Section IV. TROUBLESHOOTING
Z Troubleshooting at the organizational maintenance level requires you to locate any trouble
a s quickly as possible.
Once trouble is located, repair or replace the part if you are authorized to do so or deter-
mine if a higher category of maintenance is required. Repairs by organizational mainte-
nance are limited by tools, test equipment and replacement parts allocated to that level.
Before using troubleshooting table (table 2-2), check your work order and
talk to the operator, if possible, for a description of symptoms if trouble
occurred while equipment was in operation.
Troubleshooting Table (Table 2-2)
Table 2-2 lists common problems that may occur during operation or maintenance of the
Z Follow these steps to use table 2-2:
Z Find the problem under MALFUNCTION.
Z Check for possible causes of the problem under TEST OR INSPECTION.
Use the procedures under CORRECTIVE ACTION to correct the problem.
This manual cannot list all trouble that may occur, nor everything to check nor all possible
procedures to correct troubles listed. If trouble is not listed in table 2-2 or is not corrected
by the procedures under CORRECTIVE ACTION, notify your supervisor.
Dangerous voltages exist in this equipment. For some of the following
procedures, you must remove the modem chassis from its case. Set ON/OF F
circuit breaker switch on front of panel to OFF before removing chassis,
then follow instructions in paragraph 2-9 for removal.