Figure 2-2. Radio set simulator chassis terminal board (TB1), front view,
showing location of parts.
through 2-22, 4-12, and 4-14) to trace cir-
Each subassembly has a separate voltage and
cuits and further isolate the faulty part.
Take resistance readings only
b. If the voltage indications are normal,
with Multimeter, ME-26B/U. The dc source
take resistance measurements to isolate open
in some multimeters can destroy the transis-
or short circuits. Refer to the same figure as
tors by causing excessive current through
in a above. Refer also to the resistance and
continuity chart (para 2-4c) and to the dc re-
d. The dc resistances of the transformers in
sistance of transformers (c below).
the radio set simulator should be less than 10
ohms. An infinite reading indicates an open
c. Use the schematic diagrams (fig. 4-8 and
4-9) and the wiring diagrams (fig. 2-19