TM 11-6625-3053-14
Refer to the Schematic Diagram AN/USM 213(FO-2), all functional schematics, and wiring diagrams. Read Section II
circuit descriptions since they will help you in locating the defective component when you troubleshoot the unit.
6-14. ELECTRICAL CHECK PROCEDURES.
INITIAL SETTINGS
Before starting the electrical check procedure, set the AN/USM-213B controls as outlined in paragraph 2-4.
Table 6-1.
ELECTRICAL CHECKS PROCEDURES INDEX
TITLE
STEP NO.
Application of Power
1
Delay Circuit Check
2
Power Set Check
3
4
Maximum Uncalibrated RF Output Check
5
Minimum RF Monitor Uncalibrated Power
6
Attenuator Accuracy Check
7
Internal Square Wave Check
8
External Pulse Check
9
External AM Modulation Check
10
On-Off Ratio Check
11
Leveled Power Output Check
12
6-14