VERIFICATION OF AM-7239E

TB 11-5820-890-30-6

5A1W4

Tiedown

5A1W8

Strap

Figure 1. RF Cable Assembly (5A1W8)

5. VERIFICATION OF AM-7239E.

If the GPS-A or GPS-B connectors (5A1J14 and 5A1J13) are removed, the AM-7239E/VRC will fail all

AN/GRM-122 tests under LIT 813 (GPS checks). These are the last series of tests performed in the go chain.

These tests consist of Logic Level throughput and continuity checks between 5A1J12, 5A1J13, 5A1J14, and

5A1J15.

a. After completion, run the AM-7239E/VRC on the GRM-122. When prompted to connect test cable

connectors to 5A1J13 and 5A1J14, disregard and proceed with the test.

b. Disregard all failures reported under LIT 813 (GPS Checks).

c. Return AM-7239E/VRC to service.