This document describes the features and characteristics of the product, including the use of batteries or external power supplies, the importance of using specified power adapters and accessories, and the need to protect hearing.
This document is the official user manual for the Yamaha PSR-280 Portatone. It provides essential information regarding power supply requirements, battery usage, and environmental disposal notices. The text emphasizes strict adherence to specified adapters (PA-3B) and proper handling of batteries to prevent damage or injury.
You must use the specified adaptor PA-3B or an equivalent recommended by Yamaha.
Mixing new batteries with old ones can cause overheating, fire, or battery fluid leakage.
The average life span of this type of battery is approximately five years.