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recall data to be displayed on the line associated with the VAB depressed.
VAB 5 Depression changes the entry and memory recall data display to HEX format.
VAB 6 Depression changes the entry and memory recall data display to OCTAL format.
VAB 7 Allows selection of a data refresh rate for the READ page. Alternatives are 1, 2, or 5 Hz.
System defaults to 1Hz at power up.
VAB 8 Returns to the PGM MENU top level page.
c. Area Weapon Subsystem (AWS HARMONIZA- Line 1. - Displays the centered page title AWS HARTION)
Page. The AWS HARMONIZATION page is ac- MONIZATION.
cessed by depressing VAB 5 on the PGM MENU top
level page. The AWS HARMONIZATION page is Line 2. - Displays the centered legend DELTAS -MR-.
shown in figure 3-25.21 and discussed below. VAB func- Line 3. - Left-hand character field displays the legend
tions are explained in Table 3-22.16 . OAz+XX.X, indicating the last azimuth correction entered.
Right-hand character field displays the legend
EL+XX.Xo, indicating the last elevation correction entered..
Line 4. - Displays the centered legend TOTALS -MR-.
Line 5. - Left-hand character field displays the legend
AZ+XX.X, signifying the total correction value for azimuth.
This value is limited to +/- 20.0. Right-hand
character field displays the legend EL+XX.X, signifying
the total correction value for elevation. This value is
limited to +/- 20.0.
Line 6. - Blanked.
Line 7. - The right-hand character field displays the
legend PGMO. -
Figure 3-25.21. AWS HARMONIZATION Page Line 8: Scratchpad.
Table 3-22.16. AWS HARMONIZATION PAGE VAB OPERATIONS
Control/Display Function
VABs 1,3,4,5 & 7 Inactive.
VAB 2 Allows for entry of additional azimuth bias corrections. Azimuth correction angle entry
must be three digits (additional characters are ignored). It is not necessary to enter the
decimal point; it will be automatically placed. A positive value is assumed if a +/- sign is
not entered.
VAB 6 Allows for entry of additional elevation bias corrections. Elevation correction angle entry
must be three digits (additional characters are ignored). It is not necessary to enter the
decimal point; it will be automatically placed. A positive value is assumed if a +/- sign is
not entered.
VAB 8 Returns to the PGM MENU top level page.
3-64.24 Change 4
TM 1-1520-238-10
d. Alphanumeric Display (AND) Page. The AND
page is accessed by depressing VAB 8 on the PGM
MENU top level page. All data presented on the AND
page is Read-Only. The AND page is shown in figure
3-25.22 and discussed below. VAB functions are inactive.
To return to PGM MENU top level page, depress
the PGM FAB.
Figure 3-25.22. ALPHANUMERIC DISPLAY
Page
Line 1. - Left-hand character field displays the AND
Sight Status Field. Right-hand character field displays
the AND Weapon Status Field.
Line 2. - Displays the AND TADS Status Field.
Line 3. - Displays the AND LST/RFD Status Field.
Line 4. - Displays the AND Missile Enhancement Dis-
Cols. 7 & 8 show the LH Inbd pylon missile status
Cols. 15 & 16 show the RH Inbd pylon missile status
Cols. 19 & 20 show the RH Outbd pylon missile status
System Advisory Messages. System Advisory messages
are displayed on the scratchpad line (line 8) of the
CDU. Advisory messages may occur at any time on any
page. When a message is displayed, it will remain displayed
until depression of the CLR FAB. No other data
may be entered while an advisory message is displayed,
but an advisory message will overwrite existing data on
the scratchpad line. Once the advisory message is
cleared from the scratchpad, previously entered data in
the scratchpad will be recalled automatically. A listing
of the system advisory messages and their meanings is
presented in table 3-22.17. If the FCC detects a fault
(on power up) that occurred during the last FCC shutdown
sequence, an extended, or full page advisory message
(fig. 3-25.23) will be displayed on the CDU indicating
the detected fault. Up to two faults from the
Extended Advisory Message Table (table 3-22.18) can
be displayed on lines 3 and 4 of the CDU display. The
extended message(s) will only be displayed if the FCC
has enough functionality to perform the task at the
time it is required. Depressing any key on the CDU will
cause the FCC to attempt to clear the fault(s) and proceed
with normal operation. Information presented on
the display should be recorded for maintenance action
play Field. prior to clearing the fault condition.
Table 3-22.17. System Advisory Messages
ADVISORY MESSAGE
BST DATA LOAD FAIL
INIT DATA LOAD FAIL
　
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