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  • Drok
    Keymaster
    July 14, 2016 at 2:03 am
    Post count: 2971
    in reply to: 5W low Profile Amplified Subs Woofer Low-pass Filter Subwoofer Frequency Circuit #6377

    Hello henry,
    Thank you for your understanding.
    Here is the schematic for you:
    schematic_090159
    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 14, 2016 at 1:51 am
    Post count: 2971
    in reply to: DROK® TDA8920 Subwoofer #6375

    Hello Robert Trapp,
    We are so glad that the product can meet your demand.
    If you have any questions, please feel free to contact us.
    Best regards

    Drok
    Keymaster
    July 14, 2016 at 1:31 am
    Post count: 2971
    in reply to: USB Meter (USB3.0 Meter (H)) not measuring any current #6373

    Hi Michael,
    Thank you for writing in.
    Could you please tell us your order ID or the link of the product,so that we can ensure which product you are referring to?
    It is better that you can tell us more details of your operation, such as the input voltage/current, the load, the wiring, the working environment.
    If you can, we sincerely hope that you can send us some images to let us check the problem details.
    You can send this information to us by email (service at droking dot com).
    With your help, we can find a solution more quickly.
    Looking forward to hearing from you.
    Best regards

    Drok
    Keymaster
    July 13, 2016 at 2:07 am
    Post count: 2971
    in reply to: 5W low Profile Amplified Subs Woofer Low-pass Filter Subwoofer Frequency Circuit #6340

    Hello henry,
    You’re welcome.
    This information is from our technical team.
    So sorry that we cannot provide a schematic for you.
    Beg your understanding.
    Best regards

    Drok
    Keymaster
    July 13, 2016 at 2:04 am
    Post count: 2971
    in reply to: TDA7498 2x100w amp question #6339

    Hello Bob,
    Thank you for writing in.
    The two audio inputs of this products are 3.5mm interfaces.
    input interface_110047
    You can use a 3.5mm to 3.5mm adapter to connect your iPhone to the amp board.
    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 13, 2016 at 1:33 am
    Post count: 2971
    in reply to: Wiring diagram NOT #6335

    Hello Dave Coulam,
    Thank you for writing in.
    Since many products are with similar module number, it is hard for us to ensure the product you have purchased.
    Could you please tell us your order ID or the link of the product?
    With your help, we can find a solution more quickly.
    Looking forward to hearing from you.
    Best regards

    Drok
    Keymaster
    July 12, 2016 at 6:35 am
    Post count: 2971
    in reply to: DROK® TDA8920 Subwoofer #6323

    Hello Robert Trapp,
    Thank you for writing in.
    GND terminal on the board is the reference point in audio circuit, but not the ground wire of AC ground from the wall.
    Therefore, the GND terminal cannot be connected to the AC ground from the wall.
    This amp board needs DC dual power supply board, this power converter board may be not suitable for your application.
    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 12, 2016 at 3:50 am
    Post count: 2971
    in reply to: 3-34v Boost Voltage Converter – LED Failure #6320

    Hello F. David Cook,
    Thank you for writing in and detailed description.
    But it is better that you can send us some images of your wiring and the backside of the module to let us check the problem details.
    With your help, we can find a solution more quickly.
    You can send this information to us by email(service at droking dot com)
    Looking forward to hearing from you.
    Best regards

    Drok
    Keymaster
    July 12, 2016 at 3:18 am
    Post count: 2971
    in reply to: D3806 – Need Instructions #6318

    Hello Steve S,
    Thank you for your reply.
    Here is the Instruction for you:
    Instruction_200151
    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 12, 2016 at 3:04 am
    Post count: 2971
    in reply to: Super Capacitor Charging #6316

    Hello Steve,
    Thank you for your reply.
    Yes, the product can be applied to charge for the 16V supper caps.
    Hope this can help you.
    If you have any questions, please feel free to contact us.
    Best regards

    Drok
    Keymaster
    July 12, 2016 at 2:42 am
    Post count: 2971
    in reply to: 5W low Profile Amplified Subs Woofer Low-pass Filter Subwoofer Frequency Circuit #6315

    Hello henry,
    Thank you for your reply and information.
    The slope of the low-pass filter is 24db/octave.
    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 12, 2016 at 2:10 am
    Post count: 2971
    in reply to: LED control on boat #6314

    Hello Eric,
    Thank you for writing in.
    If you need a converter to power a LED, it is recommended that the converter should be have constant current function.
    But this product do not have the constant current function, which is not suitable for your application.
    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 11, 2016 at 4:05 am
    Post count: 2971
    in reply to: Display and Control Mounting for Boost Converter #6291

    Hello Matt,
    Thank you for writing in.
    Here is the dimension for this product.
    Dimension_200150

    The onboard serial interface cannot be connected to a remote display or control.
    Beg your understanding.
    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 11, 2016 at 3:37 am
    Post count: 2971
    in reply to: USB Multimeter Comparison #6288

    Hello Stephen,
    Thank you for your interest in our product.
    The module 200180 is 6in1 LCD multimeter ( voltage, current, temperature, capacitance, energy, and time), supports QC 2.0/3.0 fast charging and multiple protection.
    The module 180020 is 4in1 OLED multimeter (voltage, current, power,capacitance)
    Besides, #200180 has the function of automatically cutting off when the device is full charged, which may be meet your need.
    Here are the instruction of these two products:
    #200180
    Instruction_200180
    #180020
    Instruction_180020

    Hope this can help you.
    Best regards

    Drok
    Keymaster
    July 11, 2016 at 3:11 am
    Post count: 2971
    in reply to: D3806 – Need Instructions #6287

    Hello Steve S,
    Since many products are with similar module number, it is hard for us to ensure the product you are referring to.
    Could you please tell us your order ID or the link of the product?
    With your help, we can find a solution more quickly.
    Beg your understanding.
    Best regards

  • Author
    Posts
Viewing 15 posts - 2,461 through 2,475 (of 2,965 total)
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