CHAPTER 7 GENERAL SUPPORT TESTING PROCEDURES

TM 11-6625-542-14-1

CHAPTER 7

GENERAL SUPPORT TESTING PROCEDURES

testing procedures given in this chapter are listed below.

7-1. General

a. Electronic Voltmeter AN/USM-98.

a. Testing procedures are prepared for use by

b. Variable Transformer CN-16/A.

electronics field maintenance shops and electronic

c. Oscilloscope AN/USM-281A.

service organizations responsible for general support of

d. 53-ohm termination connector.

electronic repaired equipment to determine the

e. Digital Readout Electronic Counter AN/USM-

acceptability of repaired equipment. These procedures

207.

set forth specific requirements that repaired equipment

must meet before it is returned to the using organization.

7-3. Modification Work Orders

These procedures may also be used as a guide for

The performance standards listed in the tests tables 7-1

testing equipment that has been repaired at general

through 7-7 are based on the assumption that all

support maintenance if the proper tools and test

modifications have been performed. A listing of current

equipments are available.

modification work orders will be found in DA Pam 310-7.

b. Comply with the instructions preceding each

7-4. Physical Tests and Inspection

table. Perform each step in sequence. Do not vary the

a. Test Equipment and Materials Required.

sequence.

For each step, perform each specific

None.

procedure and verify it against its performance standard.

b. Test Connections and Conditions. None.

7-2. Test Equipment and Material Requirements

All the test equipment required to perform the

Table 7-1. Physical Tests and Inspection

Control Settings

Step No.

Test equipment

Equipment under test

Test procedure

Performance standard

a. Inspect case and chassis

a. There should be no

None .................

Any position ..............

for damage, missing parts

evidence of damage or

and condition of paint.

parts missing. External

painted surfaces should

not show bare metal.

Panel lettering will be

legible.

b. Inspect all controls and

b. Screws, bolts and nuts will

mechanical assemblies

be tight-none missing.

for missing screws, bolts

and nuts.

c. Inspect all connectors,

c. No loose parts or damage;

sockets, receptacles for

no missing parts.

looseness, damage, or

missing parts.

a. All pushbuttons should be

None .................

Any position ..............

a. Depress all front panel

push buttons.

capable of depressing and

releasing freely without

restriction.

b. Inspect all front panel

b. All jacks should be free of

jacks.

any obstruction that would

restrict the normal

insertion of the proper

plug.

the AN/USM-98 as indicated in TM 11-6625-438-15

7-5. Power Supply Voltage Measurements

prior to using.

a. Test Equipment and Materials Required.

Electronic Voltmeter AN/USM-98.

Test Connections and Conditions. Calibrate

7-1