Jump to content


Photo

Can Guitar Center Do Service Work In Jtv?

variax warranty repair repair guitar center service center

  • Please log in to reply
32 replies to this topic

#1 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 11 February 2014 - 01:59 PM

I'm having an issue with my JTV69 where the signal is clipping when I play it really hard.  It's most noticeable on the 3rd and 4th strings.  I noticed it when using the VDI cable and it seemed like using the 1/4" it wasn't happening.  But I noticed that when the alternate tuning knob is enabled it's happening regardless of how the guitar is connected.

 

I've tried it into multiple sources (HD500, regular amp, Guitar Rig), and I have a JTV59 that doesn't do this.  So I've isolated it to a problem with the JTV69.

 

 

 So I dropped it off at the Guitar Center where I bought it, it's about 4 months old so should still be under warranty.  I thought to check on Line 6's site today and noticed that Guitar Center isn't listed as a service center in my area.  Their tech hasn't looked at it yet so they haven't contacted me one way or the other yet. 

 

I just don't want it to sit there for a few weeks to be told that they don't even do service work for JTV's.  

 

Anyway, that's a very long way to ask a short question:  Does anyone know if Guitar Center can actually work on JTV's or should I have just contacted Line 6 directly?


  • 0

#2 phil_m

phil_m

    Uber Guru

  • Line 6 Expert
  • 5277 posts
  • LocationMinneapolis, MN

Posted 11 February 2014 - 02:08 PM

Well, if they aren't listed as a service center, than, no, they won't be able to do service work associated with a warranty repair. If there's not a service center near you, than contacting Line 6 directly is the way to go about it.


  • 0
Time is a train
Makes the future the past
Leaves you standing in the station
Your face pressed up against the glass

 


#3 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 11 February 2014 - 02:12 PM

Thanks for the heads up.  I'll head back over there and pick it up.  There's a service center in my area, but a friend of mine just got his JTV worked on there and it took over a month for them to look at it and determine the pick up selector needed some contact cleaner...

 

I may open a support ticket with Line 6 first and see what they say. 


  • 0

#4 cruisinon2

cruisinon2

    Gear Head

  • Members
  • PipPipPip
  • 511 posts

Posted 11 February 2014 - 02:29 PM

Thanks for the heads up.  I'll head back over there and pick it up.  There's a service center in my area, but a friend of mine just got his JTV worked on there and it took over a month for them to look at it and determine the pick up selector needed some contact cleaner...
 
I may open a support ticket with Line 6 first and see what they say.


J
Thats ridiculous...nothing should ever sit for a month waiting for service. And for a 0.73 second blast of contact cleaner?!?!?! Was that even the problem, I hope? I wonder how long it would have sat there if it needed something really challenging, like a new set of strings.
  • 0

#5 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 11 February 2014 - 02:32 PM

I agree!!  I have used this service center years ago when I had a problem with my Vetta floorboard.  From what I remember it took forever then too. 

 

Oh and on top of it taking forever for my friend to get his guitar back he said when he did it reeked of cigarette smoke.  I'm not excited about the prospect of them being my only option!


  • 0

#6 cruisinon2

cruisinon2

    Gear Head

  • Members
  • PipPipPip
  • 511 posts

Posted 11 February 2014 - 02:53 PM

I agree!!  I have used this service center years ago when I had a problem with my Vetta floorboard.  From what I remember it took forever then too. 
 
Oh and on top of it taking forever for my friend to get his guitar back he said when he did it reeked of cigarette smoke.  I'm not excited about the prospect of them being my only option!

I agree!!  I have used this service center years ago when I had a problem with my Vetta floorboard.  From what I remember it took forever then too. 
 
Oh and on top of it taking forever for my friend to get his guitar back he said when he did it reeked of cigarette smoke.  I'm not excited about the prospect of them being my only option!


About your problem...the fact that its happening only with alternate tunings sounds like a software issue, rather than hardware. I had a similar a problem with the acoustic models when using 1/2 step down tuning...open G string was out of control loud, but only in an altered tuning. Knocked level down in workbench, and all is good.

Also had issue with the acoutic model, position 3...if the tone knob was anywhere but on '10', I got a horrible distorted echo about 300ms after any note I played. Happened after I flashed 2.0 firmware the first time, but again only happened in alt. tuning. Reflashing firmware fixed it.

Only thing I can figure is that the alt tuning algorithms are doing a lot in a short amount of time...and sometimes it sh*ts the bed. Try reflashing the guitar and see what happens...might also want to lower the string volume, see if that helps.
  • 0

#7 silverhead

silverhead

    Uber Guru

  • Line 6 Expert
  • 11099 posts
  • LocationOttawa, Ontario, Canada

Posted 11 February 2014 - 02:56 PM

I think you should report that service Center to Line 6. Perhaps they will decertify it and find a replacement.
  • 0

Life is what happens to you while you're busy making other plans.
.... John Lennon

 

 


#8 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 11 February 2014 - 05:35 PM

About your problem...the fact that its happening only with alternate tunings sounds like a software issue, rather than hardware. I had a similar a problem with the acoustic models when using 1/2 step down tuning...open G string was out of control loud, but only in an altered tuning. Knocked level down in workbench, and all is good.

Also had issue with the acoutic model, position 3...if the tone knob was anywhere but on '10', I got a horrible distorted echo about 300ms after any note I played. Happened after I flashed 2.0 firmware the first time, but again only happened in alt. tuning. Reflashing firmware fixed it.

Only thing I can figure is that the alt tuning algorithms are doing a lot in a short amount of time...and sometimes it sh*ts the bed. Try reflashing the guitar and see what happens...might also want to lower the string volume, see if that helps.

Thanks for the advice.  

 

I've tried reflashing the firmware, as well as rolling back to version 1.9.  I still had the issue.  

 

When I connect via VDI I get the same issue in standard tuning.  When connected via 1/4" cable I don't get the issue in standard tuning.  I thought I was good to go but discovered last week that it happens in alt tuning mode even when connected via 1/4".  

 

My JTV59 doesn't do this.  I've really been enjoying playing this guitar so I'm bummed to be without it for a while :(


  • 0

#9 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 11 February 2014 - 05:37 PM

I think you should report that service Center to Line 6. Perhaps they will decertify it and find a replacement.

I'll open up a support ticket and see what Line 6 has to say.  I'm sure they wouldn't be happy knowing that this company is representing them.  When I had my Vetta floorboard worked on all those years ago, and when my friend took his JTV there, they didn't really seem to be very familiar with Line 6 products anyway.  Not sure how they became a certified service center.  


  • 0

#10 arislaf

arislaf

    Power User

  • Members
  • PipPipPipPip
  • 1035 posts
  • LocationGreece

Posted 12 February 2014 - 01:10 AM

I think you should report that service Center to Line 6. Perhaps they will decertify it and find a replacement.

Wow, how can we do that? Our service in Greece (Nakas ) is also no good at all.


  • 0

#11 silverhead

silverhead

    Uber Guru

  • Line 6 Expert
  • 11099 posts
  • LocationOttawa, Ontario, Canada

Posted 12 February 2014 - 03:42 AM

Use the Contact Us link at the foot of this page.
  • 0

Life is what happens to you while you're busy making other plans.
.... John Lennon

 

 


#12 ajktsb

ajktsb

    Just Startin'

  • Members
  • Pip
  • 19 posts

Posted 12 February 2014 - 09:45 AM

Even though you only hear it in the alt tuninjgs, I'll bet it is there in the original tuning as well. I recently spent A LOT of time tracing the distortion in my JTV69. traced it directly to the piezos in strings 3 and 4. I opened up Workbench HD and lowered the volume down several DB on the 3rd string and just a little bit less on the 4th. Problem went totally away and the guitar still sounds fine even with the lowered string volume. Try it!


  • 0

#13 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 12 February 2014 - 01:49 PM

Even though you only hear it in the alt tuninjgs, I'll bet it is there in the original tuning as well. I recently spent A LOT of time tracing the distortion in my JTV69. traced it directly to the piezos in strings 3 and 4. I opened up Workbench HD and lowered the volume down several DB on the 3rd string and just a little bit less on the 4th. Problem went totally away and the guitar still sounds fine even with the lowered string volume. Try it!

Thanks for the advice.  It's in the regular tuning when connected via VDI, but for some reason it's not prevalent when connected with 1/4".  

 

I had gone into Workbench and dropped the volume of the 3rd and 4th strings down to 20% to see if that would fix the problem but it was still there.  Just quieter.

 

I opened a support ticket with Line 6 yesterday and hope to hear something soon.  I opened up a support ticket a month ago about not being able to register this guitar to my account.  I never heard anything back.  I'm hoping they will respond to the ticket I opened yesterday.


  • 0

#14 ColonelForbin

ColonelForbin

    Iknowathingortwo

  • Members
  • PipPip
  • 329 posts
  • LocationChicago, Illinois

Posted 13 February 2014 - 09:28 AM

Ask the Guitar Center where you took the gear, if they have an onsite third party repair company. That may be the case, and that company may be an "authorized L6" repair facility.

 

For example, the Guitar Center near me (on Halsted near Wrightwood, in Chicago) has an in-store repair facility - but it's not staffed by Guitar Center, it's actually a 'satellite' branch of Third Coast Guitar Repair.


  • 0

"Searching for a distant star, Heading off to Iscandar

Leaving all we love behind, Who knows what dangers we'll find?"


#15 snhirsch

snhirsch

    Iknowathingortwo

  • Members
  • PipPip
  • 284 posts
  • LocationBurlington, VT USA

Posted 13 February 2014 - 06:39 PM

All the discussion I've read about the Workbench level settings suggests that the gain adjustment occurs between the piezo pickups and the AD converter.  While that certainly would be a logical place to put it, does anyone know for sure if that's actually the case?  I'd certainly hope so, but it would be nice to hear confirmation from the Line 6 technical folks.  Hard to believe this would be considered proprietary information.


  • 0

40 years of Rock-n-Roll and proud of it!

 

PRS Custom 24 (1990) w/ GK-3 Hex PU

James Tyler Variax JTV-69(k) w/ Strat Neck

Roland GR-55 Guitar Synth

QSC K10 FRFR

 


#16 stevekc

stevekc

    Iknowathingortwo

  • Members
  • PipPip
  • 240 posts

Posted 14 February 2014 - 09:04 AM

 

 

All the discussion I've read about the Workbench level settings suggests that the gain adjustment occurs between the piezo pickups and the AD converter.  While that certainly would be a logical place to put it, does anyone know for sure if that's actually the case?  I'd certainly hope so, but it would be nice to hear confirmation from the Line 6 technical folks.  Hard to believe this would be considered proprietary information.

 

1392396982_9222147_P1020031.JPG

Above is a JTV-69

Actually each Piezo saddle signal feeds a fixed gain op amp that feeds an AKM5386 Stereo A/D There are three U2,U3,U5 - to cover all 6 strings.

http://www.akm.com/a...et/AK5386VT.pdf

There is no "adjustable Gain" block in the AKM5386

 

The Variax String Gain is accomplished post A/D inside the Freescale DSPB56725F DSP

 

(trivia : The Mag PUs use a separate AK4556 Stereo CODEC (U6) - (for A/D for the VDI interface) and D/A for the 1/4" out  

http://www.akm.com/a...et/AK4556VT.pdf


  • 0

#17 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 14 February 2014 - 02:07 PM

I haven't been back to guitar center to pick up my guitar yet, but I went ahead and opened a ticket with Line 6 to get the communication started.  I sent them a sound clip and heard back from them today.

 

Basically that this is something they've heard before and is happening because I'm "playing too hard".  Even though my JTV59 doesn't do this.  Difference between a tremolo bridge and fixed bridge maybe?

 

They said I could send it in for diagnostics, but if they're just going to tell me nothing is wrong with it I'd rather skip the time without my guitar.   


  • 0

#18 snhirsch

snhirsch

    Iknowathingortwo

  • Members
  • PipPip
  • 284 posts
  • LocationBurlington, VT USA

Posted 16 February 2014 - 04:49 PM

Above is a JTV-69

Actually each Piezo saddle signal feeds a fixed gain op amp that feeds an AKM5386 Stereo A/D There are three U2,U3,U5 - to cover all 6 strings.

http://www.akm.com/a...et/AK5386VT.pdf

There is no "adjustable Gain" block in the AKM5386

 

The Variax String Gain is accomplished post A/D inside the Freescale DSPB56725F DSP

 

(trivia : The Mag PUs use a separate AK4556 Stereo CODEC (U6) - (for A/D for the VDI interface) and D/A for the 1/4" out  

http://www.akm.com/a...et/AK4556VT.pdf

 

Interesting.  Does it have enough S/N ratio to be massively conservative in gain matching - to the point where even the heaviest pickers cannot run out of headroom?  This is one of the issues that gives me pause when thinking about the GraphTech bridges.  I suppose one could get in there and twiddle the feeback around the input op-amps if required.


  • 0

40 years of Rock-n-Roll and proud of it!

 

PRS Custom 24 (1990) w/ GK-3 Hex PU

James Tyler Variax JTV-69(k) w/ Strat Neck

Roland GR-55 Guitar Synth

QSC K10 FRFR

 


#19 chuskey

chuskey

    Just Startin'

  • Members
  • Pip
  • 74 posts

Posted 18 February 2014 - 09:51 AM

Well I got my problem sorted out.  The fix was a bit of a duh moment, and I'm almost embarrassed that it took me as long as it did to figure out how to correct it.  

 

What I had to do is change the global string volume settings from the edit menu.  I searched the forums and heard people talking about how this acts as a type of pre gain.  Lowering it by 5-6db did the trick. 

 

I didn't even know that setting was there.  I don't use workbench all that much, probably because I can't connect through my HD500 and have get out a separate interface, and just never noticed that setting in the edit menu.  

 

I had been adjusting the the string volume on the patch, but that didn't do anything to help the problem.  

 

As to why the signal was so hot and clipping I couldn't say.  My JTV-59 never had that issue.

 

So all is well again thankfully!


  • 0

#20 cruisinon2

cruisinon2

    Gear Head

  • Members
  • PipPipPip
  • 511 posts

Posted 18 February 2014 - 10:02 AM

Well I got my problem sorted out.  The fix was a bit of a duh moment, and I'm almost embarrassed that it took me as long as it did to figure out how to correct it.  

 

What I had to do is change the global string volume settings from the edit menu.  I searched the forums and heard people talking about how this acts as a type of pre gain.  Lowering it by 5-6db did the trick. 

 

I didn't even know that setting was there.  I don't use workbench all that much, probably because I can't connect through my HD500 and have get out a separate interface, and just never noticed that setting in the edit menu.  

 

I had been adjusting the the string volume on the patch, but that didn't do anything to help the problem.  

 

As to why the signal was so hot and clipping I couldn't say.  My JTV-59 never had that issue.

 

So all is well again thankfully!

 

It seems that there is considerable variation with piezo output...it's also odd that along with the 2.0 update, the default global string volumes are not all at 0db. I toggled back and forth between 1.9 and 2.0 a few times, just testing things out...each time I reflashed 2.0, the volumes werwe set at  0db, -3.1db, 0db, -6.0db, 0db, -6.0 (low E to high E). I've got them all set at -6db now, plus some individually tweaked models.


  • 0





Also tagged with one or more of these keywords: variax, warranty repair, repair, guitar center, service center

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users