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    Color Classic Sound issue

    Hi All, Last year I converted a Color Classic into a Mystic (575 + VGA Mod) and there is this high pitched squeal coming from the machine. I originally thought it was the flyback transformer, but it's actually the sound circuit. When I unplug the speaker or plug headphones in the noise goes...
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    Color Classic VGA Mod Question

    Hi All, I'm about to perform the VGA mod (Option 1) on a color classic analog board and ran across a discrepancy with my boards revision: My board doesn't have J78 so the instructions say I have to disconnect (isolate) pin 20. However, at DD1, there appears to be a diode (M5C) where in the...
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    Mystic LC575 software mod

    Hi All, I picked up an LC575 motherboard to go with my color classic. I've done the software mod, using ResEdit modifying the boot process from 21->10 for gestalt id 99. This seems to have no effect as I'm always getting a bus error. I can probably rule out hardware error, since I've tried...
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    Mac Color Classic screen issue

    Hi All - I've purchased a Color Classic with a known display issue to fix. Anyone have any idea where I should start? From the reading I've been doing it would appear to be a degaussing circuit issue? Thanks in advance!
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