User Manual
Integrated Timer
The Integrated Timer is shown under the model name. It indicates the total TX on-time for the
current model. It can be reset in the Timer function found in the FUNCTION List.
Display Contrast Adjust
The Display Contrast Adjust parameter can be selected and adjusted on the Main Display. Use
the rotary selector to highlight and select this parameter and adjust the display contrast for best
viewing. The contrast may require adjustment for extreme changes in temperature.
Airplane Graphic
The airplane graphic indicates that the current model is set up using the ACRO/airplane Model
Type as set in the Devic.SEL function. If the GLID/Sailplane was selected as the model type,
then a graphic of a sailplane will appear here, and a graphic of a helicopter will be displayed if
the HELI model type is selected.
Aileron Trim
The Aileron Trim bar, trim percentage and trim direction are displayed under the airplane
graphic, providing both a graphic and numerical representation of the present setting of the
aileron trim. There are identical trim bars/indicators for the Elevator and Rudder trims. The
numerical values are particularly useful when Flight Mode trims are active in the Devic.SEL
function. When an aircraft is flown for the first time, it can be trimmed for the first Flight Mode
only. If the aircraft was badly out-of-trim, the aircraft can be landed and the trims for the other 2
Flight Modes can be set to the same values as the first Flight Mode, avoiding the severe out-of-
trim condition for the other 2 Flight Modes.
Countdown Timer
If the Countdown timer is set in the Timer function of the FUNCTION List, the starting value of
the timer is displayed above the JR PROPO logo on the Main Display. When the timer is started
by pressing the button next to TIM in the lower left of the display, the running counter can be
observed to determine how much time is available. If the Stopwatch timer is active, it will
appear in place of the Countdown timer. If neither the Countdown nor Stopwatch timers is
active, nothing is displayed in this portion of the display.
NOTE: if the Snap Roll function has not been activated, the timer may be started and stopped
using the Snap Roll switch.
TIM
The TIM indicator appears next to the lowermost button along the left side of the display when
either the Countdown or Stopwatch timer has been activated in the Timer function. Pressing the
button next to TIM starts and stops the timer. Pressing CLR when TIM is displayed resets the
timer.
LST
LST will appear next to the LIST button if the rotary selector is rotated to this position. It can be
highlighted and selected using the rotary selector to obtain the FUNCTION List, or the button
next to LIST may be pressed to obtain the FUNCTION List.
ENT Button
Pressing the ENT button returns to the last function accessed in the FUNCTION List.
JR XP9303 Detailed Function Descriptions 2