Macintosh Performa 275 Troubleshooting: Difference between revisions
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The '''Macintosh Performa 275''' is a [[Macintosh Performa]] rebadge of the '''Macintosh Color Classic II''' — the two are the same hardware, sold under different names and bundles.<ref name="perf">[https://lowendmac.com/2015/apples-performa-line-1992-to-1997/ "Apple's Performa Line, 1992 to 1997"], Low End Mac; [https://512pixels.net/2024/08/performa-month-the-first-updates/ "Performa Month"], 512 Pixels; and the corresponding model articles on Wikipedia. Source for the Performa-to-model equivalences.</ref> Because the logic board, analog board and power supply are identical, the '''[[Macintosh Color Classic II Troubleshooting]]''' page applies in full: use it for power, video, capacitor, storage and audio diagnosis. | |||
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The Performa 275 is the Color Classic II (an LC 550 logic board with a 33 MHz 68030 and full 32-bit bus in the Color Classic case), sold mainly outside the USA. Capacitor leakage is the dominant fault. | |||
== Common faults (shared with the Macintosh Color Classic II) == | |||
As with the Macintosh Color Classic II, the first steps on any un-serviced unit are to '''replace the electrolytic capacitors''' and inspect for '''PRAM-battery leakage''' and its corrosion, then confirm the power-supply rails. Full detail, test points and fixes are on '''[[Macintosh Color Classic II Troubleshooting]]'''. | |||
== Related pages == | |||
* [[Macintosh Color Classic II Troubleshooting]] | |||
* [[Macintosh Performa]] | |||
== References == | |||
<references /> | |||
[[Category:Apple Vintage Computers]] | |||
[[Category:Apple Troubleshooting Guides]] | |||