Hitachi 50GX49B Owners Guide - Page 7

PICTURE CAUTIONS - 7 - further adjustment. Unplug the television and call your dealer or service technician. 23 Whenever the television is damaged or fails, or if there is a distinct change in performance that indicates a need for service, unplug the television and have it checked by a qualified service technician. 24 It is normal for some televisions 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 manufacturer as they may cause hazards. 26 If 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, ask the service technician to perform routine safety checks to determine that the television is in safe operating condition. PICTURE CAUTIONS Picture Burn Prevention • 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. • When using 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. Public Viewing of Copyrighted Material Public viewing of programs broadcast by TV stations and cable companies, as well as programs from other sources, may require prior authorization from the broadcaster or owner of the video program material.