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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

Message

Re: DX7 plays no sound....

2006-10-31 by gil_we

No I don;t think so. You need the two original ROMS that have been 
removed once installing it. Sounds like bad contacts somewhere. I'll 
check it out.



--- In vintagesynthrepair@yahoogroups.com, "GB" <grantbt@...> wrote:
>
> Remove the E! ?
> 
> GB
> 
> ----- Original Message ----- 
> From: "gil_we" <gil_we@...>
> To: <vintagesynthrepair@yahoogroups.com>
> Sent: Tuesday, October 31, 2006 3:48 AM
> Subject: [vintagesynthrepair] Re: DX7 plays no sound....
> 
> 
> Hey buddies,
> 
> After following the procedure for master reset proived with the E1
> Expansion Card manual (which is on my DX7), I can finally hear
> sounds, but it behaves very strangely. Most of the times when
> powering it On, sounds will play, but some notes sustain forever,
> volume changes between notes, some notes are cut after a few
> miliseconds, some do not play at all, some play well.... all
> randimally. On the other hand, I could once have it playing just
> fine !
> 
> What do you think could be the problem ?.....
> 
> 
> 
> 
> --- In vintagesynthrepair@yahoogroups.com, "Miguel Mendoza"
> <miguel@> wrote:
> >
> > Thanks François, that would be a good info.
> >
> > Cheers!
> >
> > Miguel.
> >
> >   ----- Original Message ----- 
> >   From: francois basquin
> >   To: vintagesynthrepair@yahoogroups.com
> >   Sent: Tuesday, October 31, 2006 2:06 AM
> >   Subject: Re: [vintagesynthrepair] Re: DX7 plays no sound....
> >
> >
> >   Miguel,
> >
> >   there is a procedure to reset the entire DX (and to empty all 
the
> mem). I
> >   don't rember it well, but I do have it in a book and can find it
> if
> >   necessary.
> >
> >   François
> >
> >   >From: "Miguel Mendoza" <miguel@>
> >   >Reply-To: vintagesynthrepair@yahoogroups.com
> >   >To: <vintagesynthrepair@yahoogroups.com>
> >   >Subject: Re: [vintagesynthrepair] Re: DX7 plays no sound....
> >   >Date: Mon, 30 Oct 2006 18:28:01 +0100
> >   >
> >   >Hi Narfman,
> >   >thanks a lot for your answer and help. I needed the system
> settings because
> >   >I had an issue with the keyboard, only one octave was playing, 
I
> though it
> >   >might be a hidden option in the system setup. But it was due to
> a hardware
> >   >problem already solved.
> >   >
> >   >Thanks again for your help.
> >   >
> >   >Kind regards.
> >   >
> >   >Miguel.
> >   >
> >   >
> >   > ----- Original Message -----
> >   > From: narfman96
> >   > To: vintagesynthrepair@yahoogroups.com
> >   > Sent: Sunday, October 29, 2006 3:49 PM
> >   > Subject: [vintagesynthrepair] Re: DX7 plays no sound....
> >   >
> >   >
> >   > Miguel,
> >   >
> >   > E-mail me at Narfman96 at yahoo dot com if you want the sysex
> for
> >   > the DX7II setup. I couldn't find your address as it's private.
> >   > I'm not sure you wan't just any system setup because it 
defines
> >   > evrything from the CC controller id's to the patch change
> transmit
> >   > buffer. All the midi channels for each voice group (A or B)and
> the
> >   > transmit channel (I use ch. 1). Local on/off and sysex on/off
> are
> >   > located in the setup file too. Be careful. It may be easier to
> set
> >   > your synth for the way you use it with your gear and save that
> setup.
> >   > Either way if you contact me I'll send you whatever you 
need...
> >   >
> >   > Narfman (I'm in all the Yamaha DX groups also.)
> >   >
> >   > --- In vintagesynthrepair@yahoogroups.com, "Miguel Mendoza"
> >   > <miguel@> wrote:
> >   > >
> >   > > Hello, I think you should also to restore the system 
settings
> that
> >   > were in the memory like master tunning, volume and voice
> tunning.
> >   > > By the way, does anybody have a system backup sysex file of
> the DX7
> >   > II or can do it? Please, if you could send it to my email. I
> would be
> >   > very grateful.
> >   > >
> >   > > Regards.
> >   > >
> >   > >
> >   > >
> >   > > ----- Original Message -----
> >   > > From: gil_we
> >   > > To: vintagesynthrepair@yahoogroups.com
> >   > > Sent: Sunday, October 29, 2006 9:32 AM
> >   > > Subject: [vintagesynthrepair] DX7 plays no sound....
> >   > >
> >   > >
> >   > > I just got a DX7 (first version), and it plays no sound.
> >   > >
> >   > > I first checked the battey - and indeed it was low. I
> replaced it
> >   > with
> >   > > a new 3v lithium, preset banks has been reset as expexted.
> >   > >
> >   > > I tried playing some patches from the ROM cartridge (which
> didn't
> >   > > suppose to be affected by the battery change), and 
programming
> >   > some new
> >   > > patches, but no sound it heard on neither. Anyhow, I can 
hear
> the
> >   > hiss
> >   > > coming from the amplification circuit...
> >   > >
> >   > > does anyone have any idea where should I look at ?
> >   > > Is that a common problem on the DX7 ?
> >   > >
> >   > > Thanks, can't wait to make it work ;)
> >   > >
> >   >
> >   >
> >   >
> >   >
> >
> >   __________________________________________________________
> >   Voyez vos amis en faisant un appel vidèo dans Windows Live
> Messenger
> >   http://imagine-msn.com/messenger/launch80/default.aspx?
locale=fr-
> ca
> >
> 
> 
> 
> 
> 
> 
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