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Now downloading free:apple macintosh portable

apple macintosh portable free download

Various electronics service manuals

File information:
File name:macintosh_portable.pdf
[preview macintosh portable]
Size:1073 kB
Model:macintosh portable 🔎
Original:macintosh portable 🔎
Descr: apple macintosh_portable.pdf
Group:Electronics > Other
Multipart:No multipart

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File name macintosh_portable.pdf

K Service Source Macintosh Portable K Service Source Basics Macintosh Portable Basics Overview - 1 Overview This manual contains complete repair procedures for the Macintosh Portable shown at left. Figure: Macintosh Portable K Service Source Specifications Macintosh Portable Specifications Processor - 1 Processor CPU Motorola 68HC000, 16-bit CMOS microprocessor 15.6672 MHz Addressing 32-bit internal registers 24-bit address bus 16-bit data bus Wait States 1 (static logic board) 10 (pseudostatic logic board) Specifications Memory - 2 Memory RAM 1 MB using thirty-two 32K by 8-bit static RAM chips; 100 ns access time; addressing supports up to 9 MB Expandable to 2 MB with optional 1 MB RAM expansion card Expandable to 4 MB with optional 3 MB RAM expansion card (backlit model) ROM 256K using two 128K by 8-bit devices; 150 ns access time; addressing supports up to 4 MB PRAM 128 bytes of system parameter memory VRAM 32K of static video display memory Specifications Disk Storage - 3 Disk Storage Floppy Drive Internal 1.4 MB floppy drive Hard Drive Internal 40 MB hard drive (optional) Specifications I/O Interfaces - 4 I/O Interfaces Floppy Drive DB-19 connector Supports Macintosh 800K Disk Drive, Apple 3.5 Drive, Apple SuperDrive, and Apple Hard Disk 20 SCSI 1.5 MB/second transfer rate Supports a maximum of eight devices Apple Desktop Bus Low-speed serial interface Supports optional low-power mouse Serial Two RS-422 serial ports; mini DIN-8 connectors Modem Phone jack for optional external modem Specifications I/O Interfaces - 5 Power Adapter Power adapter port Sound Stereo sound-in port Video DA-15 connector Supports the connection of external video devices Specifications

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