Boss Audio Systems BV7990T User Manual page 12

BASIC OPERATION
AF Function
Press and hold the SELECT knob for more than two seconds in the direction of
the TA/AF markings to turn on the Alternate Frequency function. When is on,
the radio will continuously monitor the frequency and will switch to another one
if the signal is stronger.
Pressing and holding for a longer time will open a selection menu for setting up
the specific behaviors of the system when AF function is enabled.
7. APS, DISPLAY FUNCTIONS (using the SELECT knob)
Scan Function
In Radio mode, press the SELECT knob briefly down, in the direction of
the APS/DISP markings, to scan and play all the presets in radio bands in order.
If you like one of them, press the knob again to stop the scanning.
Automatic Preset Setup
In Radio mode, press and hold the SELECT knob down, in the direction of
the APS/DISP markings, for about two seconds for the tuner to automatically
scan the current AM or FM frequency band and assign the strongest stations
found to the six preset buttons. To set up the presets for a different band,
press the BAN D button as need to move to that band, and again press and hold
the SELECT knob for about two seconds to have the tuner auto-scan and setup
the presets for that band.
Display ON/OFF Function
In Disc Playback mode, press and hold the SELECT knob down, in the direction
of the APS/DISP markings, for about two seconds, to turn off the display image
(sound will stay on). Repeatedly press the SELECT knob to step through
the BACKGROUND COLOR options.
TV System Select
In TV mode, press the SELECT knob repeatedly to cycle through the different
TV standards (NTSC, PAL, etc). If you are in European frequency mode,
use the VOL+/- knob to select among the PAL options.
8. MUTE PTY BUTTON
Press this button to turn off the audio. Press again to restore the volume to the
prior level. You can also disable the MUTE function by turning the VOL +/- knob .
In RDS Radio mode, press this button repeatedly to step through the different
station categories (such as NEWS, INFO, SPORTS, etc). When you have selected
the category, the radio searches for stations in that category.
9. ANGLE (Screen position)
This button allows you to change the angle of the screen module in four steps.
Press this button repeatedly to cycle through the different positions.
10. PLAY/PAUSE, CH 1-6 (RADIO PRESET) BUTTON
In Disc Playback mode, press this button to pause playback. Press again to
resume playback.
In Radio Mode
Press this button repeatedly to preset station. With this system a total of 30
stations can be stored in the memory . Each band store up to six preset stations.
The stations might be FM1, FM2, FM3, AM1 (MW1) and AM2 (MW2)
band. The operation as below :
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