Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Using different power block?

Options
  • 16-10-2023 5:45pm
    #1
    flogen
    Moderators, Society & Culture Moderators Posts: 10,247 Mod ✭✭✭✭


    I’ve misplaced the power cable for a digital piano (it has a circular connection on the device end and a block plug on the other).

    I’ve found another plug that fits it, but before I actually try I wanted to see what needs to match in terms of power in to in order to avoid doing damage.

    Both are 12V output - but should other things like the mA, wattage etc match too…

    I’m probably better off just getting a replacement but also sure I’ll find the original the minute I do that!



Comments

  • Options
    #2
    victor8600
    Registered Users Posts: 1,642 ✭✭✭victor8600


    The power adapter needs to have the same polarity (+/-) as the original, and be able to supply at least as much current. Do you have pictures of the power input of your piano and of the power adapter?



  • Options
    #3
    flogen
    Moderators, Society & Culture Moderators Posts: 10,247 Mod ✭✭✭✭flogen


    IMG_1340.jpeg

    This is the what the internet tells me is the power block for it



  • Options
    #4
    Antenna
    Registered Users Posts: 2,315 ✭✭✭Antenna


    What is on the power supply plug your found?

    The 'plug' you found could well be 12V AC , which you cannot use, (if it was for 12V lights) or DC, so post what is on that also ...


    If polarity (+/-) is wrong way round it could cause damage,,,,



  • Options
    #5
    flogen
    Moderators, Society & Culture Moderators Posts: 10,247 Mod ✭✭✭✭flogen


    IMG_1337.jpeg

    This is one of the two I found (don’t have a picture of the other).

    If says 15.3V on the sticker but as you can see it says 12v at the bottom and has a label on the wire with 12v on it too… not sure why that’s the case!

    Or if it’s incompatible for other reasons…



  • Options
    #6
    MrMusician18
    Registered Users Posts: 7,414 ✭✭✭MrMusician18


    The Black and decker doesn't deliver enough current and is the wrong voltage.

    Don't use.



  • Advertisement
  • Options
    #7
    flogen
    Moderators, Society & Culture Moderators Posts: 10,247 Mod ✭✭✭✭flogen


    Cheers!

    I’ll try to find the other one and see if I’ve any better luck



  • Options
    #8
    flogen
    Moderators, Society & Culture Moderators Posts: 10,247 Mod ✭✭✭✭flogen


    IMG_1341.jpeg

    This is the other one that fits… if I’m reading it right I don’t think it’s a go-er either but good to know for sure



  • Options
    #9
    victor8600
    Registered Users Posts: 1,642 ✭✭✭victor8600


    https://www.boards.ie/discussion/comment/121247424#Comment_121247424

    This one should be ok. The polarity is fine, and it is 12V x 3A, which is more powerful than the original, so that's fine.



  • Options
    #10
    10-10-20
    Registered Users Posts: 7,159 ✭✭✭10-10-20


    https://www.boards.ie/discussion/comment/121247535#Comment_121247535

    Agreed, will be fine on the Yamaha piano. I've a p-115 here with the same power supply.



  • Options
    #11
    flogen
    Moderators, Society & Culture Moderators Posts: 10,247 Mod ✭✭✭✭flogen


    Ah great… it having more power doesn’t mean there’s a risk of it burning something out, does it?!



  • Advertisement
  • Options
    #12
    10-10-20
    Registered Users Posts: 7,159 ✭✭✭10-10-20


    https://www.boards.ie/discussion/comment/121247963#Comment_121247963

    No, not really, only of there is a fault in the product. Its not a concern as it should be fused internally and Yamaha are a reliable brand.



Advertisement