Table 3-6. Harness-To View Index - Electrical wiring
Note. This index provides information to support the troubleshooting routines.
All harness, cable and lead assemblies are listed in numerical order. The circuit
numbers are also listed to facilitate the location of a view or harness assembly.
Extensive wiring assemblies are identified on more than one view.
Harness No. On
Locational View
Electrical Schematic
Figure No
Circuit No.
10916916
415C and 415D
10951609
3-12
10951611
3-12
415E
10951612
3-12
415E
or openings). The following procedure must be followed
3-47.
Method
of
Electrical
to perform the continuity tests:
Troubleshooting.
a. Place the SCALE SELECTOR OUTPUT-A. C.-
3-48. General. Direct current electrical circuits and
D.C. switch in the D.C. position.
components are tested by checking continuity and
b. Rotate the range selector switch to the required
measuring resistance to determine if the circuit or
range.
component under test has a continuous electrical path
(1) R x 1 to measure resistance between 0 and
through the cables and units connected between the two
2,000 ohms.
test points. Multimeter 6625-543-1438 (figure 3-14)
(2) R x 100 to measure resistance between 0
indicate on preselected, calibrated scales, the resistance
and 200,000 ohms.
of the circuit or component being tested. When using
(3) R x 10,000 to measure resistance between
the multimeter for testing a multiple-jointed conductor,
0 and 20 megohms.
isolate each section of the conductor to determine the
c. Plug the black ad into the jack marked
location of the open or short circuit.
COMMON and the red lad into the jack marked "+".
3-49. Resistance Tests.
All electrical circuits
Short the ends of the leads together and turn the ZERO
possess some resistance. Some resistances, however,
OHMS knob until the pointer is at zero.
are so small and others so large that they cannot be
read on the same scale. When a reading, using is
obtained, it indicates the circuit has continuity (no break
3-25
