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153 Views 1 Reply Latest reply: Jul 25, 2012 5:06 AM by Crusty_Old_Rocker RSS
knife Just Startin'
knife
18 posts since
Aug 26, 2008
Currently Being Moderated

Jul 24, 2012 9:56 AM

Variax 700 Model Select Knob requires frequent re-calibration

My mode select knob on my Variax 700 recently got out of calibration. It got off by one position and I couldn't get down all the way to CUSTOM 1. So I learned how to calibrate it here:

 

http://line6.com/support/docs/DOC-3857

 

and that fixed it, and all was fine for a couple of weeks. Then before a gig, I did my usual routine of swapping out the batteries, went to play and found the encoder was again out of whack.

 

So is there something else I can look at, or is it time to send this in for service? I know I don't want to have to calibrate the encoder once a week.

 

Thanks for any advice or hints.

  • Crusty_Old_Rocker Expert Line 6 User
    Crusty_Old_Rocker
    3,096 posts since
    Jan 24, 2007
    Currently Being Moderated
    Jul 25, 2012 5:06 AM (in response to knife)
    Re: Variax 700 Model Select Knob requires frequent re-calibration

    The switch is a potentiometer.  It's stepped to deliver different resistance values for each position on the selector. If the pot is dirty or worn, it will give a wrong resistance value and the guitar model selected will be "out".

     

    Try this. Work the selector through its full range a dozen or so times. This might get rid of any dirt or corrosion in the pot. After doing that, recalibrate the selector.

     

    If that doesn't work the selector pot may need to be replaced. Give it a go, good luck & let us know how it goes.

     

    Cheers,

     

    Crusty

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