Other Functions; Key Lock Function; Beep Tone Function Cx Bcc See Ga) As 27 Resetting Microprocessor - Icom IC-A20 Owner's Manual

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8. OTHER FUNCTIONS
BEEP TONE FUNCTION
This feature prevents accidental changes of the operating frequency
or other functions selected from the KEYBOARD.
1) Push the KEY then push the KEY.
e "KEY LOCK" appears on the FUNCTION DISPLAY.
2) To clear the KEY LOCK FUNCTION, push the KEY then
push the KEY again.
The BEEP TONE FUNCTION provides beep sounds, allowing you to
make sure of key entries each time a key is pushed.
1) Push the LÆ] KEY and then the KEY to turn the function
ON and OFF alternately.
2) The volume of the tone can be adjusted by turning the
[VOLUME] CONTROL.
Reset the internal microprocessor:
ewhen the: FUNCTION DISPLAY occasionally displays erroneous
information during operation or when first applying power.
e when you want to erase all information in all memory channels.
Reset as follows:
Turn the power ON while pushing down both the and [cca]
KEYS.