think my 104z is sick...

[BHC303]

So the last couple of times I have used my 104z it dose not self oscillate as easy as it use to (normally at 8 it would go no probs at all) and I find I need the volume all the way up?

delays fade out with a nice hot signal and set to 9 to 10?

Any ideas?

cheers

[EricK]

Yeah, you need to send it to Moog. They will probably replace a resistor in the output, and ask them if they can analyze the jumper pin and see if they will file it. Others have talked of inserting something to isolate those jumper pins like a card or cardboard or something. Document the date and time and what exactly you did (like powered for long periods of time or did you engage the stomp switch).

I dug up the report on the pedal's issues from Dale: "the pedal has two mechanical issues that I can see. Those pins you mention are indeed pushing up against the chassis. There is a connector on the stomp switch that's pushing against the bottom plate. When pushing on the bottom plate, this pushes the motherboard up and those pins get pushed up against the chassis. The whole unit will have to be disassembled. there just isn't enough clearance in there to do it any other way."

The problem is not that the pins touch the chassis when you look at them, but when it actually operates . . . the whole thing is too flexible so metal parts make contact when you stomp, tweak, etc. and mess up the current flow, or whatever.

Therein lies the rub.

[BHC303]

Yeah, you need to send it to Moog. They will probably replace a resistor in the output, and ask them if they can analyze the jumper pin and see if they will file it. Others have talked of inserting something to isolate those jumper pins like a card or cardboard or something. Document the date and time and what exactly you did (like powered for long periods of time or did you engage the stomp switch).

I dug up the report on the pedal's issues from Dale: "the pedal has two mechanical issues that I can see. Those pins you mention are indeed pushing up against the chassis. There is a connector on the stomp switch that's pushing against the bottom plate. When pushing on the bottom plate, this pushes the motherboard up and those pins get pushed up against the chassis. The whole unit will have to be disassembled. there just isn't enough clearance in there to do it any other way."

The problem is not that the pins touch the chassis when you look at them, but when it actually operates . . . the whole thing is too flexible so metal parts make contact when you stomp, tweak, etc. and mess up the current flow, or whatever.

Therein lies the rub.

Thanks for your reply EricK, looks like I will have to send her home...

Cheers mate

[BHC303]

working again

[EricK]

By itself or did you send it in?

[BHC303]

By itself... I think I will open up the bottom to see if the pins are touching the chassis.

Beauty of analog I suppose, some times analog gear bugs out and pisses you off or some times they bug out and sound amazing... thought I would give it another crack today and it worked...

How hot do you run yours? I find I still need the volume up a fair bit, but this is how I have always used it (bought it second hand) my 108m usually has volume up maybe 1/2 or so give or take.

I have it at the end of the chain...

Cheers Erick

[EricK]

working again

For Now.

I run mine at different volumes depending on the audio source. I think most of the time the audio output is full. It generally always runs to a mixer. No amps here, so it's either headphones or to the computer. It also depends on what else I'm running to the mixer at that time. The mixer gain/volume/master/headphone out are all set at normal levels.

Be sure and document your problems and notify Moog about your issue while it is well into the warranty stage. Document how long it was powered up, what you did to trigger the failure and any event in which it returned to normal operating condition.

[bradley103082]

Hello all. One of my 104zs stopped working tonight. No feedback/self-oscillation. Took off the bottom plate and it worked again. I cut a piece of a file folder to fit from wood side to wood side and cover the bottom of the stomp switch and everything down in that area of the pedal. Put the bottom back on and now it works again. Maybe better than before.

[BHC303]

I think I should do this also, cheers

[redeyeflight]

I had this exact same problem with my 104z...just finished putting cardboard in between the mother and daughter board and it completely solved it!! Anyone else experiencing similar conditions should give this a shot.

[alexv]

Hello all. One of my 104zs stopped working tonight. No feedback/self-oscillation. Took off the bottom plate and it worked again. I cut a piece of a file folder to fit from wood side to wood side and cover the bottom of the stomp switch and everything down in that area of the pedal. Put the bottom back on and now it works again. Maybe better than before.

I used some electrical tape on an early serial # version that I used to have... but it was just preventive... the later serial # version still has the same problem and the jumper pins are cut way short so I don't think they're touching the chassis. I think it needs the resistor mod, but I'm waiting on a 104M anyway.

[alexv]

I had this exact same problem with my 104z...just finished putting cardboard in between the mother and daughter board and it completely solved it!! Anyone else experiencing similar conditions should give this a shot.

Hmm, can you elaborate on that or post some pics?

[redeyeflight]

There's a smaller board under the main board by the footswitch...if you stick some cardboard between that and the main board and then some cardboard to cover up the main board from the back plate it should do the trick...worked great for me anyways, hope that helps!

[EricK]

Mine acted up again the other day. Quit delaying.....very low output. I left everything running while I checked some other stuff and without provocation and without being touched....it reared back to life.

Im going to take the cheek off and figure out what to stick in there when i get a chance.

[BHC303]

Mine acted up again the other day. Quit delaying.....very low output. I left everything running while I checked some other stuff and without provocation and without being touched....it reared back to life.

Im going to take the cheek off and figure out what to stick in there when i get a chance.

Please post a pick if you get the chance mate I am not super confidant jamming bits of gear in the Z, I would like to see how you do it.