Figure 2-9. Typical standard logic card test connections

TM 11-6625-2937-13

DEC or STE) and observe MODULE TEST ON indicator

(11) Press either TEST switch-indicator on

lights.

digital tester to down position and observe indicator

(7) Insert applicable program card in card

lights.

reader slot of digital tester.

(a) Observe TEST NUMBER display on

(8) Press PROGRAM ENTER switch-indicator

control-interface unit for proper program card test.

on digital tester to down position and observe that

(b) Observe that MODE IN ERROR

PROGRAM ENTER indicator lights. Observe READY

indicator does not flash.

indicator on digital tester lights after approximately 10

seconds and PROGRAM ENTER indicator goes off.

control-interface unit fights during program card test and

(9) Set TEST RATE PER SEC switch on digital

goes out at end of test.

tester in accordance with program card test.

(d) Observe PASS/FAIL indicator on

(10) Set NUMBER OF TESTS switch on digital

digital tester lights PASS or FAIL.

tester in accordance with program card test.

(12) Set control-interface unit and digital tester

controls to their OFF position.

Figure 2-9. Typical standard logic card test connections

g. Shutdown Procedure. To shut the test set

of preventive maintenance (table 3-1) should be

increased to daily to avoid equipment breakdown.

group down after the desired tests have been performed

(2) Extreme dry heat. When the test set group

proceed as follows:

is operated in extreme dry heat over prolonged periods

(1) Set all controls on control-interface unit and

of time, connecting cables and connectors should be

digital tester in accordance with table 2-4.

inspected weekly for cracks or breaks.

(2) Remove all connecting cables and

(3) Extreme cold. When the test set group Is

adapters, except input power cables, that were used

during tests. Stow these accessories in the cover of the

being operated in low temperatures (arctic climates) over

test set case or in a convenient work bench drawer or

prolonged periods of time, the frequency of preventive

cabinet.

maintenance (tables 3-1 and 3-2) should be increased to

daily to avoid equipment breakdown.

2-6.

Operation Under Unusual Conditions

(4) Salt air and sea spray. The test set group

a. Operation Under Extreme Environmental

should not be exposed to these conditions over

Conditions. The test set group is designed as an all

prolonged periods of time as rust, corrosion and

weather equipment. However, extreme temperatures

component breakdown may result

and weather conditions can affect equipment

(5) Sandstorms or duststorms. Dust or sand

performance.

are major problems in desert areas Frequent dusting and

(1) Extreme moist heat. When the test set

clean-

group is operated in extreme moist heat (tropical

climates) over prolonged periods of time, the frequency

2-12