problem with SOLO function on Mesa RectoVerb

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by ggarriso, Apr 10, 2004.

  1. ggarriso

    ggarriso Guest

    Hey guys, Ive been having trouble with the solo function on my mesa rectoverb, it usually doesnt work.. OCCASIONALLY itll just start to work . its weird.. any clues?
  2. John Phillips

    John Phillips Member

    Mar 17, 2002
    Sounds like a switching problem - possibly a sticking relay - or some other intermittent connection, like a bad solder joint.

    At least if it generally doesn't work it should be relatively easy to trace - the worst kinds of faults are those which only occur rarely - ie not when it's in bits on the bench :rolleyes:.
  3. ggarriso

    ggarriso Guest

    Is there a procedure to debug this that I can do from hoem?
  4. PaulC

    PaulC Member

    Jan 11, 2002
    My Schematics for those are at work, so I can't point you to which one, but I'd look at the LDR switches in the unit. There are a ton of those in there that deal with the switching functions of the amp. I'd just go ahead and hit all the solder conections for those first. If I had the schematic in front of me I could tell you which ones are in the solo function... I'll try to remember to look today, but my memory bites... PaulC
  5. ggarriso

    ggarriso Guest

    Thanks very much Paul,

    Is there any possibility this could be the tubes in any way shape or form? The solo button is basically just a power boost I think and a reeq?

    Well here is what makes me ask this question.. I got the amp and the button worked fine.. I only had the amp for a few days before I retubed the preamp tubes(The reverb I am not so sure about :) ).. I decided to throw in a new set of preamp tubes..

    Fired it up and it sounded great .. but the button stopped working.. Swapped all the old preamp tubes back in, button still didnt work.. I wonder if a bad preamp tube may have somehow messed up the power amp tubes?? I notice one of them glows a little blue.. I guess thats ok though.. I dont want to drop 50 more dollars on some new power amp tubes only to find out this is all completely unrelated.. booo!
  6. Peter C

    Peter C Member

    Nov 4, 2003
    Carlsbad, CA
    This may be a stupid question, but have you made sure the solo level is above your master volume level when switching?

  7. ggarriso

    ggarriso Guest

    Thanks guys, yep I defenatily checked that out. turned the solo all the way up only to see it make no difference.. is this ver hard to repair?

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