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Macintosh II/IIx/IIfx Service Source: Difference between revisions

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Check against PDF: full spec table for all three models, exploded-view part numbers (page said no parts list), NEC SIMM, PMMU, FDHD ROM, battery holder and IIfx termination details with pages; remove uncited 'no other volume' and Quadra 840AV comparison; correct Pina battery framing; add IIcx and Battery Refurbishment to citing pages
 
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The '''Macintosh II/IIx/IIfx''' volume of Apple's ''Service Source'' is a '''87-page''' service manual covering the Macintosh II, IIx and IIfx. The PDF was distilled on '''1 December 1995'''.
The '''''Macintosh II/IIx/IIfx'' Service Source''' is Apple's 87-page service manual for the [[Macintosh II]], [[Macintosh IIx]] and [[Macintosh IIfx]]. The PDF was produced on 1 December 1995. Like other Service Source volumes it works at module level: specifications, symptom charts, take-apart and upgrade procedures, and module part numbers, with no schematics or component values. Page numbers below are the PDF's.


''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 printed ==
 
== Specifications as Apple prints them ==
<templatestyles src="Template:StyledTable/styles.css" />
<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table"
{| class="wikitable styled-table"
|+'''Specifications (pp. 5-12)'''
! Item !! Macintosh II !! Macintosh IIx !! Macintosh IIfx
|-
|-
! Item !! As printed
| CPU || 68020, 15.6772 MHz, optional PMMU || 68030, 15.6772 MHz, built-in PMMU || 68030, 40 MHz, built-in PMMU
|-
|-
| CPU, Macintosh II || Motorola 68020 at 15.6772&nbsp;MHz, optional PMMU
| Coprocessor || 68881 || 68882 || 68882
|-
|-
| CPU, IIx/IIfx || Motorola 68030
| RAM || 1 MB, expandable to 8 MB || 1 MB, expandable to 8 MB || 4 MB, expandable to 8 MB
|-
|-
| Line voltage || 100&ndash;240&nbsp;VAC, automatically configured
| ROM || 256K || 256K || 512K
|-
|-
| Frequency || 48&ndash;62&nbsp;Hz, single phase
| Floppy || 800K; optional second 800K; optional 1.4 MB upgrade || colspan="2" | 1.4 MB; optional second 1.4 MB
|-
|-
| Maximum power || II and IIx '''220&nbsp;W'''; IIfx '''230&nbsp;W''' (neither includes the monitor)
| Hard drive || colspan="3" | Optional internal 40, 80 or 160 MB
|-
|-
| Battery || replace if below '''3.2&nbsp;V'''
| I/O || colspan="3" | SCSI 5 MB/s, eight devices maximum; two ADB; two RS-232/RS-422 serial (mini DIN-8); six NuBus slots; processor-direct slot listed under Expansion
|-
| Sound || colspan="3" | Apple sound chip, 8-bit stereo sampling at 44.1 kHz, four-voice wavetable synthesis
|-
| Power || colspan="2" | 100-240 V AC auto-configured, 48-62 Hz, 220 W maximum excluding monitor || 230 W maximum excluding monitor
|-
| Size and weight || colspan="3" | 5.5 × 18.7 × 14.4 in (14.0 × 47.4 × 36.5 cm); 24 lb (10.9 kg) without hard drive
|}
|}


== Contents ==
== 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 (p. 3)
 
* Specifications: Processor, Memory, Disk Storage, I/O Interfaces, Sound and Video, Electrical, Physical (pp. 5-12)
* '''Basics''' &mdash; Overview (pdf p. 3)
* Troubleshooting: General (p. 14); symptom charts for Error Chord, System, Video, Floppy Drive, Hard Drive, Peripherals and Miscellaneous (pp. 15-31)
* '''Specifications''' &mdash; Processor (pdf p. 5), Memory (pdf p. 7), Disk Storage (pdf p. 8), I/O Interfaces (pdf p. 9), Sound and Video (pdf p. 10), Electrical (pdf p. 11), Physical (pdf p. 12)
* Take Apart: Cover (p. 33), Power Supply (p. 36), Floppy Drive (p. 38), Hard Drive (p. 40), Drive Mount (p. 44), Hard Drive Data Cable (p. 47), Logic Board (p. 49)
* '''Troubleshooting''' &mdash; General (pdf p. 14), Symptom Charts (pdf p. 15)
* Upgrades: Mac IIx Logic Board Upgrade (p. 54), Mac IIfx Logic Board Upgrade (p. 56), PMMU Upgrade for Macintosh II (p. 58), 1.4 MB Floppy Drive Upgrade for Macintosh II (p. 61)
* '''Take Apart''' &mdash; Cover (pdf p. 33), Power Supply (pdf p. 36), Floppy Drive (pdf p. 38), Hard Drive (pdf p. 40), Drive Mount (pdf p. 44), Hard Drive Data Cable (pdf p. 47), Logic Board (pdf p. 49)
* Additional Procedures: Battery Verification (p. 69), Battery Replacement (p. 71), Battery Holder Board (p. 74), Macintosh IIfx SCSI Termination (p. 80)
* '''Upgrades''' &mdash; Mac IIx Logic Board Upgrade (pdf p. 54), Mac IIfx Logic Board Upgrade (pdf p. 56), PMMU Upgrade for Macintosh II (pdf p. 58), 1.4 MB Floppy Drive Upgrade for Macintosh II (pdf p. 61)
* Exploded View (p. 87)
* '''Additional Procedures''' &mdash; Battery Verification (pdf p. 69), Battery Replacement (pdf p. 71), Battery Holder Board (pdf p. 74), Macintosh IIfx SCSI Termination (pdf p. 80)


== Notable content ==
== What it settles ==
''Additional Procedures'' carries '''Macintosh IIfx SCSI Termination''', which is the source of the IIfx's distinctive black terminator requirement, and a '''Battery Holder Board''' replacement that no other volume has. Larry Pina's ''Macintosh II Repair and Upgrade Secrets'' measures the same cells independently and agrees with Apple's threshold: Tadiran 3.6&nbsp;V lithium cells read '''3.2&ndash;3.85&nbsp;V''' when good, 2.3&ndash;3.1&nbsp;V when weak and are dead below 2.3&nbsp;V.
* Batteries: two lithium cells on the logic board; replace any that reads below 3.2 V on the 10 V DC range (p. 70). A Macintosh II or IIx with soldered batteries gets a battery holder board before new cells are fitted: cut the old leads, desolder with an iron of 50 W or less, and fit the holder with its positive side in the holes marked positive (pp. 74-79).
* NEC SIMMs: Apple-labelled SIMMs made by NEC with a date code of 9052 or earlier cause the error chord, failure to boot, ghosting or lost video, hangs and ID errors; Apple's cure is to replace them (pp. 15-31).
* Thermal shutdown: with blocked vents the thermal protection circuit shuts the system down; it recovers after 30-40 minutes (p. 17).
* PMMU upgrade for the Macintosh II: prise out the HMMU and fit a PMMU in the same socket, dot to dot (pp. 58-60).
* 1.4 MB floppy upgrade for the Macintosh II: replace the four ROMs with 342-0639 (HI, C13), 342-0640 (MED HI, C12), 342-0641 (MED LO, E13) and 342-0642 (LO, E12), replace the IWM with a SWIM, and use system software 6.0.2 or later. Apple notes the kit is no longer available and that a IIx or IIfx logic board is the alternative (pp. 61-67).
* IIfx SCSI termination: external chains end in one SCSI Cable Terminator II, never more than one; an internal SCSI filter supplies termination capacitance for third-party drives and Apple drives shipped before 19 March 1990; a IIfx shipped without a hard drive has a termination block and filter on the logic board connector, and the filter moves to the drive when one is fitted (pp. 80-85).
* Exploded-view part numbers: logic boards 661-0528 (II), 661-0529 (IIx), 661-0522 (IIfx); power supply 661-0375 (II, IIx), 661-0542 (IIfx); floppy drives 661-0345 (800K) and 661-0474 (1.4 MB); 40 MB hard drive 661-0216 (p. 87).


== What this manual does not contain ==
== What this manual does not contain ==
* No schematic, no board-level parts list and no component values.
No schematic, no component values and no parts list below module level. There are no power-supply voltages, tolerances or adjustments, and no per-slot NuBus power figures.
* The NuBus and PDS power budgets are not broken out per slot in this volume the way they are in the Quadra 840AV manual.


== Pages that cite this document ==
== Pages that cite this document ==
* [[Macintosh II]]
* [[Macintosh II]], [[Macintosh IIx]], [[Macintosh IIcx]], [[Macintosh IIfx]]
* [[Macintosh IIx]]
* [[Battery Refurbishment]]
* [[Macintosh IIfx]]
* [[Macintosh II Repair and Upgrade Secrets]]
* [[Macintosh II Repair and Upgrade Secrets]] &mdash; independent measurement of the same battery


<pdf> File:Macintosh_ii.iix.iifx.pdf </pdf>
<pdf> File:Macintosh_ii.iix.iifx.pdf </pdf>
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