psarkissian

And there are 3-switch configurations for the different JTV configurations. And so they have to be programmed as such. The guy from last week, took his guts and put it into a non-JTV body, so now his guitar body won't fit the tone colour of any of the 3-switch configurations programmed into it. I guy I know put his guts into a Flying-V,... it sounds different. But he knew that from the start because I went over all of this with him. He knows our product, because he used to work for one of our service partners. He is one of those five people in the Americas I trust to do a mod or transplant without messing up. It's not as simple as dropping in the guts into another body, then plug-and-play. Been involved with guitar synth stuff since 1978, and known about modeling since 1976 (back when it was called numerical modeling, and CPU's ran 8-bits). I've been doing this a while.

Hardware issue, needs to be troubleshooted at a Line 6 authorized service center.

New meaning to the term "screech".

And you're bumping your elbow into the controls, because they're on the other side now. And transplants have their own pitfalls. Last week, someone had one and the Models sounded different, being in a different body and all. He wanted me to adjust it and tweak it. Had to turn it down, it's some other company's product. And adjusting the Models to fit the tone of the body,... well, there simply isn't an adjustment for that. I warn people about this all the time. I've been getting paid to do tech stuff for the last 40-years (as of last month). I hear from those who didn't heed my warnings. And they not the four or five people in the Americas I trust to do mods (or transplants) without messing up. So be careful when doing this sort of mods or transplants (rather not see any), ... it's a pricey thing to mess up.

I would want a closer look at one of those,... the only concern from my POV would be whether those would scratch the fret-board or wear on the strings over time. Like having a capo for individual strings,... interesting.

DO NOT plug an amp's 8-Ohm output into a 4-Ohm input of a speaker cabinet. That is bad! Don't do that. http://line6.com/support/page/kb/_/general-faq/cabinet-connection-and-ohm-faq-r436

What are the symptoms? What is doing (or not doing)?

G.A. Yupangco & Co. 339 Gil Puyat Avenue Makati City, 1200 Phone: 00632 899 9595 Email: info@yupangco.com .... is the closest one I can find. The failure you're having is not something you'll be able to repair yourself. It will need a servicing by someone who knows the insides of our product and has access to the service information. Wish there was something closer to you.

Yes,... most definitely needs servicing. It's not the power supply.

When it gets like that, with the blank LCD like that,... it needs to be taken in for servicing by a Line 6 authorized technician who knows the product. Log a ticket into your account so a Customer Support person can take of it. It's not something you can fix yourself.

Mattherb, Register your product, and then log a ticket in you Line 6 account so that someone from Custom Support will be info and knows to respond. Unless you register the product and log a ticket, they won't know that you have a problem, until you let them know. And someone at Guitar Center will have paperwork somewhere.

Yes,... the cable is a TRS, not TS. There should be something about this in the manual and the Line 6 Knowledge Base. TRS = Tip/Ring/Sleeve, where one is for the signal, the other is for the DC supply and the sleeve is the common. There should be directions with it on how to connect it.

Both. Certain circuits don't do well with rechargeables. I've seen (not so much with G30/50/90) devices that fail with rechargeables in them that were so low, they were trying to run the circuit, to where I was seeing minus voltages on the plus volt line. The memory in those devices were blanked. Most memory IC chips, that's not a concern, newer versions aren't a problem that way. But just the same, I won't risk it. If the manual says to use Alkalines, then I use Alkalines. Why risk it.

Might function for a while, but it will stress the regulating circuitry and will eventually fail. The reason for alkaline batteries "may" have to do with the kind of memory chip used. Certain chips don't react well to rechargeable type of batteries and can blank the memory. I don't recall if that's the case with these, but I wouldn't risk it.

Both. It requires questions and answers and so on, until the solution is found. Knowledge abhors a vacuum, and the first step to knowledge is a question.

Yes. And there are a number of reasons for that to occur.

No, not getting screwed buying online, but it does add a certain randomness. There are those who buy online and have never had a problem. And I know that places like Sweetwater do further checks on these before they let them loose to the public. Just making sure people are aware. You sound like you're more aware than most. :) Glad that you got one that suite you. Don't need the name or number of the shop. Any shop or dealer return in the Americas will eventually come across my bench.

Every guitar I've ever owned (including my four JTV's) I spent time playing it, getting to know it, then I buy the one that's in my hand. Not the new one out of the box from the back store room. And I've never had a problem with any of them beyond the usual maintenance and up-keep. Some I've had for 40-50 years and they still play great. Lemon has little to do with it. A black box thru mail or online is one thing, getting a well kept Stradivarius thru mail or online is a coin toss. JTV's go through a final set-up at the main distribution point before they go to the retailer. And the retailers are all over the country. And the country has different climates in different places. And climate will eventually have some affect on the set-up. Every guitar that comes across my bench, gets a spec set-up, then I make adjustments for the climate of the end destination. Better known, high profile players will with their own roadies or crews, and will have a tech to do set-ups and such on a tour because of that. I know, it's what I used to do. And not just guitars.

I know what you mean, got a bum left shoulder and elbow myself, so I'm careful about guitar playing. Just be careful when the set-up is adjusted. any neck relief has to be done in increments and let it sit a day or two before making any further adjustments to neck relief. There's a high profile player who tours a lot with a number of people, and during the tours didn't give his JTV-59 enough settle in time after a neck adjustment and not small enough increments of adjustment. It result in a crack in the finish of the heel joint area. Didn't penetrate the wood, but the finish had a hairline in it. It's rare, but it has happened. So be careful when having someone adjusting the set-up after stringing with 11's.

Not angry,... more like oddly amused. But you would have to know my history and background to appreciate that comment,... but it's way too lengthy a history for me to get into here. "Maybe it complicates the cores/wrap wire of string and also mechanical properties of the bridge"--- ... wound strings do complicate it. L-wave in a string is basically a Newtonian oscillator bound by Newtonian/Galilean mechanics and Pythagorean intonation proportions. How they are tied and tightened at either end will play a role in things as well,... also needs to be considered. There are players out there who have gone to string sets starting with 11-gauge, for the purpose of getting a certain tone for playing "heavy metal" music. I always tell them to get the set-up adjusted for the tension change. It seems to do well for them... for that genre of music. If I recall, our own Sean Halley (the guy who does our demos and videos), last I talked to him, strings his JTV-89F with a set the starts with 11-gauge. And of course the set-up was adjusted for the change in string tension. 11's on a JTV-59 work fine, doing set-up on a JTV-59 with a set starting 12-gauge is a bit of a challenge, but I pulled it off okay. Needed an extra day of neck settle-in, but it worked. I have seen this a couple times before, where the wound or "wrap wire" strings were a problem. They ended up trying different brands of the same gauge until they found the right one for them.

http://line6.com/find/service_center/ ... is a good place to start for Line 6 authorized service in your area.

Looking at longitudinal waves,... I guess tha would depend on the elasticity of the medium. There are a number of variabes in the workings of a guitar that would counter L-waves. Siemic motion of earth quakes, surface acoustic waves (SAW) in microwave communications, ocean waves, solitons,... those are more likely when you consider the elasticity and density of the mediums the wave is travelling through, of the afore mentioned circumstances. L-waves are more in keeping with the engergy levels requred to generate L-waves. It's also more in keeping with acoustic violin construction research. Putting body tops and backs on vibrating tables to look at wave modes. With musical instruments, any L-waves would be more in keeping with hollow body. I'll need to look deeper into any research with solid body intruments. From your sound clip, there sounds like a secondary vibration that is getting picked up by the piezos and being processed. Whether it's an L-wave or not, don't know, they require significant energy. For a guitar, I would need a vibration table to confirm that. Not something we have in the service department. I'll have to get some else around here for that. I know about L-waves in the afore mentioned areas from first hand experience, part of my studies in college. Untrustworthy?? My colleagues don't think so. I've been studying waves of all kinds for 50+ years. And a number of my colleagues are in AES and IEEE (as am I). There are way too many variables to be looking at only one thing. We need to look at all the vairables and eliminate them as a cause, until the root cause s found.

The tube with a 10 volt bias has a problem. The amp needs to be taken in nd checked out. Maybe it's nothing more than a failed tube, maybe it's something else. Needs to be checked out by a tech who knows the product, preferably an authorized tech.

D'Addario NYXL,... interesting. Elixir Nanoweb Light strings(10-46 I think),... Just replaced a JTV-69 neck for someone earlier today and strung it with Elixir Lights that he supplied. I'll let you know how that comes out. ============== In the process of clocking out, I'll mull over the wave question over weekend and get back to you on that. I wouldn't fixate on any one thing, guitars have multiple ways of generating the same or similar symptoms, but from very different root causes. Surprised that your damping efforts near the head stock didn't help either. There was one guy once who over-did the damping and had a host different problems than you. I would think your damping efforts don't look like it's to that extent yet, so that good.

Try a 1/8 anti-clockwise turn at the Low-E bridge post. If it still distorts and frets, then give it another 1/8 anti-clockwise turn. No more than that.