7.0 Settings and Maintenance
7.1 Volume Adjustment
If the volume level of the VFS101's audio output requires adjustment
relative to other audio sources, the following procedures may be
used. These procedures are only to be used while the aircraft is not
moving.
To INCREASE the VFS101 audio output volume:
1. Plug a suitable aviation headset into the pilot headset jack.
2. Adjust the Primary GPS to display the active flightplan.
3. If the title line is obscured by a Direct-To operation, cancel
the Direct-To by pressing the Direct-To button, then the
MENU button, then the ENT button on the primary GPS.
4. With the aircraft audio panel, VFS101 and primary GPS
powered up, enter a new title for the active flightplan on the
primary GPS containing the letter “U” (for “UP”) in the first
character position and no other characters. Press ENT to
install the new title.
5. Wait at least 10 seconds.
6. Briefly depress and release the VAS.
7. The title line will change to: “V <Volume Level 0-63> UP?
”
where the content in < > is replaced with a number indicating
the current volume level (e.g V 49).
8. Briefly press and release the VAS again. This will increase the
volume by one step. A tone should be heard through the
headset at the new volume level. Repeat until the volume is at
the desired level.
9. Depress and hold the VAS for at least two seconds. This will
return the VFS101 to normal operations, with the new output
volume level.
To DECREASE the VFS101 audio output volume:
1. Plug a suitable aviation headset into the pilot headset jack.
2. Adjust the Primary GPS to display the active flightplan.
3. If the title line is obscured by a Direct-To operation, cancel
the Direct-To by pressing the Direct-To button, then the
MENU button, then the ENT button on the primary GPS.
4. With the aircraft audio panel, VFS101 and primary GPS
powered up, enter a new title for the active flightplan on the
primary GPS containing the letter “D” (for “DOWN”) in the
first character position and no other characters. Press ENT to
install the new title.
5. Wait at least 10 seconds.
6. Briefly depress and release the VAS.
7. The title line will change to: “V <Volume Level 0-63>
DOWN?
”
where the content in < > is replaced with a number
indicating the current volume level (e.g. V 41).
8. Briefly press and release the VAS again. This will decrease the
volume by one step. A tone should be heard through the
headset at the new volume level. Repeat until the volume is at
the desired level.
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