FUTABA 12Z Series Instruction Manual page 30

DISPLAY
The following LCD screen adjustments and auto
power off setting are possible:
[Return Key]
LCD contrast adjustment
*Use the cursor lever to select "LCD CONTRAST" and
adjust the contrast by turning the data input dial to the left
and right.
*When you want to reset the contrast to the initial state, select
"LCD CONTRAST" and push the enter button for 1 second.
LCD CONTRAST is reset to the center position.
30 <Functions of System Menu>
PUSH
Auto power off time setting
*When the amount of time a stick, switch, etc. (excluding
screen operation) is not operated exceeds the set time, the
power is automatically turned off. This time can be set up
to 1 hour in 10 minute steps. "Auto power off" can also be
disabled ("NEVER").
*When the transmitter is expected to be idle for a long time
during flight with a glider, etc., set the auto off timer to
"NEVER" or a long time.
[Cursor Lever]
[Data Input Dial]
[Enter Button]