Fed my AA12 18V...

Discussion in 'Support & Bug Reporting' started by Joakim Westin, Aug 22, 2019.

  1. Joakim Westin

    Joakim Westin New Member

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    So I accidentally connected my 18V (pedal power adapter) to my Amplifire 12. Screen blinked then went black for about 3 seconds before I recognised my mistake and pulled out the adapter. Afterwards the unit had a slight "burnt electronics" smell and won't start.

    So I opened the unit, hoping to see a fuse behind the input jack, and think I see one. So I was hoping you could help me identify some components, so I could try switching them out.

    I've contacted support, but I live in Sweden and shipping the unit back and forth for repair won't be worth it. I've also asked AA for help with identifying the components, but haven't got an answer (yet).

    Does anyone recognize the components in the picture?

    I recon I see:
    FB1: Ferrite Bead (some kind of noise cancelling funktion) - But I can't find any specs on it.
    BR1: A bridge transistor. I can't find an identical one though.
    L1: An inductor. Can't find any specs.
     
    Last edited: Aug 22, 2019
  2. Joakim Westin

    Joakim Westin New Member

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  3. Carl3o3

    Carl3o3 Member

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    Hi Joakim,

    The bridge rectifier can handle much more than 18V so that will not be the problem. I would look for a voltage regulator and connect at it's output the voltage that the regulator would deliver. If the device is not booting then you need to sell it as defect on Ebay :-(
     
  4. NelsonP

    NelsonP Senior Member

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    Shipping it back to atomic need not cost that much. Maybe €60-80 or so...
     

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