Rhino wrote:This is a handy guide to opening the synth, and checking the PS voltages. It is NOT A SCHEMATIC. Ensoniq took them to their corporate grave. I have tried several times to talk Creative Labs into releasing them. Most times with frankly insulting 'talk-to-the-hand' results. I have VFX schematics. Schematics are not a service manual, either.
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Moderator Posts: 3527 Joined: Mon Jan 19, 2009 3:43 pm Location: Los Angeles, CA Real name: Unpronounceable Gear: Ensoniq SD-1/32,SQR,VFX,ESQm Virus Indigo, M3-61, MS2000BR, Volca Bass Emu XL-7, Matrix 6r TG-33, K3m, Blofeld, Micron, Mopho, BS II, JV-1080 Band: Eridani V. If you're like me, there's a good chance you're going to want to have Service Bulletin #12. This problem is one where it will fail calibration at boot sometimes or maybe all the time if it's really bad. (mine was intermittent). The story I read about this problem is that it plagued Ensoniq's engineers for a couple years almost. And it also affected more than one machine.
I've even seen a document that had handwritten notes from the engineers talking to one another about the problem. They tried swapping out practically everything before they finally figured it out. Basic gist is this the VFX-SD has an achilles heal in its design. Namely, there are three circuitboards under the keybed that are tied together. Over time, the keybed being pressed causes this area to flex where the circuitboards are. This flexing eventually causes the ribbon cable connecting two of those boards together to fail. This will usually be seen in keyboard calibration failing at boot.
But other times, it will boot just fine and even work for awhile; but as you play, the flex causes it to crash or do other weird things. It's a very common problem on VFX-SDs (and a couple other models if memory serves). If you have this problem, the good news is that the fix is pretty simple (albeit somewhat cumbersome). Edirol driver.
You simply solder new wires in place (or even in addition to) the existing ribbon cable. Anyway, this information is hard to find despite being common.
Here's a link to where you can view it. VSE Review Contributor Posts: 472 Joined: Sun Jul 02, 2006 10:33 am Location: Illinois, USA Gear: MS20, x0xb0x, JV-1080, JX-3P, JX-8P(PG800), Juno Stage, VFX-SD, VL-1, ARP Omni I, D-50, DW6000. Actually, their eventual approach to (the keyboard) repair was to solder wires as a bridge across the two main PCBs. My 'spare' VFX has the fix done already. (I got a parts machine for nothing) The problem with using old-style troubleshooting on any of the Ensoniq digital synths is it is going to require a waveform monitor that does above 8 MHz, a logic probe, and a lot of digital synth knowledge.
Also, Ensoniq used a lot of VLSI custom chips in their synths, which makes things very difficult. Moderator Posts: 3527 Joined: Mon Jan 19, 2009 3:43 pm Location: Los Angeles, CA Real name: Unpronounceable Gear: Ensoniq SD-1/32,SQR,VFX,ESQm Virus Indigo, M3-61, MS2000BR, Volca Bass Emu XL-7, Matrix 6r TG-33, K3m, Blofeld, Micron, Mopho, BS II, JV-1080 Band: Eridani V. HI Ashe37, Is there still a possibility of getting the actual Schematic for the Ensonic VFX? I'm knee-deep in troubleshooting my own VFXsd - The power supply seems to be fine, and display has heaters on but no display or even a flicker at power-up. I have decades of servicing gear under my belt (including years of surface mount/digital work professionally), but without a road map it's really a slog!
I'd love to get this up and running again for my band. Any consideration appreciated, and all documents kept confidential. MyTubeAudio wrote:HI Ashe37, Is there still a possibility of getting the actual Schematic for the Ensonic VFX?
I'm knee-deep in troubleshooting my own VFXsd - The power supply seems to be fine, and display has heaters on but no display or even a flicker at power-up. I have decades of servicing gear under my belt (including years of surface mount/digital work professionally), but without a road map it's really a slog! I'd love to get this up and running again for my band. Any consideration appreciated, and all documents kept confidential AFAIK the images of it are still on the VFX-SD yahoo group's files. Moderator Posts: 3527 Joined: Mon Jan 19, 2009 3:43 pm Location: Los Angeles, CA Real name: Unpronounceable Gear: Ensoniq SD-1/32,SQR,VFX,ESQm Virus Indigo, M3-61, MS2000BR, Volca Bass Emu XL-7, Matrix 6r TG-33, K3m, Blofeld, Micron, Mopho, BS II, JV-1080 Band: Eridani V.
Ensoniq TS-10 & TS-12 Repair Parts -Ensoniq TS-10 & TS-12 Replacement Keys & Parts - Syntaur Productions carries an extensive stock of Ensoniq repair parts. Most parts we sell are used (all electronic parts have been tested), though some parts are new. We also carry most, which are of tremendous help in diagnosing problems. Replacement Keys These plastic keys will replace broken ones on your keyboard.
Most of these replacement keys are used, but in fine condition; some are new. The TS-10 and the TS-12 use different types of keys, so you will need to make sure you order the correct style (click on the link for your keyboard below).
With the exception of the top note, all keys from octave to octave are identical, and all black keys within a given style are identical. In other words, a B note in the lowest octave uses the same key as a B note in any other octave. But the highest C note of a 61-note keyboard is different from the other C notes (see illustration below).
Ts 10
If you do not know the note names, on the 61-note keyboard shown below (as on the TS-10), the white keys from the bottom (left side) up are: C, D, E, F, G, A, B, and then the sequence repeats. On the 76-note TS-12, the bottom note is an E and the top note is a G. Click below to view keys for: Parts We stock both new and used parts; the individual item descriptions will specify whether a part is NEW or USED. All used electronic parts are tested and guaranteed working. This listing reflects our current inventory and is updated daily, so if a part is shown with a 'Buy' button, we should have it in stock. If a part is shown as Out of Stock, then we do not have it, and in most cases, we don't know when or even if we might have it again. Your best bet is to simply check back on our site occasionally.
Ensoniq Ts 10
If a part is not listed on our site, then we do not carry that part. We can no longer research or special order parts that are not listed here, and we just don't have time to answer questions about parts that we don't carry. We want to help you get the parts you need, but please do not ask us to help diagnose problems with your equipment. We simply don't have the resources to do this, and it is just not practical to diagnose repair issues without being able to test the equipment in person.
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