Dec 30, 2010 7:33 AM
anyone have the Mission EP1-L6 working with HD500?
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Latest reply:
Feb 24, 2011 4:53 PM by
Dbourget 
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Rowbi wrote:
if this isn't the same in other Line 6 units, perhaps this is something that can be changed with firmware.
I expect it will be. The EX-1 "toes" at 10K, so even that shows the same behavior, even though far less pronounced.
the only issue being that if it's changed to a sweep wanting 10k, then all the people who've modded their pedals will have to un-mod them...
Exactly. That's why, instead of swapping resistors, I added extra ones. Because it'll take 10 seconds to cut them away if/when the issue is addressed.
I will mention this to Grand Master of us experts (aka Line6Miller) and see what the beef is, and if this could be tweaked.
I suggest also putting in a new feature request (which is probably what I will need to do too) so that the product manager sees this too.
That's great! Thanks
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well... perhaps the 'issue' is that LIne 6 intentially had the POD HD's function in a different way. the post earlier mentioned that someone else had made it work with some component mods, over and above what Mission say... as with any after market purchase, it's missions responsibility to make it work with the POD... it sounds like mission need to mod their mod kit... I also understand that L6 could make changes, but should they have to, to make someone elses product work???
Not wanting to start an argument, or anything. at the end of the day either side could make changes and it would work... but if the POD does work with line 6's EX1 ok, then Line 6 aren't going to change it, and it's up to Mission to change their pedal I'm afraid... but we'll see
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Thanks Guys! I'm glad to know I'm not the only one having issues
I would like to get these working because they are great looking and feeling/quality pedals plus after spending this much time returning them would be a loss.Two questions:
Racetra
I have a new Ernie Ball VP Jr. just laying around. To use in the FX loop would it just be "FX Send" from HD500 into "input" on the VP Jr. and "output" from VP Jr. into the "FX Return Left(Mono)" on the HD500?....then add FX loop in chain or course
Tommasi
As far as soldering in more resistors in parallel to correct the Mission pedal. Are you saying to just solder a chain of resistors in place where the one in the photo (below) exists so there may be 3 or 4 in line? If so, where can you buy the resistors and what value or specs would I be looking for?
Thanks,
Derek
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Ok --
the resistor you have pictured there is a 22K (red-red-orange) -- meaning that your pedal is the "upgraded" version from Mission Engineering. My pedal (old, non-upgraded version) had a 47K resistor in that position.
Now, your upgraded pedal probably has a toe resistance of 1/R = 1/20K+1/22K => R=10.4K -- close to Line6 Specs.
If your HD has the same behavior as mine, you can just wire another 22K resistor (red-red-orange, just like the one you have) in parallel to the one picured. That would bring the "toe resistance" to: 1/R = 1/20K+1/22K+1/22K => R=7.1K -- close to what the HD expects.
You need to wire the new resistor in parallel ("chain" as you mention would be in series): http://physics.bu.edu/py106/notes/Circuits.html
Make sure you can cut away the new resistance easily if the HD firmware is upgraded to respond to 10K.
For the sake of completeness, I wired as many as 3 extra 47K in parallel to the 47K I already had there, because I didn't want to get out in the cold, and I only had 47K resistors at home. That brought my toe resistance to 7.4K, but the insides of the pedal now look a bit messy.
You can find resistors of this type at any electronic component store, and it's going to be just a few cents.
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Ok, so here is my quick and dirty solder job removing the existing resistor and using 2 (1/2 watt 22k) resistor in parallel.
What do ya know....it seems to work perfectly....heel @ 0% and toe @ 100%
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UPDATE
Ok it doesn't work completely perfectly....the heel is @ 0% and the toe @ 100% but the sweep is accelerated so by the time you get 50% of the way through the sweep you have hit 75%-80% volume as opposed to the expected 50% volume.
Not ideal but much, much better than before
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Thanks Tommasi for all your help!!!
Derek
Message was edited by: dschaaf
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dschaaf wrote:
Ok, so here is my quick and dirty solder job removing the existing resistor and using 2 (1/2 watt 22k) resistor in parallel.
What do ya know....it seems to work perfectly....heel @ 0% and toe @ 100%
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UPDATE
Ok it doesn't work completely perfectly....the heel is @ 0% and the toe @ 100% but the sweep is accelerated so by the time you get 50% of the way through the sweep you have hit 75%-80% volume as opposed to the expected 50% volume.
Not ideal but much, much better than before
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Thanks Tommasi for all your help!!!
Derek
Message was edited by: dschaaf
ok so taking into account the 2% tollerance on those resistors, would mean the parallel resistance could be anything between 10.75 and 11.25 Kohms.
the EX1 is a pair of 20k variable resistors in parallel to give a sort of poor mans log scale of 10Kohm.
I don't have one of these pedals, but it seems to me that the idea of putting resistors in parallel was to keep the original resistor and not change that... and to add others to make the desired resistance, so at a later date they could easily be snipped off leaving the original one... as far as replacing them both for 22K resistors, you may as well have just used a single 10K 1% resistor, or bought a pack of 10K 5% resistors and hoped for the best that one would be under spec'd by 5% giving you less.. or even put a 100K and a 10K in parallel, which will give 9Kohms... here's a handy calculator. just put the values in the boxes click calculate and it tells you the total resistance of those parallen resistors.
also to clarify some other points, resistors can work either way around. the wattage should be 1/4watt or more (more wont affect anything, except the resistors will be physically bigger)
based on you saying volume 75-80% was hit at 50% sweep, I'd say the idea of approx a 7.5K resistor (they are available in that specification) would be good, with maybe a few spare 1K and 470ohm(that's not a type, I mean 470ohm) so you can put them in series with the 7.5 to tweak it to make it perfect. or get a 10K one of these: http://www.maplin.co.uk/cermet-preset-potentiometers-2200 or other small potentiometer and then you can tweak it to perfection.
Cheers
Rowbi
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hello, i've the same problem with my hd500 and my EP1 L6, i've contact mission 2 time, but i'm waiting answer from them.
you can see a photo of my pedal, and the resistor.
where i leave it's difficult to found electronical component.
I would like to be sure to command the good one, maybe on ebay.com
but what i have to do ?? what's the good value for the resistor, do i have to unsold the one allready inside ?
thank you for your help.
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i've tried to join support from "mission" by phone, but nothing....by mail too, i'm waiting an answer from them. I am very disappointed and angry also.
It's impossible to control volume on stage, the course is too short....i really want they send to me the good conponent to replace, It is the slightest things.
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