MCINTOSH-MA6100_service-manual维修手册_b

MA6100Iclntosh SERVICE BULLETINS.B.No.1WIRING CHANGEMODEL:MA 6100 Preamp-AmplifierPURPOSE OF MODIFICATION:To correct wiring error in compensationand tone controls.WHAT UNITS ARE AFFECTED:Serial No.AE1001 to AE1184WHEN MODI FICATION SHOULD BE MADE:Any time any other serviceis performed.McINTOSH MODIF ICATION KIT NO.NonePARTS REQUIRED:NonePROCEDURE:(Refer to the diagram on reverse side)Step 1 Remove dust cover,knobs front panel.Step 2 Interchange the orange and orange/whitewires connected to the tone control PC Board.Step 3 Interchange the brown and brown/whitewires connected to the tone control PC Board.Step 4 Remove 4 screws from upper section of subpanel and interchange the green and green/whitewires connected to the volume control (R210).Step 5 Replace upper section of sub panel making sureto use the hex head screws in the top holesand the pan head screws in the lower holesRep lace front panel,knobs and dust cover.BE042003Mclntosh Laboratory Incorporated2 Chambers StreetBinghamton,New York 13903Phone:Area Code 607-723-3512