Macintosh Color Classic

The Macintosh Color Classic, introduced in February 1993, was Apple's first compact Macintosh to feature a built-in color display. It combined the classic all-in-one Macintosh design with a 10-inch Sony Trinitron color CRT, offering a resolution of 512×384 pixels. Internally, it shared similarities with the Macintosh LC II, utilizing a Motorola 68030 processor running at 16 MHz and a 16-bit data bus.

Macintosh Color Classic

Macintosh Color Classic
Specifications
Manufacturer	Apple Computer, Inc.
Type	Personal Computer
Released	February 10, 1993
Discontinued	May 16, 1994
Intro price	US$1,389
CPU	Motorola 68030 @ 16 MHz
Memory	4 MB RAM (expandable to 10 MB)
Storage	1.44 MB 3.5" floppy drive, 40–160 MB SCSI hard drive
Display	10" Sony Trinitron CRT (512×384 pixels)
Sound	Mono 8-bit, 22 kHz; built-in microphone
Dimensions	15" H × 10" W × 12.66" D
Weight	22 lbs (10 kg)
OS / Firmware	System 7.1 – Mac OS 7.6.1
Predecessor	Macintosh Classic II
Successor	Macintosh Color Classic II
Codename	LC III, Performa 250
Model no.	M1600

Design and Features

The Color Classic retained the compact form factor of its predecessors but introduced several enhancements:

• Display: 10-inch Sony Trinitron color CRT with 512×384 resolution, switchable to 560×384 for Apple IIe emulation.
• Expansion: One LC-type Processor Direct Slot (PDS), compatible with the Apple IIe Card, enabling Apple IIe emulation.
• Audio: Built-in mono speaker and microphone.
• Ports:
  • 2 × ADB ports
  • 2 × Mini-DIN-8 serial ports
  • 1 × DB-25 SCSI port
  • 1 × 3.5 mm headphone jack

• Power Supply: 100W internal power supply.

Technical Specifications

Processor and Memory

• CPU: Motorola 68030 @ 16 MHz
• FPU: Optional Motorola 68882 via PDS slot
• RAM:
  • 4 MB onboard
  • Expandable to 10 MB using 30-pin SIMMs (100 ns)

• VRAM:
  • 256 KB onboard
  • Expandable to 512 KB via 68-pin VRAM SIMM slot.

Storage

• Floppy Drive: 1.44 MB 3.5" SuperDrive
• Hard Drive: Internal SCSI hard drive options of 40, 80, or 160 MB.

Video and Display

• Display: 10" Sony Trinitron CRT
• Resolution: 512×384 pixels (standard), switchable to 560×384
• Color Support:
  • 256 colors with 256 KB VRAM
  • 32,768 colors with 512 KB VRAM

Audio

• Output: Mono 8-bit, 22 kHz
• Input: Built-in microphone

Dimensions and Weight

• Dimensions: 15" (H) × 10" (W) × 12.66" (D)
• Weight: 22 lbs (10 kg)

Maintenance and Upgrades

The Color Classic is known for its ease of access, allowing users to perform upgrades and maintenance:

• RAM Upgrades: Two 30-pin SIMM slots allow for memory expansion up to 10 MB.
• VRAM Upgrade: A 68-pin VRAM SIMM slot enables video memory expansion to 512 KB.
• Logic Board Replacement: The logic board can be replaced or upgraded with boards from other LC-series Macs, such as the LC 575, in a modification known as the "Mystic" upgrade.
• Capacitor Replacement: Like many vintage Macs, the Color Classic may suffer from leaking capacitors. Recapping guides are available to address this issue.

General Maintenance

For cleaning, battery maintenance, board inspection, and power supply tuning, refer to the Macintosh Color Classic General Maintenance page.

PCB Schematics & Service Manual

The Macintosh Classic includes two main PCBs: a unified logic board and an analog board. Below are the schematics and Apple’s official service manual.

Apple Service Manual

All Apple Service Manuals can be found on the Apple Service Source page.

Logic Board & Analog Board Schematics

Macintosh Color Classic PCB Schematics

Logic Board	Analog Board
Macintosh Color Classic Logic Board File:Macintosh Color Classic Schematic.pdf	Macintosh Color Classic Analog Board

Capacitor Replacement Guide

Full details on logic and analog board recapping can be found at the Macintosh Color Classic Capacitor Replacement Guide.

Retrobrite

To restore the beige color of the Classic’s case, refer to the safe plastic whitening procedures outlined on the Retrobrite page.

Troubleshooting

For diagnosis and solutions to common issues including no startup, checkerboard patterns, floppy drive problems, and failed PRAM batteries, see the Macintosh Color Classic Troubleshooting guide.

Legacy and Collectibility

The Macintosh Color Classic holds a special place among vintage computer enthusiasts due to its unique design and modifiability. Its compact form factor combined with color display capabilities made it a favorite for customization and upgrades. The model is also notable for being the last compact Mac sold in the United States and the only one with a color screen.