TM 55-1510-219-MTF
PROCEDURE TROUBLESHOOTING REFERENCE
(4) HOLD key - Depress and check illuminated.
Coordinates in data display shall freeze at values
present when Hold key was pressed.
NOTE
While HOLD key is illuminated, TACAN and data
link updates are inhibited.
m.
UTM Inertial Position - Check as follows:
(1)
Data selector - UTM WYPT (check HOLD key
illuminated).
(2)
Left-hand display - Read northing in kilometers.
(3)
Right-hand display - Read zone and easting in
kilometers.
(4)
Compare
with
values
from
UTM
Position
procedure.
(5)
INSERT/ADVANCE Depress.
(6)
Left-hand display - Read extra precision northing
values to nearest meter.
(7)
Right-hand display - Read zone and extra
precision easting values to the nearest meter.
(8)
HOLD key - Depress to return the INS to normal.
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