J.P. Instruments EDM 740 Pilots Guide - Manual (Page 18)

Page 18 Engine Data Management
LF Button - Secondary functions
 In the pilot programming procedure, holding or tapping the LF
button is used to increment or decrement parameter values and
toggle between Yes and No answers to questions.
STEP and LF buttons together
 Holding both the STEP and LF buttons simultaneously, for
several seconds, changes to the Pilot Programming Mode.
 Holding both the STEP and LF buttons simultaneously for
several seconds when in a unit programming mode and ‘END? Y’
is displayed will take you to the next programming mode (if one
exists).
 Holding both the STEP and LF buttons simultaneously for
several seconds after entering LeanFind mode but before
beginning to lean will toggle between leaning ‘Rich Of Peak’ and
‘Lean Of Peak’.
 Tapping both the STEP and LF buttons simultaneously in
Manual mode toggles to include or exclude the displayed
parameter from the Automatic mode. It has no affect on the
displayed parameters in the Manual mode.