Turn on the MR-8. Connect headphones to the headphones jack. Set the "Input A/Select" switch to "guitar." Connect a guitar to the "Unbalanced/Guitar" 1/4-inch connector of the "Input/A" section. Press the "Rec Select" key for track 1. Record a guitar part.
Mark the beginning and end of the section. Store the "Locate A" point while the recorder is playing back (or stopped) by pressing the "Locate A/In" key while holding down the "Store" key. The MR-8 then stores the time value of the recorder position to the "Locate A" point, and "Store Locate A" is shown on the display.
Store the "Locate B" point while the recorder is playing back (or stopped) by pressing the "Locate B/Out" key while holding down the "Store" key. The MR-8 then stores the time value of the recorder position to the "Locate B" point, and "Store Locate B" is shown on the display. Make sure the auto punch in/out mode is inactive. The loop mode is then active, and the "Locate A" and "Locate B" points are used as the loop start and end points.