vii
19. Damage Requiring
Service
C
Unplug this product from
the wall 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
product,
c. If the product has been
exposed to rain or water,
d. If the product does not operate
normally by following the
operating instructions. 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 product to its normal
operation,
e. If the product has been
dropped or damaged in any
way, and
f. When the product exhibits a
distinct change in
performance
C
this indicates a
need for service.
20. Replacement Parts
C
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.
21. Safety Check
C
Upon completion
of any service or repairs to this
product, ask the service techni-
cian to perform safety checks to
determine that the product is in
proper operating condition.
22. Wall or Ceiling Mounting
C
The
product should be mounted to a
wall or ceiling only as recom-
mended by the manufacturer.
23. Heat
C
The product should be
situated away from heat sources
such as radiators, heat registers,
stoves, or other products (includ-
ing amplifiers) that produce heat.
