This document lists some requirements for FCC certification of products.
This document serves as a regulatory and safety guide for the Yamaha WK99420. It outlines FCC requirements for Class B digital devices, emphasizing that modifications may void authorization and that high-quality shielded cables must be used for connections. The text includes specific warnings regarding sound levels to prevent hearing loss and the proper use of power cords and extension cables.
The minimum wire size for a 25-foot cord or less is 18 AWG.
The name plate is located on the bottom of the product.
The average life span of this type of battery is approximately five years.