The Roland DR-550MKII is a rhythm composer designed for creating and playing drum patterns and songs. This Owner's Manual guides users through the basic setup, including changing batteries and connecting power. It covers fundamental operations such as listening to demonstration songs and playing rhythm patterns in real-time.
The product is a Class B digital device.
The limits are designed to provide reasonable protection against harmful interference in a residential installation.
The user should try to correct the interference by one or more of the following measures: reorient or relocate the receiving antenna, increase the separation between the equipment and receiver, connect the equipment into an outlet on a circuit different from that to which the receiver is connected, or consult the dealer or an experienced radio/TV technician for help.