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24211102 Datasheet(PDF) 3 Page - Toshiba Semiconductor |
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24211102 Datasheet(HTML) 3 Page - Toshiba Semiconductor |
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3 / 126 page  – 3 – CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazard- ous X-RAY RADIATION. To avoid such hazards, the high voltage must not be above the specified limit. The nominal value of the high voltage of this receiver is (A) kV at zero beam current (minimum brightness) under a (C) V AC power source. The high voltage must not, under any circum- stances, exceed (B) kV. Refer to table-1 for high voltage (A), (B) & AC voltage (C). (See SETTING & ADJUSTING DATA on page 34) Each time a receiver requires servicing, the high voltage should be checked following the HIGH VOLTAGE CHECK procedure in this manual. It is recommended that the read- ing of the high voltage be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter. 2. The only source of X-RAY RADIATION in this TV receiver is the picture tube. For continued X-RAY RADIATION pro- tection, the replacement tube must be exactly the same type tube as specified in the parts list. 3. Some part in this receiver have special safety-related char- acteristics for X-RAY RADIATION protection. For contin- ued safety, parts replacement should be undertaken only after referring to the PRODUCT SAFETY NOTICE below. SAFETY PRECAUTION WARNING : Service should not be attempted by anyone unfamiliar with the necessary precautions on this receiver. The following are the necessary precautions to be observed before servicing this chassis. 1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is performed on the receiver. 2. Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube. The picture tube is highly evacuated and if broken, glass fragments will be violently expelled. Use shatter proof goggles and keep picture tube away from the unprotected body while handling. 3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as; non- metallic control knobs, insulating covers, shields, isolation resistor-capacitor network etc. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety char- acteristics are identified in this manual and its supplements; electrical components having such features are identified by the international hazard symbols on the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, X-ray radiation or other hazards. |
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Similar Description - 24211102 |
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