Hitachi 50UX23K - Manual (Page 9)

PICTURE CAUTIONS - 9 -
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 fire, electric shock, or other hazards.
27 Upon completion of any service or repairs to the television set, ask the service
technician to perform routine safety checks to determine that the television is in safe
operating condition.
PICTURE CAUTIONS
Continuous on-screen displays such as video games,
stock market quotations, computer generated graphics,
and other fixed (non-moving) patterns can cause
permanent damage to projection television receivers.
Such "PATTERN BURNS" constitute misuse and are NOT
COVERED by your Hitachi Factory Warranty.
Wh en using the Picture-in-Picture function, the sub-picture should not be
left permanently in one corner of the screen or a "pattern burn" may
develop over a long period of time.