McIntosh service information
This data is available on DVD-ROM from www.theoscilloscopestore.com
Many files on this site, especially scanned documentation, are in Adobe Acrobat (PDF) format. I recommend that if you don't already have it you download the latest version of Adobe reader. Some files have compressed images that may not work correctly with older versions of Acrobat reader.
This page contains scans of McIntosh service data. Most of this data was in three loose-leaf binders donated by an anonymous benefactor..
Data is listed by model number in alphabetical order, with miscellaneous documentation at the end of the list.
"Schematic" is a schematic with little or no other info. Some have voltage data on them.
"Service data" is full info including specs, block diagrams, schematics, chassis photos, PCB pictorials, parts list, and (if appropriate) dial stringing info and alignment procedures.
"Service manual" is pretty much the same data in a different format.
"Instruction manual" has installation and hookup information, and some have schematics and limited service data.
AA2 audio analyzer service data
C4 preamp service data (Sams, courtesy of Tom Bavis)
C8 preamp service data (Sams, courtesy of Tom Bavis)
C28 preamp service data (early serial numbers)
C28 preamp service data (late serial numbers)
MAC1500 receiver service manual
another MC75 schematic (courtesy of Bob Predaina)
MC2100 amplifier service data (courtesy of Lawrence Heim)
MI2 performance indicator schematic
MI3 performance indicator service data
MI350 industrial power amplifier service data
ML2C loudspeaker service data (early serial numbers)
ML2C loudspeaker service data (late serial numbers)
ML2M loudspeaker service data (early serial numbers)
ML2M loudspeaker service data (late serial numbers)
ML10C loudspeaker service data
MPI4 maximum performance indicator service data
MQ104 equalizer service data (early serial numbers)
MQ104 equalizer service data (late serial numbers)
MR55 tuner service data (Sams, courtesy of Tom Bavis)
MR67 tuner (with meter) schematic
MR77 tuner service data (early serial numbers)
MR77 tuner service data (late serial numbers)
MR78 tuner service data (early serial numbers)
MR78 tuner service data (late serial numbers)
MX110 tuner/preamp service manual
NEW 2/24/08 - MX110 M-series schematic (courtesy of Larry)
MX112 tuner/preamp service data (early serial numbers)
MX112 tuner/preamp service data (early serial numbers)
MX113 tuner/preamp service data
MX114 tuner/preamp service data
MX115 tuner/preamp service data
Stereotech 1200 receiver service data
Stereotech 1 loudspeaker service data
Stereotech 2 loudspeaker service data
Stereotech 3 loudspeaker service data
Stereotech 4 loudspeaker service data
McIntosh replacement parts price list (1975)