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6 Operation Checks and Component
Replacement Procedures
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This section describes procedures for checking the operation of the major printed circuit boards
and replacing the main components.
For reassembly after operation checks or replacement, reverse the respective procedures. Special
reassembly procedures are described only when required.
6.1 Checking for the output P.C.B., monitor P.C.B., sub P.C.B., headphones P.C.B. and front sw P.C.B.
6.2 Checking for the power transformer P.C.B.
6.3 Checking for the input P.C.B. and sub P.C.B.
6.4 Checking for the EQ P.C.B. and LED P.C.B.
6.5 Removal of each P.C.B.
6.5.1 Removal of sub P.C.B. and output P.C.B.
6.5.2 Removal of the input P.C.B.
6.5.3 Removal of the EQ P.C.B.
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