djrespect
Joined: 19/04/07
Posts: 83
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Fatar SL-1100 problem
#986617 - 09/05/12 10:22 PM
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I have a problem with my Fatar Studiologic SL-1100: The f#' key is much louder
than all the others; so for example if I play a scale containing this note all notes have
the same volume and velocity, except the f#', which produces a higher velocity and sounds
louder (and no, I don't hit it harder  ). I thought I'd post this here before I open it up, maybe someone has an idea what the
problem could be and how to solve it. I guess it won't save me the trouble of
disassembling the keyboard, but any tip or hint on what to look out for will help... Thanks in advance for any input on this!!
-------------------- http://soundcloud.com/andow7000
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desmond
Joined: 10/01/06
Posts: 7901
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Re: Fatar SL-1100 problem
[Re: djrespect]
#986622 - 09/05/12 11:17 PM
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I have an earlier model, and my velocity sensitivity is shot on a few keys. The general
consensus is the rubber key contacts tend to perish, and you can buy replacements if you
google around. I've never got around to doing mine as I'm not using it much, but it's on
the list of things to get around to...
(...assuming you've ruled out software
issues (e.g., transpose the keyboard up an octave - does the same key mis trigger, or does
the mist rigger shift upwards an octave, use a different DAW and see if you don't get the
same mistrigger etc)
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DGL.
Joined: 28/10/11
Posts: 239
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Re: Fatar SL-1100 problem
[Re: djrespect]
#986659 - 10/05/12 08:43 AM
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Bit tricky if you haven't done it before but simply cleaning the key contacts can work
wonders.
You will need to take the keyboard apart, take off the offending key
(remove the spring from the back of the key and ease the key out, under the key will be a
rubber strip lift off the section (carerfully) under the affected key (it may be helpful
to take off each key either side for better access).
Then using a cotton wool bud
with a tiny bit (on the bud) of VERY mild cleaner (window cleaner is good) or contact
cleaner or similar clean the black contacts both on the pcb under the rubber strip and on
the rubber strip.
There will be 2 contacts on each, the difference in time
between when one is touched and the other one is touched works out the velocity
sensitivity.
and if one is dirty and not contacting correctly it just sees it as a
fixed velocity (i.e. full)
Put back together and it should work.
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BJG145
Joined: 06/08/05
Posts: 2159
Loc: Norwich UK
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Re: Fatar SL-1100 problem
[Re: DGL.]
#986661 - 10/05/12 08:50 AM
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Quote DGL.:
cleaning the key
contacts can work wonders
I seem
to remember an excessively loud key being caused by a piece of grit, so it might be worth
trying compressed air if it looks tricky to dismantle. Otherwise you'll need cotton buds
and a can of DeOxit.
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djrespect
Joined: 19/04/07
Posts: 83
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Re: Fatar SL-1100 problem
[Re: djrespect]
#986832 - 11/05/12 07:16 AM
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Thank you very much for the replies!! First of all, I did pretty much
everything to rule out any external errors. I tested it with different VST instruments,
external sound modules and also transposed up and down - same problem on the same key. @DGL: Thanks for your detailed explanation! I once cleaned the contacts of a small
Edirol keyboard from a friend, but the problem with this was that some keys were
completely dead. With your explanation on what the purpose of two contacts is, it
really seems that this could be the problem! I think I just have to get my
contact cleaner and cotton buds ready and wait till I have some time for this project...
-------------------- http://soundcloud.com/andow7000
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John F
member
Joined: 24/11/03
Posts: 93
Loc: Canterbury, UK
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Re: Fatar SL-1100 problem
[Re: djrespect]
#986929 - 11/05/12 06:09 PM
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I had one of these, and other Fatars, and became very good at cleaning them - every couple
of years it would need doing. Just as a starter, try blowing VERY hard between
the offending keys. This can work....occasionally. The keyboard comes apart
easily.... if you know what you're doing! Yell if oyu get stuck...
-------------------- Current live keyboards - Kurzweil PC3x - Korg Triton Extreme + Moss - Roland V-Synth V2. www.xyzband.info
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djrespect
Joined: 19/04/07
Posts: 83
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Re: Fatar SL-1100 problem
[Re: djrespect]
#986974 - 11/05/12 11:38 PM
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Thanks for your tips and help, John F! Actually I already do have a question before I
even start: Are the parts inside the keyboard attached to the top or bottom
enclosure? So after I removed the screws at the bottom cover do I turn it around again
before I lift the cover or does it stay upside down? I guess I will find out if I try but
I just want to be shure... Btw: I tried blowing between the keys until I got
dizzy, unfortunately with no change. I guess I would need compressed air which I don't
have...
-------------------- http://soundcloud.com/andow7000
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Folderol
Joined: 15/11/08
Posts: 2551
Loc: Rochester, UK
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Re: Fatar SL-1100 problem
[Re: djrespect]
#987057 - 12/05/12 03:40 PM
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Just a quick note. I always advise against using compressed air on any electronics. For a
start, can you be sure there are no contaminants in the compressor? Also if there is any
dust around, you stand a good chance of blowing it into the kit instead of out of
it! Finally, a blast of compressed air can actually break older delicate components and
shatter age-brittled plastics.
--------------------
It wasn't me!
(Well, actually, it probably was)
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Exalted Wombat
Joined: 06/02/10
Posts: 4211
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Re: Fatar SL-1100 problem
[Re: Folderol]
#987148 - 13/05/12 12:19 PM
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It might be a bit of crud on the cotact strip, it may be a collapsed rubbery bit on the
contact strip. Order a set anyway, they're cheap enough. Fatar themselves don't want to
know, but their keybeds are used by many manufacturers. I use Kurzweil keyboards, but
order the strips from Korg UK. They have a very helpful service department and will take
a personal credit-card order over the phone.
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