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Figure 38-9. OBC Failure Acronyms (Sheet 9 of 11)
38-22
NAVAIR Of-F14AAD-I
OBC ACRONYM
SDIS
FHF
ACRONYM DEFINITION REMARKS
SINS Sensor Display SDIS failure
Indicator Set
SENSOR CONTROL
UNIT
SENSOR SLAVING
PANEL
SMS
SDSCU
SDSSP
Sensor control unit failure
Sensor slaving panel failure
Stores Management SMS failure
set
SMP SMP Stores management processor failure
MPRU MPRU Missile power relay unit failure
GUN CONT UNIT GCU Gun control unit failure
FTJU STA 2 FTJ2 Fuel tank jettison unit station No. 2 failure
FTJU STA 7 FTJ7 Fuel tank jettison unit station No. 7 failure
TYPE 1 DECODER DlSl Type 1 decoder station IA/B failure
INB
TYPE 1 DECODER 3/6 DlS.36 Type 1 decoder station 3/6 failure
TYPE 1 DECODER 415 DlS45 Type 1 decoder station 4/5 failure
TYPE 1 DECODER DlS6 Type 1 decoder station 6AlE failure
6AfB
TYPE 2 DECODER IB D2SiB Type 2 decoder station IB failure
TYPE 2 DECODER 3 D2S3 Type 2 decoder station 3 failure
TYPE 2 DECODER 4 D2S4 Type 2 decoder station 4 failure
TYPE 2 DECODER 5 D2S5 Type 2 decoder station 5 failure
TYPE 2 DECODER 6 D2S6 Type 2 decoder station 6 failure
TYPE 2 DECODER 6B D2SBB Type 2 decoder station 6B failure
AW-4 AWW-4 AWW-4 electrical fuzing switch failure
MISSILE PS MPS AIM-54 missile power supply failure
Figure 38-9. OBC Failure Acronyms (Sheet 10 of 11)
I
3833 ORIGINAL
NAVAIR 0%Fl4AAB1
FHF
OBC ACRONYM ACRONYM DEFiNiTlON REMARKS
TCN TACAN Tactical Air Navigation TACAN failure (OBC BASIC)
TACAN TACAN Tactical Air Navigation TACAN failure (OBC CNI)
TARP1 TARP1 Tactical Airborne TARP system failure (crew aleri)
Reconnaissance Pod
TARP2 TARP2 Tactical Airborne
Reconnaissance Pod
TARP/CiU communlcatlon faliure
RWR
COMPUTER
CONTROL STATUS
UNiT
RWR
RWRCP
RWRCU
Radar Warning Receiver RWR failure
Analyzer (CP-1293) failure
Control status unit failure
QUAD RECENER 45 RWRQl
QUAD RECEiVER 135 FiWRQ2
QUAD RECEiVER 225 RWRQB
QUAD RECEIVER 3 15 RWRQ4
SPECIAL RtXR FtWRSR
IhmGRATED RWRAN
~~N-~ENNA
@.PJ INTERFACE RWRAI
IFB INTERFACE RWRBI
NOW wow
Quadrant receiver (45 degrees) failure
Quadrant receiver (135 degrees) failure
Quadrant receiver (225 degrees) failure
Quadrant receiver (315 degrees) failure
Superhet receiver failure
Integrated antenna failure
interface failure between RWR and ASPJ
interface failure between RWR and IFB
Weight on/oft wheel discrete failure
ORIGINAL
Figure 38-9. OBC Failure Acronym (Sheet 11 of 11)
38-24
NAVAIR 01.FI4AAD-1
Figure 38-10. OBC Basic Format
38.3.3.2 Avlonlc Test Operation. Tests may be
done in a sequence (preflight/in-flight, and retest sequence)
o, r in groups( functionalg roup),o r on ani ndlvidual
basis. For any equipment selected and validated for
test, the progress of testing is indicated on all OBC
format types that contain equipment pushbutton legends.
Refer to Figure 38-l 1 for format examples.T est progress
is indicated on the OBC formats as follows:
1. Equipment pushbutton legends appear bright and
steady when a test cannot begin immediately because
of a dependency with at least one other
equipment. When the dependency no longer exists,
the equipment is commanded to test and the
pushbutton legend will then appear flashing.
2. Equipment pushbutton legends flash at bright intensity
when an equipment is in test.
3. Equipment pushbutton legends appear steady at a
normal level of intensity when an equipment is not
in test.
Commanded BIT testing interferes with normal operational
modes of equipment. Testing can be initiated
only when equipment is powered up and ready. If equipment
is currently not ready, equipment pushbutton legends
will remain steady.
All testing is terminated by the system when any of
the following occurs:
1. The ACM guard is lifted.
2. A weapon is selected.
3. A radar ACM mode is selected.
4. Interlock status changes from those conditions satisfied
at the initiation of test.
Note that not all tests can be terminated.
38.3.3.2.1 Automatic Test Sequences. There are
threet ypes of automatict est sequencesa,l l of which sm.
initiatedt bmught he OBC basicf ormat: in tlight, pretlight,
and retest. Each sequence allows the testing of many
WRAs with a single pushbutton. The system commands
eachW RA tc testi n a predeterminedo rder so thate quipment
conflicts are eliminated. Refer to BIT interlocks/
restrictions for the tests in each sequence.
　
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