Install guide

ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-6.3. Solid State Memory Loading Using Tape Reader, Part No. 877406-2 - Continued
Malfunction
Test procedure
Normal indication
indication/corrective action
2r.
2s.
2t.
2u.
2v.
Press REVERSE switch-in-
dicator to on
Press REVERSE switch-ii-
dicator to off
Lift tape read head cover and
remove tape from tape reader
Press EXECUTE switch-in-
dicator to on to start diagnostic
program
Compare printed checksum to
checksum written on the front of
the PADS solid state program
tape number 868182-X
REVERSE switch-indicator lights. Tape
rewinds and stops at beginning of
reel
REVERSE switch-indicator goes off
EXECUTE switch-indicator lights
TTY prints out:
PADS SOLID STATE DIAGNOS-
TIC ALIGNMENT PROGRAM
PROGRAM CHECKSUM XXXXXX
SELECT TEST MODE
Checksums are equal
Checksum is incorrect: Inspect tape
NOTE
If a computer test is required go to
table 4-7. If a computer test is not
required press EXECUTE switch-
indicator to off, sequentially press
PADS ON/OFP switch-indicator and
ENTER switch to turn off computer;
and go to table 4-11 or 4-14.1 to per-
form a CDU or IMU test, respec-
tively.
reader and tape for dirt. Clean as
required
Reload complete solid state program
If new checksum is correct, continue
with test. If new checksum is same
as the old (wrong) checksum
Perform PADS test set self-test
and take indicated corrective ac-
tion
Replace computer card assemblies in
the order shown in step Ii and
reload tape after each card is re-
placed
If new checksum differs from the old
(wrong) checksum Adjust tape
reader and reload tape. Thorough-
ly clean or replace tape
.
Change 6
4-55