1. Pendahuluan
This manual provides detailed instructions for the installation, operation, and maintenance of the CUQI ZK-HT21 Bluetooth Amplifier Board. This 2.1 channel amplifier module is designed for DIY speaker projects, offering high-fidelity audio output with versatile input options and robust protection features.
2. Fitur Produk
- Three Audio Input Methods: Supports AUX (3.5mm), USB (U-Disk), and Bluetooth 5.0 connections for broad compatibility with various audio devices. The Bluetooth connection range is approximately 15 meters (49 feet). Note: When using AUX mode, ensure the module's Bluetooth connection is disconnected.
- Triple-Channel Audio Experience: Features a built-in DA7498E chip, delivering 160W for left and right channels and 220W for the subwoofer, providing clear and powerful sound.
- Pembuangan Panas yang Efektif: Incorporates a semi-open structure with a silent fan to efficiently reduce operating temperature and extend the amplifier board's lifespan.
- Multi-protection: Built-in safeguards against reverse polarity, short circuits, overheating, and overcurrent ensure safe operation.
- Kompatibilitas Luas: Supports DC 15–36V power supplies (under-voltage protection triggers below 9V, also supports 12V). Compatible with 30–200W, 4–8Ω speakers.
3. Isi Paket
Verifikasi bahwa semua item yang tercantum di bawah ini disertakan dalam paket Anda:
Gambar 3.1: Isi Paket. This image displays the ZK-HT21 amplifier board, top and bottom cover plates, various screws and copper columns for assembly, five button caps, a power terminal, and a screwdriver.
- ZK-HT21 Bluetooth Amplifier Board x1
- Top Cover Plate x1
- Lower Cover Plate x1
- M2x18 Copper Column x4
- M2x5+4 Copper Column x4
- Sekrup M2x4mm x8
- Button Cap x5
- Power Terminal x1
- Obeng x1
4. Produk Lebihview
Familiarize yourself with the components and controls of the ZK-HT21 amppapan pengangkat.
Figure 4.1: Component Layout. This diagram identifies the power input, speaker terminals, audio inputs (Bluetooth, AUX, USB), control knobs (Subwoofer Frequency, Bass Volume, Left/Right Channel Treble, Left/Right Channel Bass, Master Volume/Switch), and internal components like the fan and capacitors.
- Masukan Daya: 5.5x2.1DC Header and 2P Terminal for DC 15-36V power supply.
- Keluaran Pembicara: Terminals for Left, Right, and Subwoofer channels.
- Input Audio: Bluetooth, AUX (3.5mm), USB (U-Disk).
- Subwoofer Freq (Frequency): Adjusts the cutoff frequency for the subwoofer.
- Volume Subwoofer: Controls the output level of the subwoofer.
- Treble Saluran Kiri dan Kanan: Adjusts high frequencies for stereo channels.
- Bass Saluran Kiri dan Kanan: Adjusts low frequencies for stereo channels.
- Master Volume/Switch: Controls overall volume. Press the dial button for short press (pause/play) or long press (switch mode: USB/Bluetooth/AUX).
- Antarmuka Masukan USB: For connecting a U-Disk to play audio files.
- Basis Antena: For Bluetooth antenna (can be directly welded or use the antenna base).
5. Pengaturan dan Instalasi
Follow these steps to assemble and connect your amppapan pengangkat.
Figure 5.1: Assembly Diagram. This image illustrates the assembly process, showing the PCB board, copper columns, top and bottom cover plates, screws, and button caps.
- Merakit Casing:
- Attach the M2x5+4 copper columns to the PCB board using the M2x4mm screws.
- Place the lower cover plate onto these copper columns.
- Attach the M2x18 copper columns to the PCB board.
- Place the top cover plate onto the M2x18 copper columns and secure with the remaining M2x4mm screws.
- Install the five button caps onto the control shafts.
- Hubungkan Speaker: Connect your 30-200W, 4-8Ω speakers to the designated Left, Right, and Subwoofer output terminals on the amplifier board. Ensure correct polarity (+/-).
- Hubungkan Daya: Connect a DC 15-36V power supply to the 5.5x2.1DC header or the 2P terminal. Ensure correct polarity.
- Hubungkan Sumber Audio: Pilih salah satu metode input berikut:
- Bluetooth dapat digunakan untuk berbagai keperluan, seperti: Power on the board. The Bluetooth indicator will flash. Pencarian untuk "ZK-HT21" on your device and pair.
- AUX: Connect your audio device (phone, PC, MP3, TV) to the 3.5mm AUX input. Ensure Bluetooth is disconnected.
- Kabel USB: Insert a U-Disk with audio files into the USB input interface.
6. Petunjuk Pengoperasian
Setelah terhubung, operasikan amplifier using the following controls:
Figure 6.1: Audio Input Methods. This image visually represents connecting audio sources via Bluetooth, AUX, or USB to the amplifier board for playback through speakers.
- Daya Hidup/Mati: Itu amplifier powers on automatically when connected to a suitable power supply.
- Master Volume/Switch Knob:
- Rotate to adjust the overall output volume.
- Tekan Singkat: In Bluetooth mode, this acts as Play/Pause. In AUX mode, it mutes/unmutes the audio.
- Tekan lama: Switches between input modes (USB, Bluetooth, AUX).
- Subwoofer Freq Knob: Adjusts the low-pass filter frequency for the subwoofer output. Turn clockwise for higher cutoff, counter-clockwise for lower.
- Subwoofer Volume Knob: Adjusts the volume level of the subwoofer independently.
- Left and Right Channel Treble Knob: Mengatur respons frekuensi tinggi untuk saluran stereo utama.
- Left and Right Channel Bass Knob: Mengatur respons frekuensi rendah untuk saluran stereo utama.
7. Pemeliharaan
To ensure optimal performance and longevity of your ZK-HT21 amppapan penguat:
- Jaga agar papan tetap bersih dan bebas dari debu. Gunakan kain lembut dan kering untuk membersihkannya.
- Pastikan ventilasi yang memadai di sekitar amplifier, especially around the fan, to facilitate proper heat dissipation.
- Avoid exposing the board to moisture, extreme temperatures, or direct sunlight.
- Do not attempt to modify the circuit board, as this may void any potential warranty and could cause damage.
8. Penyelesaian masalah
Jika Anda mengalami masalah, lihat masalah umum dan solusi berikut:
| Masalah | Kemungkinan Penyebab | Larutan |
|---|---|---|
| Tidak ada keluaran suara. |
|
|
| Suara terdistorsi. |
|
|
| Masalah koneksi Bluetooth. |
|
|
| Amplifier feels hot. |
|
|
Figure 8.1: Protection Features. This image highlights the various built-in protections of the amplifier board, including undervoltage, overheat, overcurrent, short-circuit, and reverse connection protection.
9. Spesifikasi
| Parameter | Nilai |
|---|---|
| Nomor Model | ZK-HT21 (BAB-2.1T) |
| Merek | CUQI |
| Saluran | 2.1 (Kiri, Kanan, Subwoofer) |
| Daya Keluaran | 160W (Left) + 160W (Right) + 220W (Subwoofer) |
| Catu Daya | DC 15-36V |
| Impedansi Speaker | 4-8Ω |
| Daya Speaker | 30-200W |
| Versi Bluetooth | 5.0 |
| Jangkauan Bluetooth | Hingga 15 meter (49 kaki) |
| Audio Input Methods | Bluetooth, AUX (3.5mm), USB (U-Disk) |
| Dimensi Produk (P x L x T) | 126mm x 145mm x 28mm (4.96 x 5.71 x 1.1 inci) |
| Berat Barang | Sekitar 13 ons |
Gambar 9.1: Dimensi Produk. This image provides a visual representation of the amplifier board's physical dimensions.
10. Informasi Keselamatan
Harap baca dan ikuti panduan keselamatan ini untuk mencegah cedera atau kerusakan pada produk:
- Use only the specified DC 15-36V power supply. Using an incorrect voltage or AC power can damage the board.
- Ensure correct polarity when connecting the power supply and speakers.
- Jangan mengoperasikan amppengangkat di basah atau damp kondisi.
- Avoid touching the circuit board components while the unit is powered on.
- Jauhkan dari jangkauan anak-anak.
- Itu amplifier board includes built-in protections against reverse polarity, short circuits, overheating, and overcurrent. However, always exercise caution during installation and operation.
11. Garansi dan Dukungan
For warranty information or technical support, please contact the seller or manufacturer directly. Retain your purchase receipt for any warranty claims.