Emax

Thanks for your swift reply Ted! I will check that over i think you right about the power lead aka kettle lead as found on a water kettle.
While playback the hiss occasionally gets louder or dissapears. ive checked leads etc and made sure there not crossing other power leads.
If it were a ground difference or my machine needs to grounded how would i go about doing this? Isnt a plug grounded allready? sorry for confusion.
Thanks

--- In emax@yahoogroups.com, Ted Summers <djtbs1@...> wrote:
>
> reseat all the IC's on the audio board that are socketed.
> you may have a bad connection to a chip.
> you may also have a floating ground or voltage on the ground from a bad
> wire / cable that you are using to sample in, or also a ground difference
> level between your input device and the emax.
> 
> As stated before SE disk does not update anything else or make any other
> changes.
> the SE update disk only updates bits in an EEPROM IC that holds calibration
> parameters and the like.
> Not the system firmware EPROM.
>  - the Emax has no circuit  / capability to update the main system firmware
> EPROM, unlike newer video cards and pc motherboards that have that kind of
> capability (flash update).
> 
> But again I don't think that the SE update is your issue.
> 
> 
> I don't know what is meant by "kettle lead" ???....
> 
> If it plays fine with a previously sampled sound, it doesn't make any sense
> to blame the power supply.
> If the power supply were injecting something into the circuit, I would
> expect you would hear it at other times, not just sampling but also
> playback.
> as to some harsh sound when you power up, you may have a bad solder causing
> an arc on the power supply, it's connector, or power switch COULD be going
> bad.
> 
> There is no way to know it without seeing the unit.
> 
> If you don't know electronics, you should have someone with electronics
> repair knowledge look at it (Jammie is in the UK as I see you are also, per
> your email address)
> 
> Suggest you contact him and have him take a look.
> 
> Regards,
> Ted Summers
> Emax Yahoo! Users Group Co-Moderator
> 
> 
> 
> 
> 
> 
> 
> 
> On Wed, Mar 27, 2013 at 9:34 AM, Martin <martinantill@...> wrote:
> 
> > **
> >
> >
> > Hi All can someone help me as my emax 1 rack is petty useless to me as is.
> > someone previously posted this on my behalf and i still have the same
> > problem after calibration using the diagnostics sheet.
> > I cant seem to record or play samples without a high freq white
> > noise/static/hiss sound on top of the samples!? other than the SE disk with
> > sounds already on and any other factory disks(they play without noise and
> > the machine works perfect.)
> > It hasnt allways done this i used to be able to record without this noise
> > on top and all of a sudden it started acting up.Iv tried pretty much
> > everything calibrating,new os 1.1 3.2 and SE 1.1 on new disks made with
> > EXMP,Checked filters, sample rate adrs etc.Copied the working SE disk to a
> > formatted disk and then deleted the sounds then recording into it but still
> > the bad sound!.
> > I may have changed the kettle lead whilst moving could this be the
> > ploblem? Is there a specific spec for the emax power lead? or Is there a
> > setting/effect in the machine that could be the cause of this hiss/static?
> > Note with the lp filter i can filter out the white noise. the previous
> > owner told me the machine is not faulty if you can filter out the noise you
> > may have corrupted the disk/samples?.
> >
> > Theres allways a harsh ripping noise or click when i turn the machine
> > on.Im thinking there may be something wrong with the power supply or lead?.
> > Or Could it be ive used a disk that has corrupted the machine/os?? or
> > upgraded to the se twice and corrupted the machine?.
> > Once you have upgraded to SE can you use only disks with SE 1.1 on them?
> > or can you use other disks as long as there a EMAX os? ie 1.1 3.2 etc.
> > would formatting the machine back to original settngs then i can
> > re-upgrade to the se using a fresh disk help? Sorry for all the questions
> > just trying to sort this problem out so i can use the emax to sample/record.
> > Any suggestion would be very helpful!
> >
> >
> >  
> >
> 
> 
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>