I had a DX7 with E! installed. I struggled to keep the E! card from getting corrupted for a long time until I finally just reverted back to a regular DX7. I did figure out a good procedure for restoring the E! memory after it gets wiped: 1) go to memory menu and turn memory protect off for both inte...

I just built a PG-800 clone for Roland JX-8P, JX-10P, and MKS-70 synthesizers. You can check out some pics here. This gallery contains pics of a unit installed into a JX10, as well as pics of the external unit. The dimensions are 4.5" x 7" x 1.5" for the external unit. The firmware is based on http:...

Have you put a scope on the power lines? I would definitely check those before doing what you mentioned. To me, this looks like the synth is having trouble achieving a stable 5V, so the unit is going in and out of RESET.
-Rob
www.newenglandanalog.com

I would check the voltages on the CPU section of the main board. Did you disconnect any of the multiconductor cables from the headers when you swapped out the battery? This sounds like +5V is not getting to everything on the CPU board, or one of your connectors is not making a good connection. If I ...

We recently developed a kit to modularize the ARP Avatar. The kit brings the following functions to panel mounted 1/8th" jacks: Patch Panel Connections: VCO1 CV In VCO1 CV In with series glide circuit VCO1 Pulse Width Modulation CV VCO1 Sawtooth Output VCO1 Pulse Output VCO2 CV In VCO2 CV In with se...

The early white Odysseys did not have CV, gate, and trig I/O's. This started at the tail end of the black and gold Rev 2 Odyssey era. That is when these jacks became standard. No Odysseys were manufactured with modular patch points. This was a mod that was and is frequently done to make the Odyssey ...

By the way, if you need someone to fix it and don't mind shipping the unit, we can do it. PM me if you need it serviced.
-Rob
www.NewEnglandAnalog.com

We work on Juno-106 synths all the time. If you can't fix it, give us a call. We have wave cards and vcf/vca cards if they are needed. I am wondering, have you had the epoxy coating peeled from all of the voice cards? This should be done, as not doing it will result in eventual failure in all. "dead...

If these are just standard 7-pin DINs, we can make you a custom one. Custom cables are $50 each. They can come in any length you want up to 8 feet. If interested, please contact us. Thanks!
-Rob C
www.NewEnglandAnalog.com
(207)-703-2350

We have done this kind of work on almost all of the sequential stuff. Usually the best thing to do is to just replace all of the components such as the rectifiers, regulators, caps, etc. For older PSUs that use transistors (ones that predate the days of modern regulators) we usually just use a repla...

I agree with garranimal. I repair synths for a living and I have seen a lot of bad things happen from novices taking on power supply issues. (I don't know what your level of knowledge and skill is.) If your meter is on DC volts, you will get a reading like 6v on all of the transformer windings. I ve...

It sounds like the jack is normally held at 0V when no cable is plugged in, which is pretty typical. I bet there is a bad connection to that jack. Check the solder pad where it terminates with the jack board. If there is a pin floating in that jack, it would probably cause that kind of craziness. -R...

Ahhh, I missed that. Still, he just needs some program that will do midi mapping. That's all that MIDI Ox was to be used for.
-Rob

You need to map CC messages to sysex using midi OX. I have had to do this with a lot of my old analogs such as the Roland JX series. Basically, you must look in the back of the SCI instruction manual to see what type of midi message the unit wants to receive. Chances are it is a type of message that...

We're ok with international bidders, but the shipping would make it not worth it. It would cost you less for us to send you a Pyxis and you or someone else install the sensor.