DO NOT use RWND position unless the intent is to com-
pletely rewind the tape because all elapsed counter refer-
ences will no longer be valid. If an event mark is encoun-
tered during playback the video recorder will automatically
stop and freeze the image. To proceed past the event
mark, either forward or backward, place the MODE switch
in the STBY position then back to the PLAY position. The
will be displayed for eight sec-
onds in the sight status block of the CPG HAD and AND
after the VID RCD pushbutton is activated to stop record-
4.6 DATA ENTRY KEYBOARD (DEK).
The DEK is functional on
craft. It is functional on
aircraft as a
backup to the CDU when the BBC is in
The DEK placarded DATA ENTRY (fig 4-4), is located in
the CPG left console (fig 2-12) and receives power from
the No. 1 essential bus and No. 3 essential dc bus; protec-
tion is provided by the FC AC and FC DC circuit breakers
located on the pilot overhead circuit breaker panel. The
DEK is continuously monitored by FD/LS; the on com-
mand test (test 15-UTIL) will fault isolate to the LRU. Con-
trol and functions are described in table 4-4.
Data Entry Keyboard
Data Entry Keyboard Control Functions
Deactivates the keyboard.
Power applied to keyboard and self test initiated, all inputs from the keyboard are
Input of CPG range, manual or automatic, in meters, aircraft to target. Automatic
range calculations are commanded by the input of 0 range. Maximum manual range
Input to the fault detection/location system.
Input of standard NATO/Tri-Service laser code data.
Input of coordinate data for the waypoint/ targeting subsystem.
(Spare Position 1) Input of data to the fire control computer.
4.6.1 DEK Operation.
a. Key in a Letter:
Press the shift key correspond-
ing to the relative location of the desired letter. Then press
the key with the desired letter.
b. Key in a Number:
Press the desired key.
c. Enter Keyed-in Data:
Press any shift key. Then
press the ENTER/SPACE key.