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azimuth range may be limited to 75 degrees left and
right.
P/CP LIMITS The PNVS or TADS is at a gimbal limit.
P/CPG FORWARD The PNVS or TADS has been slaved to fixed forward
through use of the ACQ SEL switch.
P/CPG PNVSBST? The FCC has detected an alteration of internal values
affecting the PNVS alignment. The PNVS will function
normally but without alignment correction.
P/CPG TADSBST? The FCC has detected an alteration of internal values
affecting TADS boresight harmonization. The TADS will
function normally but without CBHK correction.
P INVALID CPGLOS’ ACQ SEL switch is in the CPG position and there is no
valid CPG LOS.
P UP=? LO=? Pilot has actioned the missile system. If a ? is present,
no missiles are coded and ready. When the missiles are
coded and ready or tracking, the code letter will be
displayed. The code of the priority channel will flash.
CPG TADSFAIL FD/LS has detected the TADS system as NO-GO.
4-48 Change 3
TM 1-1520-238-10
Table 4-16. High Action Display Sight Status - continued
Crewmember
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
CPG
Message
FLIR NOT. . . COOLED
FLIR OFF
MSL LNCH
SIM LNCH
TOF = TT
TOF=TTT
FIRE . . . MISSILES
LASE 1 . . . TARGET
LASE 2 . . . TARGET
LASE 3 . . . TARGET
LASE 4 . . . TARGET
THRU
LASE 16 . . . TARGET
EOT
BOT
RECORDER
RCDR ON
RCDR FAIL
RCDR OFF
INTERNAL . . . BORESITE
OUT-FRNT . . . BORESITE
NAV?
Description
The TADS FLIR has not cooled down sufficiently for
optimum performance; cool down should not exceed 20
minutes.
TADS FLIR is turned off, but FLIR has been selected as
the sensor.
A missile has been launched for a remote designator.
A training missile has been launched for a simulated
remote designator.
The time-of-flight remaining for the missile launched
for the remote designator.
The time-of-flight remaining for the missile launched
for the remote designator.
A subsequent missile may be fired for the remote
designator.
The remote designator must have his laser on for
missile terminal guidance. The crewmember may use
this message to cue the remote designator when to turn
on the laser.
End of tape. The video tape cassette is at the end; no
tape remains.
Beginning of tape. The VRS has completely rewound
the video tape cassette.
The video recorder has been selected to record.
The video recorder has been selected to record.
The video recorder has been selected and has been
detected as NO-GO.
The video recorder has been deselected and has stopped
recording.
The TADS internal boresight has been selected by
having the BRSIT TADS/OFF switch placed in the
TADS position.
The TADS out-front boresight has been selected by
having the LAT tracking when the BRSIT TADS/OFF
switch is placed in the TADS position.
A Northing or Easting distance differential greater than
6100 meters exists between the doppler and the FCC
and the doppler data is now considered bad or invalid.
Change 4 4-49
TM 1-1520-238-10
4-50 Change 6
Table 4-16. High Action Display Sight Status -- continued
Crewmember Message Description
CPG CUE UPDT . . . BORESITE The TADS cue update boresight has been selected by
having the IAT in manual and the SLAVE latched Low
when the BRSIT TADS/OFF switch is placed in the
TADS position.
CPG INVALID . . . PLT LOS ACQ SEL switch is in the PLT position and there is no
valid PLT LOS.
CPG TGT = X Indicates selected address in the target NAV indexer
(0-9). If X is replaced by a ?, no data is stored in target
location.
CPG FCC LOAD Power up, checksum test has failed.
NOTE
The FCC LOAD message will be automatically cleared when the aircraft is airborne. The message
clearing does not indicate that appropriate corrections have been entered. The following data must
be verified and corrected as appropriate. Any or all of the data may be in error: CBHK boresight
parameters, AWS harmonization values, aircraft data (PPOS ALT, SPH and MV), laser codes, and
waypoint/target latitude/longitude and altitudes.
Table 4-17. High Action Display Range and Range Source
Crewmember Message Description
NOTE
The Fire Control Computer (FCC) is controlling the MUX whenever the symbol located between Kilometers
and tenths of Kilometers is a colon (:). The Backup Bus Controller (BBC) in control is indicated
by a period (.) instead of a colon.
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