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Recent content by theletter0xff

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    Problems with Quadra 610 ; Dead Board and Unusual PSU

    Im working on my centris 610, just got to the TDK power supply, I havent edited the pictures or measured the caps to add to caps.wiki yet; regardless here is the list of values and locations from mine: Q610, Q660 TDK MSE103 Apple 614-0022 Fan Controller PCB C201, C202 33uF 35v PCB Daughter...
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    IIsi power supply won't turn off, I'm deep in schematic land

    Amazing work, thank you for your this! several of those daughter cards caused the population of my currently-beyond-repair heap to grow; do you have any completed boards available? What would be the minimum circuit needed to test the cards without a power supply? Does the spacing match any...
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    Macintosh Quadra 700 Battery Leakage

    oh a second resurrection .. I also have a battery bombed Q700, the crystal oscillator at Y6 lost a leg to rust; I do not know if I will be successful grinding away the housing to solder on a jumper. It took a while to find its specs so: Y6 & Y5 Crystal Oscillator, clock xtal, 32.768Khz, smd...
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    AppleCD 150 (Sony CDU-541-25 1x Caddy CDROM) Repair

    wonderful, much better google-fu than I. Much appreciated, one step closer to installing A/UX... And I'm guessing bitsavers as the source; to help increase hits https://bitsavers.computerhistory.org/pdf/sony/cdrom/CDU541-25_AppleCD_150/
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    AppleCD 150 (Sony CDU-541-25 1x Caddy CDROM) Repair

    While trying to service an AppleCD 150 (Sony CDU-541-25), I found a cracked component at C315 that I cannot identify. Assistance in identifying a suitable replacement would be appreciated.
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    Recreateing the Apple TechStep

    would it be possible to build test suites for other 68k macs, or even PPC? it would be very cool to be able to test the quadras. have the roms been decompiled? Or is there already a way to run specific tests on unsupported macs, for example the floppy controller test?
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    Design68: A 65% replacement keyboard using AppleDesign controllers

    Thanks for the info, I would need much practice with kicad to modify this to use the ADB contoller and add arrows and other keys that are nice for A/UX. ALPS 60% keyboard PCB https://github.com/tmk/alps64 I dont need 5 MX switch PCBs either, just one, if someone is planning on ordering a set.
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    Design68: A 65% replacement keyboard using AppleDesign controllers

    How difficult would it be to add Alps switch pads to the ANSI PCB? I've spent all of 10 minutes in kicad so I have no ability to gauge the effort. I do have enough broken keyboards to harvest a complete set of switches, and I just think it would be very cool to have a 68% with alps switches and...
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