Maycom AR-108 User's Operation Manual page 15

▶ Display of Operating SCAN Delay Time Mode
If you press the "▲ or ▼" button in this setting mode, Scan Delay Time
will Increase (or decrease) 1 second per press of the button and
changed value will appear on the LCD.
NOTE : In the option setting mode,
A. If you hold "FUNC" button and then press "▲ or ▼" button, the
next (or previous) setting mode will appear on the LCD.
B. If you press the "Monitor " button, all changed contents will be
stored and the radio will return for normal operation.
C. Other buttons located on the front of the radio will not operate. If
you press these buttons, error beep tone will sound.
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