Table 7-1. Direct Support Test Equipment.

Table 7-1. Direct Support Test Equipment.

Designation

Name

FSN

Common Name

AN/USM-210

Multimeter

6625-019-0815

VOM

AN/USM-281

Oscilloscope

6625-053-3112

Oscilloscope

PP-2309B/U

Power Supply, D-C

6130-752-2215

Power Supply

TK-105/G

Tool Kit

5180-610-8177

Tool Kit

AN/URM-127

Signal Generator

6625-783-5965

Audio Generator

Section III. TROUBLESHOOTING

b. Parts Location Diagrams. Appendix C contains

7-5. Troubleshooting Data

the parts location information for the processor and the

transceiver.

a. General. In addition to the troubleshooting

chart, other troubleshooting data is supplied as

c. Schematic Diagrams. Figures FO-3 (located at

described in the following paragraphs.

rear of manual) and 7-1 comprise the schematic

diagrams for the processor and the transceiver

respectively.

Figure 7-1. Transceiver Schematic Diagram

b. Check for grounds using a continuity meter

7-6. Cable Checks.

between each lead and the conduit or each lead and its

respective shield. Continuity should indicate infinity.

The procedure outlined in a through d below is given as

c. Check for opens by selecting one conductor in

a convenient method for checking for continuity or a

short of single conductor and multiconductor cables.

the cable and grounding it at one end to the conduit. At

a. Disconnect both ends of the cable to be tested.

7-2