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My main Volume knob no longer lowers the right channel volume of my main output (or head phones). It controls the left fine. But with the Volume all the way down the right channel is still about 60%. Hardware defect?
Exactly the same problem here, I'm sending the unit back to TC, I suspect a hardware failure, though I'm on a mac and I also had ots of kernel panic and sound saturation...
very disapointed by this product was expecting a lot ! oh well ,has someone here about the focusrite safire?
Well i think this is more complicated then it seems.. This unit was working fine for the few months i have had it. Then this issue popped up.. I installed the 2.00 beta driver for PC and it has mostly fixed itself.. when i bring the volume all the way down the right channel is about 1% up (if that makes sense). I think it always responded like that. As soon as i raise the vol up a hair it evens out. I figure that was just the response of an analog pot. But now that i have seen the other problem it seems it's a digital controlled volume. So we need some clarification from TC. Come on guys i wrote up a support ticket for this a few days ago. what is your take on this?
Last edited by rhythminmind (2007-12-08 09:23:46)
I'm experiencing a similar behaviour: when lowering the volume a lot (I have a rather small home studio but rather loud monitors) the right channel drops out while the left channel is still clearly audible. I thought of a problem with the analog volume pot also but reading your post and thinking of it (it's nor that difficult to built a stereo pot, isn't it?) it seems part of the serious software defects of this unit...
I just got the same problem.. And the irony here is that I'm using a REPLACEMENT unit that was given to replace my first unit with exactly the same problem of main volume knob!
Unfortunately, most likely this replacement unit right now is not going to be covered by the warranty (it was given as replacement last winter).
The symptoms are not as bad as last time (yet) - when the right channel was simply unbearably loud. This time the problem is that main volume knob just doesn't seem to decrease volume of the right channel to the state of complete silence.. It's unlikely that it's NOT a hardware issue....
I think i figured it out!
With my unit it is a bug when using the ch 1/2 on rear inputs. whenever i activate these inputs from the front panel the right channel VOL Knob problem appears.. Can you guys test this out and let me know what happens in your setup..
Ok so i might of figured out what triggered the problem for me, but it doesn't fix it. So here is my work around till this is fixed. I plugged my main monitors into output 3/4. I set the 3/4 output to send out the output of the konnekt mixer. Then assigned the light ring knob to control the main mix volume. It now serves as a master vol control..
I'm 99,9% sure that the problem is a bad main output pot so when you touch anything on the front panel it makes the go bad ..I had the same problem and it took me some time to find the cause..at first I thought it was the headphones jacks..cause they are contact ones...so when I was just moving the plug a little I had one side go bad..I think i opened my unit like 5 times..and at some point I just changed this volume pot..even resoldering it correctly didn't cure the prob..but a new pot did
thx
Bruno
I'm not sure if this was coincidental, but my unit returned to "normal" equal volume on both L & R outputs. The continuous nasty "dirty pot" white noise sound that had developed was also eliminated. This occured when I had the control panel open, and was pushing the "dsp total recall" button on k24d front panel. Changing from one of the "p"s to the next, and/or raising and lowering the main output slider in the control panel crashed the control window, which seemed to reset the k24d to normal output behavior. I still have a very small amount of program bleed into right channel when the front panel output output level control is at "min".
I'm wondering if this would resolve the problem for anyone else?
If this isn't coincidental, this would seem to indicate a software control problem.
Teg
So maybe it was because i had the control panel open when selecting the rear inputs.. I usually leave my control panel open all the time.
I'm 99,9% sure that the problem is a bad main output pot so when you touch anything on the front panel it makes the go bad ..I had the same problem and it took me some time to find the cause..at first I thought it was the headphones jacks..cause they are contact ones...so when I was just moving the plug a little I had one side go bad..I think i opened my unit like 5 times..and at some point I just changed this volume pot..even resoldering it correctly didn't cure the prob..but a new pot did
thx
Bruno
Hi Bruno/all the rest of poor souls, suffering from this main output problem
Overall, totally agree with the above - this is a hardware probem
- the main output knob itself or whatever else is schematically linked to it inside the unit.
The worst thing is that the problem during past weeks became even worse for me (various unpredictable changes of stereo split). Haven't tried to open it & re-solder it yet but several times I saw that if I move the knob at least with a bit of pressure up/down/left/right the stereo split comes back to normal eventually...... Pretty sick thing to do to such an elaborate piece of gear as this unit, but what else is left?.... (I did mention that it's a second unit, replaced by the warranty, right?)
I'm almost sure there is a bad batch of those pots or may be something happened when they were soldered..the prob was not really present at first but it eventually got very bad ...
I sold the unit to a friend after changing the pot and it seems to work fine now
changing the pot isn't really easy when you have no electronic knowledge though
not sure what you can do except asking for another unit (again I know)
thx
Bruno
I have got the same problem since two weeks... The problem disappears itself and came back .... I tried to reinstall older drivers and firmware... the same...
Unfortunately my K24D is not under warranty any more... I don't know what to to ? Does TC will repair my unit ?
I'm really angry about TC....
And it's very weird that a hardware issue appears at the same time for a lot of people, so i like to believe that's just a software issue....
Last edited by kahneda (2008-01-01 23:24:16)
I have the same problem. It's getting me angry too. Just got rid of the driver's problems and suddenly this one appeared...
Last edited by Iva (2008-01-01 23:48:50)
If TC have any integrity at all, they will offer to replace or repair, at no charge whatsoever to the user, any units that have this problem (which may, in time, prove to be the majority). I wouldn't be surprised to discover that TC deliberately delayed or at least de-prioritized the release of working drivers until most of the first batch of Konnekts were out of warranty and they were no longer legally responsible for any hardware malfunctions.
All of you who have this prob just try this: push the main volume knob ,then pull it ,then try to push it toward the right,then left,then toward top ,then bottom...all of this while listening to something ...I'm sure at some point something will happen ...and then you will know it is the culprit
as it has lugs to maintain it on the PCB when you try to move it you are sure you are not moving the soldered part but any movement on the front panel like pushing a switch etc can make it bad BECAUSE it is hold there too
I'm almost sure there is a bad batch of those pots or may be something happened when they were soldered..the prob was not really present at first but it eventually got very bad ...
I sold the unit to a friend after changing the pot and it seems to work fine now
changing the pot isn't really easy when you have no electronic knowledge though
not sure what you can do except asking for another unit (again I know)
Unfortunately, softly moving the knob is the only solution left so far to bring back normal stereo split. The next step is opening the unit and using soldering skills (unfortunately, I have zero such skills, but I guess I'll have to find someone who knows what to look at).
Asking for ANOTHER unit once again from TC won't work cos the warranty for the second unit is expired..
The problem is that this hardware malfunction takes some time to develop - exactly right to show its signs after the warranty gets expired...... Awful.
bdguitars wrote:I'm almost sure there is a bad batch of those pots or may be something happened when they were soldered..the prob was not really present at first but it eventually got very bad ...
I sold the unit to a friend after changing the pot and it seems to work fine now
changing the pot isn't really easy when you have no electronic knowledge though
not sure what you can do except asking for another unit (again I know)Unfortunately, softly moving the knob is the only solution left so far to bring back normal stereo split. The next step is opening the unit and using soldering skills (unfortunately, I have zero such skills, but I guess I'll have to find someone who knows what to look at).
Asking for ANOTHER unit once again from TC won't work cos the warranty for the second unit is expired..
The problem is that this hardware malfunction takes some time to develop - exactly right to show its signs after the warranty gets expired...... Awful.
Don't you have a repair shop in your area ? the pot doesn't cost a fortune..what takes a lot of time is opening the unit actually... you should have about 30 minutes labor and the cost of pot
Guys, did you write to TC support? They answered me cleary well and i am happy with their answer:
Dear Andrey,
This is because the analog pot is not calibrated to minimum. I have the same on my Konnekt. If you want to mute the signal in the output, you must do it in TC NEAR control panel.
The advantage of the Analog volume is that the conversion Digitalæ to Analog can stay the same (level is at best quality) and the control of the volume is analog. The down side is that the analog potentiometer can let some signal pass at minimum. (but it should be very low).
Regards
Guys, did you write to TC support? They answered me cleary well and i am happy with their answer:
Dear Andrey,
This is because the analog pot is not calibrated to minimum. I have the same on my Konnekt. If you want to mute the signal in the output, you must do it in TC NEAR control panel.
The advantage of the Analog volume is that the conversion Digitalæ to Analog can stay the same (level is at best quality) and the control of the volume is analog. The down side is that the analog potentiometer can let some signal pass at minimum. (but it should be very low).
Regards
Andrey - the problem is not in eliminating just some 'bleeding' when the main output is set to "zero" - the problem is in proper control of the stereo field. For instance, with my (second, replaced) unit, the analogue pot - if set at around 10am postion - has left channel almost not audible and the right channel is fully audible.
But when the pot is at the (assumed) "zero" level, there's not only "bleeding" but fully audible right channel signal.
What concerns writing to the tech support - what point is in it now when my warranty is expired? They'd not be willing to replace the unit AGAIN (I had to go through various hoops to replace it even last time - since I'm residing in Moscow at the moment and the unit was bought in EU).
Don't you have a repair shop in your area ? the pot doesn't cost a fortune..what takes a lot of time is opening the unit actually... you should have about 30 minutes labor and the cost of pot
Bruno - you're totally right. That's what has to be done. Btw - was it hard to find a new pot of similar type/size for the unit? Or you re-attached the new pot after some resoldering?
The worst thing is that the problem during past weeks became even worse for me (various unpredictable changes of stereo split). Haven't tried to open it & re-solder it yet but several times I saw that if I move the knob at least with a bit of pressure up/down/left/right the stereo split comes back to normal eventually.
Same here, it's not a calibration problem then. There's something wrong with the pot. I even get static noise while changing the volume. The crazy thing is the timing, it's like these knobs have the same expiration date!
Same here, it's not a calibration problem then. There's something wrong with the pot. I even get static noise while changing the volume. The crazy thing is the timing, it's like these knobs have the same expiration date!
Yes, I hear some static noise as well when moving the knob. About the expiration date - it could be funny if it wasn't so sad. The second unit I got as replacement showed signs of this problem exactly around a year of its usage. Should I add that during that year the unit was not used anywhere live, was not transported anywhere - just because I was afraid that the pot problem would appear again? Ironic, isn't it.. Should have used it much more actively instead :-))
About the expiration date - it could be funny if it wasn't so sad.
If we humans were unlimited beings with infinite resources, yes, this would all be amusing instead of tragic. But if that were the case, TC would be immediately FedExing us all replacement units with fully-functioning drivers gratis.
Guys, did you write to TC support? They answered me cleary well and i am happy with their answer:
Dear Andrey,
This is because the analog pot is not calibrated to minimum. I have the same on my Konnekt. If you want to mute the signal in the output, you must do it in TC NEAR control panel.
The advantage of the Analog volume is that the conversion Digitalæ to Analog can stay the same (level is at best quality) and the control of the volume is analog. The down side is that the analog potentiometer can let some signal pass at minimum. (but it should be very low).
Regards
LOL..TC ,if continuing like this will got the palm for "nonsense"..cause if there's something you cannot a blame a manufacturer for ,it is those kind of hardware failure,cause there is no way you can "guess" it..so they could just recognise it without having to feel "guilty" cause they are not about this..now they are when they are not speeding up for delivering new drivers..but this they seem to find "normal"...
In case you would doubt about what I'm talking about I suggest you check this link ,and you will understand that I know what IS a pot failure ;-)
www.myspace.com/bdguitars
thx
BRUNO
Come on guys, just look at the positive of the situation ....
Finally, we've got a little powercore interface with the 2 Fabrik DSP plug ins at 300 € each.... Pretty cool isn't it ?
Ok i'm sorry that's my bad joke of the day....
By the way, my pot is definitively broken, any sounds on the left channel right now...
Happy new year from T.C Electronics...
Last edited by kahneda (2008-01-02 22:40:18)
Actually the fact that those pot do fail after about the same amount of time is just normal... Imagine some tires who all have the same default..they won't explode the first day or last forever..they will develop their prob about after the same amount of use
The pot is an ALPS I think the ref is RK14K122 10kAx2
You could ask TC for the exact ref
removing the old one and resoldering it won't fix it
thx
BRUNO