Which is + and which - on this tablet board ?

Discussion in 'General Electronics Chat' started by UnnamedUser159, Jun 15, 2016.

  1. UnnamedUser159

    Thread Starter Member

    May 3, 2016
    130
    0
    Hi there.

    Have here one tablet
    Prestigio PER5274B

    It comes to me without battery.

    Have here one battery which is with acceptable capacity and want to solder it to the board.
    The board is htc c037 v4.2 20121214

    I`ve tried with the model of the board + schematic but in first page of Google didn`t find anything.

    Thanks;
     
  2. bushrat

    Member

    Nov 29, 2014
    97
    22
    Last edited: Jun 15, 2016
  3. wayneh

    Expert

    Sep 9, 2010
    12,114
    3,039
    Are there any polarized components visible on the board, or do any of the traces have a ground connection? Sometimes you can infer the polarity of the major traces on the board.
     
  4. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,769
    969
    Yep.. I would use a multimeter (continuity mode) to check 1 pin of the battery connector and see if its attached to the ground plane or any other traces labeled as negative..
     
  5. UnnamedUser159

    Thread Starter Member

    May 3, 2016
    130
    0
  6. bug13

    Well-Known Member

    Feb 13, 2012
    1,208
    38
    I am guessing the one on the golden trace is ground (negative)
     
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