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JTV69 alternate tuning problem
by geriatric on 2012-03-05 03:32:09

Guys (and Line 6 techs),

I seem to be having the same sort of alternate tuning problem that others have experienced. It is most apparent on the high E and B strings (and sometimes others) whilst in alt tunings and only occasionally slightly discernible in standard tuning.  It seems to be a similar complaint to this thread http://line6.com/support/thread/78699. There's a dissonant two note or off harmonic sound.  This totally ruins one of the reasons for my buying this guitar. Plain fact ... this is defective and unacceptable.  I waited 6 months after ordering the guitar in Australia and now this! Are there any solutions to this issue? Tearing my hair out here.  Line 6 are there solutions to this issue?  Is this software or hardware (piezo?) problem?

I have reflashed the guitar.  I also dampened the trem springs to see if that was producing the problem.  Still no joy.  Tried it with headphones to ensure I wasn't hearing the standard tuning along with the alt tuning.  So I'm out of options at the moment.

  Having reached over my 62nd year, I want this problem sorted before I depart this world.

Peter



Re: JTV69 alternate tuning problem
by Line6david on 2012-03-05 11:20:39

Hi,

Sometimes, bad intonation can cause things like this to happen. Have you switched the strings for a lighter/heavier gauge? Check the intonnation on the instrument. With an accurate chromatic tuner, hit an open string then hold down the same note on the 12th fret. Is there a difference?

Thanks,

David

Line 6 Customer Support



Re: JTV69 alternate tuning problem
by geriatric on 2012-03-05 14:00:15

Thanks for replying David.  I'll check that out.  I'm away on a business trip at the moment but will get onto it when I return home.  Apart from this problem the guitar is fantastic. Having previously had the Var600 the JTV was a must buy.

Peter



Re: JTV69 alternate tuning problem
by geriatric on 2012-03-05 18:09:28

Hi David

I checked the intonation and it's fine.  I ran another test by muting all adjacent strings to the one being played and the problem disappeared substantially.  Is it possible that there is some sort of "leakage" into other the piezo contacts or "oversensitive" piezos involved?

To make sure I wasn't wrong in hearing the anomalies and overtones, I took the JTV into the retailer (Allens Muic+Billy Hydes) for the guys to check all this out.  They've definitely confirmed the problem in my JTV69. They were able to do a comparison with another JTV69 that had arrived for another customer and that one was perfect and did not exhibit the same problem as mine.  So they've ordered replacement for me.

I've also noticed that the the trem still had the infamous incorrect internal piezo cable tie method. Does that create issues for the piezos? Could you please comment on that because I don't want to have to continue returning what are possibly good guitars apart from having to resite that cable and clamp it elsewhere.  It's was hard enough getting the guitar in the first place here in Australia let alone trying to get replacements.

Thanks

Peter



Re: JTV69 alternate tuning problem
by bcoellier on 2012-03-07 12:47:32

Hi Peter,

Thanks of your answer on the other thread.

After some software actions: back in V1.70 again in 1.71 and try in analog output (use normally VDI PODX3 channel1)

Problem stiil here...

So I think like you say, problem is hardware or bad wiring.

I am going to contact my vendor to know what to do for warrenty

Bertrand.



Re: JTV69 alternate tuning problem
by geriatric on 2012-03-08 21:36:13

Gidday David

Do you have anything to add after having seen my last post. Although I'm being sent another JTV69 it seems as if others are having similar anomalies and it would be good to find the source of the problem not only for the guys who have the issue but also for the reputation of Line 6. Being the owner of quite a  number of your products, XT Live (sold), variax 600 (sold), Pocket Pod, X3 LIve, M13, J4 Looper, Backtracker, Pod HD 500, DT50, and JTV69, it would be nice if you could comment.

Peter



Re: JTV69 alternate tuning problem
by Line6Hugo on 2012-03-28 11:40:58

Can you please provide us with an audio recording of the problem and telling us exactly what tuning/settings you are using and what you are fretting in the audio?

This will help us understand the scope of the problem and if it can be reproduced.

Regards,

Line6Hugo



Re: JTV69 alternate tuning problem
by geriatric on 2012-03-29 01:03:02

Thanks for getting back to me Hugo.

I've tried attaching an mp3 but the editor keeps refusing indicating "the content of this attachmjent is not allowed".  Do I need to label it with a different file extension?   How do I successfully attach it?  The tuning used was dadgad but I can't remember where I fretted the guitar since I recorded it a couple of weeks ago.  It was certainly on the 1st string.  The audio file firstly records standard tuning and then the same fretting in dadgad. I don't believe it sounds like the mags interfering but some sort of crosstalk from other piezos?

However, I no longer have the guitar but returned it for a JTV59 and that seems to be OK so far.  I'd still like to know what the previous issue was in case it raises it's head with the 59.  This is the first real issue I've had withy any of my L6 gear.  Having been an acoustic player all my life I came to the L6 electric world only in the last few years and really love it.

Thanks

Peter



Re: JTV69 alternate tuning problem
by Line6Hugo on 2012-04-02 09:28:51

Without having the guitar test here and go over with a repair tech, I cannot speculate what might have been wrong.  Perhaps there was a bad piezo on the guitar.

However, I am glad that the repalcement guitar you received is working.

Regards,

Line6Hugo




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