Fault Isotation Test

Table 3-2. Radio Set Minimum Performance Test--Continued

3-7. Fault Isotation Test

Figure 3-4 and 3-6 show the equipment setups necessary

to perform the fault isolation tests.

Table 3-3 is a fault isotation test for the radio set. By us-

ing these tests and the associated test equipment, the

3-9. Test Point Locations

radio set may be fault isolated to a defective module. If

Figures 3-7 and 3-8 show the test point locations used in

the problem cannot be located to a defective module or

fault isolation testing. Test point connections are made

other DS level maintenance, then higher level mainte-

by a special rf cable assembly 565461-801 (part of Main-

nance is required. In all cases, after a defective module

tenance Kit MK-( ) /PRC-68). In all cases where this

has been replaced or a repair made to the radio set, the

minimum performance test (table 32), or minimum per-

cable is used, the center conductor is connected to the

formance check using the test set (table 2-4), must be

test point called for, and the shield is connected to the

performed to ensure the radio set is fully operational.

nearest ground point on the printed circuit board. The

BNC connector end mates with the applicable test

3-8. Fault Isolation Test Equipment Set-

equipment unit, when called for.

ups

3-6