SERVICE MANUALModel: HB21FSSAA, HB21FG*5Issue 2010-12Rev. Ref1012S008V0Photo used in this manualThe illustration and photos used in this Manual may not base on the final design of products, which maydiffer from your products in some way.1-3. How to read this Service Manual1-3-1. Using IconsThe meaning of each icon is described in the table below:Note:A “note” provides information that is not indispensable.Caution:A “caution” is used when there is danger, through incorrect manipulation, may damage equipment, loosedata, get an unexpected result or has to restart (part of) a procedure.Warning:A “warning” is used when there is danger of personal injury.Reference:A “reference” guides to find additional information on a specific topic.