Macintosh 128k Sad Mac Error Code 040200 @JDW-
Macintosh 128k Sad Mac Error Code 040200  @JDW-
Uploaded January 2012 | Updated September 2026, 2 weeks ago
I got this error code when I fired up my Macintosh 128k today. I purchased the board from someone on EBAY years back but never tested it because the purchase included another 512k board that always worked. The electrolytic caps on the board have leaked, so could that have been the root cause?

You can see a photo of the board on Flickr here:
flickr.com/photos/66071596@N00/2391525329
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Macintosh 128k Sad Mac Error Code 040200

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