Install guide

ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-6.1
Computer Diagnostic/Alignment Program Using Tape Reader, Part No. 877406-2—Continued
Malfunction
Test procedure
Normal indication
indication/corrective action
2k. Type TTY character set
2l.
2m.
2n.
Press TTY LTRS key
Press TTY CAR RET key to
terminate test
Press EXECUTE switch-
indicator to off to halt
computer
NOTE
For core memory diagnostic pro-
gram loading, proceed to step 3a. If
memory type is solid state, proceed
to step 2o.
2o.
2p.
2q.
2r.
2s.
3.
Set tape reader FAST/SLOW
switch to FAST
Press REVERSE switch-
indicator to on
Press REVERSE switch-
indicator to off
Lift tape reader read head
cover and remove tape from
tape reader
Refer to table 4-6.3 for solid
state
memory
loading
instructions
DIAGNOSTIC PROGRAM
LOAD (Core Memory Only)
NOTE
The above printout indicates
memory type is solid state. Con-
tinue with diagnostic program load,
step 2K.
Each character typed is printed
TTY prints out:
CPU OP-CODE TEST PASS
MEMORY TEST PASS
CPU TEST PASS
NOTE
Memory clear routing will begin
automatically. When completed,
TTY will print out:
LOAD NEXT TAPE SECTION
EXECUTE switch-indicator goes
off
REVERSE switch-indicator lights.
Tape rewinds and stops at begin-
ning of reel
REVERSE switch-indicator goes
off
Same as step 2j
No printout within 2 seconds or
TTY prints out:
CPU OP-CODE TEST FAIL
Same card replacement as step 2b
TTY prints out:
MEMORY TEST FAIL
Same card replacement as step 2h
EXECUTE switch-indicator re-
mains on:
Same card replacement as step 2b
4-54.8 Change 1