UNITOPSCI A3255

UNITOPSCI Single Din Car Stereo Radio Model A3255 User Manual

Bluetooth Multimedia Car MP3 Player with FM Radio, Dual USB, and AUX Input

1. Introdución

This manual provides detailed instructions for the installation, operation, and maintenance of your UNITOPSCI Single Din Car Stereo Radio, Model A3255. Please read this manual thoroughly before using the product to ensure proper function and to prevent damage.

2. Información de seguridade

  • Instalación profesional recomendada: Installation of this product requires technical skills. If you are unsure about the installation process, seek assistance from a qualified professional.
  • Fonte de alimentación: Ensure the car stereo is connected to a 12V DC power supply with negative grounding.
  • Cableado: Incorrect wiring can cause damage to the unit or the vehicle's electrical system. Follow the wiring diagram carefully.
  • Evite a auga e a humidade: Do not expose the unit to water or excessive moisture to prevent electric shock or fire.
  • Temperatura de funcionamento: Operate the unit within the specified temperature range.
  • Seguridade na condución: Non operes a unidade dun xeito que te distraia da condución. Prioriza sempre a seguridade viaria.

3. Contido do paquete

Verifica que todos os elementos estean presentes no paquete:

  • 1 x Car Stereo Unit
  • 1 x cable de alimentación
  • 1 cable de bucina
  • 1 x Disassembly Tools (Pair of Iron Sheets)
  • 1 x Manual de usuario
Package contents including car stereo, cables, disassembly tools, and user manual.

Descrición da imaxe: This image displays the UNITOPSCI Single Din Car Stereo unit along with its accessories: a power cable, a speaker cable (labeled as horn cable in the list), a user manual, and two metal disassembly tools. The image also shows the unit's dimensions and rear connections.

4. Produto rematadoview

4.1 Controis do panel frontal

Front panel of the UNITOPSCI car stereo with labeled buttons and ports.

Descrición da imaxe: Un detallado view of the car stereo's front panel, highlighting each button and port with corresponding labels. Key controls include the power/mode button, volume knob, band/answer button, mute/clock button, track skip buttons, and numbered preset buttons (1-6). It also shows the dual USB ports and AUX input.

  • Power/Mode Button (① MODE): Short press to switch between modes (FM, BT, USB, AUX). Long press to power on/off.
  • Botón de volume: Rotate to adjust volume. Press to access audio settings (Bass, Treble, Balance, Fader, EQ).
  • Botón BAND/AMS: In FM mode, short press to switch radio bands (FM1, FM2, FM3). Long press to auto-scan and store stations. In Bluetooth mode, short press to answer a call.
  • MUTE/CLK Button: Short press to mute/unmute audio. Long press to display and set the clock.
  • Botóns de pista anterior/seguinte (◀◀ / ▶▶): Short press to skip tracks or change radio stations. Long press for fast forward/rewind.
  • Botóns predefinidos (1-6): Store and recall radio stations. In USB/BT mode, these may have additional functions like Play/Pause (1), Intro (2), Repeat (3), Random (4), Folder Down (5), Folder Up (6).
  • Portos USB: One port for media playback (U disk playback), another for fast charging mobile devices.
  • Porto de entrada auxiliar: Conector de 3.5 mm para conectar dispositivos de son externos.

4.2 Conexións do panel traseiro

Traseira view of the UNITOPSCI car stereo showing wiring harnesses and RCA outputs.

Descrición da imaxe: The rear panel of the car stereo, illustrating the antenna input (ANT), RCA pre-amp outputs (FL, FR, RL, RR), the main power cable connector, and the horn cable connector. This view is crucial for understanding wiring connections.

  • FORMIGA: Antenna input for FM radio reception.
  • RCA pre-Amp Outputs (FL, FR, RL, RR): Front Left, Front Right, Rear Left, Rear Right audio outputs for connecting external amplevantadores.
  • Power Cable Connector: For connecting the main power harness to the vehicle's electrical system.
  • Horn Cable Connector: For connecting speaker wires.

5. Instalación

The UNITOPSCI Single Din Car Stereo is designed for universal single DIN dash openings. The unit's dimensions are approximately 188mm (7.4 inches) in length and 58mm (2.2 inches) in height. Please measure your vehicle's dash opening to ensure compatibility.

Wiring harness for the car stereo.

Descrición da imaxe: A close-up of the wiring harness, showing multiple colored wires for power, ground, accessory, and speaker connections. This harness connects to the vehicle's existing wiring.

  1. Desconectar batería: Before starting installation, disconnect the negative terminal of your vehicle's battery to prevent electrical shorts.
  2. Eliminar a unidade antiga: Retire con coidado o estéreo do coche existente do taboleiro.
  3. Conectar cableado: Match the wires from the car stereo's harness to your vehicle's wiring harness. Refer to the wiring diagram provided with your vehicle or the stereo for correct connections (typically Red for ACC, Yellow for 12V constant, Black for Ground, and colored wires for speakers).
  4. Unidade de montaxe: Slide the car stereo into the single DIN opening in your dashboard. Secure it using the provided mounting hardware or brackets.
  5. Volver conectar a batería: Once the unit is securely installed and all wiring is checked, reconnect the negative terminal of your vehicle's battery.
  6. Funcionalidade de proba: Power on the unit and test all functions (radio, Bluetooth, USB, AUX, sound output) before fully reassembling the dashboard.

Nota: If your vehicle's dash opening is larger than the stereo, a dash kit may be required for a proper fit.

6. Configuración

6.1 Encendido inicial

After installation, press and hold the ① MODE botón para acender a unidade. A pantalla iluminarase.

6.2 Axustar o reloxo

  1. Mantén presionado MUTE/CLK button until the clock display flashes.
  2. Usa o Botón de volume para axustar as horas.
  3. Preme o Botón de volume to switch to minutes adjustment.
  4. Usa o Botón de volume para axustar os minutos.
  5. Preme o MUTE/CLK botón de novo para gardar e saír.

7. Instrucións de funcionamento

7.1 Funcionamento da radio FM

Car stereo displaying FM radio frequency.

Descrición da imaxe: The car stereo's display showing 'FM 87.5', indicating it is in FM radio mode and tuned to 87.5 MHz. An equalizer graphic is also visible on the display.

  • Seleccionar o modo FM: Preme o ① MODE button until 'FM' appears on the display.
  • Change Band: Prema brevemente o BANDA / AMS para cambiar entre as bandas FM1, FM2 e FM3.
  • Escaneo automático: Mantén presionado BANDA / AMS button to automatically scan for and store strong stations in the current band.
  • Sintonización manual: Prema brevemente o ◀◀ or ▶▶ buttons to tune to the next/previous station.
  • Estacións predefinidas: Short press preset buttons 1-6 to recall stored stations. To store a station, tune to the desired frequency, then long press a preset button (1-6) until you hear a beep.

7.2 Funcionamento Bluetooth

Car stereo in a dashboard with a phone showing an incoming call, illustrating Bluetooth hands-free calling.

Descrición da imaxe: The car stereo installed in a vehicle's dashboard, with a smartphone displaying an incoming call. A Bluetooth icon is shown, emphasizing the hands-free calling feature of the stereo.

  • Emparejamento:
    1. Preme o ① MODE button to select 'BT' mode. The display will show 'BT'.
    2. No teu dispositivo móbil, activa o Bluetooth e busca os dispositivos dispoñibles.
    3. Select 'CAR BT' (or similar name) from the list. The default pairing code is '0000'.
    4. Once paired, the display will show 'BT ON' or a similar confirmation.
  • Chamadas mans libres:
    1. Responder chamada: When a call comes in, short press the BANDA / AMS botón.
    2. Finalizar a chamada: Durante unha chamada, prema brevemente o botón ① MODE botón para finalizar a chamada.
    3. Volver marcar: Prema brevemente o BANDA / AMS botón para remarcar o último número.
  • Transmisión de audio por Bluetooth: After pairing, you can play music from your mobile device through the car stereo. Use the ◀◀ e ▶▶ buttons to skip tracks, and the 1 button for play/pause.

Reprodución por USB 7.3

Car stereo with connections for USB drive, AUX cable, and a phone charging via USB.

Descrición da imaxe: The car stereo's front panel, illustrating its connectivity options. It shows a USB flash drive connected for media playback, a 3.5mm AUX cable connected, and a smartphone connected to the fast-charging USB port, indicating multiple audio input and charging capabilities.

  • Insira unha unidade flash USB que conteña son MP3/WMA files into the designated USB port (usually the left one). The unit will automatically switch to USB mode and begin playback.
  • Usa o ◀◀ e ▶▶ botóns para saltar pistas.
  • Preme o 1 button for play/pause.
  • The other USB port is for fast charging mobile devices.

7.4 Entrada AUX

  • Connect an external audio device (e.g., smartphone, MP3 player) to the 3.5mm AUX-in port on the front panel using an audio cable.
  • Preme o ① MODE button until 'AUX' appears on the display.
  • Control playback from your connected device. The car stereo's volume control will adjust the output level.

7.5 Audio Settings and Display

Car stereo display showing various backlight colors.

Descrición da imaxe: A series of images demonstrating the car stereo's LCD display with 7 different colorful backlight options, including red, yellow, green, blue, purple, cyan, and white. This highlights the customizable visual effects of the unit.

  • Axustes de audio: Preme o Botón de volume repeatedly to cycle through audio settings such as BASS, TREBLE, BALANCE (L/R), FADER (F/R), and EQ (Equalizer presets like POP, ROCK, CLASSIC, JAZZ). Rotate the knob to adjust the selected setting.
  • Retroiluminación colorida: The unit features a digital LCD display with 7 variable backlight colors. These can typically be adjusted through the audio settings menu or a dedicated button (refer to specific model features if available).

8. Mantemento

  • Limpeza: Usa un pano suave e seco para limpar o panel frontal. Non empregues produtos de limpeza abrasivos nin disolventes.
  • Evita temperaturas extremas: Prolonged exposure to direct sunlight or extreme cold can affect the unit's performance and lifespan.
  • Substitución de fusibles: If the unit does not power on, check the fuse located on the rear of the unit. Replace it with a fuse of the same rating (e.g., 10A).

9 Solución de problemas

ProblemaCausa posibleSolución
Sen poderIncorrect wiring; Blown fuse; Loose connectionCheck power and ground connections; Replace fuse; Ensure all wires are securely connected.
Sen sonSpeaker wires disconnected; Volume too low; Mute function active; Incorrect audio source selectedCheck speaker connections; Increase volume; Deactivate mute; Select correct audio source (FM, BT, USB, AUX).
Bluetooth non se sincronizaBluetooth not enabled on device; Incorrect pairing code; Unit not in BT modeEnsure Bluetooth is on and discoverable on your phone; Use '0000' as pairing code; Switch stereo to BT mode.
Non se reproduce o USBNon é compatible file format; USB drive corrupted; USB drive not inserted correctlyGarantir files are MP3/WMA; Try a different USB drive; Reinsert USB drive firmly.
Mala recepción FMAntena non conectada; Zona de sinal débil; Antena danadaCheck antenna connection; Try auto-scanning in a different location; Inspect antenna for damage.

10. Especificacións

  • Número de modelo: A3255
  • Dimensións do produto: 0.39 x 0.39 x 0.39 inches (Unit dimensions: 188mm x 58mm x 100mm)
  • Peso do artigo: 15.8 onzas
  • Tecnoloxía de conectividade: Bluetooth, USB
  • Tipo de controlador: Control manual
  • Características especiais: Built-In Bluetooth, Digital Display Screen, FM Tuner, Hands-Free Calling, Dual USB (Playback/Charging)
  • Dispositivos compatibles: Smartphone, altofalante
  • Tipo de conector: Stereo Audio (AUX), USB 2.0
  • Modo de saída de audio: Estéreo
  • Configuración da canle de son envolvente: 4 Canle
  • Potencia de saída: 4*60 Watts (Max)
  • Frecuencia de radio FM: 87.5 ~ 108 MHz

11. Garantía e soporte

UNITOPSCI provides comprehensive customer support for its products.

  • Substitución: Available within 24 months of purchase.
  • Devolucións: 60-day no-worry return policy.
  • Soporte técnico: Lifetime after-sales consultation and technical support are available.
  • Contacto: For support inquiries, please email UNITOPSCI@126.com.

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