Note About The Battery Terminal - Sony hdw-730 Operation Manual

6-2-5 Note About the Battery Terminal

The battery terminal of this unit (the connector for battery packs and AC
adaptors) is a consumable part.
The unit may not operate properly if the pins of the battery terminal are
bent or deformed by shock or vibrations, or if they become corroded due
to prolonged outdoor use.
If you notice bending, deformation, or surface corrosion, contact your
dealer or a Sony service representative as soon as possible to have the
battery terminal replaced.
Periodic inspections are recommended to keep the unit working properly
and to prolong its usable lifetime.
Contact your dealer or a Sony service representative for more
information about inspections.
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Chapter 6 Maintenance