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Tech 21 VT Bass Deluxe Switch Problem

Discussion in 'Effects [BG]' started by eight0eight, Feb 16, 2014.

  1. eight0eight


    May 31, 2009
    Boston MA
    So I've been having intermittent switching issues with my bass deluxe for a few months. I've been ignoring it as I'm not gigging and it's mostly just gets used for practice. Unfortunately it keeps getting worse and at this point the switch for preset 1 works only a small fraction of the times it's pushed. I hear the audible click of the switch physically engaging but no change to the unit settings. This happens occasionally on the other switches but pretty rarely. The unit has not been abused and has no corrosion that I can see. I've opened the unit to look for problems but all the solder joints look good and the throw of the switch looks fine.

    Anyone else having issues?

  2. eight0eight


    May 31, 2009
    Boston MA
    Awesome, some electronic cleaner applied to the switches inside seems to have fixed the issue! Odd considering the age of the device and the lack of any dust or corrosion inside. Still nice to have it fixed.
    Also, in case you wondered this unit does make a decent DI for an acoustic electric guitar in a pinch. I just kept it in bypass mode and set one of the presets to zero volume so she could use it as a tuning mute as well. I've found so many uses for this unit!
  3. alec


    Feb 13, 2000
    Perth, Australia
    Mine had the same problem and spraying some deoxit in there worked eventually.
  4. keatz


    Jan 19, 2011
    i justcame across the same problem with switch 1 on my vt bass deluxe. Do i need to open her up or just spray on the switch externally? dont want to do damage inside thats all. Thanks.
  5. JimmyM


    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    Internally. It's not all that hard to take the bottom off it. You shouldn't need to take the PCB out, I don't think. Just use the straw to get in there.
    keatz likes this.
  6. tech21nyc

    tech21nyc Commercial User

    Aug 17, 2010
    Manufacturer: Tech 21
    Normally the problem is not the switch which is really an actuator. The actuators on the unit trigger TACT switches on the circuit board which rarely go bad. What happens is that the spring on the actuator can become misaligned. It's best to contact our support staff and they can tell you how to remedy the problem.

    Tech 21 USA, Inc.
    Tel: 973-777-6996
    Fax: 973-777-9899
    email: info@tech21nyc.com