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Macintosh Performa 575: Difference between revisions

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Create Performa 575 article (LC 575 rebrand)
 
Correct the physical specs against Apple own Service Source, hosted here: dimensions were given as 16.5 x 13.2 x 16.25 in with wrong metric conversions, Apple says 17.9 x 13.5 x 16.5 in; weight was 38.4 lb, Apple says 40.5 lb. Add the 13-inch viewable screen size and 0.26 mm pitch, the Apple CD 300+ drive rather than 2X, the Communications Slot, the optional math coprocessor socket, and the 100-240 V universal supply. Repoint the three dead maintenance links at pages that exist. Refs render.
 
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| price        = US$1,599
| price        = US$1,599
| cpu          = Motorola 68LC040 @ 33 MHz
| cpu          = Motorola 68LC040 @ 33 MHz
| memory      = 5 MB RAM (expandable to 36 MB)
| memory      = 5 MB (Apple's figure for the board is '''4 MB on board''', expandable to 36 MB through one 72-pin SIMM socket)
| storage      = 250 MB SCSI hard drive, 2X CD-ROM drive
| storage      = 250 MB SCSI hard drive; internal '''Apple CD 300+''' CD-ROM drive; manual-inject 1.4 MB SuperDrive
| display      = 14" Sony Trinitron color CRT (640×480 pixels)
| display      = 14-inch diagonal Trinitron with a '''13-inch viewable''' screen, 0.26 mm aperture grille pitch, 640 × 480 at 70 dpi
| sound        = Stereo 16-bit, 44.1 kHz
| sound        = Stereo 16-bit, 44.1 kHz
| dimensions  = 16.5" H × 13.2" W × 16.25" D (419 × 335 × 413 mm)
| dimensions  = 17.9 in (45.5 cm) high × 13.5 in (34.4 cm) wide × 16.5 in (42.0 cm) deep, per Apple
| weight      = 38.4 lbs (17.4 kg)
| weight      = 40.5 lb (18.4 kg), per Apple
| power        = '''100–240 V AC universal supply''', 47–63 Hz, 120 W maximum — there is no voltage selector and no region-specific board
| os          = System 7.1.1 – Mac OS 8.1
| os          = System 7.1.1 – Mac OS 8.1
| predecessor  = [[Macintosh Performa 550|Performa 550]]
| predecessor  = [[Macintosh Performa 550|Performa 550]]
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}}
}}


The '''Macintosh Performa 575''' is an all-in-one personal computer released on February 2, 1994, as part of Apple's consumer-oriented Performa line. The Performa 575 is a rebrand of the [[Macintosh LC 575|LC 575]] configured for retail sale, featuring a 33 MHz Motorola 68LC040 processor, built-in 14-inch Sony Trinitron color display, and bundled consumer software.<ref>{{cite web |url=https://everymac.com/systems/apple/mac_performa/specs/mac_performa_575.html |title=Apple Macintosh Performa 575 Specs |publisher=EveryMac.com |access-date=2026-02-10}}</ref>
The '''Macintosh Performa 575''' is an all-in-one personal computer released on February 2, 1994, as part of Apple's consumer-oriented Performa line. The Performa 575 is a rebrand of the [[Macintosh LC 575|LC 575]] configured for retail sale, featuring a 33 MHz Motorola 68LC040 processor, built-in 14-inch Trinitron display, and bundled consumer software.<ref>{{cite web |url=https://everymac.com/systems/apple/mac_performa/specs/mac_performa_575.html |title=Apple Macintosh Performa 575 Specs |publisher=EveryMac.com |access-date=2026-02-10}}</ref>


== Hardware ==
== Hardware ==
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The Performa 575 uses the same logic board and chassis as the [[Macintosh LC 575]], differing only in configuration and bundled software:
The Performa 575 uses the same logic board and chassis as the [[Macintosh LC 575]], differing only in configuration and bundled software:


* '''Processor:''' Motorola 68LC040 @ 33 MHz (no FPU)
* '''Processor:''' Motorola 68LC040 at 33 MHz with a built-in MMU. There is no FPU in the 68LC040, but the board has a '''socket for an optional math coprocessor'''.<ref name="ss575">Apple Computer, ''Macintosh LC 520, 550, 575 Service Source'' &mdash; hosted on this wiki as [[:File:Lc 520.550.575.pdf]]. Specifications chapters: Processor (Motorola 68LC040 at 33 MHz with built-in MMU and a socket for an optional math coprocessor on the LC 575); Memory (4 MB of dynamic RAM on board, expandable to 36 MB with 100 ns or faster SIMMs through one 72-pin DRAM SIMM connector; 1 MB of ROM; 512K of VRAM on board expandable to 1 MB, with two VRAM SIMM slots on the LC 575); Disk Storage (manual-inject 1.4 MB SuperDrive, 80, 160, 250 or 320 MB SCSI hard drive, and the internal Apple CD 300+ CD-ROM drive on the LC 550 and LC 575); I/O Interfaces (two serial ports, one SCSI port, two ADB ports with a 500 mA maximum draw, the processor-direct slot, and the Communications Slot on the LC 575); Sound and Video (14-inch diagonal with a 13-inch viewable Trinitron screen, 0.26 mm aperture grille pitch, 640 by 480 at 70 dpi); Electrical (100&ndash;240 V AC universal supply, 47&ndash;63 Hz, 120 W maximum); and Physical (height 17.9 in / 45.5 cm, width 13.5 in / 34.4 cm, depth 16.5 in / 42.0 cm, weight 40.5 lb / 18.4 kg).</ref>
* '''RAM:''' 5 MB (4 MB soldered + 1 MB SIMM), expandable to 36 MB
* '''RAM:''' Apple specifies '''4 MB on board''', expandable to 36 MB with 100 ns or faster SIMMs through '''one''' 72-pin DRAM SIMM connector. The 5 MB retail figure is that 4 MB plus the SIMM Apple shipped in it.<ref name="ss575" />
* '''Storage:''' 250 MB SCSI hard drive
* '''Storage:''' 250 MB SCSI hard drive. Apple built this family with 80, 160, 250 or 320 MB drives, and a manual-inject 1.4 MB SuperDrive.<ref name="ss575" />
* '''Optical:''' 2X CD-ROM drive
* '''Optical:''' internal '''Apple CD 300+''' CD-ROM drive.<ref name="ss575" />
* '''Modem:''' Internal modem (Comm Slot)
* '''Communications Slot:''' 50-pin internal expansion for a modem or an Ethernet card &mdash; a feature of the LC 575 board that the LC 520 and LC 550 do not have.<ref name="ss575" />
* '''Display:''' 14" Sony Trinitron CRT (640×480, 256 colors standard)
* '''Display:''' 14-inch diagonal Trinitron, '''13-inch viewable''', 0.26 mm aperture grille pitch, 640 × 480 at 70 dpi. 512K of VRAM on board gives 256 colours; two VRAM SIMM slots expand it to 1 MB for 32,000 colours.<ref name="ss575" />
 
=== Electrical ===
 
'''The supply is universal: 100&ndash;240 V AC, 47&ndash;63 Hz, 120 W maximum.'''<ref name="ss575" /> There is no voltage selector switch and no region-specific power board, so an imported machine needs only the right lead. That is worth knowing, because several Apple all-in-ones of this era do have region-specific boards where it matters a great deal.


=== Bundled Software ===
=== Bundled Software ===
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* '''[[Macintosh Performa 578|Performa 578]]''' – 8 MB RAM, 320 MB hard drive
* '''[[Macintosh Performa 578|Performa 578]]''' – 8 MB RAM, 320 MB hard drive


== General Maintenance ==
== Maintenance, Troubleshooting and Recapping ==


The Performa 575 uses the same logic board and components as the LC 575. For maintenance procedures including cleaning, capacitor inspection, and preventive care, refer to [[Macintosh LC 575 General Maintenance]].
The Performa 575 is the same machine as the [[Macintosh LC 575]] &mdash; same logic board, same chassis, same power supply, same display. All of the service material lives on the LC 575 and LC family pages:


== Capacitor Replacement Guide ==
* '''[[Macintosh LC 575]]''' &mdash; the machine page, including the board's capacitor guidance and the service documentation.
* '''[[Macintosh LC Capacitor Replacement Guide]]''' &mdash; surface-mount electrolytic replacement for this generation of LC logic board.
* '''[[Macintosh LC 520/550/575 Service Source]]''' &mdash; Apple's own service manual, hosted here.<ref name="ss575" />
* '''[[CRT Discharge Procedure]]''' &mdash; read this before opening an all-in-one.
* '''[[Battery Explosion, Capacitor or Corrosion Damage]]''' &mdash; the PRAM battery in this family leaks and the damage is the reason many of these boards are dead.


Surface-mount electrolytic capacitors on the logic board require replacement due to age-related leakage. For specifications and procedures, see [[Macintosh LC 575 Capacitor Replacement Guide]].
'''The links this page used to carry &mdash; to "Macintosh LC 575 General Maintenance", "Macintosh LC 575 Capacitor Replacement Guide" and "Macintosh LC 575 Troubleshooting" &mdash; pointed at pages that do not exist on this wiki''', and so did the three Performa 575 redirects that fed them. They have been replaced with the pages that do.
 
== Troubleshooting ==
 
Common issues including power supply failures, CRT problems, and capacitor-related failures are covered in the [[Macintosh LC 575 Troubleshooting]] guide.


== Retrobrite ==
== Retrobrite ==
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== Technical Details ==
== Technical Details ==


For complete technical specifications including memory maps, I/O details, and custom chip information, see the [[Macintosh LC 575#Technical Details|LC 575 Technical Details]] section.
For the rest of the technical detail, see [[Macintosh LC 575]]. Apple's own specifications are in the Service Source hosted here.<ref name="ss575" />
 
== Service Documentation ==
 
Apple's own service manual for this machine, hosted on this wiki as [[Macintosh LC 520/550/575 Service Source]]:
 
<pdf width="800" height="500">File:Lc_520.550.575.pdf</pdf>
 
== References ==
 
<references />


== See Also ==
== See Also ==
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[[Category:Apple Vintage Computers]]
[[Category:Apple Vintage Computers]]
{{Navbox-AppleVintage}}
{{Navbox-AppleVintage|state=collapsed}}

Latest revision as of 22:32, 24 September 2026

Macintosh Performa 575
Macintosh Performa 575
Specifications
ManufacturerApple Computer, Inc.
TypeAll-in-one Personal Computer
ReleasedFebruary 2, 1994
DiscontinuedApril 3, 1995
Intro priceUS$1,599
CPUMotorola 68LC040 @ 33 MHz
Memory5 MB (Apple's figure for the board is 4 MB on board, expandable to 36 MB through one 72-pin SIMM socket)
Storage250 MB SCSI hard drive; internal Apple CD 300+ CD-ROM drive; manual-inject 1.4 MB SuperDrive
Display14-inch diagonal Trinitron with a 13-inch viewable screen, 0.26 mm aperture grille pitch, 640 × 480 at 70 dpi
SoundStereo 16-bit, 44.1 kHz
Power100–240 V AC universal supply, 47–63 Hz, 120 W maximum — there is no voltage selector and no region-specific board
Dimensions17.9 in (45.5 cm) high × 13.5 in (34.4 cm) wide × 16.5 in (42.0 cm) deep, per Apple
Weight40.5 lb (18.4 kg), per Apple
OS / FirmwareSystem 7.1.1 – Mac OS 8.1
PredecessorPerforma 550
SuccessorPerforma 580
CodenameOptimus
Model no.M1347

The Macintosh Performa 575 is an all-in-one personal computer released on February 2, 1994, as part of Apple's consumer-oriented Performa line. The Performa 575 is a rebrand of the LC 575 configured for retail sale, featuring a 33 MHz Motorola 68LC040 processor, built-in 14-inch Trinitron display, and bundled consumer software.[1]

Hardware

[edit | edit source]

The Performa 575 uses the same logic board and chassis as the Macintosh LC 575, differing only in configuration and bundled software:

  • Processor: Motorola 68LC040 at 33 MHz with a built-in MMU. There is no FPU in the 68LC040, but the board has a socket for an optional math coprocessor.[2]
  • RAM: Apple specifies 4 MB on board, expandable to 36 MB with 100 ns or faster SIMMs through one 72-pin DRAM SIMM connector. The 5 MB retail figure is that 4 MB plus the SIMM Apple shipped in it.[2]
  • Storage: 250 MB SCSI hard drive. Apple built this family with 80, 160, 250 or 320 MB drives, and a manual-inject 1.4 MB SuperDrive.[2]
  • Optical: internal Apple CD 300+ CD-ROM drive.[2]
  • Communications Slot: 50-pin internal expansion for a modem or an Ethernet card — a feature of the LC 575 board that the LC 520 and LC 550 do not have.[2]
  • Display: 14-inch diagonal Trinitron, 13-inch viewable, 0.26 mm aperture grille pitch, 640 × 480 at 70 dpi. 512K of VRAM on board gives 256 colours; two VRAM SIMM slots expand it to 1 MB for 32,000 colours.[2]

Electrical

[edit | edit source]

The supply is universal: 100–240 V AC, 47–63 Hz, 120 W maximum.[2] There is no voltage selector switch and no region-specific power board, so an imported machine needs only the right lead. That is worth knowing, because several Apple all-in-ones of this era do have region-specific boards where it matters a great deal.

Bundled Software

[edit | edit source]

The Performa 575 shipped with System 7.1.1 (with System Enabler 065) and included:

  • ClarisWorks 2.0
  • Quicken 4.0
  • Grolier's Encyclopedia
  • Educational titles
[edit | edit source]

The Performa 575 shares identical hardware with:

Maintenance, Troubleshooting and Recapping

[edit | edit source]

The Performa 575 is the same machine as the Macintosh LC 575 — same logic board, same chassis, same power supply, same display. All of the service material lives on the LC 575 and LC family pages:

The links this page used to carry — to "Macintosh LC 575 General Maintenance", "Macintosh LC 575 Capacitor Replacement Guide" and "Macintosh LC 575 Troubleshooting" — pointed at pages that do not exist on this wiki, and so did the three Performa 575 redirects that fed them. They have been replaced with the pages that do.

Retrobrite

[edit | edit source]

The Performa 575's beige plastics yellow from UV exposure. Restoration techniques are detailed on the Retrobrite page.

Technical Details

[edit | edit source]

For the rest of the technical detail, see Macintosh LC 575. Apple's own specifications are in the Service Source hosted here.[2]

Service Documentation

[edit | edit source]

Apple's own service manual for this machine, hosted on this wiki as Macintosh LC 520/550/575 Service Source:

References

[edit | edit source]
  1. ↑ Apple Macintosh Performa 575 Specs, EveryMac.com—link(accessed 2026-02-10)
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Apple Computer, Macintosh LC 520, 550, 575 Service Source — hosted on this wiki as File:Lc 520.550.575.pdf. Specifications chapters: Processor (Motorola 68LC040 at 33 MHz with built-in MMU and a socket for an optional math coprocessor on the LC 575); Memory (4 MB of dynamic RAM on board, expandable to 36 MB with 100 ns or faster SIMMs through one 72-pin DRAM SIMM connector; 1 MB of ROM; 512K of VRAM on board expandable to 1 MB, with two VRAM SIMM slots on the LC 575); Disk Storage (manual-inject 1.4 MB SuperDrive, 80, 160, 250 or 320 MB SCSI hard drive, and the internal Apple CD 300+ CD-ROM drive on the LC 550 and LC 575); I/O Interfaces (two serial ports, one SCSI port, two ADB ports with a 500 mA maximum draw, the processor-direct slot, and the Communications Slot on the LC 575); Sound and Video (14-inch diagonal with a 13-inch viewable Trinitron screen, 0.26 mm aperture grille pitch, 640 by 480 at 70 dpi); Electrical (100–240 V AC universal supply, 47–63 Hz, 120 W maximum); and Physical (height 17.9 in / 45.5 cm, width 13.5 in / 34.4 cm, depth 16.5 in / 42.0 cm, weight 40.5 lb / 18.4 kg).

See Also

[edit | edit source]