Using the Leitch FR-3923 NEO Frame Synchronizer is quite straightforward. First, make sure the correct power supply is connected properly. Once powered on, the device should start working automatically. When using it, avoid exposing it to extreme temperatures or humid environments. For maintenance, it's a good idea to check the internal components periodically. If you notice any dust buildup, use a soft, dry cloth to clean the device gently. Don't try to open the device on your own unless you have proper technical knowledge. In case of any issues, contact the manufacturer's support team.