TM 11591522613
CHAPTER 6
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. GENERAL
6-1. Color Codes
set up shown in figure 6-4.
__________
Color codes for standard resistors, inductors,
WARNING
and capacitors are shown in figure FO-1.
Be careful when making voltage measurements.
Use insulated test probes and do not touch any
6-2. Voltage Measurements
internal part of the F-1461/VRC while it is en-
ergized.
The voltage readings given in table 6-1 are
made at connectors J71 and J72 using the test
Table 6-1. Voltage Readings
Test prods
Indication
Test condition
negative
positive
(volts dc)
Ground
J72-C
+50.0
Circuit breaker ON or OFF
Ground
J71-C
0
Circuit breaker OFF (fig 6-4).
Ground
J71-C
36.0 +2.0
Circuit breaker ON (fig 6-4).
Ground
J72-C
25.5
Circuit breaker OFF (fig 6-4).
Ground
J71-C
0
Circuit breaker OFF (fig 6-4).
Ground
J71-C
25.5 +0
-1.5
Circuit breaker ON (fig 6-4).
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