Locking And Unlocking The Keys; Power Save Function - Simrad IS20 Combi Manual

Locking and unlocking the keys

The IS20 keys may be locked to prevent any unintended
operation.
The key lock function is enabled by pressing the Menu/
+
Enter and the Light keys simultaneously.
A locked instrument has a
padlock symbol in the upper left
corner.
When the keys are locked, any key
press will activate the Disable
key lock overlay window. The key
lock function is then disabled by
pressing the Menu/Enter key.

Power save function

The power save function is activated by pressing and
holding the Light key for 3 seconds.
When power save is activated, the display will be turned
off.
Any key press or activated alarm will disable the power
save function.
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16 Operation
A dialog will show how long the
Light key has to be remained
pressed before the function is
activated.