10.1. CautionBelow is the list of disassembly sections10 Assembling and DisassemblingSpecial Note:This model uses a new CD changer unit CRS1. In this following section does not contain the necessary disassembly &assembly information for the CD changer unit (CRS1) except the disasembly & assembly of traverse unit. Kindly refer to theoriginal service manual for the CD changer unit. (Order No. MD0509368C0).“ATTENTION SERVICER”Some chassis components may have sharp edges. Be careful when disassembling and servicing.1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the maincomponents.2. For reassembly after operation checks or replacement, reverse the respective procedures.Special reassembly procedures are described only when required.3. Select items from the following index when checks or replacement are required.4. Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 22), if necessary.Warning :-This product uses a laser diode. Refer to caution statement Precaution of Laser Diode.Caution:After replacing of CD Changer Unit, ageing test is necessary. Please confirm operation for CD Changer Unit.· Disassembly of Top Cabinet· Disassembly of Rear Panel· Disassembly of CD Changer Unit· Disassembly of Main P.C.B.· Disassembly of Transformer P.C.B.· Disassembly of Power P.C.B.· Disassembly of Front Panel Unit· Disassembly of Panel P.C.B.· Disassembly of Deck Mechanism Unit· Disassembly for Deck P.C.B.· Disassembly of Traverse Unit· Disassembly of Optical Pickup Unit (CD Mechanism)· Disassembly of Deck Mechanism· Replacement for cassette lid· Rectification for tape jam problem21SA-AK640PL