PIT and Test ROM Circuit Card Assembly, A6 Testing

TM 11-6625-2937-13

(2) Set equipment controls as follows:

(6) Remove program card from digital tester card

reader slot and insert A6 program card No. 2 in slot.

Control

Setting

(7) Set digital tester TEST RATE PER SEC switch

Control-interface unit:

to 2M and NUMBER OF TESTS switch to 4M.

MODE SELECT

MODULE TEST STE

(8) Repeat steps (4) and (5).

POWER ON/OFF

(9) Set digital tester DISPLAY switch to PROBE.

Digital tester:

(10)Monitor the following A6 integrated circuit pins (fig.

POWER

On (up)

5-6) using digital tester probe. At each test point, press

UUT POWER

On (up)

TEST switch and verify that at the termination of the test

TEST RATE PER SEC

200K

the proper count is displayed on digital tester display.

NUMBER OF TESTS

Test point

Count

DISPLAY

PASS/FAIL

PROBE THRESHOLD

U22-1

3154

U22-13

4162

(3) Insert A6 program card No. I in digital tester

U7-1

card reader slot.

U7-2

(4) Press digital tester PROGRAM ENTER switch

U7-3

down. Observe that red ERROR indicator goes out and

(11) Remove program card, turn off equipment

white READY indicator lights.

power, and disconnect test setup.

(5) Press digital tester TEST switch. Verify that red

TEST indicator lights during test. Repeat test and verify

that green PASS indicator lights at end of second test.

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