9-17SJ63 Manual
C53000-G1140-C120-1
Routine Checks and Maintenance 9
General comments about the maintenance activities to ensure the high reliability of the
7SJ63 are given in this section. Simple routine checks and a procedure for replacing
the battery are discussed. Troubleshooting advice is provided. A procedure for replac-
ing the power supply fuse is described. Some comments concerning the return of a
device to the factory are given.
9.1 General 9-2
9.2 Routine Checks 9-3
9.3 Maintenance 9-4
9.4 Troubleshooting 9-8
9.5 Corrective Action/Repairs 9-10
9.6 Return 9-14
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