Arturia Forums
Harware Legacy versions => KeyLab => KeyLab Technical Issues => Topic started by: m1ke on January 31, 2015, 07:21:37 pm
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Hello,
just got a Keylab 88 and just some problems.
I started with an external power supply 5V DC/1000mA and midi. But this was not successful.
As I switched on the Keylab, the display was quite bad to read, see picture "keylab88_ext_5V.jpg". And I was a little bit afraid too.
OK, then I started to play around with some stand alone VSTi. The middle C and G key did not work and after some time the sound got more and more crazy, wrong notes were triggered. ???
So I searched an USB cable and plugged it into my USB hub. Ah, the display
got readable and bright, see "keylab_USB.jpg" (same exposure of my cam!), but still playing nonsense.
After turning off and on the keylab worked well. :)
I checked my 5V DC, it had about 5.1V still connected to the keyboard and measured 2.1V between the
USB 5V and 0V pins at the and of my disconnected USB cable. Just for a test.
If you can take a view of
http://forum.arturia.com/index.php?topic=14223.0
there a different voltages mentioned. But with such a dark display I'm sure, the external 5V DC is not
the right voltage.
How can I get my keylab 88 working with an external DC supply?
Regards, m1ke
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I tested another 5V adaptor but this was not successful too. Result was just the same.
Please can anyone test this without USB but with an external 5V supply instead?
I can't believe that my brand new keylab88 is faulty right out of the box.
Thanks.
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Hi all,
my first post in Arturia forums. I got my Keylab 88 last week and it works pretty well without issues. It's an excellent keyboard controller and I'm very happy with it. It's updated to firmware 1.0.17
That said. I've plugged to my KL88 two kinds of external power supply unsuccessfully.
The first one came with a hub powered kit 5V DC/1000mAh and the right connector to plug in my KL88. The powered hub worked pretty fine with several USB devices but when I used it separately to plug in my keylab the screen didn't get bright enough. I returned this USB powered kit for that reason.
The second one is an specific power supply 5V DC/2000mAh with the right connector for KL88 too. The screen got too much bright so I returned this power supply too.
I purchased both in a specialized electronic devices shop and the shop assitants are technicians and they don't understand the reason why those power supplies don't work fine.
I've forgotten the idea about the power supply and connect the KL88 via MIDI right to my sound card so I connect my KL88 right to my computer via USB cable provided and it works fine. I'm a bit annoyed with this issue because I always do my work with a laptop and it's got a limited USB connectors and several USB devices like KL88 and sound card need a dedicated USB connector.
Could anybody write down any model that works fine ?
Thanks
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Jacas, thanks for your reply. You wrote that your display was too bright if you used your external 5V apaptor?
This is just the opposite of my oberservations, see pictures. Mine was too dark. Can't believe that!
So, I tried to use the 5V out of my USB HUB using an USB to DC connector adaptor. Using the USB
HUB worked if I use the keylab with the USB cable and USB powered but - as expected - using the USB as
5V adaptor did not work. Just then same as using the various 5V adaptors.
Regards, m1ke
PS: USB ports are sometimes rare...I agree
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Sorry, I'm late
Jacas, thanks for your reply
You're welcome
You wrote that your display was too bright if you used your external 5V apaptor?
Yes, I did. The second one.
So, I tried to use the 5V out of my USB HUB using an USB to DC connector adaptor. Using the USB
HUB worked if I use the keylab with the USB cable and USB powered but - as expected - using the USB as
5V adaptor did not work.
I didn't check the KL88 plugged to the USB powered hub so I can't report you if it works or not. I only used the power supply which came with the USB powered hub kit and connected it direct to the KL88 DC In.
PS: USB ports are sometimes rare...I agree
I think so.
I would like Arturia made that accessory. At least they wrote down some well-known model that works fine. They have already written a breath controller model in the manual.
Regards
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Can't be true that it is so difficult to find a working 5V DC supply. I tried many different ones without success.
An I measured the voltage at the DC input. Always OK.
The display and the behaviour of the keyboard show very clear that it is an under voltage problem.
Reasons could be:
1.) My brand new keylab is broken right out of the box. :P
2.) Spec is not correct and it needs a different (higher) voltage as claimed.
There was a lot of confusion in the past regarding the supply. I read first 12V then 6V and at last 5V.
... and those 5V do not work ...
I could send back my keyboard but then I might get back a new one maybe with the same problem.
Before I send it back I will ensure that the keyboard has a fault or not. Perhaps only a few use the
DC input.
Regards
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Hello m1ke and hi all,
just bought my Keylab 88 and I found problems in using the keyboard via DC power supply...
After a brief research on the web, I found in this discussion the same described problem.
The wrong behaviour is exactly the same to me. In using an external power supply 5V DC/600mA (bought to the purpose), the display is unreadable and after a few seconds the sound becomes totally instable (volume is lowered, pedal control goes off, strange notes...)
With USB cable connected to PC, all is OK instead.
But I would also be able to connect the keylab to an expander and trigger my performances/patches, since the Arturia product can work as midi controller in stand-alone mode...
m1ke, have you solved in the meantime the problem ? Or anyone else had the same issue?
Regards, aemiolia
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Hi aemiolia,
I had a longer correspondence with the arturia support. Although they write in the latest manual
from 2014 and in this article http://www.arturia.com/faq/utilization/wich-power-supply-psu#KEYLAB
to use a 5V 500mA it does not work.
The discussion with them was confusing because they first warned me to use other voltages than 5V and
in the last mail they wrote me: "You can use a 12 V, there is no known issues related to this."
But this is not official yet. I hope they do it soon.
I've tried a 6V supply and it worked. But on your own risk...
Regards
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Hi m1ke, many thanks for your reply.
Taken suggestion from your experience, I changed the voltage selector from 5V to 6V (at my own risk...)... well, seems to work fine to me too.
It remains a sense of uncertainty, these voltages ranging up and down between 5 and 12V. Hope the Arturia staff can clarify this matter in the future.
Thanks again and regards.
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Hi everyone,
I'm tester at Arturia
The fact is that 5V (500mA) supply work fine with all the Keylab series exept for the KL88. The Keylab 88 require more than 5.5 V at least to work prefectly.
We recommend
AC/DC Adaptor (5.5V to 9V - DC 500mA)
Center Positive
Such a PSU will do the job:
http://www.amazon.com/Universal-Center-Positive-Adapter-Charger/dp/B0064THKKE/ref=sr_1_fkmr0_3?ie=UTF8&qid=1383458349&sr=8-3-fkmr0&keywords=AC%2FDC+Adaptor%285Vdc500mA%29+Center+Positiv+5%2C5mm+X+2%2C1mm+X+12mm (http://www.amazon.com/Universal-Center-Positive-Adapter-Charger/dp/B0064THKKE/ref=sr_1_fkmr0_3?ie=UTF8&qid=1383458349&sr=8-3-fkmr0&keywords=AC%2FDC+Adaptor%285Vdc500mA%29+Center+Positiv+5%2C5mm+X+2%2C1mm+X+12mm)
During our test we were wrong by using a 5.5V power supply so we didn't see that it was not working with a 5V.
Sorry for the inconvenience, and the problems you have faced. We will now correct the Keylab 88 manual and the different ressources about this topic.
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Okay, now I'm more comfortable in using this excellent keyboard.
Best Regards!
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[...]
You can use 6V power supply it will cause any damage to the unit.
[...]
So, will or won't? not clear for me yet. Please, what's the right voltage for KL88? ... 6V? And if it was OK, when the KL88 is PSU powered, could be connected by USB to midi transmission or should we use midi cables?
I'm still waiting for an official answer ::) ... come on Arturia I don't think it was so difficult! ???
Thanks and best regards
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Sorry for this misspelling, I was meaning ,that you can use 6V power supply it will NOT cause any damage to the unit.
I hope it's clear now =)
Regards
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I cannot believe it. Today I've tested a 6V 500mA PSU and the KL88 turn on fine but the display background light has got too much intensity and it's difficult to read. There's no contrast function to set the brightness. So there's no PSU which works like the USB cable, at least not for me :(
Please let me know what can I do
Regards
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If you want a PSU that work perfectly you should find a 5.5V one. The display should not have too much background intensity with an higher one but there is an issue with the voltage regulator. But it will not cause any damage to the unit.
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I cannot believe it. Today I've tested a 6V 500mA PSU and the KL88 turn on fine but the display background light has got too much intensity and it's difficult to read. There's no contrast function to set the brightness. So there's no PSU which works like the USB cable, at least not for me :(
Please let me know what can I do
Regards
mA units are for DC (like phone batteries...) there's nothing to be on this case. We want AC suministry to KeyLab through a voltage control device at 5.5V or 6 (just see Watts)
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With latest firmware we have improved the LCD brightness with different PSU.
Please download latest here :
http://www.arturia.com/products/keylab88/resources
You can now use a 6 or 9v 500mA power supply with your kl88.
Remember that if you want to use USB connection with a PSU you need to connect PSU first.
Best
Ben
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With latest firmware we have improved the LCD brightness with different PSU.
Please download latest here :
http://www.arturia.com/products/keylab88/resources
You can now use a 6 or 9v 500mA power supply with your kl88.
Remember that if you want to use USB connection with a PSU you need to connect PSU first.
Best
Ben
With the new firmware upgrade LCD looks degraded brightness from blue to rose...Letters look brighter than old firmware. :-X
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Hi kaleid,
???
Sounds weird...
Could you please tell me what kind of supply you're using ?
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I don't use any DC adapter. My comment is to refer with the original USC connection.
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Hi Kaleid,
Could you please test with this firmware version :
https://owncloud.arturia.net/index.php/s/LreaCZOYQQeweiO
Let me know if this fix your issue
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Ben's proposal improves display readability when KL88 is USB powered. I did not try external supply with this FW yet.
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Wow ... that's something new. A maker of a product makes a mistake and now we can not power the unit as intended (by USB) ... and we're asked to find power supplies ourselves? And to plugin things up to 9V into a plug, that is labelled 5V? That sounds a bit scary .. I don't want to damage freshly bought my unit, which probably has some old firmware? Does the Ampere matter? Or does any 5.5V PSU work, as long as it is more than 500mA?
Would this work:
https://www.digitec.ch/de/s1/product/ansmann-universal-steckernetzteil-aps-600-72-w-3-12-v-universalladegeraet-5592006?tagIds=520-523
?
I find that a bit hard to believe, Arturia. If anything, you should ship free powersupplies out to anyone who bought an 88. If we did that to our customers, it would be goodbye forever. Especially since we also lost the nice feature of simpl yusing USB, and not having to use a second power cable/PSU.
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If you want a PSU that work perfectly you should find a 5.5V one. The display should not have too much background intensity with an higher one but there is an issue with the voltage regulator. But it will not cause any damage to the unit.
However 5.5 power supplies are EXTREMELY rare!! Arturia really should provide one (at the user cost of course) this is a MAJOR oversight!!! In Australia I can get a 5v, 6v 7.5v even 4.5v but NOT 5.5!!!!
Can Arturia make any suggestions please?
Thanks
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With latest firmware we have improved the LCD brightness with different PSU.
Please download latest here :
http://www.arturia.com/products/keylab88/resources
You can now use a 6 or 9v 500mA power supply with your kl88.
Remember that if you want to use USB connection with a PSU you need to connect PSU first.
Best
Ben
Before I buy a PSU can you 100% guarantee, with firmware 1.2.0.5 and above a 9v 500mH centre + power supply will work and will not "fry" my KL88?
Thanks
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With latest firmware updates you can now use a 9v power supply. (since FW 1.1.0.4)
No problem !
Check latest update 1.2.0.6
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Hi, I can't believe that this controller has all thoses issues...
It doesn't work properly with a 5v DC. I purchase another DC with a 6v option the display seems fine
But while playing with my external sound module ... After 10min or less the drama begins ... It's sad because the technical support don't help !!! :-\ :-\ don't get me wrong this controller I like it ... I love the way it's built and the feeling of the key notes but with all the issues I am having I don't think I will keep mine and it makes me sad ... Why thoses random notes after 5 or 10 minutes playing??? How can't I get it fixed??? How to set it up with an external sound module??? Can't someone help me please ...
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With latest firmware updates you can now use a 9v power supply. (since FW 1.1.0.4)
No problem !
Check latest update 1.2.0.6
^^^^ This. I can confirm (not that Ben needs it hahaha!) that this works 100%!
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Hi, I just picked up a new Keylab 88. I read up on all the power supply issues and wanted to make sure I did not miss or mess up anything with a brand new unit.
To be clear, I really just want to use this to control software synths on my Mac. I am not interested in the USB connection, only the MIDI one.
Therefore I need to make sure the external power supply works.
https://www.amazon.com/gp/product/B015PXUHYA/
Can someone from Arturia please confirm the above works. I ordered but have not tested. And also if this does work, should I use the 6V setting or the 9V setting.
Lastly, will the latest firmware make this all work ok, to use just as a MIDI controller?
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I think the supply will do the job. Double check the polarity before !!
Have a look at this :
https://www.arturia.com/faq/utilization/wich-power-supply-psu#KEYLAB
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Why would Arturia include a power supply that does not work? That's pretty annoying.
This power supply is listed as a replacement for the MKII on Amazon, but clearly doesn't work. A word to the wise....
https://www.amazon.com/dp/B0924KBJ45?psc=1&ref=ppx_yo2ov_dt_b_product_details
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Why would Arturia include a power supply that does not work? That's pretty annoying.
This power supply is listed as a replacement for the MKII on Amazon, but clearly doesn't work. A word to the wise....
https://www.amazon.com/dp/B0924KBJ45?psc=1&ref=ppx_yo2ov_dt_b_product_details
Arturia don't supply a power supply that 'does not work'. They don't supply a power supply at all. They do however list the requirements for a power supply, and expect their customers to have the basic intelligence to be able buy one which meets the specifications.
As for your link, anyone who buys that and finds it does not work should report it as such to the vendor.