JB-systems B4.2 Mediamix Media Player/Mixer User Manual

1. Вовед

The JB-systems B4.2 Mediamix is a versatile media player and mixer designed for professional audio applications. It integrates a media player capable of reading USB drives and SD cards, an FM radio tuner, and a Bluetooth receiver, all within a compact 1U rack-mountable chassis. This manual provides detailed instructions for the safe and efficient operation of your B4.2 Mediamix unit.

2. Важни безбедносни инструкции

• Напојување: Осигурајте се дека уредот е поврзан со напојување во рамките на наведениот волуменtage range (230 Volt AC). Always use the provided power cable.
• Вентилација: Do not block any ventilation openings. Install in accordance with the manufacturer's instructions to prevent overheating.
• Вода и влага: Do not expose this apparatus to rain or moisture. Do not use near water or in damp средини.
• Чистење: Чистете само со сува крпа. Исклучете го од струја пред чистење.
• Сервисирање: Do not attempt to service this unit yourself. Refer all servicing to qualified service personnel. Opening the unit may expose you to dangerous voltages или други опасности.
• Поставување: Place the unit on a stable, level surface or mount it securely in a 19-inch rack. Avoid placing it near heat sources or in direct sunlight.

3. Содржина на пакетот

Carefully unpack your B4.2 Mediamix and check that all items listed below are present and in good condition. If any items are missing or damaged, contact your dealer immediately.

• JB-systems B4.2 Mediamix unit
• AC кабел за напојување
• FM антена
• Bluetooth антена
• Remote Control (IRC-A)
• Terminal Blocks (for Emergency Input and External Mute)

Слика 3.1: Included accessories for the B4.2 Mediamix. This image displays the FM antenna, Bluetooth antenna, various terminal blocks, and a coaxial cable, which are typically supplied with the unit.

4. Front Panel Controls and Connections

The front panel provides access to all primary controls and inputs for the B4.2 Mediamix. Familiarize yourself with these components for effective operation.

Слика 4.1: Предна страна view of the B4.2 Mediamix. This image shows the entire front panel, including microphone inputs, EQ controls, media player section, display, master output controls, and headphone jack.

4.1. Detailed Controls

• MIC Input (1/4" Jack): Connect a microphone here.
• MIC Level: Adjusts the input level of the microphone.
• MIC EQ (High/Low): Tone controls for the microphone input.
• AUX LINE Input (1/8" Jack): Auxiliary stereo input for external devices.
• LINE 1/2 Level: Adjusts the input level for Line 1 and Line 2.
• USB/SD Player: Slot for USB drives and SD cards.
• Прикажи: Shows current mode, track information, FM frequency, or Bluetooth status.
• Копче SOURCE: Selects input source (USB, SD, FM, Bluetooth, Line 1, Line 2).
• Копче MODE: Changes playback mode (e.g., repeat, random).
• SEQ Buttons: Navigation and playback controls for media player (Play/Pause, Next/Previous).
• MASTER 1/2 Level: Controls the overall output level for Master 1 and Master 2.
• MASTER EQ (High/Low): Tone controls for the master output.
• CUE Volume: Ја прилагодува јачината на звукот за излезот за слушалки.
• PHONES (1/4" Jack): Излез за слушалки за мониторинг.
• LED напојување: Indicates the unit's power status.
• Мерачи на ниво: Visual indication of output signal levels.

Слика 4.2: Left side of the front panel. This close-up highlights the microphone input, its level control, and the high/low EQ knobs.

Слика 4.3: Center section of the front panel. This image details the USB and SD card slots, the digital display, and the media player control buttons including Source, Mode, and navigation.

Слика 4.4: Right side of the front panel. This close-up shows the Master 1 and Master 2 level controls, master EQ, cue volume, headphone output, and the power level meters.

5. Приклучоци на задниот панел

The rear panel houses all the input and output connections for integrating the B4.2 Mediamix into your audio system.

Слика 5.1: Заден дел view of the B4.2 Mediamix. This image displays the AC mains input, Master 1 and Master 2 outputs (both balanced and unbalanced), REC output, Line 1 and Line 2 inputs, a dedicated microphone input, emergency input, external mute terminals, and antenna connections for FM and Bluetooth.

5.1. Detailed Connections

• AC MAINS Input: Power connection for the unit.
• MASTER 1/2 Outputs (Balanced XLR & Unbalanced RCA): Main audio outputs to connect to ampлајфикатори или звучници со напојување.
• REC Output (RCA): Stereo output for connecting to a recording device.
• LINE 1/2 Inputs (RCA): Stereo inputs for connecting external audio sources like CD players or other mixers.
• Влез за микрофон (XLR): Balanced microphone input.
• EMERGENCY INPUT (Terminal Block): For integration with emergency announcement systems.
• EXTERNAL MUTE (Terminal Block): For remote muting of the unit.
• FM ANTENNA Connector: For connecting the supplied FM antenna.
• BLUETOOTH ANTENNA Connector: For connecting the supplied Bluetooth antenna.

6. Поставување и инсталација

6.1. Монтирање на решетката

The B4.2 Mediamix is designed for standard 19-inch rack mounting. Secure the unit using appropriate rack screws through the mounting ears on both sides of the front panel. Ensure adequate ventilation around the unit.

6.2. Поврзување за напојување

1. Осигурајте се дека прекинувачот за напојување на уредот е во положба OFF (ИСКЛУЧЕНО).
2. Connect the supplied AC power cable to the AC MAINS input on the rear panel.
3. Plug the other end of the power cable into a suitable 230 Volt AC power outlet.

6.3. Аудио врски

1. Влезни извори: Connect your external audio sources (e.g., CD players, laptops) to the LINE 1 or LINE 2 RCA inputs on the rear panel. For microphones, use either the front panel 1/4" jack or the rear panel XLR input.
2. Излези: Connect the MASTER 1 and/or MASTER 2 outputs (XLR for balanced, RCA for unbalanced) to your amplifier, powered speakers, or main sound system. Use the REC output for connecting to a recording device.

6.4. Антенски приклучоци

1. Screw the supplied FM antenna to the FM ANTENNA connector on the rear panel. Extend the antenna for optimal reception.
2. Screw the supplied Bluetooth antenna to the BLUETOOTH ANTENNA connector on the rear panel.

7. Упатства за работа

7.1. Вклучување/исклучување

Press the power button on the front panel to turn the unit ON or OFF. The POWER LED will illuminate when the unit is on.

7.2. Media Player (USB/SD)

1. Insert a USB drive into the USB slot or an SD card into the SD card slot on the front panel.
2. Притиснете го ИЗВОР button until 'USB' or 'SD' is displayed.
3. The unit will automatically begin playing compatible audio files.
4. Користете го SEQ buttons (Play/Pause, Next/Previous) to control playback.
5. Притиснете го РЕЖИМ button to cycle through playback modes (e.g., repeat one, repeat all, random).

7.3. Работа со Bluetooth

1. Притиснете го ИЗВОР button until 'BT' (Bluetooth) is displayed. The unit will enter pairing mode, indicated by a flashing 'BT' on the display.
2. On your Bluetooth-enabled device (smartphone, tablet), search for available Bluetooth devices.
3. Select 'B4.2 Mediamix' from the list to pair. Once paired, the 'BT' indicator will become solid.
4. You can now play audio from your device through the B4.2 Mediamix.

7.4. FM радио

1. Притиснете го ИЗВОР копчето додека не се прикаже „FM“.
2. Користете го SEQ buttons to manually tune to a station or press and hold to auto-scan for stations.
3. Stations can be saved as presets using the remote control.

7.5. Влез за микрофон

1. Connect your microphone to either the front or rear MIC input.
2. Прилагодете го Ниво на MIC knob on the front panel to achieve the desired volume.
3. Користете го MIC EQ (High/Low) knobs to adjust the tone of the microphone.

7.6. Функции на миксер

1. Прилагодете го поединецот НИВО knobs for Line 1, Line 2, and the media player to balance the input sources.
2. Користете го MASTER 1 и MASTER 2 Level knobs to control the overall output volume.
3. На MASTER EQ (High/Low) allows for overall tone adjustment of the main mix.
4. Поврзете слушалки со ТЕЛЕФОНИ дигалката и прилагодете го CUE Volume за следење.

7.7. Remote Control (IRC-A)

The included remote control provides convenient access to media player and FM radio functions.

Слика 7.1: IRC-A Remote Control. This image displays the remote control unit with buttons for media player transport (play, pause, skip), FM radio presets (1-9), source selection, and volume adjustment.

• Media Player Transport Control: Play, Pause, Next Track, Previous Track.
• FM Radio Presets (1-9): Directly select saved FM stations.
• MEDIA / RADIO Buttons: Navigate between media player and radio modes.
• Копче SOURCE: Циклично се движи низ влезните извори.
• VOLUME Up/Down: Ја прилагодува јачината на звукот на главниот излез.

8. Одржување

• Чистење: Regularly wipe the unit with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays.
• Вентилација: Ensure that the ventilation openings are free from dust and debris to maintain proper airflow.
• Складирање: Доколку го складирате уредот подолг период, исклучете го од струја и складирајте го на ладно и суво место, подалеку од директна сончева светлина и екстремни температури.

9. Водич за решавање проблеми

• Без моќност:
  • Проверете дали кабелот за напојување е безбедно поврзан со уредот и штекерот.
  • Проверете дали штекерот е функционален.
  • Verify the power switch on the front panel is in the ON position.
• Нема излез на звук:
  • Check all audio cable connections to and from the unit.
  • Ensure the correct input source is selected using the ИЗВОР копче.
  • Потврдете дека МАСТЕР Ниво knobs are turned up.
  • Check the volume levels on your connected ampзајакнувач или звучници со напојување.
  • If using a microphone, ensure its Ниво knob is turned up.
• Bluetooth не се поврзува:
  • Ensure the B4.2 Mediamix is in Bluetooth mode ('BT' flashing on display).
  • Make sure Bluetooth is enabled on your transmitting device.
  • Move your device closer to the B4.2 Mediamix.
  • Обидете се да го распарите и повторно да го спарите уредот.
• USB/SD Media Not Playing:
  • Проверете дали USB-уредот или SD-картичката се правилно вметнати.
  • Потврдете дека files are in a supported audio format (e.g., MP3, WAV).
  • Check if the media is corrupted or empty.
  • Ensure 'USB' or 'SD' is selected as the source.

10. Технички спецификации

• Модел: B4.2 Mediamix
• Бренд: JBSYSTEMS
• Димензии на производот: 5199.99 x 2500 x 950 cm (Note: These dimensions appear unusually large and may represent packaging or an error in source data. Refer to product packaging for accurate dimensions.)
• Референца на производителот: 001BE/8400
• Извор на енергија: Електричен со кабел
• Voltage: 230 волти
• Технологија за поврзување: Bluetooth
• Прв достапен датум: 15 јануари 2020 година

11. Гаранција и поддршка

This product is covered by a manufacturer's warranty. Please refer to the warranty card included with your product or contact your local dealer for specific warranty terms and conditions. For technical support or service inquiries, please contact your authorized JBSYSTEMS dealer or distributor.