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Difference between revisions of "Macintosh Classic"
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The Macintosh Classic was released in 1990 and ran until 1992, though runs the same 8MHz [[Motorola 68000]] found in the earlier [[Macintosh Plus]] and [[Macintosh SE]] models. Similar to the SE model, the Classic has room for an internal hard disk. The Classic wasn't an overly remarkable computer, but we believe it was designed to be a low cost solution ideally for the education market. As a result, the Macintosh Classic was commonly found in schools during the early to mid 1990s. | The Macintosh Classic was released in 1990 and ran until 1992, though runs the same 8MHz [[Motorola 68000]] found in the earlier [[Macintosh Plus]] and [[Macintosh SE]] models. Similar to the SE model, the Classic has room for an internal hard disk. The Classic wasn't an overly remarkable computer, but we believe it was designed to be a low cost solution ideally for the education market. As a result, the Macintosh Classic was commonly found in schools during the early to mid 1990s. | ||
+ | |||
+ | =General Information= | ||
+ | ===CPU=== | ||
+ | * 68000 microprocessor, running at 7.8336 megahertz | ||
+ | ===ROM=== | ||
+ | 512K of ROM, including: | ||
+ | * Hierarchical File System | ||
+ | * Drivers for Macintosh hard disks, ADB, [[SCSI]], and an [[AppleTalk]] network | ||
+ | * [[Macintosh Toolbox]] | ||
+ | * [[QuickDraw]] | ||
+ | |||
+ | =Overview= | ||
+ | The Apple Macintosh Classic personal computer offers all of the most valued advantages associated with Macintosh computers including unsurpassed ease of use, the ability to run thousands of applications that work well together, built-in networking, and an easy growth path-in the lowest-cost Macintosh. It's an excellent choice for first-time Macintosh buyers | ||
+ | who want the essential features of a Macintosh in a complete, affordable system. And the integrated design of the Macintosh Classic makes it a good choice if you want a system that's easy to set up and move around. | ||
+ | |||
+ | An updated version of Apple's most popular Macintosh design, the Macintosh Classic offers high system performance (up to 25 percent faster than the [[Macintosh Plus]]) and comes standard with the Apple SuperDrive; a 3.5-inch disk drive that can read from and write to Macintosh disks as well as MS-DOS, OS/2, and ProDOS disks. The Macintosh Classic can be configured with an internal hard disk drive, which gives you plenty of room to store applications and files. | ||
+ | |||
+ | Like every Macintosh system, the Macintosh Classic offers numerous built-in capabilities not always found in other personal computers. Because [[AppleTalk]] networking capabilities are built in, for example, the Macintosh Classic can function as an individual productivity system or as a cost-effective member of a network environment. Also, a [[SCSI]] (Small Computer System Interface) port lets you connect as many as seven peripheral products - ranging from CD-ROM drives, high-capacity hard disk drives, and scanners to an Apple [[LaserWriter]] printer - to the system. And built-in sound output capabilities make the Macintosh Classic ready for a new generation of applications that incorporate sound as well as text and graphics. | ||
+ | |||
+ | This combination of built-in capabilities and external ports gives you an easy, "plug-and-play" way to expand the Macintosh Classic. And because it can support the required memory and an internal hard disk, the Macintosh Classic has the capability to run the next generation of innovative Macintosh applications - those based on Macintosh system software version 7.0. | ||
=Secret ROM Disk= | =Secret ROM Disk= | ||
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File:WB152388921 1.jpeg | File:WB152388921 1.jpeg | ||
File:WB152388921 2.jpeg | File:WB152388921 2.jpeg | ||
+ | File:Mac-classic2.jpg | ||
+ | File:Mac-classic3.jpg | ||
+ | File:Mac-classic4.jpg | ||
+ | File:Mac-classic5.jpg | ||
</gallery> | </gallery> | ||
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* 1 x 220uf 50v | * 1 x 220uf 50v | ||
* 1 x 4.7uf 250v | * 1 x 4.7uf 250v | ||
+ | |||
+ | =Documentation= | ||
+ | * [[Macintosh Classic/Classic II/Performa 200 Service Source]] | ||
+ | * [[Macintosh Classic Developer Note]] | ||
=External Resources= | =External Resources= | ||
* https://archive.org/details/TheDeadMacScrolls - Troubleshooting/repair information for compact Macs | * https://archive.org/details/TheDeadMacScrolls - Troubleshooting/repair information for compact Macs | ||
* http://www.ccadams.org/se/classicmac2.pdf - Classic Mac Repair Notes | * http://www.ccadams.org/se/classicmac2.pdf - Classic Mac Repair Notes | ||
+ | |||
+ | =Related Articles= | ||
+ | * [[Macintosh Classic II]] | ||
+ | * [[Macintosh Color Classic]] | ||
=See Also= | =See Also= | ||
* [[Apple Computer]] | * [[Apple Computer]] | ||
+ | {| class="wikitable" style="background-color:#cbcefb;" | ||
+ | |+The Compact Macintosh Family from [[Apple Computer]] | ||
+ | |- | ||
+ | |[[Macintosh 128K]] -- [[Macintosh 512K]] -- [[Macintosh Plus]] -- [[Macintosh SE]] -- [[Macintosh SE/30]] -- [[Macintosh Classic]] -- [[Macintosh Classic II]] -- [[Macintosh Color Classic]] -- [[Macintosh Color Classic II]] | ||
+ | |} | ||
[[Category:Apple]] | [[Category:Apple]] | ||
[[Category:68000]] | [[Category:68000]] | ||
+ | [[Category:1990]] |
Latest revision as of 17:39, 29 February 2024
The Macintosh Classic was released in 1990 and ran until 1992, though runs the same 8MHz Motorola 68000 found in the earlier Macintosh Plus and Macintosh SE models. Similar to the SE model, the Classic has room for an internal hard disk. The Classic wasn't an overly remarkable computer, but we believe it was designed to be a low cost solution ideally for the education market. As a result, the Macintosh Classic was commonly found in schools during the early to mid 1990s.
General Information
CPU
- 68000 microprocessor, running at 7.8336 megahertz
ROM
512K of ROM, including:
- Hierarchical File System
- Drivers for Macintosh hard disks, ADB, SCSI, and an AppleTalk network
- Macintosh Toolbox
- QuickDraw
Overview
The Apple Macintosh Classic personal computer offers all of the most valued advantages associated with Macintosh computers including unsurpassed ease of use, the ability to run thousands of applications that work well together, built-in networking, and an easy growth path-in the lowest-cost Macintosh. It's an excellent choice for first-time Macintosh buyers who want the essential features of a Macintosh in a complete, affordable system. And the integrated design of the Macintosh Classic makes it a good choice if you want a system that's easy to set up and move around.
An updated version of Apple's most popular Macintosh design, the Macintosh Classic offers high system performance (up to 25 percent faster than the Macintosh Plus) and comes standard with the Apple SuperDrive; a 3.5-inch disk drive that can read from and write to Macintosh disks as well as MS-DOS, OS/2, and ProDOS disks. The Macintosh Classic can be configured with an internal hard disk drive, which gives you plenty of room to store applications and files.
Like every Macintosh system, the Macintosh Classic offers numerous built-in capabilities not always found in other personal computers. Because AppleTalk networking capabilities are built in, for example, the Macintosh Classic can function as an individual productivity system or as a cost-effective member of a network environment. Also, a SCSI (Small Computer System Interface) port lets you connect as many as seven peripheral products - ranging from CD-ROM drives, high-capacity hard disk drives, and scanners to an Apple LaserWriter printer - to the system. And built-in sound output capabilities make the Macintosh Classic ready for a new generation of applications that incorporate sound as well as text and graphics.
This combination of built-in capabilities and external ports gives you an easy, "plug-and-play" way to expand the Macintosh Classic. And because it can support the required memory and an internal hard disk, the Macintosh Classic has the capability to run the next generation of innovative Macintosh applications - those based on Macintosh system software version 7.0.
Secret ROM Disk
There is an embedded copy of Apple System 6 stored in the ROM. Hold down Command + Option + X + O during power-on to boot off the ROM disk.
Notes
- Due to the age of this computer, modern usage requires the logic board have the capacitors replaced and the PRAM battery removed or replaced. Capacitors on the analog board may also need to be replaced if you experience issues with the display.
- Another potential Classic issue is the failure to complete the "POST" sequence and the system will stop loading just before the point where the "happy Mac" or blinking disk icon would show up. We suspect this is the result of a defective SCSI bus.
Modifications
Analog Board Voltage
Some tips on modifying Mac Classic Analog Boards! ------------------------------------------------- If you want to modify a Mac Classic from 110v to 240v (or vice versa) use these tables: Late Revision Classic Analog Board (JP2 marked on PCB across CP13 location) 110v 240v JP1 Wire Link - JP2 - Wire Link CP1 220uF 250V 220uF 400V CP13 220uF 250V - CP19 4.7nF 250V 10nF 250V <-- Must be Class Y Rated CP38 Wire Link 10nF 250V <-- Must be Class Y Rated Early Revision Classic Analog Board (JP2 not marked across CP13) 110v 240v JP1 Wire Link - CP1 220uF 250V 220uF 400V CP13 220uF 250V 220uF 400V CP19 4.7nF 250V 10nF 250V <-- Must be Class Y Rated CP38 Wire Link 10nF 250V <-- Must be Class Y Rated
Gallery
Troubleshooting/Repair
Capacitor replacement (logic board)
The SMD capacitors on the logic board will most likely have already started leaking electrolyte out the bottom, and failing to replace them in a timely manner will result in further leakage with possible damage to nearby components. See below list of capacitors to replace:
- 7 x 47uf 16V
- 1 x 1uf 16V
Capacitor replacement (analog/PSU board)
This list is every radial capacitor on the Classic's analog/PSU board. You don't necessarily need to replace all of these, but it's probably more convenient all at once.
- 2 x 220uf 250v
- 3 x 470uf 25v
- 4 x 1uf 50v
- 1 x 1000uf 10v
- 2 x 2200uf 10v
- 1 x 2200uf 16v
- 1 x 470uf 50v
- 2 x 47uf 25v
- 1 x 220uf 16v
- 1 x 470uf 10v
- 1 x 1000uf 16v
- 1 x 47uf 16v
- 1 x 10uf 25v
- 1 x 1000uf 25v
- 1 x 220uf 50v
- 1 x 4.7uf 250v
Documentation
External Resources
- https://archive.org/details/TheDeadMacScrolls - Troubleshooting/repair information for compact Macs
- http://www.ccadams.org/se/classicmac2.pdf - Classic Mac Repair Notes
Related Articles
See Also
Macintosh 128K -- Macintosh 512K -- Macintosh Plus -- Macintosh SE -- Macintosh SE/30 -- Macintosh Classic -- Macintosh Classic II -- Macintosh Color Classic -- Macintosh Color Classic II |