TM 1-1520-218-10 3C-203 actuation  of  the  stick  changes  the  active  line  while horizontal  actuation  controls  paging.    Right  actuation selects  the  next  page  and  left  actuation  selects  the previous page. (4)   Normal    Checklist    Key.        The    normal checklist  key,  placarded    NORM,  provides  entry   into the multifunction display's normal checklist mode. (5)   Emergency Checklist Key. The emergency  checklist  key,  placarded   EMER,  provides entry     into     the     multifunction     display's     emergency checklist mode. (6)   Skip   Key.      This   key,   placarded   SKP, moves the cursor to the next displayed waypoint in the MAP   or   PLAN   mode   or   skips   the   active   line   in   a checklist or index and advances the active selection to a subsequent line when text is being displayed on the MFD. (7)   Enter   Key.      This   key,   placarded   ENT, enters the displayed designator position (LAT/LON) as a  waypoint  in  place  of  a  TO  waypoint  in  the  MAP  or PLAN   mode.      In   a   text   mode   (checklist   or   index), actuation of the switch checks off a line in a checklist or selects an index line item for display. (8)   Recall   Key.      This  key,   placarded   RCL, recalls the cursor to its home position when in MAP or PLAN   mode.      In   a   text   mode   (NORM   or   EMER checklist),  actuation  of  this  switch  recalls  the  lowest- numbered skipped line in a checklist. (9)   Page   Key.      This   key,   placarded   PAG, advances the page and places the active line selection at the first line of the page. (10)   Multifunction  Display  Brightness  Control.   This   control,   placarded   DIM,   controls   multifunction display brightness. (11)   Data   Key.      This   key,   placarded    DAT, adds  long  range  navigation  information  to  the  MFD MAP or PLAN displays. (12)   VOR   Key.      This  key,  placarded    VOR, adds  VOR/DME  symbols  to  the  MFD  MAP  or  PLAN displays. (13)   Airport  Key.    This  key,  placarded   APT, adds   airport   symbols   to   the   MFD   MAP   or   PLAN displays. (14)   Range  Control.    This  control,  placarded RNG INC / DEC, selects map range limits of 5, 10, 25, 50, 100, 200, 300, and 600 nm.  Movement of switch toward    INC    increases    the    selected    range,    while movement   toward   DEC   decreases   selected   range.   This switch is active only when  WX is not selected for display.  When  WX is selected, range is controlled by the radar controller. d.  MFD Weather Radar Normal Operation. If the radar system is operated in any other mode other than standby while the aircraft is  on  the  ground,  direct  the  nose  of  the aircraft  so that the antenna scan sector is free   of   large   metallic   objects,   such   as hangars or other aircraft, for a distance of 100   feet   (30 meters)   and   tilt   the   antenna fully upwards.  Do   not   operate   radar   during   refueling   of aircraft  or  during  refueling  operations that are within 100 feet (30 meters). Do    not    operate    radar    if    personnel    are standing   too   close   to   the   270°   forward sector of the aircraft. Output power is radiated in TEST mode. (1)   Initial Control Settings. 1.   Mode control – OFF. 2.   GAIN control – PRESET position. 3.   TILT control – +15°. (2)   Turn On Procedure. 1.   Avionics Master Switch – ON. 2.   Mode Control – STBY. NOTE When  power  is  first  applied,  the  radar  will be   in   WAIT   for   45   seconds   to   allow   the magnetron to warmup. (3)   Weather Radar Operation. 1.   Weather/map Switch – WX. 2.   Range Switches – As required. WARNING