e. Test procedure 50. With the CX-13062/U disconnected from the AUDIO
jack on the KY-57, the meter indicates infinite ohms (Test procedure 48.).
To check for a short in the KY-57, CX-13061/U or J-3513/U.
Reconnect the CX-13062/U to the KY-57 AUDIO jack and then remove
the CX-13061/U from the KY-57 RAD jack. (Figure 80)
Measure continuity between pins C and A J5 (TP1).
If the meter indicates zero ohms, the KY-57 is the bad item.
If the meter indicates infinite ohms, reconnect the CX-13061/U to
the KY-57 RAD jack and disconnect the other end of the CX-13061/U
from jack J3 J-3513/U.
Measure continuity at pins C and A J5 (TP2).
If the meter now indicates zero ohms, the CX-13061/U is bad.
If the meter indicated infinite ohms, the J-3513/U is bad.
Figure 80.
RT keying, continuous keying (lower loop).
93
Previous Page
