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How to get around safeguard of the SAMSUNG HDD drives

Discussion in 'General Electronics Discussion' started by darthuggla, Oct 6, 2016.

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  1. darthuggla

    darthuggla

    2
    0
    Oct 6, 2016
    Hi,

    I would like to make a grinder from the old hdd drive. Like on this movie



    I only have SAMSUNG hdd's. Unfortunately they all have safeguard which stops the engine after few seconds. It is probably because circuit is not detecting any incoming data from the head since I have removed the head. It would only disturb. I would like to use existing hdd circuit with some modifications (?)

    On the video above someone bypassed safeguard by connecting 5V with something on the board using cable (older SAMSUNG hdd).

    My hdd's have this board:
    [​IMG]

    Engine is controlled by the HA13627 controller.

    What can I do to prevent circuit from stoping the engine?

    My thoughts:
    1. May be there is a way to cross/apply voltage to some part and trick controller so it won't cut off power from the engine?
    2. May be there is a way to cut/remove some parts of the paths so controller will not get the message to stop the engine?
    3. May be there is a way to trick controller that it is getting data from the head by applying some voltage to the pins where the head was mounted?

    Could someone help me with that. I have no clue how to approach this topic. I will be grateful for any help.
     
    Last edited: Oct 6, 2016
  2. Alec_t

    Alec_t

    2,826
    756
    Jul 7, 2015
    A grinder using that motor would be seriously under-powered for most purposes. What are you intending to grind?
     
  3. darthuggla

    darthuggla

    2
    0
    Oct 6, 2016
    Hi Alec_t,

    I am gonna to grind some plastic parts.
    I am not gonna to stress it much.
    Besides I have many broken samsung hdd's.
    If one grinder fails I can replace it with another. They are only gathering dust on my shelf.
     
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