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Page Title:
STE Microprocessor Circuit Card,AssemblyA2 Testing |
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 TM 11-6625-2937-13
f. STE Microprocessor Circuit Card,AssemblyA2
down. Observe that red ERROR indicator goes out and
Testing.
white READY indicator lights.
(5) Press digital tester TEST switch. Verify that red
(1) Remove circuit card A2 from control-interface
TEST indicator fights during test. Repeat test and verify
unit (para 5-15a) and insert it in MODULE TEST
that green PASS indicator lights at end of second test.
connector J6. Install a known good A2 in control-
(6) Remove program card from digital tester card
interface unit para 5-15b).
reader slot and insert A3 program card No. 2 in slot.
(2) Set equipment controls as follows:
(7) Set digital tester TEST RATE PER SEC switch
Control
Setting
to 200K and NUMBER OF TESTS switch to 2M.
Control-interface unit:
MODE SELECT
MODULE TEST STE
(8) Repeat steps (4) and (5).
POWER ON/OFF
ON
(9) Remove program card from digital tester card
Digital tester:
reader slot and insert A3 program card No. 3 in slot.
POWER
On (up)
(10)Repeat steps (4) and (5).
UUT POWER
On (up)
(11)Remove program card from digital tester card
TEST RATE PER SEC
2M
reader slot and insert A3 program card No. 4 in slot.
NUMBER OF TESTS
20M
(12)Repeat steps (4) and (5).
DISPLAY
PASS/FAIL
(13)Remove program card, turn off equipment
PROBE THRESHOLD
2V
power, and disconnect test setup.
(3) Insert A2 program card No. I in digital tester
h. Derived Timing No. 1 Circuit Card Assembly A4
card reader slot.
Testing. Refer to table 5-1, steps 10 through 13, for
(4) Press digital tester PROGRAM ENTER switch
testing derived timing No. 1 circuit card assembly.
down. Observe that red ERROR indicator goes out and
i. Derived Timing No. 2 Circuit Card Assembly A5
white READY indicator lights.
Testing.
(5) Press digital tester TEST switch. Verify that red
(1) Remove circuit card A5 from control-interface
TEST indicator lights during test. Repeat test and verify
unit (para 5-15a) and insert it in MODULE TEST
that green PASS indicator lights at end of second test.
connector J5.
Observe that control-interface unit TEST NUMBER
(2) Set equipment controls as follows:
display increments to 00.3.
Control
Setting
(6) Remove program card from digital tester card
Control-interface unit:
reader slot and insert A2 program card No. 2 in card
MODE SELECT
MODULE TEST STE
reader slot.
POWER ON/OFF
ON
(7) Set digital tester TEST RATE PER SEC switch
Digital tester:
to IM and NUMBER OF TESTS switch to IOM.
POWER
On (up)
(8) Press digital tester TEST switch. Verify that red
UUT POWER
on (Up)
TEST indicator lights during test. Repeat test and verify
TEST RATE PER SEC
IM
that green PASS indicator lights at end of second test.
NUMBER OF TESTS
2M
(9) Remove program card, turn off equipment
DISPLAY
PASS/FAIL
power, and disconnect test setup.
PROBE THRESHOLD
2V
g.
RAM/ROM Circuit Card, Assembly A3 Testing.
(3) Insert A5 program card in digital tester card
reader slot.
(1) Remove circuit card A3 from control-interface
(4) Press digital tester PROGRAM ENTER switch
unit (para 5-15a) and insert it in MODULE TEST
down. Observe that red ERROR indicator goes out and
connector J5.
white READY indicator lights.
(2) Set equipment controls as follows:
(5) Press digital tester TEST switch. Verify that red
Control
Setting
TEST indicator lights during test. Repeat test and verify
Control-interface unit:
MODE SELECT
MODULE TEST STE
that green PASS indicator lights at end of second test.
POWER ON/OFF
ON
(6) Remove program card, turn off equipment, and
Digital tester:
disconnect test setup.
POWER
On (up)
j. PIT and Test ROM Circuit Card Assembly, A6
UUT POWER
On (up)
Testing.
TEST RATE PER SEC
400K
(1) Remove circuit card A6 from control-interface
NUMBER OF TESTS
4M
unit (para 5-15a) and insert it in MODULE TEST
DISPLAY
PASS/FAIL
connector J5.
PROBE THRESHOLD
2V
(3) Insert A3 program card No. I in digital tester
card reader slot.
(4) Press digital tester PROGRAM ENTER switch
5-19
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