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psarkissian

Service Engineer Moderator
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Posts posted by psarkissian

  1. "I don't buy that a Variax is so special that you have to send it to Line6 for a setup"---

    No, you don't need to send it to Line 6 for a set-up. But an authorized tech who can check

    and spec it out, and dial it in.

     

    Local climate will affect things like neck relief and such. I get musicians who travel, I set it up

    for the "general" climate of their location.

     

    "... the dreaded "set-up" is not nearly as supernatural as many seem to think"--- correct, 

    though it's not magic, it has to be done correctly by someone with experience. I get too many

    back for a host of reasons, when all it really needed was to have the set-up dialed in a little tighter.

     

    Also, changing string gauges changes the the tension, which in turn changes the set-up, which

    then requires the set-up be re-adjusted for the different string gauge.

     

    It's not magic, it's a balancing act of balancing tensions and adjustments, and dialing it all in.

  2. The guy at Line 6 replying to you is consulting me,... we work in the same building.

    I heard the audio file, there's a very slight warble. Usually that's a result of the pick-up's

    magnetic field being too close and pulling on the string while in Model mode, and the

    piezos brings in that entire result to the processor.

     

    The pick-up height adjustment is a starting point.

    Very slight adjust,... by a guitar tech.

  3. One thing that is considered in a set-up is the climate of the geographical location

    of the end destination. Climate will have an affect on neck relief.

     

    When a JTV is serviced at Line 6, the climate end destination is considered. The set-up

    is done to specs, then adjusted for the end destination climate.

     

    Sometimes the climate changes during shipping can have an affect. Wait 2-4 days for

    it to settle-in after arrival. If it's a little out of adjustment, take it to your local Line 6

    service center and have it dialed in for the last fine adjustment, that last fine tweak.

     

    Also, remember that if you change the string gauges, that will change the tension and

    that would require and adjustment in the set-up. It's like that with most guitars, not just

    Line 6 guitars.

     

    And with acoustic instruments (guitars, violins and such), climate change is even

    more critical, and has more affect on the instrument.

  4. Since it can affect function,... best bet is to take it to an authorized Line 6 service center in

    your area and have them do it, that knows the specs and has access to the service info.

    That way there won't be any questions about warranty.

     

    I see too many of these come across my bench because someone went to an outside tech,

    who set it up to Fender specs (on the 69) or Gibson specs (on the 59), it didn't work, then the

    tech got in over head,.... then it ends up on my bench.

     

    Save yourself time and trouble, use the Line 6 authorized service center that knows JTV's.

    They can point you to one on the Customer Support line or the Customer Support ticketing

    system, through your account page.

    • Upvote 1
  5. String action overall is adjusted at the bridge post, the piezo saddle allows for dialing-in

    an individual string.

     

    Altitude can have a little affect, but it has to do with the climate in your area, mostly the

    long term temperature and humidity. Amount of Neck Relief in a set-up is set different for

    a guitar in a temperate zone than for a guitar in say, the Great Lakes region.

     

    Neck relief and action sets the string level and done right will prevent fret-to-string buzz.

     

    Changing string gauges requires adjustments in the set-up, because changing gauges

    changes the string tension, so a whole new set-up is required to adjust for that.

     

    And what ever you do, take it to a guitar tech who knows how to do this correctly and knows

    the specs and range of specs.

     

  6. On a 69, you should only need to adjust the individual piezo.

    Adjusting the bridge posts needlessly changes the overall action on all the strings,

    when you need to do only one.

     

    Make sure of the relief and at what fret the fall-away or leveling out occurs.

    Check the intonation with a precision strobe tune (not one of those $30 ones from the corner

    music store), or have a local guitar tech do intonation on it.

    • Upvote 2
  7. There's two really good techs at our Rugby location. I'm in touch with them constantly

    about guitars. They're pretty good. Among the few people I would trust (besides myself)

    to work on my three JTV's,... if only I lived in the UK, that "green and pleasant land".

     

    Be careful if you decide to go into it yourself. It's not our gaffa's Gibson archtop or vintage

    '59 Strat. It's a different kind of cat, need to cuddle it under the chin differently, or it'll bite.

     

    Luck,...

    • Upvote 1
  8. Take it to an authorized service center. This is not some old electric guitar with passive electronics.

    One wrong move and it will be bad, then it ends up on my bench. If you don't already know your way around the insides of this,

    then it should be left to someone who has experience with this guitar. There are static sensitive components in there.

    Pulling the pick-guard assembly on a 69-type guitar is not to be taken lightly.

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