Section V. DS TESTING PROCEDURES

TM 5-6350-262-14/9

NAVELEX 0967-466-9090

TO 31S9-4-32-1

Section V. DS TESTING PROCEDURES

second. Turn the oscilloscope on.

7-15. General

(6) Turn alarm (I) and alarm (L)

This section contains performance standard test

switches SW1 and SW2 of the test set to the off

procedures for use by direct support maintenance

position.

personnel to determine that the performance of the

(7) Turn power supply on.

repaired alarm and status modules are satisfactory for

(8) Conduct performance standards as

installation. These procedures are based on the use of

described in table 7-1.

a field-manufactured test fixture (fig. 74) and the test

equipment listed in paragraph 7-16.

Test Preparation (Status Module only).

See figures 7-4 and 7-5.

7-16.

Performance Standards.

(1) Turn on one of the dc power

supplies and set it for + 20 V dc output. Turn the power

Test Equipment.

supply off and connect it to the + 20 V dc input jacks of

the test set (J15 and J16) (fig. 74).

Instrument . ..................... Yodel/manufacturer

Test Fixture .................... Field Manufacture (fig. 74)

(2) Remove the right hand cover (2, fig.

DC Power Supply............. Preston Seientifidc-MOD101 (2) or

C-2) of the status module.

equivalent

(3) Connect J1 of the test set to P1 of

Multimeter ....................... Simpson 260 (2) or equivalent

the status module.

Oscilloscope .................... Tektronix 422 or equivalent

(4) Set the Simpson/260 meter to the

500 ma scale and connect it to the test jacks on the test

Test Preparation (Alarm Module only).

set (J9 and J10).

See figure 74 and 7-5.

(5) Connect a ground lead from the

(1) Turn on the dc power supply and set

oscilloscope to one of the grounded jacks provided on

it for +20 V dc output. Turn the power supply off and

the test set. Attach a X10 probe to input 1 of the

connect it to the + 20 V dc input jacks of the test set

oscilloscope. Set the oscilloscope to Channel 1 on the

(J15 and J16) (fig. 7-4).

vertical selector switch. Set the triggering controls to

(2) Remove the right hand cover (2, fig.

Channel 1, ac, positive slope, and automatic. Set the

C-1) of the alarm module to be tested.

Channel attenuator to 0.2 volts/division and the time

(3) Connect J1 of the test set to P1 of

base to 0.5 second. Turn the oscilloscope on.

the alarm module.

(6) Turn alarm (I) and alarm (L)

(4) Set the Simpson/260 meter to the

switches, SW1 and SW2 of the test set to the off

100 ma scale and connect it to the test jacks on the test

position.

set (J9 and J10).

(7) Turn the ac power switch SW4 of

(5) Connect a ground lead from the

the test set to on position.

oscilloscope to one of the grounded jacks provided on

(8) Turn the access/secure switch SW3

the test set. Attach a X10 probe to input 1 of the

of the test set to the access position.

oscilloscope. Set the oscilloscope to Channel 1 on the

(9) Turn power supply on.

vertical selector switch. Set the triggering controls to

(10) Conduct the performance standards

Channel 1, ac, positive slope, and automatic. Set the

as described in table 7-2.

Channel attenuator to 0.2 volts/division and the time

base to 0.5

7-10