I Changed The Batteries In My Axe Fx Ultra While It Was On.....and Lived!

Discussion in 'Digital & Modeling Gear' started by bobmeredith, Sep 16, 2019.

  1. bobmeredith

    bobmeredith Member

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    I have 2 Ultras, bought them 2nd hand years ago, so I decided to change the batteries.

    To avoid having to restore all my presets etc I did it while they were on.

    Piece of cake.

    Just dont wear nylon sox or clothes, touch the chassis, and don't stick your fingers in the power supply, or touch any of the components with your fingers.

    The hardest part is getting the top off the unit....some of those screws are really tight....stripped one and had to drill it out.
     
  2. Cactusprick

    Cactusprick Member

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    Hmm not sure if this was a good idea but.
    I would prefer the full back up and turn off the unit before changing the batteries.
    Isn't the fan attached on the cover as well?
    Why risk it all when you can simply turn it off...
     
  3. eclecto-acoustic

    eclecto-acoustic Supporting Member

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    I'm impressed that you went to such lengths, and moreso that you did it successfully.

    However.

    They make warning labels for people like you :D:eek:
     
  4. MojoRisin

    MojoRisin Member

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    Congratulations for avoiding a Darwin Award another year. :banana
     
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  5. eriwebnerr

    eriwebnerr Member

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    I have bad news - you did not live. You are posting in forum hell :Devil
     
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  6. bobmeredith

    bobmeredith Member

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    Firstly....all of the chips and solid state components of any modern unit don't run on mains power. Power supplies step down the voltage to a level (3-12v) that can be used by SS components; so there's no danger if you touched one of these....but you could damage them by touching them due to static. SOLUTION......DON'T TOUCH THEM

    It's a 3v battery.

    Secondly.... I would have had to have poked a metal rod INTO the actual power supply section to get zapped....there are no live wires trashing around like Cthulhu to suddenly rise up and grab you.

    I covered the power supply section with a light rubber sheet just to make sure that my inherent clumsiness didn't present a danger.

    My first job (16-20) was in electronic repair.

    No manufacturer is going to risk telling people that it's ok to open the case while a unit is powered on for legal reasons.....but that doesn't mean that it can't be done safely and successfully if you are careful.

    Hence my post. If this frightens you.....don't do it. Simple as that. I'm not telling any of you to do it.

    The backup and restore from the Ultras midi connection is not always reliable and results in checksum errors from time to time. Several tries are sometimes needed.....I just wanted to save myself that minor hassle.
     
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  7. bobmeredith

    bobmeredith Member

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    You are correct about the fan...it's attached to the upper case top.

    You have to lay things out properly on a bench if you want to avoid detaching/straining any wires etc. Easy do do if you prep properly.

    Not sure if I'm risking all....but I'm not advising people to do this if it worries them. Just saying it's possible with care.
     
    Cactusprick likes this.
  8. Emigre

    Emigre Member

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    Quite the justification ;)
     
  9. Alex Kenivel

    Alex Kenivel Member

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    No nylon socks, check.
    No clothes, check.
    Dedication, check.
     
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  10. bobmeredith

    bobmeredith Member

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    :rotflmao
     
  11. MojoRisin

    MojoRisin Member

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    My post was just joking around. I'm like you and wouldn't think twice about doing something like this. I agree it's fairly low risk if you take some basic precautions. Electronics were made to do our bidding not the other way around. :cool:
     

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