Moon M569 sequencer glitches?

[brotherloco]

Hey guys. I've spent a couple of nights playing with my brand new 569 sequencer and have noticed a lot of strange glitches. I guess I'd like to know from those of you who have one if you've experienced the same or similar things.

In brief here's what's been going on:
- Odd reset points. Even though I don't have the reset switches thrown or a reset CV input, the sequencer all of a sudden starts reseting on a random step.
- A single step firing at the same time as all the other steps. For example, in 2x16 mode, step 16 fired on every step (1 through 15)
- Voltages routed to the wrong outputs. For example in 2x16 mode, the first 16 step voltages were coming out of output 4.

I haven't figured out a consistent way to get rid of the glitches, but twisting a few dials (particularly the mode) and sometimes a power cycle does the trick.

Thanks for any help, and hope you're having a great modular weekend!

[phaedra]

I've also a brand new M569 and mine is working as perfect as I expected. Your mentioned details seem to relate to some bugs or to a part with a defect in your sequencer. Don't hesitate to use your warranty.
It is a very fine module.

[VinceL]

Hey guys. I've spent a couple of nights playing with my brand new 569 sequencer and have noticed a lot of strange glitches. I guess I'd like to know from those of you who have one if you've experienced the same or similar things.

I have owned a 569 since last August, and I have never experienced the types of problems that you have mentioned.

As I recall, there are a few ribbon cables between the PCB's. I would suggest checking that they are all plugged in securely. Vibration from shipment could have caused a connector to loosen.

I don't know what type of power supply you are using, but if you can swap the power connection going to the 569 with another module, you might find that the power connector is either not seated properly or one of the wires is not secure in the connector.

If these things don't solve the problem, then definitely use your warranty. I'm not sure where you are located. If you are in the US and bought it from Noisebug, I'm sure they will take care of the problem for you.

[brotherloco]

Thanks for the responses guys. Definitely sounds like this is unusual behavior.

The real consistent glitch so far has been the reset issue. In 1x32 mode, I was getting resets at random steps that would repeat a few times and then move elsewhere.

I've been testing with both internal and external clocking and that hasn't made a difference.

Thanks for the suggestions Vince. I'm using a dotcom QPS1 power supply in a portable cabinet that is only powering 12 modules. There are lots of spare power leads that I can swap in. I'm going to check on the ribbon cable connections too, and I'll report back.

And yeah, bought it from Noisebug, so I'll contact them next if the problems persist.

[JohnLRice]

FWIW I currently have a somewhat older motherboard in my 569 (but as soon as I can "unearth" my workbench I'll put the new one in! ) so once I do, I'll need to do more testing.

That said:

- Odd reset points
I might have encountered this once or twice. But, I wasn't sure if I just had a switch flipped unintentionally or something.

- A single step firing at the same time as all the other steps.
I haven't had this happen with my Moon 569 that I've noticed but I have noticed it with my Synthesizers.com Q960.

- Voltages routed to the wrong outputs.
The only repeatable problem I have noticed is that in the 2x16 modes, if I stop a sequence while it's anywhere on the second row and then hit the reset button, the LED for position one row one will light up but the voltage coming out is coming from the row and step the sequence was stopped on.

[brotherloco]

Well, I did my best to seat all the ribbon cable connectors and make sure they were tight. Swapped out the power cable lead and made sure it was seated tight as well, and the problems persist.

I ran the sequencer in 1x32 mode for a long time and actually noticed a pattern to the random resets. It would run all the way through, then reset on row 3, then reset on row 4, and then repeat. At the very least it indicates something like a software problem rather than a electrical short circuit. Although I'm completely unqualified to know that for sure...

Thanks for your response John. So far I haven't seen another instance of the multiple stage firing or the mis-routed voltages. Maybe they're all related to the same internal problem though, not sure.

I shot a short video of the 1x32 reset problem in anticipation of showing to Moon if need be. If I end up uploading it, I'll post it here too.

[brotherloco]

Just for the posterity of this thread...

I've exchanged a few emails with Gert and he has an idea of what's wrong. He says the sequencer is behaving as if it had a 569ES Input Expander connected to it, but since it doesn't, I'm getting random glitches.

He's made an adaptor for me to plug into the expander port, which will hopefully solve the problem. It's currently in the mail, but once I receive it I'll make another post on whether it works or not.

And for the record, both Chuck at Noisebug and Gert at Moon have been very responsive to my emails. Awesome customer service.

[brotherloco]

OK, last post from me on this thread. The adaptor arrived from Germany. Plugged it in and the reset problem went away. A quick and easy fix.

[The Hamburglar]

NOICE.