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POD HD PRO Volume/Gain issues on startup.
by MathiasUlrick on 2013-01-25 12:10:23

This has been happening ever since I got the unit. L6 replaced the unit when I first got it and the new one has been doing it ever since. I have not been playing in a band for quite some time, but now I have been playing more and I have to restart the unit about 4-5 times every time I want to use it. This is annoying and I am troubleshooting it right now. So far I have rolled back the firmware to the earliest available, and had it not save my presets. After having done that I am reinstalling the latest firmware also chosing "NO" to keeping current patches. I am going to rewrite my old patches from scratch to see if the problem is in the old patches themselves or if it is just the unit. I'll update soon. I would like to communicate with L6 because I need to know what my options are for getting this repaired if it isn't just glitchy information from old patches.



Re: POD HD PRO Volume/Gain issues on startup.
by silverhead on 2013-01-25 12:15:22

If you're still having problems after the firmware update and patch creation I suggest you open a support ticket to work directly with Line 6 tech support. Go here:

http://line6.com/support/tickets/

....">http://line6.com/support/tickets/">http://line6.com/support/tickets/

....and select Contact Technical Support.



Re: POD HD PRO Volume/Gain issues on startup.
by MathiasUlrick on 2013-01-25 13:10:26

Okay so I rolled back the unit to the earilest firmware. Didn't have it save my patches. Updated it to the newest firmware, again choosing to not keep exsisting patches.

I wrote all my patches from scratch in the newest version of HD Edit.

I have power cycled the unit about half a dozen times and it hasn't dropped in volume or gain one time. I will keep an eye on this over the next couple of days and see if the results are consistent. If they are then I must conclude that there are some conflicts with patches created in older firmware when trying to be used with the newer firmware. I will make a recommendation after living with this for a few days.



Re: POD HD PRO Volume/Gain issues on startup.
by MathiasUlrick on 2013-01-25 13:13:54

I don't want to open a support ticket at this time, I just wanted to get your attention so that maybe we can figure out what is causing this problem and fix it for good.



Re: POD HD PRO Volume/Gain issues on startup.
by MartinDorr on 2013-01-25 13:49:11

Thanks for sharing this.

I am afraid I am in the same boat but have not spent the time to dig deeper like you.

For home ues it's usually not a big deal - must be horrible on stage when sometimes seconds count.

Martin



Re: POD HD PRO Volume/Gain issues on startup.
by MathiasUlrick on 2013-01-26 14:36:03

Well it didn't cut out at all yesterday but it has now done it about half a dozen times out of the 8 times I've turned it on today. Ticket time.



Re: POD HD PRO Volume/Gain issues on startup.
by rafgys on 2013-01-30 14:16:42

hi Mathias,I'm having the same problem, and have been browsing through the forums - apparently we are not the only ones. maybe we can group all of these threads into one larger "POD HD PRO startup" problem thread?

Maybe you can have a look at this thread http://line6.com/support/thread/88492">http://line6.com/support/thread/88492?tstart=0">http://line6.com/support/thread/88492in which I describe my problem. As you, I've also done complete firmware updates or refreshes, including wiping all my presets, but problem remains.

So I would like to know if you always start up your unit with the guitar cable plugged in? I noticed that sometimes "resetting my global parameters" (startup with navigation button pressed to the left) seemed to help, as well as setting all my preset inputs to global (guitar + mic) instead of using "preset". Since I guessed that the problem must somehow be "guitar input" related, instead of starting up with my guitar plugged in, I start up the unit, and let it complete its startup cycle completely before I plug in my guitar. I've just started doing that the last few days, and so far, that seems to solve the problem (fingers crossed - I've only started up about 5 times without problems, so hope it stays that way).

Since you, as well as Texxx had this problem with TWO units, maybe it's because we all start up with the guitar cable plugged in (PS: Texxx, in case you are following this thread, I would like to ask you the same question: did you also start up with the guitar plugged in).

If you do, can you startup without the guitar plugged in, wait a bit (30 seconds) and plug in to see if that helps. If we can find a "common" denominator to this problem, Line6 can do something about it. Maybe a high input signal from a high-output humbucker during startup triggers some kind of "protection mechanism" in the unit (to keep the output levels below a certain threshold or something?)

@ Line6

I don't know if this problem is known to you, but I think at least 10 people on this forum have mentioned this same problem. Are you guys looking into this, or do you consider this a "hardware glitch" in some pod hd pro's (because I think that this is not the case...). Since I also have a HD Bean and a HD500 in which I always leave my guitar cable plugged in, I do think it's only related to the PRO model (al my patches are exactly the same on all my units, with guitar + mic input setup, since that's the only common input method to all three POD HD's, if you want to use only one guitar input signal) - I have no problems on the HD500 and the Bean.

Maybe it's some kind of "input level" protection on the HD PRO guitar input connector that has been set differently for the HD PRO? I do hope you manage to find a solution. Maybe you can reproduce the problem by starting up a HD PRO, and during the startup cycle already start playing with a guitar with a high-output humbucker. Since some threads mention that version 1.3 of the firmware doesn't seem to give the problem, I think you should look at your implementation of the new "variable impedance feature" that was introduced since firmware 1.40. At the moment I can still use my PRO, but sometimes this problem seems to get worse, and since I bought this as a secondhand unit (four months old, so almost new), I suppose I'm now without warranty, so I do hope this can be solved with a firmware fix....



Re: POD HD PRO Volume/Gain issues on startup.
by Texxxxx on 2013-01-31 10:32:19

Since you, as well as Texxx had this problem with TWO units, maybe it's because we all start up with the guitar cable plugged in (PS: Texxx, in case you are following this thread, I would like to ask you the same question: did you also start up with the guitar plugged in).


rafgys-It's been a while, so I don't specifically recall.  I generally am not plugged in when I turn my HD Pro on.  Power up sequence is Furman power conditioner>Mesa Boogie 50/50 power amp with standby on>HD Pro>plug in guitar>take power amp off standby.  I'm sure I was plugged in sometimes, too.



Re: POD HD PRO Volume/Gain issues on startup.
by rafgys on 2013-01-31 13:57:04

Texxxxx, thanks for your reply.

It's a pity you can't recall this anymore - my HD Pro is still starting correctly for the time being (when I startup with my guitar unplugged), so I would like to see this confirmed by another user who has the same problem to know if I'm just lucky now, or if this really related to the problem. I guess I'll have to wait till someone else can test this (or till I'm having the problem again with my guitar unplugged of course ...).

Mathias, are you still following this thread, or did you already return your HD Pro?



Re: POD HD PRO Volume/Gain issues on startup.
by DAltjohann on 2013-03-27 03:11:15

Hi guys,

i got he same problem! - opend a support-ticket some minutes ago...

i usually start my unit with my wireless-system plugged in.

i did not test what happens, when i start the unit without anything plugged in the input.

i'll keep an eye on it.

but always starting the unit without anything in the input can not be a real solution!

Dennis




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