1. Introduction
The Jesverty SPS-1330 is a compact and efficient universal bench power supply designed to convert AC power to a stable DC output. It is suitable for a wide range of applications, including powering mobile phones, civil radios, scanners, and amateur radios. Its robust construction and integrated safety features ensure reliable performance for home lab and benchtop use.
Image 1.1: The Jesverty SPS-1330 Desktop Bench Power Supply.
2. Safety Instructions
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Indoor Use Only: This power supply is designed for indoor use in dry environments. Do not expose it to rain or moisture.
- Proper Ventilation: Ensure adequate ventilation around the unit. Do not block ventilation openings.
- Power Source: Connect the power supply only to a grounded AC outlet with the correct voltage (230V AC).
- Avoid Overload: Do not exceed the maximum output current of 30A. Overloading can damage the unit and connected devices.
- Secure Connections: Ensure all connections to the output terminals are secure and properly insulated to prevent short circuits.
- Servicing: Do not attempt to open or service the unit yourself. Refer all servicing to qualified personnel.
- Integrated Protections: The unit features built-in over-voltage, over-current, and short-circuit protection for enhanced safety.
3. Package Contents
Verify that all items are present in the package:
- 1x Jesverty SPS-1330 Power Supply
- 1x AC Power Cord
- 1x Output Charging Cable
- 1x User Manual
4. Product Overview
Familiarize yourself with the components of your Jesverty SPS-1330 power supply.
Front Panel
Image 4.1: Front panel of the SPS-1330.
- Power Switch (ON/OFF): Toggles the main power to the unit.
- DC Output ON Indicator: Illuminates when DC output is active.
- Negative Output Terminal (-): Black screw terminal for negative DC connection.
- Positive Output Terminal (+): Red screw terminal for positive DC connection.
Rear Panel
Image 4.2: Rear panel with cooling fan, fuse, and AC power input.
- Built-in Cooling Fan: Automatically activates to prevent overheating.
- Fuse Holder: Contains the protective fuse.
- AC Power Input: Connector for the AC power cord.
Dimensions
Image 4.3: Dimensions of the SPS-1330 unit.
5. Setup
Follow these steps to set up your power supply:
- Placement: Place the power supply on a stable, flat surface with adequate clearance for ventilation. Ensure it is away from heat sources and direct sunlight.
- Connect AC Power: Insert the provided AC power cord into the AC Power Input on the rear panel of the power supply. Plug the other end into a grounded 230V AC wall outlet.
- Connect Device: Using the output charging cable or appropriate wires, connect your device to the output terminals. Connect the positive (+) terminal of your device to the red (+) terminal on the power supply, and the negative (-) terminal of your device to the black (-) terminal on the power supply. Ensure connections are tight and secure.
6. Operating Instructions
Operating the Jesverty SPS-1330 is straightforward:
- Power On: After connecting your device, flip the Power Switch to the 'ON' position. The DC Output ON indicator light will illuminate, indicating that the power supply is active and providing 13.8V DC output.
- Monitor Device: Observe your connected device to ensure it is receiving power correctly.
- Power Off: When finished, flip the Power Switch to the 'OFF' position. Disconnect your device from the output terminals.
Image 6.1: The SPS-1330 providing power to a radio.
7. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your power supply.
- Cleaning: Keep the unit clean and free from dust. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Ventilation: Periodically check that the ventilation openings and the cooling fan are not obstructed by dust or debris.
- Cooling Fan: The built-in cooling fan operates automatically. If you notice unusual noises or reduced airflow, consult qualified service personnel.
Image 7.1: Internal view showing the cooling fan.
- Fuse Replacement: If the unit fails to power on, the fuse may need replacement. Disconnect the power cord before checking or replacing the fuse. The fuse holder is located on the rear panel. Use only a fuse of the specified type and rating (e.g., 8A).
8. Troubleshooting
If you encounter issues with your power supply, refer to the following table for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power, indicator off | Power cord not connected; Wall outlet no power; Blown fuse | Check AC power cord connection; Test wall outlet; Replace fuse (refer to Maintenance section) |
| DC output indicator off, but power switch is ON | Internal fault; Overload protection activated | Disconnect all loads and restart; If problem persists, contact support |
| Unit overheats | Blocked ventilation; Excessive load | Ensure clear airflow around the unit; Reduce connected load |
| No power to connected device | Incorrect wiring; Loose connections; Device fault | Verify positive/negative connections; Tighten screw terminals; Test device with another power source |
9. Specifications
Detailed technical specifications for the Jesverty SPS-1330 power supply:
| Feature | Detail |
|---|---|
| Model Number | SPS-1330 |
| Brand | Jesverty |
| Product Dimensions (L x W x H) | 8.5 x 15 x 22 cm (3.35 x 5.9 x 8.66 inches) |
| Item Weight | 1.42 Kilograms (approx. 3.13 lbs) |
| Material | Metal |
| Color | Black |
| Input Voltage | 230 Volts (AC) |
| Output Voltage | 13.8 Volts (DC) |
| Output Current | 30 A (Maximum) |
| Maximum Power | 414 Watts |
| Connector Type | Screw Terminals |
| Form Factor | Boxlike |
| Country of Origin | China |
| Energy Specifications Met | CE, FCC |
| UPC | 680306173648 |
| GTIN | 680306173648 |
10. Warranty and Support
Information regarding product warranty and customer support is not available in the provided product data. Please refer to the product packaging or the manufacturer's official website for details on warranty coverage and how to contact customer support for assistance.
