1. Inngangur
Thank you for choosing the Daakro ZK-302T Bluetooth 5.3 Amplifier Board. This compact 2.0 channel audio amplifier is designed for DIY wireless speaker projects, offering 30W+30W output, precise treble and bass control, and versatile input options including Bluetooth 5.3, USB, and AUX. This manual will guide you through the installation, operation, and maintenance of your amplifier board to ensure optimal performance and longevity.
Mynd 1: Daakro ZK-302T Bluetooth 5.3 Amplifier Board. This image shows the compact amplifier board with its three control knobs for treble, bass, and volume, along with the various input and output terminals.
2. Öryggisupplýsingar
Vinsamlegast lesið og skiljið allar öryggisleiðbeiningar áður en þessi vara er notuð. Ef þessum leiðbeiningum er ekki fylgt getur það valdið raflosti, eldsvoða eða öðrum hættum.
- Gakktu úr skugga um að aflgjafinn voltage is within the specified range of DC 9-24V.
- Ekki afhjúpa ampLímarplata fyrir raka, vatni eða miklum hita.
- Forðastu að skammhlaupa úttakstengurnar.
- Aftengdu rafmagnið áður en nokkrar tengingar eða aftengingar eru gerðar.
- Geymið þar sem börn ná ekki til.
- Do not attempt to disassemble or modify the board. Refer all servicing to qualified personnel.
- Gakktu úr skugga um rétta loftræstingu til að koma í veg fyrir ofhitnun.
- Þessi vara er eingöngu hönnuð til notkunar innanhúss.
3. Uppsetning og tengingar
Follow these steps to correctly set up your Daakro ZK-302T amplyftaraborð.
3.1 Innihald pakka
Gakktu úr skugga um að allir hlutir séu til staðar í pakkanum þínum:
- Daakro ZK-302T Bluetooth Amplíflegri stjórn
- Power adapter cable (if included)
- Skrúfjárn
- Mounting hardware (standoffs, screws)
- Heat sink (if not pre-installed)
Mynd 2: What's in the Box. This image displays the amplifier board along with included accessories such as a screwdriver, power adapter cable, and mounting hardware.
3.2 Auðkenning íhluta
Familiarize yourself with the various ports and controls on the amplyftaraborð.
Mynd 3: Component Identification. This diagram highlights key components including the power input, USB input, AUX input, left and right channel outputs, and the treble, bass, and volume control knobs.
- Power Input (DC 9-24V): Connect your DC power supply here.
- USB inntak: For audio input from a USB source.
- AUX Input (3.5mm Jack): For wired audio input from devices like phones or PCs.
- Left Channel Output (L+ L-): Connect to your left speaker.
- Right Channel Output (R+ R-): Connect to your right speaker.
- Treble Control: Rotate to adjust high-frequency audio.
- Bassstýring: Rotate to adjust low-frequency audio.
- Hljóðstyrkur: Rotate to adjust overall audio output level.
3.3 Hátalarar tengdir
- Tryggðu að amplifier board is powered off.
- Connect your speakers (4-8Ω, 20-200W) to the corresponding Left (L+ L-) and Right (R+ R-) channel output terminals. Ensure correct polarity (+ to + and - to -).
- Tighten the terminal screws to secure the speaker wires.
3.4 Rafmagnstenging
- Connect a DC power supply (9-24V) to the power input terminal.
- Ensure the power supply provides sufficient current for your speakers. Refer to the "Power Output Comparison Table" in Section 4.3 for optimal power matching.
4. Notkunarleiðbeiningar
4.1 Powering On and Input Selection
- Once speakers and power are connected, turn on the power supply. The amplifier board will automatically enter Bluetooth pairing mode.
- The board supports three audio input modes: Bluetooth, USB, and AUX. The board will automatically switch to the last active input or prioritize a newly connected input.
Mynd 4: Multiple Audio Input Modes. This image illustrates the three input options: Bluetooth, 3.5mm AUX, and USB, and shows compatible devices like mobile phones, tablets, and computers.
4.2 Bluetooth pörun
- Tryggðu að amplifier board is powered on and in Bluetooth mode.
- Virkjaðu Bluetooth í snjalltækinu þínu (síma, spjaldtölvu o.s.frv.) og leitaðu að tiltækum tækjum.
- Select "ZK-302T" from the list of devices to pair. No password is required.
- Once paired, you will hear a confirmation tone, and the Bluetooth indicator light (if present) will stabilize.
- The Bluetooth connection range is approximately 16.4 feet (5 meters).
Mynd 5: Bluetooth Connection. This image shows a smartphone connected via Bluetooth to the ZK-302T amplifier board, indicating a wireless range of up to 16.4 feet (5 meters).
4.3 Að stilla hljóð
- Hljóðstyrkur: Rotate the VOLUME knob to increase or decrease the overall sound level.
- Treble Control: Rotate the TREBLE knob to adjust the high-frequency response. Turn clockwise for more treble, counter-clockwise for less.
- Bassstýring: Rotate the BASS knob to adjust the low-frequency response. Turn clockwise for more bass, counter-clockwise for less.
4.4 Power Output Considerations
Optimal audio output requires a suitable power supply and speaker impedance. The table below illustrates the approximate output power based on input voltage og hátalaraimpedans.
Mynd 6: Power Output Comparison Table. This table details the R&L channel output power at 1KHz for various input voltages (12V, 15V, 19V, 24V) and speaker impedances (4Ω, 8Ω).
Important Note: There must be enough voltage and current input to achieve the rated power output. Higher voltage and current generally result in higher power. For the same conditions, a smaller speaker impedance will yield greater power.
5. Viðhald
- Þrif: Notaðu mjúkan, þurran klút til að þrífa ampEkki nota fljótandi hreinsiefni eða leysiefni.
- Geymsla: Geymið tækið á köldum, þurrum stað fjarri beinu sólarljósi og miklum hita.
- Loftræsting: Ensure the board has adequate airflow to prevent overheating, especially during prolonged use at high volumes.
- Tengingar: Athugið reglulega hvort allar tengingar séu þéttar og gætið þess að engar vírar séu slitnar eða berar.
6. Bilanagreining
If you encounter issues with your Daakro ZK-302T amplifier board, refer to the following common problems and solutions.
| Vandamál | Möguleg orsök | Lausn |
|---|---|---|
| Ekkert hljóðúttak |
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| Bjagað hljóð |
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| Vandamál með Bluetooth-tengingu |
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| Ofhitnun |
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7. Tæknilýsing
| Eiginleiki | Smáatriði |
|---|---|
| Gerðarnúmer | ZK-302T |
| Output Power | 30W + 30W (2.0 Channel) |
| Amplifier Chip | Dual TPA3110D2 HiFi Chip |
| Bluetooth útgáfa | 5.3 |
| Inntak Voltage | DC 9-24V |
| Hljóðinntak | Bluetooth, USB, AUX (3.5 mm) |
| Viðnám hátalara | 4-8Ω |
| Recommended Speaker Power | 20-200W |
| Vörumál (L x B x H) | 4.33 x 2.76 x 1.97 tommur |
| Þyngd | 3.53 aura |
| Verndarkerfi | Yfir-voltage, Undir-bindtage, Over-temperature, Short-circuit, Reverse connection |
8. Ábyrgð og stuðningur
The Daakro ZK-302T Bluetooth 5.3 Amplifier Board comes with a 30 daga skila-/skiptastefna from the date of purchase. This warranty covers manufacturing defects and issues arising from normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
For technical support, warranty claims, or any questions regarding your product, please contact Daakro customer service through the platform where you purchased the product. Please have your purchase details and model number (ZK-302T) ready.
