3-2
TM109902 (5/03)
USE OR DISCLOSURE OF DATA CONTAINED ON THIS PAGE IS SUBJECT TO THE
RESTRICTION ON THE TITLE PAGE OF THIS DOCUMENT
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C
O M M A N D
S
Y S T E M S
D
I V I S I O N
G. Filters and Inductors
Inspect for damage to body or casing and for loose, broken, or corroded terminal connections.
Check for secure mounting to chassis.
H. Transformers
Inspect for damage to case and for signs of excessive heating; also check for loose, broken or
corroded terminal connections.
I. Transistors
Inspect for damage to body or casing and for secure and appropriate attachment into their
respective sockets.
J. Terminal Connections, Soldered
(1) Inspect for cold soldered or rosin joints. Bad joints can be recognized by a dull, porous
appearance.
(2) Check for excessive solder, insufficient solder, or solder splashes resulting from a previous
repair.
(3) Check for corrosion at the terminal connections.
3.3 CLEANING
Do not use cleaning solvent on electrical parts.
cleaning solvent can soften and permanently
damage insulating materials.
Wipe the exterior of the unit with a lint-free cloth dampened with an approved cleaning solvent
conforming to Federal Specification PD-680. Remove any foreign matter from the interior using a clean
soft-bristled brush and/or a clean, dry, compressed air stream at a pressure of not more than 15 psi.
3.4
USE OF PROPER TEST EQUIPMENT
Frequently semiconductor devices and integrated circuits, are damaged by accidentally applying too
much voltage or current to the device elements. These causes for failure can be reduced by using
proper test equipment.
A. Multimeters with sensitivities of less than 5000-ohms-per-volt should never be used. Either a
20,000 ohms-per-volt multimeter or a vacuum tube voltmeter should be used.
CAUTION
The document reference is online, please check the correspondence between the online documentation and the printed version.
