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

1. تعارف

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. اہم حفاظتی ہدایات

• بجلی کی فراہمی: Ensure the unit is connected to a power supply within the specified voltage range (230 Volt AC). Always use the provided power cable.
• وینٹیلیشن: Do not block any ventilation openings. Install in accordance with the manufacturer's instructions to prevent overheating.
• پانی اور نمی: Do not expose this apparatus to rain or moisture. Do not use near water or in damp ماحولیات
• صفائی: Clean only with a dry cloth. Disconnect from power before cleaning.
• سروسنگ: Do not attempt to service this unit yourself. Refer all servicing to qualified service personnel. Opening the unit may expose you to dangerous voltages یا دیگر خطرات۔
• جگہ کا تعین: 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. پیکیج کے مشمولات

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 پاور کیبل۔
• ایف ایم اینٹینا
• بلوٹوتھ اینٹینا
• Remote Control (IRC-A)
• Terminal Blocks (for Emergency Input and External Mute)

تصویر 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.

تصویر 4.1: سامنے والا 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 سطح: 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.
• ڈسپلے: Shows current mode, track information, FM frequency, or Bluetooth status.
• سورس بٹن: Selects input source (USB, SD, FM, Bluetooth, Line 1, Line 2).
• موڈ بٹن: 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: ہیڈ فون آؤٹ پٹ کے لیے والیوم کو ایڈجسٹ کرتا ہے۔
• PHONES (1/4" Jack): نگرانی کے لیے ہیڈ فون آؤٹ پٹ۔
• پاور ایل ای ڈی: Indicates the unit's power status.
• LEVEL Meters: Visual indication of output signal levels.

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

تصویر 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.

تصویر 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. ریئر پینل کنکشنز

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

تصویر 5.1: پیچھے 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 ampلائفیر یا طاقت سے چلنے والے اسپیکر۔
• 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.
• MIC Input (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. سیٹ اپ اور انسٹالیشن

6.1. ریک بڑھتے ہوئے

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. پاور کنکشن

1. یقینی بنائیں کہ یونٹ کا پاور سوئچ آف پوزیشن میں ہے۔
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. آڈیو رابطے

1. ان پٹ ذرائع: 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. آؤٹ پٹ: 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. اینٹینا کنکشنز

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. آپریٹنگ ہدایات

7.1. پر / آف پاور

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. دبائیں ذریعہ button until 'USB' or 'SD' is displayed.
3. The unit will automatically begin playing compatible audio files.
4. استعمال کریں۔ SEQ buttons (Play/Pause, Next/Previous) to control playback.
5. دبائیں موڈ button to cycle through playback modes (e.g., repeat one, repeat all, random).

7.3. بلوٹوت آپریشن۔

1. دبائیں ذریعہ button until 'BT' (Bluetooth) is displayed. The unit will enter pairing mode, indicated by a flashing 'BT' on the display.
2. اپنے بلوٹوتھ فعال ڈیوائس (اسمارٹ فون، ٹیبلیٹ) پر دستیاب بلوٹوتھ ڈیوائسز تلاش کریں۔
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. ایف ایم ریڈیو

1. دبائیں ذریعہ 'ایف ایم' ظاہر ہونے تک بٹن۔
2. استعمال کریں۔ 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. مائکروفون ان پٹ

1. Connect your microphone to either the front or rear MIC input.
2. کو ایڈجسٹ کریں۔ ایم آئی سی لیول knob on the front panel to achieve the desired volume.
3. استعمال کریں۔ MIC EQ (High/Low) knobs to adjust the tone of the microphone.

7.6. Mixer Functions

1. Adjust the individual لیول knobs for Line 1, Line 2, and the media player to balance the input sources.
2. استعمال کریں۔ ماسٹر 1 اور MASTER 2 Level knobs to control the overall output volume.
3. دی ماسٹر ای کیو (High/Low) allows for overall tone adjustment of the main mix.
4. ہیڈ فون کو سے جوڑیں۔ فونز jack and adjust the CUE Volume نگرانی کے لیے.

7.7. Remote Control (IRC-A)

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

تصویر 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.
• سورس بٹن: ان پٹ ذرائع کے ذریعے سائیکل۔
• VOLUME Up/Down: ماسٹر آؤٹ پٹ والیوم کو ایڈجسٹ کرتا ہے۔

8 دیکھ بھال

• صفائی: Regularly wipe the unit with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays.
• وینٹیلیشن: Ensure that the ventilation openings are free from dust and debris to maintain proper airflow.
• ذخیرہ: اگر یونٹ کو لمبے عرصے تک ذخیرہ کر رہے ہیں، تو اسے بجلی سے منقطع کریں اور اسے براہ راست سورج کی روشنی اور انتہائی درجہ حرارت سے دور کسی ٹھنڈی، خشک جگہ پر محفوظ کریں۔

9. ٹربل شوٹنگ گائیڈ

• کوئی طاقت نہیں:
  • Check if the power cable is securely connected to the unit and the power outlet.
  • یقینی بنائیں کہ پاور آؤٹ لیٹ فعال ہے۔
  • Verify the power switch on the front panel is in the ON position.
• کوئی آواز آؤٹ پٹ نہیں:
  • Check all audio cable connections to and from the unit.
  • Ensure the correct input source is selected using the ذریعہ بٹن
  • تصدیق کریں کہ ماسٹر لیول knobs are turned up.
  • Check the volume levels on your connected ampلائفائر یا طاقتور اسپیکر۔
  • If using a microphone, ensure its سطح knob is turned up.
• بلوٹوتھ کنیکٹ نہیں ہو رہا ہے:
  • 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.
  • آلہ کا جوڑا ختم کرنے اور دوبارہ جوڑا بنانے کی کوشش کریں۔
• USB/SD Media Not Playing:
  • یقینی بنائیں کہ USB ڈرائیو یا SD کارڈ صحیح طریقے سے داخل کیا گیا ہے۔
  • تصدیق کریں کہ 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. تکنیکی تفصیلات

• ماڈل: B4.2 Mediamix
• برانڈ: JBSYSTEMS
• مصنوعات کے طول و عرض: 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.)
• صنعت کار حوالہ: 001BE/8400
• طاقت کا منبع: کورڈڈ الیکٹرک
• والیومtage: 230 وولٹ
• کنیکٹوٹی ٹیکنالوجی: بلوٹوتھ
• پہلی دستیاب تاریخ: 15 جنوری 2020

11. وارنٹی اور سپورٹ

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.