Install guide

ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-14. IMU Testing, Alignment, and Troubleshooting – Continued
Malfunction
Test procedure
Normal indication
indication/corrective action
2b. Compare printed checksum
written on the front of the diag-
nostic-alignment tape or solid
state program tape
2c. Type IMU to select IMU auto-
matic alignment and test se-
quence
2d. Verify that the printed serial
number matches the serial num-
ber of the IMU under test and
the checksum matches the
checksum on the IMU alignment
data tape
2e. Type RDY when 45° (±10
o
)
heading request has been com-
pleted
PADS DIAGNOSTIC ALIGN-
MENT PROGRAM or
PADS SOLID STATE DIAGNOS-
TIC ALIGNMENT PROGRAM
PROGRAM CHECKSUM XXXXXX
SELECT TEST MODE
Checksums are equal
TTY prints out:
IMU
SER NO XXXXX DATE XXXXX
CHECKSUM XXXXXX
MOVE IMU TO APPROX 45 DEG
HEADING
WHEN DONE TYPE: RDY
Data matches
TTY prints out:
Checksum is incorrect: Refer to step
3k of table 4-6 or step 2
U of
table 4-6.2
NOTE
From this step forward, the TTY
may print out any of the malfunction
messages listed in table 4-17. Take
the corrective action shown in table
4-17.
Reload IMU alignment data tape
NOTE
The program will accept all data on
one line, thus if the operator makes
a mistake prior to typing RDY while
entering data via the ‘M’Y, he should
hit the carriage return key and reen-
ter the data. If the diagnostic pro-
gram does not recognize the entry as
valid, the TTY prints out: IM-
PROPER DATA ENTRY. The oper-
ator should reenter the data.
4-86
Change 6