This is a safety instruction manual for Yamaha electronic products
This document is the Owner's Manual for the Yamaha Tyros2 electronic keyboard. It contains essential safety warnings, product specifications, and environmental notices. The manual advises users to read all instructions before connecting the device to the main power supply and to verify the supply voltage matches the requirements printed on the name plate.
The manual states that the minimum wire size for a 25' cord or less is 18 AWG.
The average life span of the small non-rechargeable battery is approximately five years.
You should have the product serviced by a qualified service person.