Macintosh Service Source
The Macintosh volume of Apple's Service Source is a 79-page service manual covering the original Macintosh 128K and 512K (Apple's cover carries no model numbers at all — the volume is titled simply Macintosh). The PDF was distilled on 15 December 1995.
This page and Macintosh 128K/512K Service Source embed the same file. The fuller treatment of the manual — including Apple's Adjustments → Voltage procedure verbatim — is on that page; this page records the manual under the title Apple actually printed on it.
Service Source volumes are module-level documents. They give Apple's own specifications, symptom charts, take-apart procedures and module part numbers, but they do not carry schematics, board-level parts lists or component values, so they cannot be used to source a capacitor table. Where a figure below is quoted, it is quoted as Apple printed it.
Specifications as Apple prints them
[edit | edit source]| Item | As printed |
|---|---|
| CPU | Motorola 68000 at 7.83 MHz |
| Line voltage | 105–125 VAC (no 220–240 V figure is printed) |
| Maximum power | 60 W |
| PRAM cell | 4.5 V, user-replaceable |
Contents
[edit | edit source]Reconstructed from the manual's own running headers; page numbers are positions in the PDF, so a citation can be checked directly.
- Basics — Overview (pdf p. 3)
- Specifications — Processor (pdf p. 5), Memory (pdf p. 6), Disk Storage (pdf p. 7), I/O Interfaces (pdf p. 8), I/O Devices (pdf p. 9), Sound and Video (pdf p. 10), Electrical (pdf p. 11), Physical (pdf p. 12)
- Troubleshooting — General (pdf p. 14), Symptom Charts (pdf p. 15)
- Take Apart — Cover (pdf p. 24), Power/Sweep Board (pdf p. 28), Logic Board (pdf p. 32), CRT (pdf p. 36), Floppy Drive (pdf p. 39), Chassis (pdf p. 42)
- Upgrades — Floppy Drive Upgrade Kit (pdf p. 45), Logic Board Upgrade Kit (pdf p. 51), 400K Drive ROM Upgrade (pdf p. 56)
- Adjustments — Voltage (pdf p. 61), Yoke (pdf p. 67), Tilt Adjustment (pdf p. 69), Video (pdf p. 74)
What this manual does not contain
[edit | edit source]- No parts list, no schematic, no component values.
- Only the 105–125 V machine is specified; the 220–240 V board is not covered.
Pages that cite this document
[edit | edit source]- Macintosh 128K/512K Service Source — the same file, described in full
- Macintosh 128K
- Macintosh 512K
- Macintosh 512Ke
This machine contains a high-vacuum picture tube and a live analogue board. Follow CRT Discharge Procedure before working inside one.
Download: Macintosh_128k.512k.pdf (585 KB)