This manual explains the functions and operation of YAMAHA AUDIO NETWORK receivers.
The document serves as a comprehensive user guide for the Yamaha P-90 digital piano. It begins with critical safety warnings regarding power supply usage, extension cords, and environmental conditions to prevent damage or injury. The text emphasizes proper battery handling and data backup procedures to ensure instrument longevity and performance retention.
Subsequent sections cover essential operational precautions, including correct volume management to avoid hearing loss, maintenance cleaning protocols using only soft dry cloths, and handling guidelines for the keyboard and panel. It also details the importance of using recommended stands and avoiding interference from other electronic devices.
The manual specifies using the specified adaptor PA-3C or an equivalent recommended by Yamaha.
You should turn the power switch on for a few minutes at least once a week to prevent data loss.
Use only a soft, dry cloth; do not use paint thinners or solvents.
The minimum wire size required for an extension cord of 25 feet or less is 18 AWG.