- 3 -Abbreviations & Acronyms1. About This ManualThis manual contains information about maintenance and service of acer products.Use this manual to perform diagnostics tests, troubleshoot problems, and align theacer product.1.1. TrademarkThe following terms are trademarks of Acer Inc. :AcerImportanceOnly trained service personnel who are familiar with this Acer Productshall perform service or maintenance to it. Before performing anymaintenance or service, the engineer MUST read the “Safety Note”.