3-9. Periodic Preventive Maintenance Checks and Services Chart
TROUBLESHOOTING
Section III.
until an abnormal indication or result is observed.
3-10. General Troubleshooting Techniques
If an abnormal indication is observed, note the
The troubleshooting procedure for Direction
sequence number and refer to the corresponding
Finder Set AN/ARN-83 is based on the operational
sequence number in the troubleshooting chart (para
checks included in the intermediate preventive
3-11). Perform the checks and corrective measures
rnaintenance checks and services chart (para 3-5).
indicated in the troubleshooting chart. If the recom-
To troubleshoot the direction finder set, perform
mended corrective measures do not correct the
all the operational checks starting with sequence
trouble, higher level maintenance is required.
No. 5 in the chart and proceed through the sequences
3-11. Troubleshooting Chart
a. Replace control unit (para 3-12).
receiver (para 3-13).
(para
3-13).
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