పరిచయం
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.
ఉత్పత్తి ముగిసిందిview
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.
- శక్తి Amplifier Tube: 2N3055
- వర్కింగ్ వాల్యూమ్tage: DC 12V-35V (requires a 9-26V transformer with power greater than 100W)
- Output Sound Power: 10-15W
- బోర్డు కొలతలు: 100mm x 78mm x 36mm (Angle aluminum with 2 fixed holes, 53mm apart)
- Default Current Setting: 24V, 1.2A (Higher current increases heat output)
- సిఫార్సు చేయబడిన స్పీకర్లు: 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.
- చేర్చబడిన భాగాలు: 2 PCS (1 Pair) 1969 Class A Power Ampలైఫైయర్ బోర్డులు
చిత్రం 1: కోణీయ view of a single 1969 Class A Power Ampలైఫైయర్ బోర్డు, షోక్asing components and heatsink.
చిత్రం 2: పై నుండి క్రిందికి view రెండు amplifier boards, highlighting the layout of components and terminals.
స్పెసిఫికేషన్లు
| తయారీదారు | గోడిమోడ్యూల్స్ |
| మోడల్ సంఖ్య | 1969 Class A Power Ampజీవితకర్త బోర్డు |
| గరిష్ట సరఫరా వాల్యూమ్tage | 35 వోల్ట్లు (DC) |
| మౌంటు రకం | త్రూ-హోల్ మౌంట్ |
| ఛానెల్ల సంఖ్య | 2 |
| అవుట్పుట్ పవర్ | 15 వాట్స్ |
| చేర్చబడిన భాగాలు | 2pcs (1 Pair) |
సెటప్
Careful attention to wiring and power supply is crucial for the safe and effective operation of the ampలిఫైయర్ బోర్డులు.
విద్యుత్ సరఫరా అవసరాలు
- ది amplifier boards require a DC working voltagఇ 12V మరియు 35V మధ్య.
- An appropriate transformer (9-26V AC output) with a power rating greater than 100W is necessary for the rectifier board.
స్పీకర్ కనెక్షన్
- 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.
వైరింగ్ రేఖాచిత్రం
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.
ఆపరేటింగ్ సూచనలు
ప్రస్తుత సర్దుబాటు
It is recommended to adjust the quiescent current for optimal Class A operation. The default setting is 1.2A at 24V.
- Set a universal multimeter to measure current (10-20A range).
- Disconnect the VCC line శక్తి నుండి ampజీవితకాల బోర్డు.
- Connect the red probe of the multimeter to the VCC terminal of the rectifier board.
- 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.
- Adjust the potentiometer labeled KT2 (W202) on the board to achieve the desired current. A setting of 1.2A is recommended.
- ముఖ్యమైన గమనిక: 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 voltagఇ కొలతలు.
చిత్రం 4: amplifier board, indicating the location of adjustable components like KT2 (W202) for current adjustment.
నిర్వహణ
To ensure the longevity and stable performance of your amplifier boards, consider the following maintenance guidelines:
- వెంటిలేషన్: చుట్టూ తగినంత గాలి ప్రసరణ ఉండేలా చూసుకోండి amplifier boards, especially given that Class A amplifiers generate significant heat. Do not obstruct the heatsinks.
- పరిశుభ్రత: Periodically inspect the boards for dust accumulation. Use a soft brush or compressed air to gently remove dust from components and heatsinks.
- కనెక్షన్లు: Regularly check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent performance or damage.
- పర్యావరణ పరిస్థితులు: ఆపరేట్ చేయండి amplifier in a dry environment, away from excessive humidity, direct sunlight, and extreme temperatures.
ట్రబుల్షూటింగ్
మీరు మీతో సమస్యలను ఎదుర్కొంటే amplifier boards, review కింది సాధారణ సమస్యలు మరియు పరిష్కారాలు:
- సౌండ్ అవుట్పుట్ లేదు:
- 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.
- వక్రీకరించిన ధ్వని:
- Check the input signal level; excessive input can cause distortion.
- స్పీకర్లు సరిగ్గా సరిపోలాయని నిర్ధారించుకోండి amplifier's output power and impedance.
- Verify the current adjustment (KT2/W202) is set correctly (e.g., 1.2A).
- అధిక వేడి:
- క్లాస్ ఎ 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.
వారంటీ సమాచారం
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.
మద్దతు
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.