Komatsu GALEO HM350-2 Operation & Maintenance Manual page 107

EXPLANATION OF COMPONENTS
POWER SWITCH/VOLUME
Turn this knob (1) to the right until it clicks to turn the power on.
Turn it further to increase the volume.
AUTO-STORE/PRESET SCAN BUTTON
Use this button (2) to actuate the preset scan and auto-store
functions.
Auto-store
Each time this button is pressed for more than 2 seconds while
in radio reception, this auto-store function automatically starts to
search for the desired station within a receivable band, and
memorize the frequency in the preset memory. During this
scanning process, the frequency shown in the right side of
display continues to change. This indicates that each frequency
is memorized in the auto-store.
REMARK
The auto-store function cannot be used when the channel display is flashing.
When the display is flashing, the preset scan function is being used.
Preset scan
If this button is pressed for less than 0.5 second while in radio reception, programs from the six preset stations
in the same band will be broadcast one after another for 5 seconds each, starting from No. 1 through No. 6
stations consecutively.
When the desired station is found, press the button again. This stops the preset scan tuning process and switches
to ordinary broadcasting. The same process will be repeated continuously until the button is pressed again.
BASS CONTROL KNOB
Turn this button (3) to the left to reduce the low tones; turn it to the
right to emphasize the low tones.
Direction (a): Low tone reduced
Direction (b): Low tone emphasized
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OPERATION