AVIATION RECORDERS
OPERATOR'S MANUAL
MODEL FA2100GSE
PORTABLE INTERFACE (PI)
CVR Operation
Rev. 01 Page 3
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5
May 01/99
3.3
MONITOR MENU
3.3.1
Voice and Cockpit Area Microphone Channel Selection
The Monitor Menu allows the user to control which audio from the CVR is to be played over the
PI’s speaker or headphone jack. There are six OFF/ON entries on this menu, one each for
three High Quality (HQ) Voice Channels, an HQ Cockpit Area Microphone (CAM) channel, a
Standard Quality (SQ) Voice channel, and an SQ CAM channel. Each channel can be toggled
OFF or ON by positioning the highlight over the appropriate OFF/ON field and pressing the
SELECT key.
3.3.2
Volume Selection
There are two fields labeled UP and DOWN over which the operator can position the highlight.
Pressing select when the highlight is at either of these fields increases or decreases the vol-
ume through the local speaker. There is a graphical indication at the bottom center of the
menu that indicates the volume currently selected.
3.3.3
Normal/Reconstructed Audio Selection
A NORMAL/AC field is located to the left of the UP and DOWN fields. The operator can posi-
tion the highlight to this field by using the left arrow key from the UP or DOWN field. The op-
erator can then toggle between hearing normal or reconstructed audio.
In the Normal Mode the channel audio is monitored from the Recorder’s Acquisition Processor
PWA prior to being written into flash memory in the Crash Storage Memory Unit.
In the Reconstructed Mode the channel audio is monitored from the “reconstructed” digitized
audio which has been stored in the flash memory of the CSMU.
3.3.4
Monitor menu Settings
The settings that the operator has chosen on the Monitor menu persist even when the operator
leaves the Monitor menu to perform functions at other PI menus.
3.4
PLAYBACK MENU
The operator can enter this menu only when there is no record bias on the CVR. No record
bias means that this function will not work on the aircraft. As soon as power is applied to the
recorder on the aircraft, the unit is supplied a bias signal that puts it into a record mode of op-
eration. Attempting to enter this menu when the CVR is recording will result in a message “
CVR is recording” to appear on the menu for several seconds. The menu will then revert back
to the Main Menu.
3.4.1
Keypad Key Remapping During Playback
When the Playback Menu is selected, the keypad keys are remapped as shown on the Play-
back Menu in Figure 3
2. A diagram at the lower right of the menu indicates the new map-
ping. The keys now perform the functions that would be used in a tape recorder. The up ar-
row key is a PLAY key. The middle key is a STOP key.
Rev. 01 Page 3
−
5
May 01/99