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DT 9205A digital multimeter

Discussion in 'Troubleshooting and Repair' started by Emonrj, Oct 5, 2017.

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  1. Emonrj

    Emonrj

    1
    0
    Oct 5, 2017
    I cant repair its switch. I can not find out the right position of pins. Pls help me if anyone can...
    Thanks.
     

    Attached Files:

  2. Terry01

    Terry01

    206
    48
    Jul 5, 2017
    Google "DT 9205A schematic" buddy. You'll get all the info you need there.
     
  3. FuZZ1L0G1C

    FuZZ1L0G1C

    368
    117
    Mar 25, 2014
    Try to download a schematic of the DMM.
    On the schematic, trace the switch functions vs positions and which components they go to.
    Follow the same paths on the PCB switch-tracks.
    Now you can see which circular tracks should be bridged when.
    From there you can align the contacts correctly.
    Some meters also have a 'key', or matching hole/bump for correct alignment.
     
  4. dorke

    dorke

    2,342
    665
    Jun 20, 2015
    Actually you can simply try and discover the correct position to match the writing on the case.
    The switch is a 360 degrees rotatory one,turn it and try to find the diode/continuity position.

    Do this:
    Insert test leads and short them permanently together.
    Rotate the switch till you hear the continuity beep sound.
    Congratulations your meter is oriented.:)
     
    bushtech, FuZZ1L0G1C and Terry01 like this.
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