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Power Macintosh G3 Desktop and Minitower Service Source

From RetroTechCollection

The Power Macintosh G3 Desktop Service Source is Apple Computer's module-level service manual for the desktop and minitower Power Macintosh G3 (Beige). The cover names only the desktop, but its Hot Issues cover the shared logic board and the minitower's power supply jumper setting. The hosted copy is a 276-page PDF with a text layer, created on 12 November 1997 and last modified on 21 May 1998 (FrameMaker 5.0.1, Acrobat Distiller 2.1).

Contents

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PDF page numbers:

  • Hot Issues (pp. 2-13): shared logic board; processor module; J28 power supply jumper and J16 processor jumper; warranty sticker; voltage switch; voltage regulator; I/O card; ROM DIMM; SDRAM and SGRAM; EIDE bus (single device on J9); master/slave support; Ultra Wide SCSI cable routing; DVD-ROM disc damage; CD-ROM ejection; HFS+ drives and the version 2 logic board (661-2063); the power-on issue traced to the voltage regulator.
  • Basics (pp. 14-93): overview, data buses, Ultra Wide SCSI and 10/100 Ethernet cards, DVD-ROM, FireWire, the Cuda chip (p. 62), resetting the logic board (pp. 63-64), sound, video input and output, the voltage switch with a table of mains voltages by country (pp. 73-75), backside cache, SDRAM and SGRAM, PCI, front and rear views, internal locator, logic board diagram (p. 85), repair strategy, and an Apple white paper on the PowerPC G3.
  • Specifications (pp. 94-109), including Apple's printed technical specifications sheet.
  • Take Apart (pp. 110-201): top housing, bezels, chassis latch, CD-ROM or DVD-ROM drive, Zip and floppy drives, drive chassis, card retainer baffle, internal chassis, hard drive, power supply, speaker, power actuator, processor module and jumper (pp. 161-170), battery (pp. 171-173), PCI, Ultra Wide SCSI, FireWire and I/O cards, logic board (pp. 190-196), rear panel, bottom chassis.
  • Upgrades (pp. 202-216): PCI and I/O cards; DRAM and SGRAM.
  • Troubleshooting (pp. 217-254): voltage regulator, processor module, J16 and J28, I/O cards, HFS+ drives, card connector cleaning, power supply verification by voltmeter on the 20-pin connector (pp. 228-233), and symptom charts for system, error chords, video, floppy drive, hard drive, peripherals, CD-ROM drive and miscellaneous faults.
  • Exploded View (pp. 255-256) with service part numbers.
  • Appended user documents (pp. 257-276): About Your Optional Power Macintosh Audio/Video Card (033-1009, April 1998) and the build-to-order update covering the Ultra Wide SCSI card, RAID, the FireWire card and the DVD-ROM drive.

What this manual does not contain

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No schematics or component values. The physical specifications are for the desktop case only; the minitower's size and weight are on Apple's specification page. The take-apart chapter is written for the desktop case.

Pages that cite this document

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Download: Power Macintosh G3 Desktop and Minitower Service Source.pdf

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