ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-14. IMU Testing, Alignment, and Troubleshooting -- continued
Malfunction
Normal indication
indication/corrective action
Test procedure
Cable
Unit
W205P1
SPU 20J5
Buffer Unit 21J1
W205P2
SPU 20J9
W209P1
W209P2
Computer 1J3
W203P1
SPU 20J3
Tape Reader J1
W203P2
W212
W212P1
SPU 20J12
W201P1
SPU 20J1
115 VAC
W201P2
115 VAC
TTY Power
IMU 2J3
W4P1
PS 3J3
W4P2
IMU 2J1
W2P1
W2P2
Computer lJ1
ly. Press SPU ON switch-indicator SPU ON switch-indicator lights
to on
1Z. Set TTY printer MOTOR switch
to ON
1aa. Turn on + 28V power source
and set PS BATTERYand VE-
HICLE circuit breakers CB1
and CB2 to ON
PADS turns on
lab. Press PADS ON/OFF switch-
indicator to on
2. IMU TEST AND ALIGNMENT
NOTE
The IMU test program requires en-
try of data via the TTY. Data defini-
tions and formats are shown in table
test status and halt or initiate vari-
ous printouts are also given.
Use of the theodolite to measure
horizontal angles is described in
EXECUTE switch-indicator lights
2a. Press EXECUTE switch-indica-
tor to on
TTY prints out:
Change 1
4-85
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