Home › Forums › Help/Technical Questions › Holy Grail works intermittently

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  • July 20, 2011 at 5:39 am #79654
    antiuser
    Participant

    I just bought a Holy Grail Reverb yesterday and while I absolutely love how it sounds, it’s got a pretty big problem: I never know what’s going to happen when I stomp on it. Sometimes it works, sometimes it doesn’t – and this goes for both the wet and dry sounds (bypassed and not). I posted a video on YouTube to better illustrate the problem: http://www.youtube.com/watch?v=BYaBAwyNGT0

    I’m using the appropriate EHX power supply and there were no other pedals in my signal chain when I tested. Cables are fine, guitar jack is fine. I’m guessing it could be a busted switch but figured I’d ask here to see if anyone has any tips.

    July 22, 2011 at 7:03 pm #106017
    antiuser
    Participant

    Wow, nobody?

    July 22, 2011 at 11:17 pm #105902
    Cryabetes
    Participant

    hey
    checked out your video .
    This is my take/two cents on it.
    1- Where did you buy it from? This is more for my own curiousity because that’s the older model, and if it was a consignment or bought used, the seller probably knew about the behaviour
    2- The meat and potatoes of your problem: sounds like the bypass switch. Basically, the bypass switch connects a wire to one of two contacts. Guitar pedals typically have two [DPDT] or three [3PDT] of these happening at the same time. Occasionally the switch will fail in a manner where one of the ‘subswitches’ within a stomp switch will either reverse or fail to connect.

    That’s what seems to be happening in my observations, anyhow. Something to test, to see if it is indeed that, would be, while the pedal is on and ‘working’, disconnect the power. if, by turning it on and off [by inserting/removing power], it would do the ‘halfassed’ mode, it’s not the switch and is something internal in the pedal.

    Best,
    Sam

    July 22, 2011 at 11:23 pm #105893
    antiuser
    Participant

    I bought it from the Trading Musician, which is a pretty reputable local shop. I tested the switch with a continuity tester and did not see any faults with any of the terminals, or “subswitches” as you call them. I’ll try your power disconnecting method, although I don’t think that’ll work since this pedal uses a 3PDT switch so I’m guessing all the switching/bypassing is mechanical?

    I guess, since there’s no warranty and the shop probably won’t let me return it since I was stupid enough to velcro it to my board before giving it a thorough test, I’ll try replacing the switch. Otherwise, I guess that’s a $100 lesson.

    July 23, 2011 at 6:14 pm #107584
    antiuser
    Participant

    As it turns out, it was indeed a faulty 3PDT switch. Replaced it and it’s all good now!

    July 23, 2011 at 8:11 pm #107585
    Cryabetes
    Participant

    cheers.

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