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A Happy Mac is the normal bootup (startup) icon of an Apple Macintosh computer running older versions of the Mac operating system. It was designed by Susan Kare in the 1980s, drawing inspiration from the design of the Compact Macintosh series and from the Batman character Two-Face . [ 10 ]
It was the first new Power Mac model after the release of the iMac, and shared the iMac's blue-and-white color scheme. Inside the enclosure, the logic board is mounted on a folding "door", which swings down onto the desk for tool-free access to all the internal components. [24]
Structurally, capacitors consist of electrodes separated by a dielectric, connecting leads, and housing; deterioration of any of these may cause parameter shifts or failure. Shorted failures and leakage due to increase of parallel parasitic resistance are the most common failure modes of capacitors, followed by open failures.
An analog board is a circuit board that contains the majority of analog circuitry in certain Apple Macintosh computers. The analog board was one of two circuit boards within many early Macintosh computers, including the Macintosh 128K/512K/Plus, Macintosh SE series, and Macintosh Classic series. The analog board contained several capacitors, a ...
Louis Anthony Rossmann (born November 19, 1988) [3] [4] is an American independent electronics technician, YouTuber, and right to repair activist. He is the owner and operator of Rossmann Repair Group in Austin, Texas (formerly New York City), a computer repair shop established in 2007 which specializes in logic board-level repair of MacBooks.
The screen brightness dial on this bezel was also removed in favor of a software control. This broad, curved front bezel became a signature of Apple product design for much of the 1990s. [22] The logic board, the central circuit board of the computer, is based on the Macintosh SE design. [23]
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Macintosh Classic II main board. The main board from the Classic II (left) contains the logic for the system. High voltage components such as the PSU and CRT driver circuitry were on a separate "analogue" board. The 68030 CPU can be seen on the right, which is next to the FPU/ROM expansion slot.