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How do I hook this up to my computer?

Discussion in 'General Electronics Discussion' started by DcWHaT, Dec 30, 2013.

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  1. DcWHaT

    DcWHaT

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    Dec 30, 2013
    Hey all i bought a beatmania turn table, and i want to know how to i hook it up to my computer, im sure there is a way, but im guessing that through the board it went to the main board. I dont know the board outputs data to convert it to usb. I added a picture, the prong with 5 plugs go to the encoder on the turntable, the other 6 i have no idea. I have put 5 volts where it says + and negitive to the right prong and i get a red led, then 2nd front right i get the next red led. Thank you If you need more pictures let me know.
     

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  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    do you have a manual? I can't see much that tells me what connects to what.

    What you may need is a usb sound card and to interface the output of this turntable to it.
     
  3. DcWHaT

    DcWHaT

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    Dec 30, 2013
    No I wish I did. I do know that it is in Japanese, so even if I would acquire one I would have a hard time translating it. The turntable is from an arcade called beatmania 3 btw.
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    All I can suggest is that you try to get a manual. Even if it is in Japanese, it may have technical diagrams we can interpret.

    Is it a turntable, or is it some sort of game control?
     
  5. KrisBlueNZ

    KrisBlueNZ Sadly passed away in 2015

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    What kind of output connectors does it have? Are they RCA Phono plugs? Do they plug into an amplifier?

    If so, as Steve says, you'll need a sound card to convert the analogue voltage signals from the turntable into digital so your computer can process them.

    A manual would be very helpful.
     
  6. DcWHaT

    DcWHaT

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    Dec 30, 2013
    I'll try to find the manual, it's a game control, I have no idea what it plugs into I through tot plugged into the main board but I'm not sure now.
     
  7. DcWHaT

    DcWHaT

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    Dec 30, 2013
    How does this encoder work?

    http://www.mtl.co.jp/liste/seihin/se-17_series/se-17_series.pdf

    It has this on it could I just wire this or do I need something else. I can scrap the board.
     
    Last edited by a moderator: Dec 31, 2013
  8. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    How does it work, or what does it do?

    It works by changing the amount of light that the phototransistor receives as the shaft rotates.

    What it does is output a signal that goes through one complete cycle each rotation.

    Note that the output is not truly AC, there will be a DC bias. Also the exact output depends on the load and power supply connections. You can't use this to detect position or direction very well because the same voltage will appear at 2 positions and continuous rotation in either direction produces the same signal.
     
  9. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    That would have been very useful information. I thought it was an actual turntable that you were trying to interface to a computer.

    The answer is to connect it to the console it's designed for.

    Failing that, you'll have to get specs on the unit or the game controller interface.
     
  10. DcWHaT

    DcWHaT

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    Dec 30, 2013
    yeah i figured I wanted to use the rotary encoder, i know there is a way because there is a company that makes complete kits, they 300+ i dont wanna spend that kinda money. But i send pictures of what it is. Get an idea. I will rig up an old mouse and use optic sensors thank you all for you help. If you can think of anything else please hit me up.
     

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