Section V. DIRECT SUPPORT TESTING PROCEDURES

TM 11-6625-2937-13

Section V. DIRECT SUPPORT TESTING PROCEDURES

(3) Detergent.

5-23. General

(4) Fine bristle brush.

This section contains testing and inspection procedures

(5) Fine sandpaper.

for use by direct support maintenance personnel to

(6) Tool Kit, Electronics Equipment TK-105/G.

determine whether the performance of repaired

b. Procedure. Inspect the components of the test

equipment is satisfactory for return to users. Procedures

set group as described in table 5-3.

for performing physical inspection, unit functional tests,

WARNING

and cable continuity checks are given. Follow the

procedure steps in the order given and set all controls

Adequate ventilation should be provided while

accurately when performing these procedures.

using

TRICHLOROTRIFLUOROETHANE.

Prolonged breathing of vapor should be avoided.

The solvent should not be used near heat or

5-24. Tools and Test Equipment Required for

open flame; the products of decomposition are

Direct Support Testing

toxic

and

irritating.

Since

The tools and test equipment required for direct support

TRICHLOROTRIFLUOROETHANE

dissolves

maintenance are the same as those listed in paragraph

natural oils, prolonged contact with skin should

5-7.

be avoided. When necessary, use gloves which

the solvent cannot penetrate. If the solvent is

5-25. Physical Tests and Inspection

taken internally, consult a physician imrnediately.

a. Tools and Materials Required.

(1) Cleaning compound (Trichlorotrifluoroethane).

(2) Cleaning cloth.

Table 5-3. Physical Inspection Procedure

Item to be inspected

Procedure

Standard

Inspect interior and exterior surfaces for dust, All surfaces free of dust, dirt, grease or fungus

Interior and exterior surfaces.

dirt, grease or fungus. Clean all surfaces as

required.

Painted surfaces

Inspect interior and exterior surfaces for Painted surfaces free of chipped areas and all

chipped paint or corrosion.

surfaces corrosion free.

Wiring and insulation.

Inspect internal wiring for breaks and frayed or No broken wiring and insulation undamaged.

damaged insulation.

Connectors or sockets.

Inspect connectors for broken pins or sockets Connector pins or sockets unbroken and

and damaged threads.

treads undamaged

Inspect components and assemblies for All components and assemblies complete and

Cornponents and assemblies

breakage completeness and indications of undamaged.

overheating.

to the depot for repair. The procedures should also be

5-26. DS Testing of Control-interface Unit Following

helpful in cases where multiple faults exist in the unit.

repairs, functionally test the control-interface unit as

b. Toots and Test Equipment Required. The

described in paragraph 5-7 and table 5-1.

tools and test equipment required for circuit card go/no-

5-27. DS Testing of Digital Tester Following repairs,

go testing are listed below.

functionally test the digital tester as described in TM 11-

Test equipment

Common name

6625-2591-13.

5-28. Cable Assembly Testing Cable assembly

Test Set, Electronic Systems

Control-interface unit

testing consists of making continuity checks to isolate a

TS-3796/- UKM-4

defective wire path or cable assembly.

Test Set, Electronic Systems

AN/UYM-7

Digital tester

a. Test Equipment and Materials.

Multimeter

Data recording-programmed

AN/USM-223.

magnetic cards as follows

b. Test Connections and Conditions.

None

SM-A-942475

A1 program card

required.

SM-A-942480-1

A2 program card no.1

SM-A-942480.2

A2 program card no 2

c. Initial Test Equipment Settings. None required.

SM-A-942485-1

A3 program card no 1

d. Procedure. Use Multimeter AN/USM-223 and

SM-A-942485-2

A3 program card no.2

wire lists given in tables 5-4 through 5-8 when performing

SM-A-942485-3

A3 program card no 3

cable assembly testing.

SM-A-942485-4

A3 program card no.4

SM-A-942510

A5 program card

5-29. Circuit Card Go/No-Go Testing

SM-A-942495-1

A6 program card no.1

a. General. The test procedures in the following

SM-A-942495-2

A6 program card no 2

subparagraphs are used as an aid in isolating faults in

SM-A-942495-3

A6 program card no.3

the control-interface unit to a particular circuit card,

SM-A-942520-1

A7 program card no 1

SM-A-942520-2

A7 program card no 2

chassis mounted part, or to circuit card assembly rack I

A2.

These procedures will also provide positive

identification of faulty circuit cards prior to returning them

5-16