TM 11-6625-2950-1
5-9. Indicator Troubleshooting
shorting plugs when the boards are removed
from the indicator. A grounded strap should be
worn when handling these boards. All tools
ID-1961A/ARC-164(V). The operation of the indicator
should be grounded. Boards should be stored
under normal conditions will determine the nature of the
and transported with dummy shorting plugs and
malfunction (fig. 2-5). A key to the use of the diagram is
in conductive bags or in conductive foam. Do
contained as part of the diagram. Figures 5-2 and 5-3 are
not use nylon, teflon, or plastic tools or brushes;
provided to aid in locating test points.
do not wear nylon clothing. Never connect a
board to test equipment with power applied.
CAUTION
Use special care when handling the magnetic
wheel drums. If the drums are bent, the indicators
5-10. Attenuator Troubleshooting
cannot operate properly.
Special precautions must be taken when handling
Troubleshooting the attenuator is limited to inspection
the four indicator boards as they contain metal
and replacement of the item.
oxide semiconductor (MOS) devices which can