Service Manuals, User Guides, Schematic Diagrams or docs for : apple macintosh_ii.iix.iifx

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      K Service Source




Macintosh II/IIx/IIfx
   K Service Source




             Basics
Macintosh II/IIx/IIfx
Basics                                                   Overview - 1


                                           Overview
                                           This manual includes
                                           complete repair procedures
                                           for the Macintosh II,
                                           Macintosh IIx, and
                                           Macintosh IIfx.



         Figure: Macintosh II, IIx, IIfx
   K Service Source




    Specifications
Macintosh II/IIx/IIfx
      Specifications                                                  Processor - 1


                       Processor

CPU

 Macintosh II          Motorola 68020 microprocessor
                       15.6772 MHz
                       Optional built-in paged memory management unit (PMMU)

 Macintosh IIx         Motorola 68030 microprocessor
                       15.6772 MHz
                       Built-in paged memory management unit (PMMU)

 Macintosh IIfx        Motorola 68030 microprocessor
                       40 MHz
                       Built-in paged memory management unit (PMMU)
     Specifications                                      Processor - 2

Coprocessor

  Macintosh II         Motorola 68881 math coprocessor

  Macintosh IIx/IIfx   Motorola 68882 math coprocessor


Addressing             32-bit registers
                       32-bit address bus
                       32-bit data bus
      Specifications                                       Memory - 3

                       Memory

RAM

 Macintosh II/IIx      1 MB, expandable to 8 MB

 Macintosh IIfx        4 MB standard, expandable to 8 MB


ROM

 Macintosh II/IIx      256K


 Macintosh IIfx        512K
     Specifications                                                     Disk Storage - 4

                       Disk Storage

Floppy Drive

  Macintosh II         Internal 800K floppy drive
                       Optional second internal 800K floppy drive
                       Optional internal 1.4 MB floppy drive upgrade

  Macintosh IIx/IIfx   Internal 1.4 MB floppy drive
                       Optional second internal 1.4 MB floppy drive


Hard Drive             Optional internal 40, 80, or 160 MB hard drive
         Specifications                                                   I/O Interfaces - 5

                          I/O Interfaces

Expansion                 Processor-direct slot (PDS)


SCSI                      5 MB/sec. transfer rate
                          Eight device maximum


Apple Desktop Bus         Two ADB ports allow daisy-chaining of peripheral devices


Serial                    Two RS-232/RS-422 serial ports; mini DIN-8 connectors


NuBus                     Six internal NuBus slots support full 32-bit address and data
                             buses
     Specifications                                                 Sound and Video - 6

                      Sound and Video

Sound Generator       Apple's custom digital sound chip provides 8-bit stereo sampling
                        at 44.1 kHz and includes four-voice, wavetable synthesis;
                        capable of driving stereo headphones or other stereo equipment
                        through the sound jack.
     Specifications                                           Electrical - 7

                      Electrical

Line Voltage          100

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