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  1. #1
    Junior Member
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    Jan 2007
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    Squeezebox Schematic

    Hi,

    I'm just wondering if anyone has a copy of the squeezebox schematic? The seanadams.com link doesn't work anymore and i cant seem to find a copy anywhere else on the net.

    Thanks a lot,

    Sam

  2. #2
    Senior Member funkstar's Avatar
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    have a traul though the archives

    http://web.archive.org/web/*/http://seanadams.com

  3. #3
    Senior Member Skunk's Avatar
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    Yeah, I have wondered how much crap I could attach to the side of my house before raising eyebrows at the PC...

    ( dac.pdf didn't get archived, as far as I could tell )

  4. #4
    Junior Member
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    thanks for the link, couldn't seem to find the schematic anywhere though...

    I was kind of hoping someone might have kept a copy. I'm about to try a few mods on my SB3, and figured the schematic would more than likely come in handy at some point. Oh well, looks like ill be figuring things out the hard way. I have the schem for the output stage of the SB2 as a backup.

    Thanks anyway,

    Sam

  5. #5
    Founder, Slim Devices seanadams's Avatar
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    The full schematics have never been released. However, I'm usually happy to answer specific questions.

  6. #6
    Senior Member
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    Like the new title Sean, sounds very impressive ;-)

    Strange that there was such a stink in the forums over the Logitech aquisition and this is the first change that I've actually noticed.

  7. #7
    Junior Member
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    Quote Originally Posted by seanadams View Post
    The full schematics have never been released. However, I'm usually happy to answer specific questions.
    Hi Sean,

    I'd like to fit a Newava S22083 1:1 in the SPDIF out circuit.
    Whats the output impedance of the chip used for the spdif, also is there a coupling cap on the output?

    Also noticed theres the KE grade dac chip already fitted in my SB3 which was a surprise is there a circuit diagram for the regulation we can look at? I currently run an external supply using one of ALW super regs with a LM1084 as the pre reg thats running the SB3, I was thinking of running the dac's 5v from the 5v input dc socket so bypassing the internal switcher and the internal 5v linear reg(if worth the time) also is the 3.3v reg for the dac run off the 5v reg for the dac or is it run from the switcher?
    Sorry for all the questions

    Kind Regards
    Leo
    Last edited by leo:); 2007-01-07 at 04:17.

  8. #8
    Senior Member
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    Quote Originally Posted by leo:) View Post
    Hi Sean,
    also is there a coupling cap on the output?
    Yes there is, I removed it today and placed a 1:1 pulse transformer, connected it directly to the chip (follow the lead from the cap to the flipflop chip).

  9. #9
    Junior Member
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    Quote Originally Posted by tingtong5 View Post
    Yes there is, I removed it today and placed a 1:1 pulse transformer, connected it directly to the chip (follow the lead from the cap to the flipflop chip).
    Cheers for that hows it sounding now, any better?
    Also what pulse transformer you using?

    As you can see my SB3 already has a PCM1748KE grade already fitted
    Last edited by leo:); 2007-01-31 at 05:25.

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