Yamaha MU100 Owner's Manual page 130

Effect Edit Mode
The MU100 features a built-in multi-effect processor with 7 independent
digital effects: Reverb, Chorus, Variation, Insertion 1/2, Part EQ and Multi
EQ. These are controlled in the Effect Edit mode.
In this section, only the effect Types and the global parameters common
to all Types are covered. For descriptions and details on the parameters for
each effect Type, refer to the separate SOUND LIST & MIDI DATA book-
let.
To enter the Effect Edit mode, press the EFFECT button. The following
menu appears:
Reverb (REV) .............................................................................. 134
Chorus (CHO) ............................................................................ 135
Variation (VAR) ........................................................................... 136
Insertion 1, 2 (INS1, 2) ............................................................... 138
About the Effect Connections - System and Insertion ............... 139
133
Effect Edit Mode