Josh: 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.

2026-09-24T21:32:37Z

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.

← Older revision		Revision as of 22:32, 24 September 2026
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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'' — 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).</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 — 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: 100–240 V AC, 47–63 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]].~~

	~~== Capacitor Replacement Guide~~ ==

	~~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 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:

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

	~~Common issues including power supply failures, CRT problems~~, and ~~capacitor-related failures are covered in the [[~~Macintosh LC 575 Troubleshooting~~]] guide~~.		'''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 ==		== 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 ==		== Service Documentation ==

	~~The official~~ Apple Service Source ~~documentation for this model~~:		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>		<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}}

Josh: Add Service Documentation section with embedded Apple Service Source PDF

2026-02-10T11:12:38Z

Add Service Documentation section with embedded Apple Service Source PDF

← Older revision		Revision as of 12:12, 10 February 2026
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	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 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.

			== Service Documentation ==

			The official Apple Service Source documentation for this model:

			<pdf width="800" height="500">File:Lc_520.550.575.pdf</pdf>

	== See Also ==		== See Also ==

Josh: Create Performa 575 article (LC 575 rebrand)

2026-02-10T10:49:03Z

Create Performa 575 article (LC 575 rebrand)

New page

{{Infobox computer
| name = Macintosh Performa 575
| image = [[File:Macintosh LC 575.jpg]]
| caption = Macintosh Performa 575
| manufacturer = Apple Computer, Inc.
| type = All-in-one Personal Computer
| release date = February 2, 1994
| discontinued = April 3, 1995
| price = US$1,599
| cpu = Motorola 68LC040 @ 33 MHz
| memory = 5 MB RAM (expandable to 36 MB)
| storage = 250 MB SCSI hard drive, 2X CD-ROM drive
| display = 14" Sony Trinitron color CRT (640×480 pixels)
| sound = Stereo 16-bit, 44.1 kHz
| dimensions = 16.5" H × 13.2" W × 16.25" D (419 × 335 × 413 mm)
| weight = 38.4 lbs (17.4 kg)
| os = System 7.1.1 – Mac OS 8.1
| predecessor = [[Macintosh Performa 550|Performa 550]]
| successor = [[Macintosh Performa 580|Performa 580]]
| codename = Optimus
| model = 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 [[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>

== Hardware ==

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)
* '''RAM:''' 5 MB (4 MB soldered + 1 MB SIMM), expandable to 36 MB
* '''Storage:''' 250 MB SCSI hard drive
* '''Optical:''' 2X CD-ROM drive
* '''Modem:''' Internal modem (Comm Slot)
* '''Display:''' 14" Sony Trinitron CRT (640×480, 256 colors standard)

=== Bundled Software ===

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

== Related Models ==

The Performa 575 shares identical hardware with:
* '''[[Macintosh LC 575]]''' – Education market version
* '''[[Macintosh Performa 577|Performa 577]]''' – 320 MB hard drive
* '''[[Macintosh Performa 578|Performa 578]]''' – 8 MB RAM, 320 MB hard drive

== General Maintenance ==

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]].

== Capacitor Replacement Guide ==

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]].

== Troubleshooting ==

Common issues including power supply failures, CRT problems, and capacitor-related failures are covered in the [[Macintosh LC 575 Troubleshooting]] guide.

== Retrobrite ==
{{Main|Retrobrite}}
The Performa 575's beige plastics yellow from UV exposure. Restoration techniques are detailed on the [[Retrobrite]] page.

== 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.

== See Also ==

* [[Macintosh LC 575]] – Base model (education market)
* [[Macintosh Performa 577]] – 320 MB hard drive variant
* [[Macintosh Performa 578]] – 8 MB RAM variant
* [[Macintosh LC 580]] – Successor model

[[Category:Apple Vintage Computers]]
{{Navbox-AppleVintage}}

Macintosh Performa 575 - Revision history

Josh: Add Service Documentation section with embedded Apple Service Source PDF

Josh: Create Performa 575 article (LC 575 rebrand)