Macintosh Plus Service Source: Difference between revisions
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The '''Macintosh Plus''' volume of Apple's ''Service Source'' is a '''69-page''' service manual covering the Macintosh Plus. The PDF was distilled on '''21 October 1995'''. | |||
The Plus volume is one of only three Macintosh ''Service Source'' manuals that contains an '''Adjustments → Voltage''' chapter; the SE, SE/30, Classic and everything later have yoke and video adjustments only. | |||
''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 == | |||
<templatestyles src="Template:StyledTable/styles.css" /> | |||
{| class="wikitable styled-table" | |||
|- | |||
! Item !! As printed | |||
|- | |||
| CPU || Motorola 68000 at 7.83 MHz | |||
|- | |||
| Line voltage || 105–125 VAC | |||
|- | |||
| Frequency || 50–60 Hz | |||
|- | |||
| Maximum power || 60 W | |||
|} | |||
== Contents == | |||
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''' — Introduction (pdf p. 5), Processor (pdf p. 6), Memory (pdf p. 7), Disk Storage (pdf p. 8), I/O Interfaces (pdf p. 9), I/O Devices (pdf p. 10), Sound and Video (pdf p. 11), Electrical (pdf p. 12), Physical (pdf p. 13) | |||
* '''Troubleshooting''' — General (pdf p. 15), Symptom Charts (pdf p. 16) | |||
* '''Take Apart''' — Cover (pdf p. 27), Power/Sweep Board (pdf p. 29), Logic Board (pdf p. 33), CRT (pdf p. 39), Floppy Drive (pdf p. 42), Chassis (pdf p. 44) | |||
* '''Upgrades''' — Memory Upgrade (pdf p. 47) | |||
* '''Adjustments''' — Voltage (pdf p. 51), Yoke (pdf p. 58), Video (pdf p. 63) | |||
== Notable content == | |||
The voltage adjustment is made on the '''power/sweep board''' through the '''external drive port''' using Apple voltage test cable '''077-0135''': orange lead '''11.90–12.75 V''', red lead '''4.85–5.15 V''', and the board is replaced if both cannot be brought into tolerance together. The procedure is transcribed in full on [[Macintosh 128K/512K Service Source]]. | |||
== What this manual does not contain == | |||
* No parts list, no schematic, no component values — the power/sweep board is a module. | |||
* The Electrical specification gives the 105–125 V machine only; the 220–240 V board is not separately specified. | |||
== Pages that cite this document == | |||
* [[Macintosh Plus]] | |||
* [[Macintosh 128K/512K Service Source]] — the same adjustment, transcribed | |||
''This machine contains a high-vacuum picture tube and a live analogue board. Follow [[CRT Discharge Procedure]] before working inside one.'' | |||
<pdf> File:Macintosh_Plus.pdf </pdf> | |||
Download: [[:File:Macintosh_Plus.pdf|Macintosh_Plus.pdf]] (538 KB) | |||
[[Category:Service Manuals]] | [[Category:Service Manuals]] | ||
[[Category:Apple Vintage Computers]] | [[Category:Apple Vintage Computers]] | ||
[[Category:Apple Service Source]] | [[Category:Apple Service Source]] | ||