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Figure 2-21. Radio set simulator, power converter 1A3, wiring diagram.
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TM-11-6625-564-45 Maintenance Kits Electronic Equipment MK-731/ARC-51X Manual
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Resistance and Continuity Measurements - TM-11-6625-564-450057
TM 11-6625-564-45
Figure 2-22. Radio set simulator, transient blanker 1A4, wiring diagram.
Section III. TROUBLESHOOTING TEST SET,
RADIO T S - 1 9 6 2 / A R C - 5 1 X
a. Disconnect all cables from the test unit.
2-7. Resistance and Continuity
Measurements
b. Remove the dust cover from the test unit.
Make the resistance and continuity meas-
c. Set the switch, or switches, shown in the
urements indicated below.  If results other
Switch column of the chart (c below) to the
than those indicated are obtained, isolate the
position shown in the Position column. Con-
faulty part by resistance measurements before
nect the dc voltmeter between the terminals in
making tests or applying power.
the Terminals column. Refer to figure 4-
Cautions :
10, test unit schematic diagram, and figure 4-
1. This equipment is partially transistor-
15, test unit wiring diagram, and to the figures
ized. Observe all precautions to prevent trans-
referenced in the Figure column for terminal
istor damage. Make resistance measurements
and component location. All resistance read-
in the test unit only as specified.
ings should be within 10 percent of those
2. Do not attempt removal or replacement
shown in the Resistance column. These meas-
of parts before reading the instructions given
urements are to be made before applying
power to the unit to insure complete chassis
Note: Unless otherwise indicated, references to test
wiring continuity and to localize the trouble
points, jacks, connectors, and switches apply to the
test unit.
before detailed troubleshooting is performed.
45

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