Hitachi 27MM20B Operating Manual page 5

IMPORTANT - 5 -
18 For added protection for this television set during a lightning storm, or when it is left unattended and unused for
long periods of time, unplug it from the wall outlet and disconnect the antenna. This will prevent damage due to
lightning and power-line surges.
OPERATION OF YOUR SET
19 This television set should be operated only from the type of power source indicated on the marking label. If you
are not sure of the type of power supply at your home, consult your television dealer or local power company. For
television sets designed to operate from battery power, refer to the operating instructions.
20 If the television set does not operate normally by following the operating instructions, unplug this set television
set from the wall outlet and refer servicing to qualified service personnel. Adjust only those controls that are
covered in the operating instructions as improper adjustment of other controls may result in damage and will often
require extensive work by a qualified technician to restore the television set to normal operation.
21 If your television set is to remain unused for a period of time, (such as when going on a holiday), turn the
television set OFF and unplug it from the wall outlet.
IF THIS SET DOES NOT OPERATE PROPERLY
22 If you are unable to restore normal operation by following the detailed procedure in your operating instructions,
do not attempt any further adjustment. Unplug the set and call your dealer or service technician.
23 Whenever the television set is damaged or fails, or a distinct change in performance indicates a need for
service, unplug the set and have it checked by a professional service technician.
24 It is normal for some TV sets to make occasional snapping or popping sounds, particularly when being turned
on or off. If the snapping or popping is continuous or frequent, unplug the set and consult your dealer or service
technician.
FOR SERVICING AND MODIFICATION
25 Do not use attachments not recommended by the television set manufacturer as they may cause hazards.
26 When replacement parts are required, be sure the service technician has used replacement parts specified by
the manufacturer that have the same characteristics as the original part. Unauthorized substitutions may result in