Install guide

ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-7. Computer Testing and Troubleshooting - Continued
Test procedure
Normal indication
indication/corrective action
Malfunction
After approximately 15 minutes TTY
prints out:
DEPRESS OFF, ENT. PADS
POWER SHOULD REMAIN
ON
NOTE
Perform step 2d immediately after
last TTY printout.
2d.
2e.
2f.
2g.
2h.
sequentially press
PADS
ON/OFF switch-indicator and
ENTER switch allowing at least
1 second between switches
Press EXECUTE switch-
indicator to off
Press EXECUTE switch-in-
dicator to on
Press EXECUTE
indicator to off
switch-
Sequentially press PADS
ON/OPF switch-indicator and
ENTER switch to turn off power
to the computer
NOTE
If operational tape is to be loaded for
core memory only, go to table 4-18
or 4-18.1. The solid state memory
already contains the operational
program therefore will not require a
reload. If a CDU or IMU test is to
be performed, go to table 4-11 or
4-14 (or 4-14.1), respectively. If
operational memory is to be installed,
proceed to step 2i.
2i. Set PS BATTERY and
VEHICLE circuit breakers CB1
and CB2 to OFF
Computer power should remain on.
PADS ON/OFF stays illuminated
EXECUTE switch-indicator goes off.
Computer fault indicator DS1 is
white
EXECUTE switch-indicator lights.
Computer fault indicator DS1 is set
to white and then reset to black
EXECUTE switch-indicator goes off
PADS ON/OPP switch-indicator goes
off
Computer power turns off. PADS
ON/OFF switch-indicator goes off:
Replace 1/0 discrete circuit card
assembly A9
Fault indicator DS1 does not set or
reset Replace computer fault
indicator DS1
PADS ON/OFF switch-indicator
remains on: Replace circuit cards
in sequence shown and reattempt
PADS ON/OFF indicator switch
test after each replacement I/O
discrete circuit card assembly A9
data buffer circuit card assembly
A6
Change 6
4-56.1/(4-56.2 blank)