ment this procedure and to determine the defective
89. Troubleshooting Chart
stage. Once the trouble hae been localized to a
The following chart is supplied as an aid in
stage or circuit, a tube check and voltage and
locating trouble in the transceiver and power
resistance measurement of this stage or circuit
supply. This chart lists the symptoms which the
should be enough to isolate the defective part.
repairman observes , either visually or audibly,
Normal voltage and resistance measurements are
while making a few simple tests. This chart also
given in figures 82 through 101. Repair and
indicates how to localize trouble to the motor
adjustment of the optical and mechanical com-
circuit, voltage regulator circuit, signal circuits,
ponents of the transceiver are discussed in
and optical or mechanical abnormalities. The
signal-tracing charts then can be used to supple-
