil groc: Connecteu-lo a una alimentació constant de 12 V.
- Fil vermell: Connect to switched 12V accessory power.
- Fil negre: Connecteu-vos a terra del xassís del vehicle.
- Cable blau/blanc: Connecteu-vos a l'antena elèctrica o ampcable d'encesa a distància del lifier.
- Cables de l’altaveu: Connecteu-lo als altaveus del vehicle (assegureu-vos de la polaritat correcta).
- RCA Pre-out Jacks: Per connectar externs ampamplificadors (davanter, posterior, subwoofer).
- Entrada de micròfon: Connect the supplied wired microphone for hands-free calling.
- Ports USB: Front USB for general connectivity, Rear USB for additional devices or the Bluetooth adapter.

Figure 3.1: Rear Panel Connections. This image displays the rear of the receiver with its wiring harness, RCA pre-outs, and antenna input.
3.2 Muntatge de la unitat
Install the mounting sleeve into the vehicle's dashboard opening. Secure the unit by sliding it into the sleeve until it locks into place. Attach the trim ring.
3.3 Connecting the Bluetooth Adapter
The supplied USB Bluetooth adapter must be connected to one of the USB ports (front or rear) for Bluetooth functionality. For a cleaner installation, the rear USB port is often preferred.
4. Configuració inicial
After installation, reconnect the vehicle battery. The unit will power on. Follow these steps for initial configuration:
- Encesa inicial: Premeu el botó FONT per engegar la unitat.
- Configuració del rellotge: Access the system menu to set the current time.
- Configuració d'àudio: Adjust basic audio settings such as bass, treble, balance, and fader.
- Color de la pantalla: Customize the display and button illumination colors using the variable color settings.
5. Instruccions de funcionament

Figura 5.1: Panell frontalview. This image shows the main controls and display of the JVC KDR820BT.

Figure 5.2: Receiver with Remote Control. The image displays the head unit and the included wireless remote control (RM-RK52).
5.1 Controls bàsics
- Botó d'engegada/font: Press to turn on/off or change audio source (FM/AM, CD, USB, Bluetooth Audio, AUX).
- Pom de volum: Rotate to adjust volume. Press to mute/pause audio.
- Botó de menú: Access system settings and advanced options.
- Botó enrere: Return to the previous menu or display.
- Skip/Seek Buttons: Navigate tracks, radio stations, or menu options.
5.2 Funcionament de la ràdio (AM/FM)
- Premeu FONT to select FM or AM.
- Utilitza el Busca buttons to find stations automatically.
- Per sintonitzar manualment, premeu i manteniu premut el botó Busca botons.
- To store a preset, tune to the desired station, then press and hold a preset number button (1-6).
5.3 Reproducció de CD
- Introduïu un CD a la ranura de disc. La unitat canviarà automàticament a la font de CD i començarà la reproducció.
- Utilitza el Saltar botons per canviar de pista.
- Premeu el botó Pom de volum to pause/play.
- Premeu el botó Expulsar button to remove the CD.
5.4 USB Device Playback
- Connect a USB device (flash drive, iPod/iPhone, digital audio player) to either the front or rear USB port.
- Premeu FONT per seleccionar USB.
- Utilitza el Saltar botons per navegar per pistes.
- Premeu el botó Menú button to browse folders and files.
5.5 Funcions Bluetooth
Ensure the USB Bluetooth adapter is connected to the unit.
5.5.1 Emparellar un dispositiu Bluetooth
- Activa el Bluetooth al teu dispositiu mòbil.
- On the JVC KDR820BT, select the Bluetooth source.
- Cerca available devices on your mobile phone. Select "JVC unit" (or similar) from the list.
- Enter the PIN code (usually "0000") if prompted.
- Once paired, the Bluetooth indicator on the receiver will illuminate. The unit supports connecting two phones simultaneously.
5.5.2 Trucades de mans lliures
- Fer una trucada: Use your phone's voice dial feature (if supported) or dial directly from your phone. The audio will transfer to the receiver.
- Respondre una trucada: Premeu el botó Telèfon button on the receiver when an incoming call is detected.
- Finalització d'una trucada: Premeu el botó Telèfon de nou per finalitzar la trucada.
- Phone Book Access: The unit supports Phone Book Access Profile (PBAP) for transferring contacts.
Transmissió d'àudio Bluetooth 5.5.3
- Select Bluetooth Audio as the source.
- Play audio from your paired mobile device. The receiver will stream the audio wirelessly.
- Utilitza el Saltar buttons on the receiver to control playback (play/pause, skip track).
- The unit supports Pandora Internet Radio control from an iPhone.
5.6 Configuració de so
- 3-Band Parametric iEQ: Access the sound menu to adjust the equalizer settings for customized audio output.
- MOS-FET 50W x 4 Ampmés viu: Proporciona una sortida d'àudio potent.
- TI/Burr-Brown 24-bit DAC: Ensures high-quality digital-to-analog audio conversion.
5.7 Configuració de la pantalla
- Separated Variable Color: Customize the illumination color of the keys and LCD panel from over 30,000 choices. Access this setting through the system menu.
- Control de brillantor: Adjust display brightness for day and night viewing.
6. Manteniment
- Neteja de la unitat: Use a soft, dry cloth to wipe the front panel. For stubborn dirt, dampRenta el drap amb aigua. Evita productes de neteja o dissolvents abrasius.
- Cura del reproductor de CD: Keep the disc slot free of dust and debris. Use only clean, scratch-free CDs.
- Eliminació de la placa frontal: The detachable faceplate can be removed for security. Store it in a protective case.
7. Solució De Problemes
Review the following common issues and solutions before seeking service.
| Problema | Possible causa/solució |
|---|---|
| Sense poder | Check power and ground wiring connections. Ensure the vehicle's ignition is on. Check vehicle fuses. |
| Sense so | Check speaker wiring. Ensure volume is not muted or too low. Verify the power antenna/remote wire is connected if using an external ampmés viu. |
| Bluetooth echo during calls | Adjust microphone gain settings. Reposition the microphone away from reflective surfaces (e.g., windshield). Reduce the receiver's volume during calls. |
| No es pot emparellar el dispositiu Bluetooth | Ensure the USB Bluetooth adapter is securely connected. Make sure Bluetooth is enabled on your mobile device and the receiver is in pairing mode. Delete previous pairings from your phone and try again. |
| Unit loses settings after power off | The yellow constant 12V power wire may not be connected correctly or is losing power. This can also occur if the vehicle battery is disconnected. |
| Display text is truncated or difficult to read | The display has limited character space. Some long names may be truncated. There is no option to increase scroll speed for folder/file noms. |
| Buttons or rotary knob are unresponsive | Ensure the faceplate is securely attached. Clean around the buttons to remove any debris. If the issue persists, it may indicate a hardware malfunction. |
8. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | KDR820BT |
| Potència de sortida | MOS-FET 50W x 4 (20W RMS x 4) |
| DAC | TI/Burr-Brown 24-bit |
| Equalitzador | 3-Band Parametric iEQ |
| Connectivitat | Bluetooth, Dual USB (Front & Rear), AUX Input |
| Característiques de Bluetooth | Hands-Free Call, Audio Streaming, Phone Book Access Profile, Text Message Receipt Notification, Connects 2 Phones |
| Reproducció multimèdia | CD, MP3, WMA, WAV |
| Tipus de visualització | LCD with Separated Variable Color |
| Preamp Voltage | 2 Volts |
| Mida del xassís | Full-DIN |
| Dimensions (A x A x P) | 7.19 x 2.06 x 6.25 polzades (aproximadament) |
| Pes | 4 lliures (aproximadament) |
| Serveis d'Internet compatibles | Pandora Internet Radio |
| Mètode de control | Remote Control, Android (via USB) |
9. Garantia i Suport
JVC products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your product or visit the official JVC weblloc web. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
For technical support, service, or inquiries regarding your JVC KDR820BT receiver, please contact JVC customer service or visit their official support channels. Contact information can typically be found on the JVC weblloc o a l'embalatge del producte.