Re: DX7 plays no sound....
2006-11-03 by gil_we
Retraced and so far working ok. One thing that I haven t managed to set up is the Internal Memory Protect to set to OFF. Each time I power the machine off, it
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Re: New Oddy
2006-11-03 by John Koumoutseas
... Ooops, upon reading this post, the CA3086 sound right, sorry. John ... VCO ... be a ... don t ... chip ... common. John ... could ... and ... fourth. ...
Re: New Oddy
2006-11-03 by John Koumoutseas
Yes it is fixable it is a common chip. I don t have thae schematics in fron of me but I think it s a CD4001. Cheap too. John ... chip ... John ... could ...
Korg 770 DIY CV sockets
2006-11-03 by tomas_peterka
Hi, does anybody have the schematics for DIY Korg 770 CV sockets. Thanks Tom
Re: DX7 plays no sound....
2006-11-03 by gil_we
Well, looking closely at the circuit I found some corroded traces... I guess there is a great chance that this is the cause of the problem - will retrace and
Re: New here - and need help with something
2006-11-03 by sothatswhereiwent
Ok - next question: where can I get the schematics? Can I get them anywhere online? And while I m at it is there a way to beef up the LFO? Can I somehow make
RE: [vintagesynthrepair] New here - and need help with something
2006-11-03 by Scott Nordlund
... The breath controller input probably expects a resistance to be applied, not a voltage- I d imagine it blew the first transistor, op amp, or whatever after
New here - and need help with something
2006-11-02 by sothatswhereiwent
Hello, everyone! I have found an old yamaha CS01 synth in a pawn shop and it worked fine so far until I borrowed to a friend and he had the really stupid idea
Re: DX7 plays no sound....
2006-11-01 by gil_we
It would be so great if you could send it... Lemme know :) ... been ... I ll ... the E1 ... forever, ... just ... sound.... ... all ... find it ... sound....
Re: Yamaha CS01II mods questions
2006-11-01 by P........
Yes, they are quite rare. I hardly find the II on ebay. I have already considered to midify that thing but right now it would bust my budget, so I would rather
Re: DX7 plays no sound....
2006-10-31 by jim
Hi Miguel Many years ago, I had a DX7 and put an expansion card to get 4 internal banks. to install the card, I d to remove the genuine IC ROM from the DX. I
Euro/US power diffs a problem for Roland VS-1...?
2006-10-31 by Paul Skibitzke
I ve recently purchased a Roland M-VS1 rackmount vintage synth module on ebay. The trick is that the unit is a european make, wereas I am in the U.S. My
Re: [vintagesynthrepair] Re: DX7 plays no sound....
2006-10-31 by grantbt@jps.net
I don t think those ROMs would be that hard to come by... GB
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. ... the
Re: [vintagesynthrepair] Re: DX7 plays no sound....
2006-10-31 by GB
Remove the E! ? GB ... From: gil_we To: Sent: Tuesday, October 31, 2006 3:48 AM Subject:
RE: [vintagesynthrepair] Re: DX7 plays no sound....
2006-10-31 by Scott Nordlund
... Could be a problem with the expansion board, or maybe just something loose or unseated- can you remove it and turn it back into a normal DX7?
Re: DX7 plays no sound....
2006-10-31 by gil_we
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
Re: [vintagesynthrepair] Re: DX7 plays no sound....
2006-10-31 by Miguel Mendoza
Thanks François, that would be a good info. Cheers! Miguel. ... From: francois basquin To: vintagesynthrepair@yahoogroups.com Sent: Tuesday, October 31, 2006
Re: [vintagesynthrepair] Yamaha CS01II mods questions
2006-10-31 by Jez
I used to have a CS01 and I deeply regret having let it go. The PWM Bass is simply awsome. If that really is a Mk2 you ve got, then that is quite a rare beast.
Re: Yamaha CS01II mods questions
2006-10-31 by P........
What I did is to mess with the 2 pots for the filter adjustments (cleerly labelled on the board - thanx, Yamaha! :)) and now it screams alot! I came to the
Re: [vintagesynthrepair] Re: DX7 plays no sound....
2006-10-31 by francois basquin
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
RE: [vintagesynthrepair] Yamaha CS01II mods questions
2006-10-31 by francois basquin
Yes, interesting project, but I m not sure CS01 is the best candidate for such a customization. I don t have the schematics, but I opened mine a couple of
Re: [vintagesynthrepair] Re: DX7 plays no sound....
2006-10-30 by Miguel Mendoza
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
Re: New Oddy
2006-10-30 by balderson04
... not the orange kind. hmmm could any synth tech fix her or should i save my money and get it to an arp tech? You should have the Rev. 2 boards.
Re: [vintagesynthrepair] Re: New Oddy
2006-10-30 by tyler
its not white but black i think its the II. it has gold lettering not the orange kind. hmmm could any synth tech fix her or should i save my money and get it
RE: [vintagesynthrepair] DX7 plays no sound....
2006-10-29 by Scott Nordlund
... Check the output of the DAC, before any lowpass filtering or anything is applied. If you have a signal there, it s probably fairly simple to track down
Re: New Oddy
2006-10-29 by balderson04
Looking at the Odyssey tech manual, the only chip connected with VCO 2 on the Revision 1 board is a quad input NAND gate, which should be a simple fix. On
Re: DX7 plays no sound....
2006-10-29 by narfman96
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
Re: [vintagesynthrepair] DX7 plays no sound....
2006-10-29 by Miguel Mendoza
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
DX7 plays no sound....
2006-10-29 by gil_we
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
Re: New Oddy
2006-10-28 by iwishiwascrying
is the chip fixable? or am i out of luck : /
Re: Step up converter for System 100 Mixer
2006-10-28 by easterleggs
well, I need it straightaway, and it s a project that would take some time for me. eventually I ll put the good advice to use, but for now I just need to
Re: New Oddy
2006-10-28 by John Koumoutseas
The slider could be bad but it think it s most likely that the chip in the oscillator circuit is bad. That is usuall most common. John ... try using an
Yamaha CS01II mods questions
2006-10-28 by P........
I ve got this olde yamaha cs01 which is functional but in a bad shape - no case, just bare electronics. It s a wonder that this thing works at all. I would
RE: [vintagesynthrepair] Step up converter for System 100 Mixer
2006-10-27 by francois basquin
Stephen, I don t know if it is applicable in your case, but in my studio (here in Canada), I have both 220 V and 110 V sockets, as half of my instruments come
Re: Step up converter for System 100 Mixer
2006-10-27 by ferrograph632
... ah, & after all that.... radio shack, then. or circuit city, whatever s closest to you. remember to check the power ratings carefully- some of these
Read: [vintagesynthrepair] Hammond XB-2
2006-10-26 by Chuck Casavant
RE: [vintagesynthrepair] Hammnond 144K - when '8 bar is on max position, distort
2006-10-26 by Scott Nordlund
... You should suspect a divider chip when the same note in each octave is having a problem. In your case it sounds more like the mixing circuitry- you could
Hammond XB-2
2006-10-26 by Chuck Casavant
To All, I have the subject keyboard and I am trying to permanently turn-off the split keyboard function on some of my presets. I tried it as the book says, go
Hammnond 144K - when '8 bar is on max position, distorted sound will be heard
2006-10-26 by gil_we
When I pull the upper manual s 8 slider to max, the 8 and 16 flutes on the lower manual are totally distorted and noisy. I opened the back cover to start
Re: [vintagesynthrepair] New Oddy
2006-10-25 by Mike B
It could be dirt in the slider on the mixer control. You could try using an electrical spray cleaner (Contact Control Cleaner and Lubricant from Radioshack)
New Oddy
2006-10-25 by iwishiwascrying
So i recieved an odyssey and everything is fine with it except i cannot get any sound to come from the second osc. Im not sure what the problem could be or if
Step up converter for System 100 Mixer
2006-10-25 by easterleggs
I have resolved to use a step up transformer to power my newly acquired Roland System 100 Mixer (25 watts). Can anyone recommened a good brand/source for one
Re: [vintagesynthrepair] Wanted: DX7 or DX9 parts
2006-10-25 by Peter Bye
Michael: There is a remote possibility I have the parts you are looking for, Contact me next week and I will see what I have. I will be out of town until
Re: [vintagesynthrepair] Re: Arp Avatar -- no sound.
2006-10-25 by Mike B
Thanks Stephen, I could not get the VCF or the LFO to self oscillate throught the output. I was able to check some of the connections using some pictures
Arp Avatar - only has output from "Audio In"
2006-10-25 by moremodernmusic
I have an Arp Avatar that only has output from the Audio In connection. The output seems to inclde both oscillators but seems to bypass the envelope, LFO and
Re: Arp Avatar -- no sound.
2006-10-25 by easterleggs
Can you get the VCF to self-oscillate using the normal output jack? There s one master chip for the VCA (synthfool may have these?). I forget the number,
Wanted: DX7 or DX9 parts
2006-10-25 by Michael Bacich
Hello list, I m looking for a part for an original Yamaha DX7, and I wonder if any of you out there have an old unit that s not working that you might want to
Re: Service Manuals/Schematics: Will Buy/Trade
2006-10-22 by maschinengeist001
Hi! Email sent Thanks in advance
faulty novation bassstation rack...
2006-10-21 by win_uk_2001
Hi i know its not quite a vintage yet (only 10 years old) but my bs rack displays 11 then 22, 33 etc all the way to 99 when going up and down the program