Emax

Thanks for the tip! I had a good look at the mechanism last night but it
seems to be sound. I'm convinced this is electronic. It fails the same way
every time after about the same time. Almost as if a once a certain
component has been running for a while and heats up, it cuts out and the
signal from the wheels goes with it.

While I'm at it, one of the keys is intermittently triggering a minimal
velocity value no matter how hard I hit it. If anyone's managed to fix
anything like this, I'd be interested to hear how it's done. I did look at
Emulator Archive for some tips and it says the keyboard assembly is a
difficult beast to fix, so again I guess this is another sign that I need a
new master keyboard!

Steve

> -----Original Message-----
> From: Ted Summers [mailto:djtbs1@...]
> Sent: 16 November 2004 03:25
> To: emax@yahoogroups.com
> Subject: Re: [emax] Wheels not working
>
>
>
> I would think the modulation wheels are moving potentiometers. If they
> are, verify that the wheel isn't held on by a set screw. If it is the
> screw may be loose, which would cause improper adjustment of the pot
> and it could then stay at an incorrect location in its turning radius
> (ie- turns, but when springs back, doesn't go back). When you modulate
> up again, you might then break the pot. If that is the case, you should
> be able to get a replacement fairly easily.   Just find out how many
> ohms it is and find out if it is a audio or linear taper... I have an
> Emax 1  so unsure if that part would be the same or not. Rob at emu
> archive might know what the values/ and taper are.....pots are pretty
> standard. There are a few varieties, but not that many, and if you can
> find the value, your good to go. You could get both styles of taper and
> see which one seems to work "properly" so to speak. You can also
> determine the value by hooking up a digital multimeter to the two
> outside lugs and noting the measurement.  many times the pot will
> indicate value on the side. or bottom.....
>
> Thanks,
> Ted