Emu XL-7 & MP-7 User's Group

>
> Whenever I try to sample or record from digital coax spdif output I can get
> roland sampler to lock then I record but after a little (45 seconds) while
> it says digital unlock and stops recording. recording digital coax works
> fine vs-1680 -> sampler and vs-840 -> sampler but sampler complains about
> command station -> sampler.
> So... I think the issue is definitely the emu. Anyone else have this
> problem?
> Also when slaved to Roland vs-1680 on MIDI at 140bpm it says anywhere from
> 141-147 on the emu.
> I think these issues are related maybe?
> why is the clock so jumpy? Does everyone's cs clock act jumpy? Is there a
> timing crystal I can have a tech replace? I love this machine other than
> wonky clock.
>

>
> Hi,
> 
> I had what I think is the same issue, and I found a way around it. Messing about with digital audio one day, I connected the XL-7's digital out to a TC triple C compressor. And there were loads of 'drop outs', brief silence every few seconds where the triple C could not lock to the Emu's clock. It seemed to get a whole lot worse depending on where I positioned the cable. I found that by connecting a single, standard jack lead between any one of the Emu's analog outs and any one of the triple C's analog inputs completely took care of that problem - the triple C locked perfectly to the Emu's clock from that point. Sounds good too :)
> 
> I can only conclude that there must have been too much interference on the original digital connection, maybe the analog link gave the two machines a common ground, or something? The cable I was using for the digital connection probably didn't help, it was just a battered old phono lead.... but anyway, just try running an extra cable from Emu to any of the analog ins on the sampler. 
> 
> Cheers
> Matt
> 
> --- In xl7@yahoogroups.com, Matt <somatt@> wrote:
> >
> > Whenever I try to sample or record from digital coax spdif output I can get
> > roland sampler to lock then I record but after a little (45 seconds) while
> > it says digital unlock and stops recording. recording digital coax works
> > fine vs-1680 -> sampler and vs-840 -> sampler but sampler complains about
> > command station -> sampler.
> > So... I think the issue is definitely the emu. Anyone else have this
> > problem?
> > Also when slaved to Roland vs-1680 on MIDI at 140bpm it says anywhere from
> > 141-147 on the emu.
> > I think these issues are related maybe?
> > why is the clock so jumpy? Does everyone's cs clock act jumpy? Is there a
> > timing crystal I can have a tech replace? I love this machine other than
> > wonky clock.
> >
>

>
> I don't know if its related, but a few years ago someone wrote about a fix for the E-Mu's digital connection. I will see if I can find that thread.
> 
> --- In xl7@yahoogroups.com, "retroillumination" <retroillumination@> wrote:
> >
> > Hi,
> > 
> > I had what I think is the same issue, and I found a way around it. Messing about with digital audio one day, I connected the XL-7's digital out to a TC triple C compressor. And there were loads of 'drop outs', brief silence every few seconds where the triple C could not lock to the Emu's clock. It seemed to get a whole lot worse depending on where I positioned the cable. I found that by connecting a single, standard jack lead between any one of the Emu's analog outs and any one of the triple C's analog inputs completely took care of that problem - the triple C locked perfectly to the Emu's clock from that point. Sounds good too :)
> > 
> > I can only conclude that there must have been too much interference on the original digital connection, maybe the analog link gave the two machines a common ground, or something? The cable I was using for the digital connection probably didn't help, it was just a battered old phono lead.... but anyway, just try running an extra cable from Emu to any of the analog ins on the sampler. 
> > 
> > Cheers
> > Matt
> > 
> > --- In xl7@yahoogroups.com, Matt <somatt@> wrote:
> > >
> > > Whenever I try to sample or record from digital coax spdif output I can get
> > > roland sampler to lock then I record but after a little (45 seconds) while
> > > it says digital unlock and stops recording. recording digital coax works
> > > fine vs-1680 -> sampler and vs-840 -> sampler but sampler complains about
> > > command station -> sampler.
> > > So... I think the issue is definitely the emu. Anyone else have this
> > > problem?
> > > Also when slaved to Roland vs-1680 on MIDI at 140bpm it says anywhere from
> > > 141-147 on the emu.
> > > I think these issues are related maybe?
> > > why is the clock so jumpy? Does everyone's cs clock act jumpy? Is there a
> > > timing crystal I can have a tech replace? I love this machine other than
> > > wonky clock.
> > >
> >
>

Sent: Wednesday, 14 December 2011, 15:30
Subject: [xl7] Re: Digital unlock! :(


  
I'm guessing the analog audio connection provided the proper grounding needing by the digital connection.

D7

--- In xl7@yahoogroups.com, "steve_the_composer" <smw-mail@...> wrote:
>
> I don't know if its related, but a few years ago someone wrote about a fix for the E-Mu's digital connection. I will see if I can find that thread.
> 
> --- In xl7@yahoogroups.com, "retroillumination" <retroillumination@> wrote:
> >
> > Hi,
> > 
> > I had what I think is the same issue, and I found a way around it. Messing about with digital audio one day, I connected the XL-7's digital out to a TC triple C compressor. And there were loads of 'drop outs', brief silence every few seconds where the triple C could not lock to the Emu's clock. It seemed to get a whole lot worse depending on where I positioned the cable. I found that by connecting a single, standard jack lead between any one of the Emu's analog outs and any one of the triple C's analog inputs completely took care of that problem - the triple C locked perfectly to the Emu's clock from that point. Sounds good too :)
> > 
> > I can only conclude that there must have been too much interference on the original digital connection, maybe the analog link gave the two machines a common ground, or something? The cable I was using for the digital connection probably didn't help, it was just a battered old phono lead.... but anyway, just try running an extra cable from Emu to any of the analog ins on the sampler. 
> > 
> > Cheers
> > Matt
> > 
> > --- In xl7@yahoogroups.com, Matt <somatt@> wrote:
> > >
> > > Whenever I try to sample or record from digital coax spdif output I can get
> > > roland sampler to lock then I record but after a little (45 seconds) while
> > > it says digital unlock and stops recording. recording digital coax works
> > > fine vs-1680 -> sampler and vs-840 -> sampler but sampler complains about
> > > command station -> sampler.
> > > So... I think the issue is definitely the emu. Anyone else have this
> > > problem?
> > > Also when slaved to Roland vs-1680 on MIDI at 140bpm it says anywhere from
> > > 141-147 on the emu.
> > > I think these issues are related maybe?
> > > why is the clock so jumpy? Does everyone's cs clock act jumpy? Is there a
> > > timing crystal I can have a tech replace? I love this machine other than
> > > wonky clock.
> > >
> >
>
I'm under the impression the connector/digital output board is faulty/unstable. I only get this problem when using the audition mode.

>
> I think I read that it had to do with grounding the ring on the digital out
> to the case where the chassis joins.