Install guide
ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4- 14.1 IMU Testing, Alignment,
and Troubleshooting Using Tape Reader, Part No. 877406-2 -
Continued
Malfunction
Test procedure
Normal indication
indication/corrective action
NOTE
Do not move PADS again until in-
structed to do so.
2f.
2g.
2h.
Type XXX XX XX.X RDY for
degrees, minutes, and seconds of
latitude. Leave a space between
each numerical grouping
Type XXX.X RDY for correct
elevation in feet
Type XXXX RDY for
Julian data
2i. Type correct IMU serial
in format XXXX RDY
correct
number
NOTE
TEST NUMBER X IN PROGRESS
000000
000000
will print out periodically
during test to indicate the start of a
subtest. The time since start also
may be printed.
If a failure occurs, the number will
be nonzero and IMU, CMP, or PSU
FAILURE will print. A set of failure
subcodes will then be printed which
provide useful information for depot
repair of the IMU and computer.
Replace or repair the computer or
power supply as appropriate. Return
a failed IMU to depot with a copy of
the TTY printout.
TTY prints out:
RDY
ENTER ELEVATION: (FT) RDY
TTY prints out:
RDY
ENTER DATE: (JULIAN) RDY
TTY prints out:
RDY
ENTER SER NO: (DIGITS) RDY
TTY prints out:
RDY
ALIGNMENT PROCEEDING
IF THEODOLITE WILL NOT BE
USED, TYPE: BYP
2j. Type BYP if theodolite will not TTY prints out:
be used
BYP
NOTE
TTY prints out:
SERIAL NO INCORRECT:
Load correct IMU alignment
tape
data
There are 10 subtests, but one or more will be deleted depending on the use of the theodolite.
Change 5
4-90.7