onerbl 7.5V AC/DC Adapter

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onerbl 7.5V AC/DC Adapter User Manual

For Brookstone Sleep Therapy Relaxation Sound Machines (Models: SY-07015, Tranquil Moments II, 12 Plus, 590877, 530014, 359901, 672519, 589796)

1. Introduction

This manual provides essential information for the safe and effective use of your onerbl 7.5V AC/DC Adapter. This adapter is designed as a replacement power supply for various Brookstone Sleep Therapy Relaxation Sound Machines. Please read this manual thoroughly before use and retain it for future reference.

Front and side view of the onerbl 7.5V AC/DC adapter

Image 1: Front and side view of the onerbl 7.5V AC/DC adapter. The adapter is black with a standard US two-prong plug. The label on the front indicates "AC Adapter Input: 100-240VAC 0.3A 50/60Hz" and "MADE IN CHINA".

2. Safety Information

  • Ensure the adapter's voltage and current ratings match your device's requirements. This adapter provides 7.5V DC output.
  • Do not expose the adapter to water, moisture, or extreme temperatures.
  • Avoid dropping or subjecting the adapter to strong impacts.
  • Do not attempt to open or repair the adapter. Refer servicing to qualified personnel.
  • Unplug the adapter from the power outlet when not in use for extended periods.
  • This adapter features built-in over-voltage and over-heat protection for safe operation.
Diagram showing multiple protection features of the adapter

Image 2: Diagram illustrating the adapter's safety features, including short-circuit protection, over-voltage protection, and over-current protection, indicated by respective icons.

3. Setup and Connection

  1. Verify Compatibility: Confirm that your device requires a 7.5V DC power input. This adapter is specifically designed for Brookstone Sleep Therapy Relaxation Sound Machines (models SY-07015, Tranquil Moments II, 12 Plus, 590877, 530014, 359901, 672519, 589796).
  2. Connect to Device: Insert the DC output plug of the adapter into the power input jack of your Brookstone Sleep Sound Machine. Ensure a firm connection.
  3. Connect to Power Outlet: Plug the AC input prongs of the adapter into a standard AC 100-240V 50/60Hz wall outlet.
  4. Power On: Once connected, your device should receive power. Refer to your device's manual for specific power-on procedures.
Adapter connected to a power strip and a device

Image 3: The onerbl AC/DC adapter plugged into a power strip, with its cable extending to connect to a compatible electronic device, likely a sound machine.

4. Operating Instructions

The onerbl 7.5V AC/DC Adapter functions as a direct power supply. Once properly connected, it continuously provides power to your compatible device. There are no user-adjustable settings on the adapter itself.

  • Always ensure the adapter is securely plugged into both the wall outlet and your device.
  • If your device has an on/off switch, use that to control its power.
  • The adapter is designed for continuous operation within its specified input and output parameters.

5. Maintenance and Care

  • Cleaning: Disconnect the adapter from the power source and your device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
  • Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and moisture. Avoid tightly coiling the cable to prevent damage.
  • Inspection: Periodically inspect the adapter and its cable for any signs of damage, such as frayed wires, cracks, or bent prongs. If damage is observed, discontinue use immediately.
Diagram showing durable design features of the adapter cable

Image 4: Diagram highlighting the durable design of the adapter's cable, featuring a copper wire core and a PVC jacket for enhanced longevity and safety.

6. Troubleshooting

ProblemPossible CauseSolution
Device not powering on.
  • Adapter not fully plugged in.
  • Wall outlet not functioning.
  • Device's power switch is off.
  • Adapter or device malfunction.
  • Ensure all connections are secure.
  • Test the outlet with another device.
  • Turn on the device's power switch.
  • Try a different compatible adapter (if available) or contact device support.
Adapter feels unusually hot.
  • Overload or short circuit.
  • Poor ventilation.
  • Immediately unplug the adapter. Check for device compatibility and any visible damage.
  • Ensure the adapter is in a well-ventilated area.

7. Specifications

  • Brand: onerbl
  • Manufacturer: Shenzhen Waweis Technology Co., Ltd
  • Input Voltage: AC 100-240V, 50/60Hz
  • Output Voltage: DC 7.5V
  • Protections: Over Voltage Protection, Over Heat Protection, Short-Circuit Protection, Over-Current Protection
  • Cable Length: Approximately 76 inches (6.33 feet)
Dimensions and cable length of the AC/DC adapter

Image 5: Visual representation of the adapter's dimensions (approximately 2.6 inches length, 1.6 inches width, 1.2 inches height) and cable length (76 inches).

8. Warranty and Support

For warranty information or technical support, please refer to the retailer or manufacturer's official website where the product was purchased. Keep your purchase receipt as proof of purchase.

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