21. A-RT AUDIO OUTPUT CIRCUIT.
a. Situation 10. When performing the A-RT AUDIO OUTPUT EPC step 6, the
handset is connected to J-3513/U J5 (A-RT is ON). The A-RT squelch is set
to OLD OFF, but there is no rushing heard in the handset. This indicates
the A-RT AUDIO OUTPUT circuit is bad. This system may be caused by a short
or an open within the system.
Trace the A-RT audio output circuit and
identify the possible bad items (Figure 75. Issued as adjunctive material.).
(continued on next page)
Figure 75.
A-RT AUDIO OUTPUT (possible bad items).
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