F&D A521
F&D A521 2.1 Channel USB Speaker User Manual
Model: A521 | Brand: F&D
1. تعارف
This user manual provides detailed instructions for the setup, operation, and maintenance of your F&D A521 2.1 Channel USB Speaker system. Please read this manual thoroughly before using the product to ensure proper functionality and to prevent damage.
The F&D A521 is a 16 Watt 2.1 channel speaker system designed to deliver clear audio with strong bass, featuring USB/SD card playback and a wooden cabinet for enhanced sound quality.
2. حفاظت جي ڄاڻ
بجليءَ جي جھٽڪي، باهه، يا يونٽ کي نقصان کان بچڻ لاءِ هميشه هيٺ ڏنل حفاظتي هدايتن تي عمل ڪريو:
- يونٽ کي مينهن يا نمي کي ظاهر نه ڪريو.
- Do not open the speaker cabinet. Refer all servicing to qualified personnel.
- اسپيڪرن جي چوڌاري مناسب وينٽيليشن کي يقيني بڻايو وڃي.
- بجلي جي طوفان دوران يا ڊگهي عرصي تائين استعمال نه ٿيڻ تي بجلي جي تار کي ڪٽي ڇڏيو.
- گرمي جي ذريعن ۽ سڌي سج جي تپش کان پري رکو.
3. پيڪيج مواد
مھرباني ڪري ھيٺ ڏنل شين لاءِ پيڪيج چيڪ ڪريو:
- 1 x F&D A521 Subwoofer Unit
- 2 x سيٽلائيٽ اسپيڪر
- 1 x Audio Input Cable (RCA to 3.5mm or RCA to RCA, depending on model variant)
- 1 x استعمال ڪندڙ دستياب (هي دستاويز)
4. پراڊڪٽ ختمview
The F&D A521 speaker system consists of a main subwoofer unit and two satellite speakers.

Figure 4.1: F&D A521 2.1 Channel USB Speaker System, showing the subwoofer and two satellite speakers.

شڪل 4.2: پوئتي view of the F&D A521 subwoofer, highlighting the control panel with volume, bass, audio input/output, USB, and SD card slots.

شڪل 4.3: تفصيلي view of the USB and SD card reader slots located on the F&D A521 subwoofer's side panel.
5. سيٽ اپ جون هدايتون
- لڳائڻ: Place the subwoofer on a stable, flat surface. Position the satellite speakers equidistant from your listening position for optimal stereo separation.
- سيٽلائيٽ اسپيڪرز کي ڳنڍيو: Connect the cables from the two satellite speakers to the "AUDIO OUTPUT" ports on the rear panel of the subwoofer. Ensure correct polarity (red to red, black to black).

شڪل 5.1: پوئتي view of the F&D A521 satellite speakers, showing the speaker wire connection point.
- آڊيو ذريعو ڳنڍيو: Connect your audio source (e.g., PC, TV, MP3 player) to the "AUDIO INPUT" ports on the rear panel of the subwoofer using the provided audio cable.
- پاور ڪنيڪشن: Plug the power cord into a suitable AC power outlet. The system features a built-in Automatic Voltage Regulator (AVR) for a wide main operating voltage حد.
- پاور آن: Turn on the power switch located on the rear panel of the subwoofer.
6. آپريٽنگ هدايتون
6.1 بنيادي آپريشن
- حجم ڪنٽرول: Use the "VOLUME" knob on the rear panel of the subwoofer to adjust the overall sound level.
- بيس ڪنٽرول: Use the "BASS" knob to adjust the bass intensity.
6.2 USB/SD ڪارڊ پلے بیک
The F&D A521 supports MP3/WMA dual formats decoding from USB drives and SD cards.
- Insert a USB drive or SD card into the respective slot on the subwoofer's side panel.
- The system will automatically switch to USB/SD mode and begin playback.
- Use the "Play/Pause", "Next", and "Previous" buttons located near the USB/SD slots for media control.
7. اهم خاصيتون
- Built-in AVR (Automatic Voltage Regulator) for wide main operating voltage حد.
- USB/SD reader supporting MP3/WMA dual formats decoding.
- Wooden cabinet construction for strong and low distortion bass.
- High efficient energy saving design for low power consumption.
- Dedicated Play/Pause, Next, Previous buttons for USB/SD reader control.
- 6.5-inch bass driver for the subwoofer.
8. وضاحتون
| خاصيت | تفصيل |
|---|---|
| برانڊ | F&D |
| ماڊل نالو | A521 |
| اسپيڪر جو قسم | Subwoofer |
| چوڌاري آواز چينل جي جوڙجڪ | 2.1 |
| اسپيڪر وڌ ۾ وڌ آئوٽ پاور | 16 واٽ |
| واتtage | 52.00 ڊبليو |
| رابطي ٽيڪنالاجي | USB ، وائرڊ |
| ڪنيڪشن پروٽوڪول | USB |
| Audio Input Compatible With | معاون |
| مطابقت رکندڙ ڊوائيسز | MP3 Player, Smartphone, Tablet, Television |
| مواد | ڪاٺ |
| رنگ | ڪارو |
| شيءِ جو وزن | 5 ڪلو 420 گرام (11.95 پائونڊ) |
| پيڪيج جي ماپ | 43.4 x 29.6 x 29.4 سينٽي |
| ڪنٽرول جو طريقو | Touch (for USB/SD controls) |
| آڊيو ڊرائيور جي ماپ | 6.5 Inches (Bass Driver) |
9. سار سنڀال
- صفائي: اسپيڪر جي مٿاڇري کي صاف ڪرڻ لاءِ نرم، سڪل ڪپڙو استعمال ڪريو. مائع صاف ڪندڙ يا ايروسول استعمال نه ڪريو.
- اسٽوريج: جيڪڏهن يونٽ کي گهڻي عرصي تائين ذخيرو ڪري رهيا آهيو، ته ان کي بجلي کان ڌار ڪريو ۽ ٿڌي، سڪل جاءِ تي ذخيرو ڪريو.
- وينٽيليشن: پڪ ڪريو ته وينٽيليشن جا دروازا بند نه آهن.
10. مسئلا حل ڪرڻ
| مسئلو | ممڪن سبب | حل |
|---|---|---|
| آواز ڪونهي | Power not connected; Volume too low; Incorrect audio input connection; Audio source issue. | Check power cord and switch; Increase volume; Ensure audio cables are securely connected to correct input; Test with another audio source. |
| بگڙيل آواز | Volume too high; Audio source distortion; Incorrect bass setting. | Reduce volume; Check audio source output; Adjust bass knob. |
| USB/SD پلے بیک ڪم نه ڪري رهيو آهي | اڻ سڌريل file format; USB drive/SD card not inserted correctly; Corrupted media. | يقين ڏياريو files are MP3/WMA; Reinsert media; Try a different USB drive/SD card. |
11. وارنٽي ۽ سپورٽ
The F&D A521 2.1 Channel USB Speaker comes with a 1 سال وارنٽي خريداري جي تاريخ کان. مھرباني ڪري وارنٽي دعوائن لاءِ پنھنجي خريداري جي رسيد رکو.
For technical support or warranty service, please contact F&D customer service through their official webسائيٽ يا مجاز سروس سينٽرن کان.
Note: The warranty does not cover damage caused by misuse, accident, unauthorized modification, or improper installation.
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