1. הקדמה
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 ampליפיער ברעט.
Image 1.1: The ZK-502MT Bluetooth Amplifier Board, including a screwdriver and a DC power adapter.
2. שליסל פֿעיִקייטן
- Dual HiFi Ampליפיער שפּאָן: Utilizes two HiFi amplifier chips with PurePath technology for ultra-high resolution, low distortion, and high-fidelity sound.
- 2.0 קאַנאַל קאַנפיגיעריישאַן: 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.
- ברייט אַפּלאַקיישאַן: Compatible with a wide input voltage range from 9V to 24V DC and suitable for 20-200W, 4-8Ω speakers.
- פולשטענדיק שוץ: Built-in protection mechanisms include over-voltagE, אונטער-וואָלtage, over-temperature, short-circuit, and reverse connection protection.
- טרעבל און באַס קאָנטראָל: Independent knobs for adjusting treble and bass to customize your audio output.
3. וואָס איז אין דער קעסטל
ווען איר עפֿנט דעם פּאַקעט, ביטע קאָנטראָלירט אַז אַלע פֿאָלגנדיקע קאָמפּאָנענטן זענען אַרייַנגערעכנט:
- ZK-502MT Bluetooth Ampליבער באָרד
- Top Plate with Control Labels
- דנאָ פּלאַטע
- שרויפנ - ציער
- DC מאַכט אַדאַפּטער קאַנעקטאָר
- היץ סינק
- Mounting Hardware (Screws, Standoffs)
- Control Knobs (Volume, Treble, Bass)
Image 3.1: All components included in the ZK-502MT package.
4. סעטאַפּ גייד
Follow these steps to properly set up your ZK-502MT Bluetooth Ampליפיער באָרד.
4.1 קאָמפּאָנענט פֿאַרזאַמלונג
- Attach Heat Sink: Secure the provided heat sink to the main amplifier chip on the board. Ensure good contact for optimal heat dissipation.
- צוזאַמענשטעלן 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.
- Install Knobs: Place the three control knobs onto their respective shafts for Volume, Bass, and Treble.
Image 4.1: Proper installation of the heat sink and control knobs.
4.2 רעדנער קאַנעקשאַן
פאַרבינדן דיין ספּיקערז צו די 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.
די amplifier board is suitable for 20-200W, 4-8Ω speakers.
Image 4.2: Connection points for speakers, power, and AUX input.
4.3 מאַכט קאַנעקשאַן
Connect a DC power supply (9V-24V) to the power input terminal. The board includes a DC power adapter connector for convenience.
- פאַרזיכערן דיין מאַכט צושטעלן וואָלtage is within the 9V to 24V DC range.
- Connect the power supply to the DC-IN port on the ampליפיער ברעט.
- The board has built-in reverse connection protection, but always double-check polarity before powering on.
Image 4.3: Detail of the power input and speaker terminals.
5. אַפּערייטינג ינסטרוקטיאָנס
This section details how to operate your ZK-502MT ampליפיער ברעט.
5.1 מאַכט אויף / אַוועק
- 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
די amplifier board features three rotary knobs for audio adjustment:
- באַנד: Rotate the "VOLUME" knob clockwise to increase volume and counter-clockwise to decrease.
- באַס: Rotate the "BASS" knob clockwise to increase bass frequencies and counter-clockwise to decrease.
- טרעבאַל: Rotate the "TREBLE" knob clockwise to increase treble frequencies and counter-clockwise to decrease.
5.3 אַודיאָ אַרייַנגאַנג מאָדעס
The ZK-502MT supports two audio input modes: Bluetooth and AUX.
בילד 5.1: די amplifier board supports both Bluetooth and AUX input modes.
5.3.1 בלועטאָאָטה מאָדע
- פאַרזיכערן די amplifier board is powered on.
- 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.
Image 5.2: Bluetooth connectivity range of the ZK-502MT.
5.3.2 AUX אינפוט מאָדע
- Connect a 3.5mm audio cable from your audio source device (e.g., MP3 player, TV, laptop) to the "AUX-IN" port on the ampליפיער ברעט.
- די amplifier board will automatically switch to AUX input mode when a cable is detected.
- Begin playing audio from your source device.
6. טעכניש ספּעסאַפאַקיישאַנז
| שטריך | באַשרייַבונג |
|---|---|
| מאָדעל נומער | ZK-502MT |
| סאָרט | Daakro |
| נומער פון טשאַנאַלז | 2.0 (סטערעאָ) |
| רעזולטאַט מאַכט | 50 וואט + 50 וואט (סך־הכּל 100 וואט) |
| אַרייַנשרייַב וואָלtagE ראַנגע | גלייכשטראָם 9V - 24V |
| רעדנער ימפּידאַנס | 4-8Ω |
| Speaker Power Compatibility | 20 וואט - 200 וואט |
| בלועטאָאָטה ווערסיע | 5.0 |
| אַודיאָ ינפּוץ | בלועטוט, אוקס (3.5 מ״מ) |
| דימענסיעס (L X W X H) | 3.54 X 2.36 X 0.83 אינטשעס (9 X 6 X 2.1 סענטימעטער) |
| פּונקט וואָג | 4.2 אונסעס (119 גראַמז) |
Image 6.1: Physical dimensions of the ZK-502MT ampליפיער ברעט.
Image 6.2: Power Output Comparison Table for different input voltages and speaker impedances.
7. טראָובלעשאָאָטינג
| פּראָבלעם | מעגלעך סיבה | לייזונג |
|---|---|---|
| קיין געזונט רעזולטאַט |
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| בלועטאָאָטה איז נישט קאַנעקטינג |
|
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| געזונט דיסטאָרשאַן אָדער נעבעך קוואַליטעט |
|
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| Amplifier board gets hot |
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8. וישאַלט
To ensure the longevity and optimal performance of your ZK-502MT amplifier board, follow these simple maintenance guidelines:
- רייניקונג: 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.
- באַזייַטיקונג פון שטויב: Periodically use compressed air to remove dust from the heat sink and other components to maintain proper cooling.
- סטאָרידזש: אויב סטאָרינג די 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.
- האַנדלינג: Always handle the board by its edges to avoid touching sensitive components or causing static discharge.
9. וואָראַנטי און שטיצן
Daakro is committed to providing high-quality products and excellent customer service.
- וואָראַנטי: דער פּראָדוקט קומט מיט אַ 36-חודש וואָראַנטי פֿון דעם קויפֿדאַטום, וואָס באַדעקט פֿאַבריקאַציע־דעפֿעקטן. ביטע באַהאַלטן אייער קויפֿבאַווײַז פֿאַר וואָראַנטי־קליימז.
- קונה סערוויס: For any questions, technical assistance, or warranty inquiries, please contact Daakro customer support.
- אָנליין שטיצן: Visit the official Daakro Store on Amazon for more information and support resources: Daakro Amazon Store.
Image 9.1: Daakro After-Sales Support information.
