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17. Damage Requiring Service - Unplug the unit from the outlet and refer servicing to
qualified service personnel under the following conditions:
a. When the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen into the unit.
c
d. If the unit does not operate normally by following the operating instructions.
e. If the unit has been dropped or the cabinet has been damaged.
f.
18. Replacement Parts - When replacement parts are required, be sure the service technician
has used replacement parts specified by the manufacturer or have the same characteristics
as the original part. Unauthorized substitutions may result in fire, electric shock or other
hazards.
19. Safety Check - Upon completion of any service or repairs to this unit, ask the service
technician to perform safety checks to determine that the unit is in proper operating
condition.
20. Coax Grounding - If an outside cable system is connected to the unit, be sure the cable
system is grounded.
21. Lightning - For added protection of this unit during a lightning storm, or when it is left
unattended and unused for long periods of time, unplug it from the wall outlet and discon-
nect the cable system. This will prevent damage to the unit due to lightning and power-
line surges.
If the unit has been exposed to rain or water.
Adjust only those controls that are covered by the operating instructions, as an
improper adjustment of other controls may result in damage and will often require
extensive work by a qualified technician to restore the unit to its normal operation.
When the unit exhibits a distinct change in performance--this indicates a need for
service.
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