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K Service Source

Macintosh SE/30
K Service Source

Basics
Macintosh SE/30
Basics Overview - 1

Overview
This manual includes
complete repair procedures
for the Macintosh SE/30,
shown at left.

Figure: Macintosh SE/30
K Service Source

Specifications
Macintosh SE/30
Specifications Processor - 1

Processor

CPU Motorola 68030 microprocessor
15.667 MHz
32-bit architecture
256-byte instruction and data caches
Built-in paged memory management unit (PMMU)

Coprocessor Motorola 68882 floating-point unit (FPU); follows IEEE
standards
Specifications Memory - 2

Memory

RAM 1 or 4 MB, expandable to 32 MB
Upgradeable to 5 MB

ROM 256K

PRAM 256 bytes of user-set parameter memory
CMOS custom chip with long-life lithium battery
Specifications Disk Storage - 3

Disk Storage

Floppy Drive 1.4 MB floppy drive

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

I/O Interfaces

Expansion One 030 direct slot supporting full 32-bit address and data lines
through 120-pin Euro-DIN connector

SCSI One 50-pin connector (internal) and one DB-25 connector
(external)

Apple Desktop Bus Two Apple Desktop Bus (ADB) ports for communication with
keyboard, mouse, and other input devices over low-speed,
synchronous serial bus

Serial Two RS-232/RS-422 serial ports; 230.4 Kbaud maximum

Sound Stereo sound port for external audio amplifier
Specifications I/O Devices - 5

I/O Devices

Keyboards Apple Keyboard
Apple Extended Keyboard

Mouse Mechanical tracking; ADB connector; optical shaft or contact
encoding at 3.94