ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Malfunction
indication/corrective
action
Normal indication
Test procedure
NOTE
The Test Procedure column contains the test operation to be performed. The Normal Indication column contains
the desired test set or teletype response to the test operation. The malfunction indication(s) and corrective action(s)
are listed in the third column.
All switches, switch-indicators, and indicators called out in the procedure are located on the SPU, unless otherwise
indicated.
To change a computer card assembly, perform the following in order given:
a. Press EXECUTE switch-indicator to off.
b. Press ON/OFF and ENTER switch-indicators.
c. Set PS BATTERY and VEHICLE circuit breakers CB1 and CB2 to OFF.
NOTE
If memory unit is replaced, reloading with proper program maybe necessary.
d. Change card assembly or memory unit. (Refer to paragraphs 3-15a or 3-15b.)
e. Set BATTERY and VEHICLE circuit breakers CB1 and CB2 to ON.
f. Press PADS ON/OFF switch-indicator to ON.
g. Repeat the test.
Check that tape reels are not deformed and that tape runs smoothly through tape reader head.
1. TEST SETUP
1a. Mate computer to an opera-
tional power supply as necessary
NOTE
For memory, CDU, and IMU testing,
use the general support dedicated
computer. For computer testing, use
the suspected defective computer.
1b. Install memory unit in computer
as necessary
NOTE
For computer and CDU testing, use
the memory unit from the general
support dedicated test computer, If
a memory unit failure is suspected
from direct support troubleshooting
(checksum error, memory test fail,
or computer does not operate) use
t h e suspected defective memory
unit. For IMU testing, use the mem-
ory unit which will be dedicated to
that IMU.
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