Power Macintosh 8100 Logic Board Schematic
The Schematic, Main Logic Board Power Macintosh 8100/110 is Apple Computer's drawing 051-0333, revision A, scanned as 31 PDF pages. It covers the logic board of the Power Macintosh 8100/110.
Contents
[edit | edit source]Sheet list from the title sheet:
- 1 Title and table of contents
- 2 PowerPC 601 processor; 3 Address buffers and processor core regulator; 4 HMC memory controller; 5 Data path chips
- 6–7 8 MB on-board DRAM; 8–9 DRAM SIMM sockets; 10 PDS, cache and ROM connectors; 11 Clocks
- 12 I/O controller; 13 Curio; 14 Fast SCSI controller; 15 Serial (GeoPort) ports
- 16 Cuda, power monitor and ADB; 17 Graphics DAC; 18 Monitor and ADB connectors; 19 AWACS sound circuit; 20 Floppy disk
- 21 Terminators and resistors; 22 NuBus connectors; 23 BART NuBus controller; 24 Ethernet and GeoPort wake-up
- Test points, and cross-reference tables on sheets 28–31, including a unit cross-reference that gives the type of every part
What it settles
[edit | edit source]- Sheet 16: the 22-pin power supply connector J17 (+5 V, ground, −12 V, trickle 5 V, PFW and +12 V); battery BT1 3.6 V; connector J27, labelled as power for a Peltier-type active heat sink.
- The cross-reference on sheet 29 lists 38 polarised capacitors (type CAP-P), all found on the drawing sheets; their values are used on Power Macintosh 8100 Capacitor Replacement Guide.
What this document does not contain
[edit | edit source]- No bill of materials, so no Apple part numbers for the components.
- Voltage ratings are not printed on the audio capacitors of sheet 19 or on several 10 µF parts, and the value of C60 on sheet 16 is faint.
- Drawn for the 8100/110 board; the 8100/80 and 8100/100 are not covered separately. No power supply schematic.
Service procedures are in Power Macintosh 8100/ WS 8150 Service Source.
Pages that cite this document
[edit | edit source]- Power Macintosh 8100: board and power connector, sheet 16
- Power Macintosh 8100 Capacitor Replacement Guide: polarised capacitors, sheets 3, 11, 13, 14, 16, 19, 20 and 29
- Power Macintosh 8100 Troubleshooting: J17 pinout and battery, sheet 16
Download: Power Macintosh 8100-110 logic board schematic (051-0333).pdf