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    Quadra 610 - C54 and C33

    I'm trying to restore a Quadra 610 with obviously failed caps. I've replaced the captors, but no boot, not chime, etc. While poking around on the board I noticed that the positive pad on C53 and C33 are connected to ground. Is that normal? And, I'm something of a noob to the hobbyist...
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    Quadra 610 - Onboard Video Ram?

    I have a Quadra 610 I'm working on. No battery leakage, but obvious failed caps. I've replaced all the caps, but afterwords the machine doesn't boot, no startup chime and no video. I've found conflicting information online as to if the 610 has any onboard video ram. Looking at the motherboard...
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    Quadra 610 - Component at RC6

    I've got a Quadra 610 machine I'm working on, and while cleaning the pads on the capacitors I removed I noticed that the 11th pin on the chip at RC6 (assuming I have orientation right) nearest to the negative side of C46 is completely *missing*. I see the pad, but wither thou goest, leg? I have...
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    AppleCD 300i 2x Drive Gear

    I've got what appears to be an otherwise working AppleCD 300i 2x CD-ROM drive from a Performa 6116CD. The laser assembly shuttle doesn't move properly, and I've found that the nylon drive gear is cracked - suspecting that's interfering with things. Does anyone know of a 3D-printed replacement...
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    Macintosh Classic II and System 7.5.3

    I've got a Macintosh Classic II with a SCSI2SD adapter. The drive initializes without issue using the patch HD SC setup utility, but when trying to install System 7.5.3 via the Apple images, the installation always fails with: Dragging a system folder to the disk renders it bootable without...
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    Classic II 1.44MB Floppy Drive

    The 1.44MB floppy drive in my Classic II wasn't reading disks reliably, so I cleaned the heads. I'm worried that I may have lifted the head too high, as the top head now no longer gets close enough to the disk surface to read. Outwardly, it appears to be in position, but it isn't - it won't read...
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