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11 Disassembly and Assembly Instructions
Caution Note:
• 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 the service
manual)
• 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 with
sharp edges.
• Avoid touching heatsinks due to its high temperature after prolong use. (See caution as described below)
• During disassembly and assembly, please ensure proper service tools, equipments or jigs is being used.
• During replacement of component parts, please refer to the section of “Replacement Parts List” as described in the ser-
vice manual.
• Select items from the following indexes when disassembly or replacement are required.
Main Unit (SU-HTB550)
• Disassembly of Top Cabinet
• Disassembly of Main P.C.B.
• Disassembly of SMPS P.C.B.
• Replacement of Switching Regulator IC (IC5701)
• Replacement of Rectifier Diode (D5802)
• Disassembly of Rear Panel
• Disassembly of DAMP P.C.B.
• Disassembly of Front Panel Block
• Disassembly of Wireless Adapter P.C.B. and Digital Transmitter Module P.C.B.
• Disassembly of Power Button P.C.B.
• Disassembly of Button P.C.B. and Panel P.C.B.
Front Speakers (SB-HTB550)
• Disassembly of Front Speaker Unit (L/R) (Bar position)
• Disassembly of Front Speaker Unit (L/R) (Standing position)
• Disassembly of Rear Cabinet Assembly
• Disassembly of Tweeter Speaker (SP1)
• Disassembly of Woofer Speaker (SP2)
• Disassembly of Port Unit
• Replacement of Speaker Wire
Active Subwoofer (SB-HWA520)
• Disassembly of Rear Panel Block
• Disassembly of DAMP P.C.B.
• Disassembly of Digital Receiver Module P.C.B.
• Replacement of Digital Amplifier IC (IC5200)
• Disassembly of Power Button P.C.B.
• Disassembly of SMPS Module P.C.B.
• Disassembly of Bottom Panel Block
• Disassembly of Woofer Speaker
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