Daakro ZK-502MT Bluetooth AmpManwal għall-Utent tal-Bord aktar ħaj

1. Introduzzjoni

The Daakro ZK-502MT Bluetooth Amplifier Board is a versatile 2.0 channel audio amplifier designed for DIY home audio projects. It features dual HiFi amplifier chips, providing clear and high-fidelity sound. With support for both Bluetooth 5.0 and AUX inputs, it offers flexible connectivity options for various audio sources. This manual provides detailed instructions for setup, operation, and maintenance of your ZK-502MT ampbord aktar ħaj.

Daakro ZK-502MT Bluetooth Amplifier Board with screwdriver and power adapter

Image 1.1: The ZK-502MT Bluetooth Amplifier Board, including a screwdriver and a DC power adapter.

2. Karatteristiċi ewlenin

Dual HiFi AmpĊippa lifier: Utilizes two HiFi amplifier chips with PurePath technology for ultra-high resolution, low distortion, and high-fidelity sound.
2.0 Konfigurazzjoni tal-Kanal: Supports left and right channel output, each providing 50W output power 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.
Applikazzjoni wiesgħa: Compatible with a wide input voltage range from 9V to 24V DC and suitable for 20-200W, 4-8Ω speakers.
Protezzjoni Komprensiva: Built-in protection mechanisms include over-voltage, taħt il-voltage, over-temperature, short-circuit, and reverse connection protection.
Kontroll tat-Treble u l-Bass: Independent knobs for adjusting treble and bass to customize your audio output.

3. X'hemm fil-Kaxxa

Malli tiftaħ il-pakkett, jekk jogħġbok ivverifika li l-komponenti kollha li ġejjin huma inklużi:

ZK-502MT Bluetooth AmpBord aktar ħaj
Top Plate with Control Labels
Pjanċa tal-qiegħ
Tornavit
Konnettur tal-Adapter tal-Enerġija DC
Sink tas-Sħana
Mounting Hardware (Screws, Standoffs)
Control Knobs (Volume, Treble, Bass)

Contents of the ZK-502MT amplifier board box, including the board, plates, screwdriver, power connector, heat sink, and knobs.

Image 3.1: All components included in the ZK-502MT package.

4. Gwida ta' Setup

Follow these steps to properly set up your ZK-502MT Bluetooth AmpBord lifier.

4.1 Assemblaġġ tal-Komponenti

Attach Heat Sink: Secure the provided heat sink to the main amplifier chip on the board. Ensure good contact for optimal heat dissipation.
Assemble Casing: Use the provided standoffs and screws to attach the top and bottom plates to the amplifier board. The top plate has labels for controls and ports.
Installa l-Pumi: Place the three control knobs onto their respective shafts for Volume, Bass, and Treble.

Close-up of the heat sink installed on the ampbord aktar ħaj.

Close-up of the control knobs on the ampbord aktar ħaj.

Image 4.1: Proper installation of the heat sink and control knobs.

4.2 Konnessjoni tal-Ispeaker

Qabbad il-kelliema tiegħek mal- amplifier board using the screw terminals. The board supports 2.0 channel output (Left and Right). Ensure correct polarity (+ and -) for each speaker.

Connect the positive (+) terminal of your left speaker to the 'L+' terminal on the board.
Connect the negative (-) terminal of your left speaker to the 'L-' terminal on the board.
Connect the positive (+) terminal of your right speaker to the 'R+' terminal on the board.
Connect the negative (-) terminal of your right speaker to the 'R-' terminal on the board.

Il- amplifier board is suitable for 20-200W, 4-8Ω speakers.

Diagram showing speaker and input connections on the ampbord aktar ħaj.

Image 4.2: Connection points for speakers, power, and AUX input.

4.3 Konnessjoni tal-Enerġija

Connect a DC power supply (9V-24V) to the power input terminal. The board includes a DC power adapter connector for convenience.

Żgura l-provvista tal-enerġija tiegħek voltage is within the 9V to 24V DC range.
Connect the power supply to the DC-IN port on the ampbord aktar ħaj.
The board has built-in reverse connection protection, but always double-check polarity before powering on.

Close-up of the power input and speaker terminals on the ampbord aktar ħaj.

Image 4.3: Detail of the power input and speaker terminals.

5. Istruzzjonijiet Operattivi

This section details how to operate your ZK-502MT ampbord aktar ħaj.

5.1 Power On/Off

To power on, ensure all connections are secure, then connect the power supply to a power outlet. The power indicator LED will illuminate.
To power off, disconnect the power supply from the outlet.

5.2 Volume, Treble, and Bass Control

Il- amplifier board features three rotary knobs for audio adjustment:

Volum: Rotate the "VOLUME" knob clockwise to increase volume and counter-clockwise to decrease.
Bass: Rotate the "BASS" knob clockwise to increase bass frequencies and counter-clockwise to decrease.
Treble: Rotate the "TREBLE" knob clockwise to increase treble frequencies and counter-clockwise to decrease.

5.3 Modi ta' Input tal-Awdjo

The ZK-502MT supports two audio input modes: Bluetooth and AUX.

Diagram illustrating multiple audio input modes: Bluetooth and AUX, with compatible devices like mobile phones, tablets, and computers.

Immaġni 5.1: L- amplifier board supports both Bluetooth and AUX input modes.

5.3.1 Modalità Bluetooth

Tiżgura l- ampIl-bord tal-lifer huwa mixgħul.
The board will automatically enter Bluetooth pairing mode. A voice prompt or indicator light may confirm this.
On your audio source device (e.g., smartphone, tablet, computer), enable Bluetooth and search for available devices.
Select "ZK-502MT" from the list of devices to pair. No password is required.
Once paired, a confirmation sound will be heard, and you can begin playing audio wirelessly.

A smartphone connected via Bluetooth to the ZK-502MT amplifier board, showing a range of up to 16.4 feet.

Image 5.2: Bluetooth connectivity range of the ZK-502MT.

5.3.2 Modalità tad-Dħul AUX

Connect a 3.5mm audio cable from your audio source device (e.g., MP3 player, TV, laptop) to the "AUX-IN" port on the ampbord aktar ħaj.
Il- amplifier board will automatically switch to AUX input mode when a cable is detected.
Begin playing audio from your source device.

6. Speċifikazzjonijiet Tekniċi

Karatteristika	Speċifikazzjoni
Numru tal-Mudell	ZK-502MT
Brand	Daakro
Numru ta 'Kanali	2.0 (Stereo)
Qawwa tal-Ħruġ	50W + 50W (Total 100W)
Input Voltage Firxa	DC 9V - 24V
Impedenza tal-Ispeaker	4-8Ω
Speaker Power Compatibility	20W - 200W
Verżjoni Bluetooth	5.0
Inputs tal-awdjo	Bluetooth, AUX (3.5mm)
Dimensjonijiet (L x W x H)	3.54 x 2.36 x 0.83 pulzieri (9 x 6 x 2.1 ċm)
Piż tal-oġġett	4.2 uqija (119 gramma)

Diagram showing the compact dimensions of the ZK-502MT ampbord aktar ħaj.

Image 6.1: Physical dimensions of the ZK-502MT ampbord aktar ħaj.

Table comparing power output based on input voltage and speaker impedance.

Image 6.2: Power Output Comparison Table for different input voltages and speaker impedances.

7 Issolvi l-problemi

Problema	Kawża Possibbli	Soluzzjoni
Ebda output tal-ħoss	Incorrect speaker wiring. Low volume setting. Modalità ta' input mhux korretta magħżula. Sors jew kejbil tal-awdjo difettuż. Kwistjoni tal-provvista tal-enerġija.	Check speaker polarity (+/-) and ensure secure connections. Increase the volume knob on the amplifier and your audio source. Ensure the correct input (Bluetooth/AUX) is active. Ittestja b'sors awdjo jew kejbil differenti. Verify power supply is connected and within 9-24V DC range.
Il-Bluetooth mhux qed jgħaqqad	AmpIl-lifer mhux fil-modalità ta' tqabbil. Apparat wisq 'il bogħod minn ampaktar ħaj. Interferenza tal-Bluetooth. Kwistjoni ta' konnessjoni preċedenti.	Tiżgura amplifier is powered on and ready for pairing. Mexxi t-tagħmir tiegħek eqreb lejn il- amplifier (within 16.4 feet/5 meters). Itfi apparati oħra tal-Bluetooth fil-qrib. Forget "ZK-502MT" on your device's Bluetooth settings and try pairing again.
Distorsjoni tal-ħoss jew kwalità fqira	Volum għoli wisq. Incompatible speakers. Provvista ta 'enerġija insuffiċjenti. Kwalità fqira tas-sors tal-awdjo.	Reduce volume on both amplifier u sors awdjo. Ensure speakers are 4-8Ω and within 20-200W power rating. Use a power supply with adequate current (e.g., 12V 5A or 24V 3A for higher power output). Ittestja b'sors awdjo ta' kwalità għolja.
Amplifier board gets hot	High volume or prolonged use. Ventilazzjoni inadegwata. Heat sink not properly installed.	This is normal under heavy load, but ensure it's not excessively hot. Ensure the board has sufficient airflow. Verify the heat sink is securely attached to the chip.

8. Manutenzjoni

To ensure the longevity and optimal performance of your ZK-502MT amplifier board, follow these simple maintenance guidelines:

Tindif: Gently wipe the surface of the board with a soft, dry cloth. Do not use liquid cleaners or solvents, as they may damage the electronic components.
Tneħħija tat-Trab: Periodically use compressed air to remove dust from the heat sink and other components to maintain proper cooling.
Ħażna: Jekk taħżen il amplifier board for an extended period, disconnect it from power and store it in a cool, dry place away from direct sunlight and excessive humidity.
Immaniġġjar: Always handle the board by its edges to avoid touching sensitive components or causing static discharge.

9. Garanzija u Appoġġ

Daakro is committed to providing high-quality products and excellent customer service.

Garanzija: Dan il-prodott jiġi ma 'a 36-il xahar garanzija mid-data tax-xiri, li tkopri difetti fil-manifattura. Jekk jogħġbok żomm il-prova tax-xiri tiegħek għal talbiet ta' garanzija.
Servizz tal-Klijent: For any questions, technical assistance, or warranty inquiries, please contact Daakro customer support.
Appoġġ onlajn: Visit the official Daakro Store on Amazon for more information and support resources: Daakro Amazon Store.

Image indicating 36 months warranty, 24 hours online customer service, and 100% customer satisfaction.

Image 9.1: Daakro After-Sales Support information.

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Daakro ZK-502MT