Sony TRINITRON KV-20S90 Service Manual page 52

User Guide
When the power cord or plug is
damaged or frayed.
If liquid has been spilled into the set
or objects have fallen into the
product.
If the set has been exposed to rain or
water.
If the set has been subject to
excessive shock by being dropped,
or the cabinet has been damaged.
If the set does not operate normally
when following the operating
instructions. Adjust only those
controls that are specified in the
operating instructions. Improper
adjustment of other controls may
result in damage and will often
require extensive work by a
qualified technician to restore the set
to normal operation.
When the set exhibits a distinct
change in performance — this
indicates a need for service.