Steve,
The VCFs in the E70 are not the same (at least if we go by the model numbers) as the CS-synth filter ICs. You would have to find an E30 to get them. And as far as I know, this is the only Electone that has the VCF. You're in MI, right? ... lots of electones on craigslist out there. Keep your eyes open. That's where I got mine.
Also Doug at Synth parts seems to always have the VCF in stock... and he's great to deal with.
-Damon
--- In yamahacs80@yahoogroups.com, "Mike" <mborish_2000@...> wrote:
>
> Well, if you shorted it out somewhere deep in the circuitry, rebuilding the PSU and other boards won't make much of a difference. If you don't know how to find the fault before you start gutting the thing, you could very well damage it again as soon as you turn it on and end up right back where you started. Even worse, you could create multiple problems on top of problems. Some techs will even consider refusing to work on gear that has been heavily monkeyed by people that have good intentions.
>
> Sorry if I sound like a glass half empty guy. Honestly, I'm looking out for you. Also, It's a really bad Idea to learn electronics on a 5 figure synth with parts that are very hard to source.
>
> -Mike
>
> --- In yamahacs80@yahoogroups.com, "Ray Toler" <Ray@> wrote:
> >
> > Thanks very much, Mike and Laurie for the feedback. I know my way around
> > a workbench and am reasonably competent with a soldering station and
> > multimeter, but the bulk of my vapor inhalation time has been spent on
> > PC motherboards and smaller project kits. I know the CS is a very
> > different animal.
> > Would it be worth rebuilding the PSU, SH, TKC and TSB 1/2 boards, which
> > I consider reasonably straightforward component replacement jobs, before
> > having it serviced? I could buy all of Gavin's rebuild kits along with
> > a pretty nice new Hakko solder/desolder station for the equivalent of 18
> > hours of time at the shop I know of (about 2 hours away in Austin). I
> > certainly don't want to be penny-wise, pound-foolish about this, though.
> > I had already planned on doing those rebuilds over the next year or two
> > to replace the time-sensitive parts (caps, CMOS, etc.) and to get myself
> > comfortable with providing the care and feeding the CS requires.
> > Ultimately, I would like to be my own tech, but I'm not arrogant enough
> > to think I know everything I need to know today. =-)
> > Right now, the only reputable synth repair shop I know of is Switched On
> > in Austin. If anyone has a recommendation for techs in Houston or
> > Dallas/Ft. Worth, please let me know.
> > Thanks!
> > r.
> >
> > --- In yamahacs80@yahoogroups.com, "Laurie Curry" <laurie@> wrote:
> > >
> > >
> > > I agree.....
> > >
> > > Â
> > > -----Original Message-----
> > > From: Mike mborish_2000@
> > > To: yamahacs80@yahoogroups.com
> > > Date: 03/25/12 10:44
> > > Subject: [POSSIBLE SPAM] [yamahacs80] Re: I hope this is something
> > simple...
> > >
> > > There's a lot that can go wrong. I suggest that you find a competent
> > technician. Do not turn it on again unless you know what you are doing.
> > If you are in Chicago I can help.
> > >
> > > -Mike
> > > 312-363-7286
> > >
> > > --- In yamahacs80@yahoogroups.com, "Ray Toler" Ray@ wrote:
> > > >
> > > > Greetings all. I finally acquired a CS-80 last week and have been
> > enjoying it immensely. Today, I tackled tuning it up and that went very
> > well well. I did not raise the card rack to do the tuning.
> > > >
> > > > The next issue I wanted to tackle was some wonkyness with the
> > aftertouch. The scaling on voice 4 was way off. It would jump straight
> > to maximum volume and filter, but the modulation rate was much slower
> > than any of the other voices. I decided to try calibrating the TRG cards
> > in the hopes it was just that and not the TKC or TSB boards.
> > > >
> > > > Upon inspecting the TRG cards, I decided I probably needed access to
> > the bottom of the card rack, so I removed the screws and raised it.
> > Here's the bad part. I didn't turn the power off, thinking that since it
> > would be adjusted with the rack up, it didn't matter. Obviously a
> > mistake in hindsight.
> > > >
> > > > As I got near the locking position, the left side slipped down just
> > a bit. I think I put minor pressure on the cable bundle over the lowest
> > group of key switches with the heel of my hand, but I'm not sure. I
> > heard a couple of higher register notes sound with some "pitch bend" to
> > them, then they stopped. It was maybe 1 second of sound. I got the rack
> > up and locked with no further problems.
> > > >
> > > > But now there's no sound. The board powers up with no problem, the
> > patch select buttons all light up, I hear the same transformer hum, as
> > before but I can't get any voices to sound. I've inspected all of the
> > wire connections on the card rack and near the key switches and can't
> > find anything that looks broken or out of place. I don't know what to do
> > next and am feeling pretty sick about the whole thing.
> > > >
> > > > I'm hoping that this is something very simple (e.g., "put the card
> > rack down, you idiot") or something reasonably simple (e.g., "you fried
> > the SH board chips and welcome to solderville"). I'm going to power it
> > off for the night and see if it's just mad at me.
> > > >
> > > > I've provided additional details / symptoms below in case they'll be
> > helpful, but this may be something common. I would greatly appreciate
> > any help or suggestions you can provide!!
> > > >
> > > > Ray
> > > >
> > > > Additional Symptoms and things I've done / noticed:
> > > >
> > > > 1. I've put the rack back down and closed the lid.
> > > > 2. I've verified that all patch buttons light up correctly.
> > > > 3. With the volume at full max, and my monitors turned up reasonably
> > high, I can hear a "voice noise" / ghost tone - extremely faint and
> > probably a sine wave. I've observed the following additional things with
> > regard to that.
> > > >
> > > > ∗ The sliders and switches for voices I and II have no effect on the
> > tone.
> > > > ∗ The patch select buttons have no effect on the tone.
> > > > ∗ I can tell that the detune slider is detuning channel II
> > > > ∗ The ring modulator appears to be working on this "ghost tone" but
> > is very faint
> > > > ∗ The sub oscillator section has no effect on the tone
> > > > ∗ Changing the Feet setting works correctly on the tone.
> > > > ∗ The after touch section ∗does∗ work on the tone, but it's like
> > aftertouch is always present. Pressing a key doesn't change the
> > modulation further.
> > > > ∗ Moving the keyboard Brilliance and Level controls makes the pitch
> > of the tone go up and down (up when slider moves up, down when it moves
> > toward keys.) Each slider can change the tone individually, but the
> > range isn't as big as when moving all four together. Setting them
> > equally opposite (e.g., 2 up, 2 down) results in no pitch change.
> > > >
> > > > Thanks again for any help or pointers you can provide.
> > > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>