This document is the official operating manual for the Yamaha SY99 music synthesizer. It contains essential safety warnings, FCC compliance information, and instructions for the safe use of the device.
The manual covers critical safety precautions regarding electrical shock, ventilation, and hearing protection. It also details the proper installation of power cords and the location of the nameplate for model and serial number verification.
The minimum wire size for a 25-foot cord or less is 18 AWG.
The average life span of this type of battery is approximately five years.
You should relocate or reorient the antenna.