DM900 Sim card connection info

Discussion in 'Schematic drawings, Pcb images etc..' started by Johnny B., Nov 3, 2020.

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  1. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    dm900-red-exclamation-mark.jpg

    Since I had a damaged U801 I/O chip (SN74CBTD3384CPW) I needed to figure out the connections between the sim card holder to this I/O chip to check if every connection were fine.
    So I had made a small schematic from it and I like (of course) to share it, just in case you need it.

    Click picture to see it fully..
    Dm900-simcard-connections-info.jpg

    FYI, These chip can also be found in the Dm800HD, DM800SE and DM500HD.