1. Introduction and Overview
This manual provides essential instructions for the safe and effective use of your saschedross AC/DC Adapter. This power supply is designed to provide reliable power to various vintage Olympus Pearlcorder MicroCassette Voice Recorders, including models S711, S712, S713, S714, S725, S301, S-301, S900, and S904. It converts standard AC wall power to the required DC 3V - 3.3V for your device.
Please read this manual thoroughly before using the adapter to ensure proper operation and to prevent damage to your device or the adapter itself.
2. Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Use the adapter only with compatible Olympus Pearlcorder models as specified.
- Ensure the power outlet voltage matches the adapter's input voltage range (100-240VAC, 50/60Hz).
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to disassemble or modify the adapter.
- Unplug the adapter from the wall outlet when not in use for extended periods.
- The adapter features built-in safety protections:
- OVP (Over Voltage Output Protection): Protects your device from excessive voltage.
- OCP (Over Current Output Protection): Guards against excessive current flow.
- SCP (Short Circuit Output Protection): Prevents damage from short circuits.
3. Setup
Follow these steps to set up your AC/DC adapter:
- Inspect the Adapter: Before use, visually inspect the adapter and its cable for any signs of damage.
- Connect to Device: Locate the DC input jack on your Olympus Pearlcorder MicroCassette Voice Recorder. Carefully insert the barrel connector of the adapter into the device's DC input jack. Ensure a snug fit.
- Connect to Power Outlet: Plug the AC prongs of the adapter into a standard wall power outlet (100-240VAC, 50/60Hz).
- Verify Connection: Once connected, your Pearlcorder should receive power. Refer to your Pearlcorder's manual for specific power indicator lights or operational cues.

Figure 3.1: The saschedross AC/DC Adapter with its barrel connector, ready for connection.
4. Operating Instructions
The saschedross AC/DC Adapter is designed for straightforward operation:
- Once properly connected as described in the "Setup" section, the adapter will supply continuous power to your Olympus Pearlcorder.
- You can now operate your Pearlcorder as usual, following its own instruction manual for recording, playback, and other functions.
- The adapter is suitable for extended use, providing a stable power source for your device.

Figure 4.1: Example of the compact adapter being used with a portable device, highlighting its ease of use.
5. Maintenance
Proper maintenance ensures the longevity and reliable performance of your adapter:
- Cleaning: Disconnect the adapter from both the wall outlet 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 winding the cable to prevent damage.
- Cable Care: Regularly check the cable for any fraying, cuts, or bends, especially near the connectors. If damage is observed, discontinue use immediately.
6. Troubleshooting
If you encounter issues with your adapter, refer to the following common troubleshooting steps:
- Device Not Powering On:
- Ensure the adapter is securely plugged into both the wall outlet and your Pearlcorder.
- Verify that the wall outlet is functional by testing it with another device.
- Confirm that your Pearlcorder model is listed as compatible with this adapter.
- Check the adapter's cable for any visible damage.
- Intermittent Power:
- Ensure all connections are firm and not loose.
- Avoid bending or stressing the cable during use.
- Adapter Feels Hot:
- A slight warmth during operation is normal. However, if the adapter becomes excessively hot to the touch, unplug it immediately and discontinue use. This could indicate an internal fault or an incompatible device.
If troubleshooting steps do not resolve the issue, contact customer support.
7. Specifications
| Brand | saschedross |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| Input Voltage | 100-240VAC, 50/60Hz (World Wide Input) |
| Output Voltage | 3V - 3.3V DC |
| Connector Type | Barrel Connector |
| Safety Features | OVP, OCP, SCP Protection |
| Compatible Devices | Olympus Pearlcorder S711, S712, S713, S714, S725, S301, S-301, S900, S904 MicroCassette Voice Recorders |

Figure 7.1: Dimensions of the saschedross AC/DC Adapter.

Figure 7.2: The adapter features a 6.5-foot long power cable for flexible placement.
8. Warranty and Support
For warranty information or technical support, please refer to the contact details provided by your retailer or the manufacturer, Shenzhen Waweis Technology Co., Ltd. Keep your purchase receipt as proof of purchase.





