127 Disassembly and Assembly Instructions• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo-nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in this servicemanual)• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.• During the disassembly and/or assembly process, please handle with care as there may be chassis components withsharp edges.• Avoid touching heatsinks due to its high temperature after prolong use.• Be sure to use proper service tools , equipments or jigs during repair.• Select items from the following indexes when disassembly or replacement are required.• Disassembly of Rear Cabinet Block• Disassembly of Power P.C.B., Battery (-) P.C.B. and Battery (+) P.C.B.• Disassembly of D-AMP P.C.B.• Disassembly of Volume P.C.B.• Disassembly of Main P.C.B.• Disassembly of Top Key P.C.B and Headphone P.C.B.• Disassembly of Speaker (SP1)