GODIYMODULES 1969 Class A Power AmpInstrukcja obsługi płyty lifier

Wstęp

This manual provides essential information for the proper setup, operation, and maintenance of your GODIYMODULES 1969 Class A Power Amplifier Board. Please read these instructions carefully before installation and use to ensure optimal performance and longevity of the product.

Produkt ponadview

The GODIYMODULES 1969 Class A Power Amplifier Board is a high-fidelity audio amplifier designed for enthusiasts. It features a robust 2N3055 power amplifier tube and delivers 10-15W of output sound power. This product is supplied as a pair of assembled PCB boards, ready for integration into your audio system.

• Moc Amplifier Tube: 2N3055
• Objętość roboczatage: DC 12V-35V (requires a 9-26V transformer with power greater than 100W)
• Output Sound Power: 10-15W
• Wymiary płyty: 100mm x 78mm x 36mm (Angle aluminum with 2 fixed holes, 53mm apart)
• Default Current Setting: 24V, 1.2A (Higher current increases heat output)
• Polecani prelegenci: 3-5 inch full-range speakers, or 5-8 inch diameter full-range speakers. Speakers with power below 120 watts and below 8 inches are suitable.
• Zawartość zestawu: 2 PCS (1 Pair) 1969 Class A Power AmpDeski lifierskie

Rysunek 1: Kątowy view of a single 1969 Class A Power AmpPłyta główna, showcasing components and heatsink.

Rysunek 2: Widok z góry na dół view z dwóch amplifier boards, highlighting the layout of components and terminals.

Specyfikacje

Organizować coś

Careful attention to wiring and power supply is crucial for the safe and effective operation of the amppłyty lifier.

Wymagania dotyczące zasilania

• Ten amplifier boards require a DC working voltagmiędzy 12 V a 35 V.
• An appropriate transformer (9-26V AC output) with a power rating greater than 100W is necessary for the rectifier board.

Podłączenie głośnika

• Connect 3-5 inch full-range speakers for optimal performance.
• Alternatively, speakers with a diameter of 5-8 inches and a power rating below 120 watts are also suitable.

Schemat okablowania

Refer to the following diagram for proper connection of the amplifier boards to the power supply, rectifier, and speakers.

Figure 3: Detailed wiring diagram showing connections from AC power outlet to transformer, rectifier, amplifier boards, and output to speakers and volume potentiometer.

Instrukcja obsługi

Bieżąca korekta

It is recommended to adjust the quiescent current for optimal Class A operation. The default setting is 1.2A at 24V.

1. Set a universal multimeter to measure current (10-20A range).
2. Disconnect the VCC line z mocy amplifier pokładzie.
3. Connect the red probe of the multimeter to the VCC terminal of the rectifier board.
4. Connect the black probe of the multimeter to the VCC terminal of the power amplifier board. This completes the circuit through the multimeter, allowing current measurement.
5. Adjust the potentiometer labeled KT2 (W202) on the board to achieve the desired current. A setting of 1.2A is recommended.
6. Ważna uwaga: The measurement points for current and midpoint voltage are different. Ensure you change the red probe's connection point when switching between current and midpoint voltagpomiary.

Rysunek 4: Zbliżenie amplifier board, indicating the location of adjustable components like KT2 (W202) for current adjustment.

Konserwacja

To ensure the longevity and stable performance of your amplifier boards, consider the following maintenance guidelines:

• Wentylacja: Zapewnij odpowiedni przepływ powietrza wokół amplifier boards, especially given that Class A amplifiers generate significant heat. Do not obstruct the heatsinks.
• Czystość: Periodically inspect the boards for dust accumulation. Use a soft brush or compressed air to gently remove dust from components and heatsinks.
• Znajomości: Regularly check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent performance or damage.
• Warunki środowiskowe: Uruchom amplifier in a dry environment, away from excessive humidity, direct sunlight, and extreme temperatures.

Rozwiązywanie problemów

Jeśli napotkasz problemy z urządzeniem amplifier boards, review następujące typowe problemy i rozwiązania:

• Brak dźwięku:
  • Verify all power connections are secure and the power supply is providing the correct voltage.
  • Check speaker connections for proper polarity and secure contact.
  • Ensure the audio input source is functioning correctly.
• Zniekształcony dźwięk:
  • Check the input signal level; excessive input can cause distortion.
  • Ensure speakers are correctly matched to the amplifier's output power and impedance.
  • Verify the current adjustment (KT2/W202) is set correctly (e.g., 1.2A).
• Nadmierne ciepło:
  • Klasa A amplifiers naturally run hot. However, ensure adequate ventilation and heatsink clearance.
  • Check the quiescent current setting; a higher current will generate more heat.
• High Frequency Ringing (>12kHz):
  • Some users have reported that adding a 500pF capacitor in parallel with resistor R5 can help mitigate high-frequency ringing. This modification should only be performed by experienced individuals.

Informacje o gwarancji

Specific warranty details for this product are typically provided at the point of purchase or by the seller. Please refer to your purchase documentation or contact your retailer for information regarding warranty coverage and terms.

Wsparcie

For technical assistance, troubleshooting beyond this manual, or inquiries regarding your GODIYMODULES 1969 Class A Power Amplifier Board, please contact the seller or manufacturer directly through the platform where the product was purchased. Provide your order details and a clear description of the issue for efficient support.