TM 55-1510-222-MTF
P R O C E D U R E
T R O U B L E S H O O T I N G
R E F E R E N C E
(4) HOLD key - Depress and
check illuminated. Coor-
dinates in data display
shall freeze at values pres-
ent when Hold key was
pressed.
NOTE
While HOLD key is illuminated, TACAN,
GPS. and data link updates are inhibited.
n. UTM Inertial Position -
Check as follows:
(1) Data selector - UTM
WYPT (check HOLD key
illuminated).
(2) Left-hand display - Read
not-thing in kilometers.
(3)
(4)
(5)
(6)
(7)
Right-hand display - Read
zone and easting’in kilo-
meters.
Compare
with
values
from UTM Position pro-
cedure.
INSERT/ADVANCE -
Depress.
Left-hand display - Read
extra precision nor-thing
values to nearest meter.
Right-hand display - Read
zone and extra precision
easting values to the near-
est meter.
(8)
HOLD key - Depress to
return the INS to normal
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