{"id":231,"date":"2021-02-10T16:29:25","date_gmt":"2021-02-10T16:29:25","guid":{"rendered":"https:\/\/mac84.net\/web\/?page_id=231"},"modified":"2024-02-13T00:14:04","modified_gmt":"2024-02-13T00:14:04","slug":"macintosh-lc-series-lc-lc-ii-lc-iii-power-supply-recapping-guide-astec-usa","status":"publish","type":"page","link":"https:\/\/mac84.net\/web\/macintosh-lc-series-lc-lc-ii-lc-iii-power-supply-recapping-guide-astec-usa\/","title":{"rendered":"Macintosh LC series (LC, LC II, LC III) Power Supply Recapping Guide (ASTEC, USA) Model AA16251"},"content":{"rendered":"\n

This guide will help you recap your Macintosh LC series power supply. This guide is for ASTEC<\/strong> model AA16251<\/strong> brand power supply from a Macintosh LC III sold in the USA. Similar power supplies may also be present in some LC, LC II, Performa 400 series, Quadra 605 or the Apple Interactive Television STB.<\/p>\n\n\n\n

Important Note About Different Models:<\/strong>
Over the years these Macs shipped with different power supplies.
Please do NOT<\/strong> assume this guide will be a perfect match for yours.
This guide <\/strong>covers the ASTEC<\/strong> model power supply shown in the photo, model AA16251, although different revisions may require different capacitors. A different guide for TDK model power supplies is here.<\/a><\/p>\n\n\n\n

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Recapping Diagram:<\/strong>
Click on the image to view the full-size JPEG, or click here to view a high-quality PDF printable version<\/strong><\/a>.

Note:<\/strong> Although you may not need to replace the 47uf \/ 25V capacitor<\/strong>, in my case it was leaking, so I did replace it. Be sure to check the condition of all capacitors before servicing them. Checking the underside of the board can also identify problematic or leaking capacitors.<\/p>\n\n\n\n

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Capacitors List:<\/strong>
Please see the table below for a list of capacitors for this model. The size details (in millimeters) below are for the original capacitor, this will help you find a replacement capacitor that should fit. These sizes are approximates and may not be exact.

Caution:<\/strong> Part numbers for these capacitors are provided as a courtesy only, use this information AS-IS at your own risk! Some have suggested that low-ESR capacitors are required for some switching power supplies, please keep this in mind when selecting replacement capacitors. Although I have taken care to produce this list, this information is being provided strictly AS-IS. You are responsible for doing your own research to confirm that these match the parts you need. I cannot be held responsible for typos or potential damage. This information is subject to change without notice.<\/p>\n\n\n\n

Capacitors that should be replaced:<\/strong><\/p>\n\n\n\n