Please ensure Javascript is enabled for purposes of website accessibility Jump to content

psarkissian

Service Engineer Moderator
  • Posts

    4,701
  • Joined

  • Last visited

  • Days Won

    24

Posts posted by psarkissian

  1. A reminder about 1/4" guitar cables when running from batteries (or XPS power

    supply),... use a TRS (Tip/Ring/Sleeve) guitar cable [page-5, JTV Pilot's Guide,

    under 8- Battery Compartment]. It works better that a TS (Tip/Sleeve) cable.

     

    TRS uses the battery, signal and return lines.

  2. Line-6-user,... the longer cable is a 25ft VDI, has the XLR like casing on both ends of the cable,

    and as far as I know come separately as an accessory. This is the cable used for playing through

    when using the floor effects (XT, X3 and HD series). 

     

    "... the HD500 as an interface for JTV updates, use the JTV Interface widget. ..." A simple WARNING

    message during the updates would safeguard this"----  

    When updating, there is usually a message that comes up to unplug other USB devices. That way,

    the device being updated can be isolated for update without data crosstalk from other devices.

     

     

    Recap--- Update the JTV separately using the USB interface widget that came with the JTV. Use the

    25ft VDI cable (with the XLR shroud casings on both ends) for playing the instrument through the HD500.

    Do not use the shorter cable, it's for using with the USB interface for updating the JTV.

     

    Also, check the Knowledge Base section, looks like some good tutorials in there on HD500's.

  3. There is a short VDI for doing updates only with the Interface widget

    that comes with the JTV, (one side with shroud casing, the other not).

    It's not for using as a VDI for the HD500 for playing thru.

     

    The longer VDI cable is for playing thru (shroud casing on both ends). .

     

    Updating the HD500 with the JTV plugged in may not being a good idea,

    update the HD500 and JTV separately.

     

    If you are trying to update the JTV to Flash v2.00 or higher, do not use

    the HD500 as an interface for JTV updates, use the JTV Interface widget.

  4.  
    Right,... no voodoo involved in set-ups.
    Just have to do it right and be aware a few things.

    The specs for one,... the authorized service centers will have access to service info,
    and the set-up specs and procedures.

    For another,... the distance between the pick-ups and the strings. When the Models
    are engaged, if the distance between the pick-ups and strings aren't correct, the
    magnetic pull from the pick-ups can cause a warbling effect which gets picked up
    by the piezos. And it's an awful sound. Something you don't deal with when it comes
    guitars with passive electronics.

    And things like that. So it's good to take it to an authorized service person who has
    done a few JTV's. And yes, I have done a few JTV's.


    This isn't our grandfather's GIbson archtop with passive electronics anymore,...
    it's a different kind of cat,... so you have to cuddle this cat under the chin just a
    little differently. There are the usual things to be aware of with guitar set-up,...
    and some of the not so usual stuff as well.

     
  5. The thing with fret buzz is that it can occur in different places on the neck, 

    depending on how the neck relief is set. Eliminating fret buzz is a balance

    between neck relief and string action height.

     

    Pick-up to string distance can also play a role when the Models are engaged,

    though that doesn't seem to be the case here.

     

    More than likely in your case, it is burrs in the nut slots. If de-burring the nut

    slots doesn't help, then maybe it may need a new nut. A Line 6 authorized

    service center would be able to get one, or online through Full Compass

    (search: jtv-69 nut) on their website.

  6. vpera,

     

    Sounds like a combination of a slight fret buzz and looks like a few burrs

    in the nut slots. Recommend getting the nut slots de-burred and the set-up

    checked and dialed-in just a little.

     

    Also recommend a Line 6 authorized person in your area with JTV experience.

    Yes, logging a ticket would be good.

     

    Reminders- register the product, log a ticket, use a Line 6 authorized service center.

    Things go so much more smoothly and efficient that way for you.

  7. Have your local Line 6 authorized service center that does guitars have a look at it,

    it may just be a set-up or alignment issue.

     

    Set-ups are checked at the main distribution point. However climate at a given location

    can have an effect on the set-up. Since they don't know where a guitar is going to at that

    point, the set-up would be done to the specifications and not the location of the end destination.

     

    However, when I do repair or service a guitar, I adjust the set-ups for the end destinations.

    Sometimes it's needed that the local tech may need to dial it in that last smidgeon.

     

    When a guitar arrives, it's good to play it and give the set-up 2-4 days to acclimate to the

    end destination where you're at. Then, if needed, go to a local guitar tech for that last final

    smidgeon of adjustment.

     

    2013 necks have the most recent current neck specs.

  8. Listening to the audio clip, sounds like either the processor

    clock is failing or an input amp is failing on the UX2.

     

    Very slim chance,.... your computer is 64-bit, the UX2 is 24-bit,...

    I take it your sound-card is doing internal conversions.

     

    I asked about the mic earlier, because too many people use

    dynamic mics on these, and so they blow the phantom power

    line as a result. At least you know to use a condenser mic,... very good.

  9. Use the recommended cable and cable length.

    Line 6 link cable and mic cable are not the same.

    Impedance are different and the uses are different.

     

    AES/EBU,... it's the standard issue for this sort of application.

    For the uninitiated,... AES being the Audio Engineering Society,

    and EBU as in the European Broadcast Union.

    • Upvote 1
  10. The Sovtek 5881WXT is what Rheinhold Bogner spec'd for this one (Spider Valve series).

    The Sovtek 5881/6L6 WGC doesn't have the cup at the bottom which created problems with tube retainers

    so we don't use those anymore.

     

    People want the crunch of a Mesa tube, unfortunately too many with Mesa tubes come back with problems.

    JJ's and GT's also come back to us with problems, and things like the bias being way off-spec.

     

    The Sovtek 5881WXT is what Rheinhold Bogner spec'd for this one (Spider Valve series). There are interactions

    between the digital portion and the tube portion, such that, it is not as forgiving as old 60's as 70's tube amps.

    You can't get away with the same deviations with these as we used to with older tube amps.

     

     

    We have our tubes go through some extra scrutiny.

    Best to stick with the specified tubes,... less problems that way.

  11. No, I'm not new,... the thread is out-of-date. I'll let Dave know, thanks.

    I've been dealing with Spider Valve since the beginning, been dealing

    with tubes and tube amps for more than four decades.

     

    The characteristics curves of the JJ's, Mesa's and Groove Tubes

    are not close enough. If those are biased the same to the

    bias settings for the 5881WXT's,... then the amp ends up on

    my bench with problems. Can't use the same bias settings on these

    other tubes as with the 5881WXT.

     

    I see too many come back because of the wrong tube and/or bias settings.

    This is a mixed technology amp. You can't get away with the same

    sort of things we used to get away with for Marshall amps with 6550's

    in them.

     

    These amps are not as forgiving as the tube amps of yesterday-years.

    It's a Bogner hot-rod.

  12. Be sure to use the correct impedance output for the cabinet that you are using.

    They have to be matched or the tubes and circuitry will get stressed,... and then

    it will end up on a technician's bench. And that's no fun.

     

    Keep your fingers out of the inside of the amp,... even with the power off, a capacitor

    can discharge into your hand, and that hurts like hell.

  13. "I was just wondering if the "two tubes out" solution would work as a temporary

    solution in case I could not get it done before the upcoming gig." ----

     

    No!

    Don't do that.

     

    These aren't our grandfather's tube amps, these are mixed technology amps,

    you can't get away with this sort of thing like we used to in the old days. They

    are not designed to do that.

×
×
  • Create New...