What is this un-used 4 pin connector?

Discussion in 'TiVo Series3 HDTV DVRs' started by MeInDallas, Oct 19, 2011.

  1. MeInDallas

    MeInDallas Member

    Jul 31, 2011
    Dallas, Texas
    I was wondering, and I havent found anything about this, and wanted to see if anyone knows . . . does anyone have any clue what this 4 pin connector on the TiVo Series 3 652160 model is for? There's never been anything connected to it but I was wondering could it be for another fan? When it was unplugged I put a 4 pin plug on there from an Intel fan just to see if it would fit and it does, but I'm not going to turn it on and fry my TiVo. Also TiVo is clueless about it or they just dont want to tell me.

    Any ideas? :confused:

    Attached Files:

  2. smbaker

    smbaker Well-Known Member

    May 24, 2003
    I see the letters "TX G RX" next to it. I'm guessing it's a TTL-level serial port.
  3. Soapm

    Soapm Active Member

    May 9, 2007
    Aurora, CO
    Is that for those cables Omikron used to sell for the S3's?
  4. unitron

    unitron Well-Known Member

    Apr 28, 2006
    semi-coastal NC
    As I said elsewhere:

  5. mr.unnatural

    mr.unnatural Well-Known Member

    Feb 2, 2006
    The S3 doesn't have an external serial connection similar to previous models. The header is an internal serial port connection. I believe the 4th pin is unused.

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