Service Manuals, User Guides, Schematic Diagrams or docs for : apple macintosh_iisi

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K Service Source




Macintosh IIsi
K Service Source




        Basics
  Macintosh IIsi
Basics                                          Overview - 1


                                  Overview
                                  This manual contains
                                  complete repair procedures
                                  for the Macintosh IIsi
                                  shown at left.




         Figure: Macintosh IIsi
K Service Source




Specifications
            IIsi
      Specifications                                                    Processor - 1

                       Processor

CPU                    Motorola 68030 microprocessor
                       20 MHz
                       32-bit internal data bus
                       256-byte instruction and data caches
                       Burst-mode RAM access
                       Built-in memory management unit (MMU)


Coprocessor            Motorola 68882 floating-point unit (FPU) included on the
                         optional adapter card
                       20 MHz
      Specifications                                   Memory - 2

                       Memory

RAM                    2 MB, expandable to 17 MB


ROM                    512K standard


PRAM                   256 bytes of parameter memory
     Specifications                                        Disk Storage - 3

                      Disk Storage

Floppy Drive          Internal 1.4 MB floppy drive


Hard Drive            Internal 40 MB hard drive
                      Optional internal 80 MB hard drive
         Specifications                                                   I/O Interfaces - 4

                          I/O Interfaces

Expansion                 One slot for either a NuBus or 030 direct slot card
                          Power available (15 W maximum)
                          + 5 V 2.0 A
                          +12 V 175 A
                          -12 V 150 A


SCSI                      One external SCSI port; DB-25 connector


Serial                    Two RS-422/RS-232/AppleTalk serial ports; mini DIN-8
                            connectors
    Specifications                                                   I/O Devices - 5

                     I/O Devices

Keyboard             Apple Keyboard, Apple Keyboard II, or Apple Extended Keyboard
                       connected through Apple Desktop Bus (ADB) ports (mini
                       DIN-4)


Mouse                ADB mouse (mini DIN-4)
     Specifications                                                Sound and Video - 6

                      Sound and Video

Sound Generator       Output impedance of 8

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