1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  

Mark bass 250 blackine head out of service - schematic needed !

Discussion in 'Amps and Cabs [BG]' started by Mister Cbass, Apr 23, 2018.

  1. Mister Cbass

    Mister Cbass Supporting Member

    Jun 30, 2011
    Hello from France,

    Sorry for my poor English, but I need your help.

    My MK head doesn't work anymore.

    I've read a lot of threads ( french forum) about issue related to this brand.

    I've send a very gentle e-mail to MK ( What can I do, is there an official and authorized reparator in my area, can I buy replacement pièces ?).... no answer ( I've sent my e-mail since 3 weeks,), other customers are in the same situation ( They tried to contact mk Customer services wihtout result) .

    Finaly, A friend've opened the head, the power supply still works but the head doesn't "works " ( blue led still off). The fuse was changed too.

    It's not easy, so he request me the schematics.
    Of course the head is out of warranty.

    Thanks' in adavance for your help and my apologises for my English.

    Kind Regards.

  2. JimmyM


    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    Good luck getting the schematic. Markbass is extremely guarded about stuff like that.
  3. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

    Mar 3, 2021

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.