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

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K Service Source




Macintosh SE
K Service Source




        Basics
   Macintosh SE
Basics                                         Overview - 1


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




         Figure: Macintosh SE
K Service Source




Specifications
   Macintosh SE
      Specifications                                   Processor - 1

                       Processor

CPU                    Motorola 68000 microprocessor
                       7.83 MHz
                       32-bit architecture
      Specifications                                                      Memory - 2

                       Memory

RAM                    1 or 2 MB, expandable to 4 MB


ROM                    256K


PRAM                   256 bytes of memory
                       CMOS custom chip with seven-year lithium battery
     Specifications                                                    Disk Storage - 3

                      Disk Storage

Floppy Drive          1.4 MB floppy drive
                      Optional second internal and external floppy drive


Hard Drive            Optional 20 or 40 MB hard drive
                      Optional external hard drive
         Specifications                                                 I/O Interfaces - 4

                          I/O Interfaces

Expansion                 Macintosh SE expansion slot; uses a 96-pin Euro-DIN connector


SCSI                      Uses a 50-pin connector (internal) and a DB-25 connector
                            (external)


Apple Desktop Bus         Two Apple Desktop Bus (ADB) connectors for communication with
                            keyboard, mouse, and other input devices


Serial                    Two RS-232/RS-422 serial ports; 230.4 Kbaud maximum; mini
                            DIN-8 connectors


Sound                     For external audio amplifier (standard miniature)
     Specifications                                                   I/O Devices - 5

                      I/O Devices

Keyboards             Apple Keyboard: 81 keys, including numeric keypad and cursor
                        keys
                      Apple Extended Keyboard: 105 keys, including 15 function keys,
                        separate cursor pad, and 10-key numeric keypad


Mouse                 Mechanical tracking; optical shaft at 3.94 pulses per mm (100
                        pulses per in.) of travel; ADB connector
     Specifications                                                Sound and Video - 6

                      Sound and Video

Sound Generator       Four-voice sound with 8-bit digital/analog conversion using 22-
                        kHz sampling rate


Video Display         9-in. (diagonal) screen; high-resolution, 512 by 342 pixel,
                         bit-mapped display
     Specifications                             Electrical - 7

                      Electrical

Line Voltage          90

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