Toshiba Tecra A2-S20ST Maintenance Manual - Page 3
Preface, Danger, Warning, Caution
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Preface This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer Satellite A50/TECRA A2 series. NOTE: This Satellite A50/TECRA A2 series is a BTO-support personal computer. Each model has a different configuration. For each model's configuration, refer to the parts list dedicated to it. The procedures described in this manual are intended to help service technicians isolate faulty Field Replaceable Units (FRUs) and replace them in the field. SAFETY PRECAUTIONS Four types of messages are used in this manual to bring important information to your attention. Each of these messages will be italicized and identified as shown below. DANGER: "Danger" indicates the existence of a hazard that could result in death or serious bodily injury, if the safety instruction is not observed. WARNING: "Warning" indicates the existence of a hazard that could result in bodily injury, if the safety instruction is not observed. CAUTION: "Caution" indicates the existence of a hazard that could result in property damage, if the safety instruction is not observed. NOTE: "Note" contains general information that relates to your safe maintenance service. Improper repair of the computer may result in safety hazards. Toshiba requires service technicians and authorized dealers or service providers to ensure the following safety precautions are adhered to strictly. q Be sure to fasten screws securely with the right screwdriver. Be sure to use the PH Point size "0" and "1" screwdrivers complying with the ISO/DIS 8764-1:1996. If a screw is not fully fastened, it could come loose, creating a danger of a short circuit, which could cause overheating, smoke or fire. q If you replace the battery pack or RTC battery, be sure to use only the same model battery or an equivalent battery recommended by Toshiba. Installation of the wrong battery can cause the battery to explode. Satellite A50/TECRA A 2 Maintenance Manual (960-478) iii