1. Introduzzjoni
The Daakro ZK-502L is a high-fidelity 2.0 channel Bluetooth amplifier board designed for DIY audio projects. It delivers 50W + 50W output power, features dual audio input modes (Bluetooth 5.0 and AUX), and operates within a wide DC 9-24V voltage range. This manual provides detailed instructions for the proper setup, operation, and maintenance of your ampbord aktar ħaj.
2. Karatteristiċi tal-prodott
- Dual HiFi Chip: Utilizes two HiFi amplifier chips with PurePath technology for ultra-high resolution, low distortion, and high-fidelity sound.
- 2.0 Channel Output: Supports left and right channel configuration, providing 50W output power per channel for an immersive sound experience.
- Dual Audio Input Modes: Seamlessly switch between Bluetooth 5.0 for wireless connectivity and traditional AUX input for wired audio sources.
- VoltagFirxa e: Compatible with DC 9-24V power supplies, allowing flexibility with 9V, 12V, 19V, or 24V sources.
- Kompatibbiltà tal-Ispeaker: Suitable for 20-200W, 4-8Ω speakers, ensuring broad compatibility with various speaker sizes.
- Protezzjoni Komprensiva: Built-in mechanisms include over-voltage, taħt il-voltage, over-temperature, short-circuit, and reverse connection protection for device safety.
- Kontroll tal-Volum: Integrated volume knob for easy adjustment of audio output.
3. Kontenut tal-Pakkett
Iċċekkja li l-oġġetti kollha elenkati hawn taħt huma preżenti fil-pakkett tiegħek:
- ZK-502L AmpBord aktar ħaj
- Top and Bottom Acrylic Plates
- Mounting Hardware (Screws, Spacers, Nuts)
- Volume Knob Cap
- Kejbil tal-Enerġija DC
- Tornavit Żgħir
4. Identifikazzjoni tal-Komponent
Familiarize yourself with the various components and connection points on the ampbord tal-lifer:
- Power Input (DC 9-24V): Connect your DC power supply here.
- Left Channel Output (-L +): Connect the left speaker here.
- Right Channel Output (-R +): Connect the right speaker here.
- Kontroll tal-Volum: Pum li jdur biex jaġġusta l-livell tal-ħruġ tal-awdjo.
- Indikatur Bluetooth: LED light indicating Bluetooth status.
- Input AUX: Jack ta' 3.5mm għal konnessjoni awdjo bil-fili.
5. Speċifikazzjonijiet Tekniċi
| Speċifikazzjoni | Valur |
|---|---|
| Numru tal-Mudell | ZK-502L |
| Kanali | 2.0 (Stereo) |
| Qawwa tal-Ħruġ | 50W + 50W |
| Input Voltage | DC 9-24V |
| Inputs tal-awdjo | Bluetooth 5.0, AUX (3.5mm) |
| Impedenza tal-Ispeaker | 4-8Ω |
| Dimensjonijiet (L x W x H) | 4.33 x 2.76 x 1.97 pulzieri (madwar) |
| Piż | 2.39 uqija (madwar) |
6. Power Output Guidelines
The actual output power varies depending on the input voltage and speaker impedance. Refer to the table below for typical power output values:
| Input Voltage | Impedenza tal-Ispeaker | Output Power (@1KHz) |
|---|---|---|
| 12V | 4Ω | 20W + 20W |
| 12V | 8Ω | 12W + 12W |
| 15V | 4Ω | 30W + 30W |
| 15V | 8Ω | 18W + 18W |
| 19V | 4Ω | 40W + 40W |
| 19V | 8Ω | 30W + 30W |
| 24V | 4Ω | 50W + 50W |
| 24V | 8Ω | 40W + 40W |
Jekk jogħġbok Innota: Optimal audio output requires sufficient audio input combined with appropriate power supply voltage and current. A higher voltage and current generally result in higher power output. For the same conditions, a smaller speaker impedance will yield greater power.
7. Istruzzjonijiet ta' Setup
Follow these steps to set up your Daakro ZK-502L ampbord tal-lifer:
- Assemble the Casing (Optional): If your board came with acrylic plates, use the provided screws and spacers to assemble the protective casing around the ampbord aktar ħaj.
- Qabbad l-Ispeakers: Connect your passive speakers to the Left Channel Output (-L +) and Right Channel Output (-R +) terminals. Ensure correct polarity (+ to + and - to -).
- Qabbad il-Provvista tal-Enerġija: Connect a DC 9-24V power adapter (not included) to the Power Input jack. Ensure the power supply meets the voltage and current requirements for your desired output.
- Issettjar tal-Volum Inizjali: Turn the volume control knob counter-clockwise to its minimum position before powering on.
8. Istruzzjonijiet Operattivi
The ZK-502L amplifier board supports two audio input modes:
8.1. Modalità Bluetooth
- Qawwa Mixgħul: Tiżgura l- amplifier board is powered on. The Bluetooth indicator LED will blink, indicating it is in pairing mode.
- Tqabbil: On your audio source device (e.g., smartphone, tablet, PC), enable Bluetooth and search for available devices. Select "ZK-502L" from the list.
- Konferma tal-Konnessjoni: Once successfully paired, the Bluetooth indicator LED will stop blinking and remain solid.
- Daqq l-Awdjo: Start playing audio on your connected device. Adjust the volume using the amplifier board's volume knob and your source device's volume controls.
8.2. Modalità tad-Dħul AUX
- Qabbad AUX Cable: Insert a 3.5mm audio cable (not included) into the AUX Input jack on the amplifier board. Connect the other end to your audio source device's headphone or audio output jack.
- Qlib Awtomatiku: Il- amplifier board will automatically switch to AUX input mode when a cable is detected.
- Daqq l-Awdjo: Start playing audio on your connected device. Adjust the volume using the amplifier board's volume knob and your source device's volume controls.
9. Prekawzjonijiet tas-Sigurtà
- Tiżgura l-provvista tal-enerġija voltage is within the DC 9-24V range. Using an incorrect voltage jistgħu jagħmlu ħsara lill-apparat.
- Do not short-circuit the speaker outputs or power input.
- Avoid exposing the board to moisture, extreme temperatures, or direct sunlight.
- Handle the board with care to prevent damage to components.
- Skonnettja l-enerġija qabel ma tagħmel xi konnessjonijiet jew skonnessjonijiet.
- Do not attempt to modify the circuit board, as this will void the warranty and may cause damage.
10 Issolvi l-problemi
- Ebda Ħsejjes:
- Iċċekkja jekk il-provvista tal-enerġija hijiex imqabbda sew u tipprovdi l-volum korretttage.
- Verify speaker connections for correct polarity and secure contact.
- Ensure the volume knob is turned up on both the amplifier board and the audio source device.
- If using Bluetooth, ensure the device is paired and connected. If using AUX, ensure the cable is fully inserted.
- Ħoss Mgħawġ:
- Naqqas il-volum fuq iż-żewġ amplifier u l-apparat tas-sors.
- Ensure the power supply can provide sufficient current for the desired output power.
- Check speaker impedance compatibility (4-8Ω).
- Skonnettjar Bluetooth:
- Ensure the audio source device is within the 16.4 feet (5 meters) Bluetooth range.
- Evita ostakli li jistgħu jinterferixxu mas-sinjal Bluetooth.
- Ipprova neħħi l-akkoppjar u erġa' qabbad l-apparat.
- Power Indicator Not On:
- Check the power supply connection and ensure it is functioning.
- Verify that the power input terminals are correctly wired.
11. Garanzija u Appoġġ
Daakro provides the following support for your ZK-502L ampbord tal-lifer:
- 30 Jum Garanzija: Your product is covered by a 30-day warranty from the date of purchase.
- 24 Hours Online Customer Service: For any inquiries or technical assistance, please contact Daakro customer support.
- 100% Customer Satisfaction: Daakro is committed to ensuring your satisfaction with their products.
For further assistance, please visit the official Daakro store or contact their customer service team.
