Sony TRINITRON KV-20S90, Service Manual

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User Guide
Service
Damage Requiring Service
Unplug the set from the wall outlet and
refer servicing to qualified service
personnel under the following conditions:
•
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.
Servicing
Do not attempt to service the set yourself
since opening the cabinet may expose you
to dangerous voltage or other hazards.
Refer all servicing to qualified service
personnel.
Replacement Parts
When replacement parts are required, be
sure the service technician certifies in
writing that he has used replacement parts
specified by the manufacturer that have the
same characteristics as the original parts.
Unauthorized substitutions may result in
fire, electric shock, or other hazards.
Safety Check
Upon completion of any service or repairs
to the set, ask the service technician to
perform routine safety checks (as specified
by the manufacturer) to determine that the
set is in safe operating condition, and to so
certify. When the set reaches the end of its
useful life, improper disposal could result
in a picture tube implosion. Ask a qualified
service technician to dispose of the set.