D&M drive problem

BeardyAndy

Ive got a D&M drive and the “Mick” side pops when you turn it on/off, I’m not the first owner so no chance of warrantee. I know this can be a common fault with some pedals but is it an easy fix?

Musicman20

Tell them on YouTube and I bet they repair it. 

rossyamaha

I’ve had this on other pedals before. I was told it’s a static build up. Click the switch a bunch of times and it should be fine. 

Disclaimer : This information could be utter bollocks due to me being an idiot but it might be true. But could be bollocks. 

JMP220478

try a small amount of DeOxit or other switch cleaner .. again not a guaranteed fix but might help ... 

EricTheWeary

There’s a Steve Morse rig rundown when one of his pedals does an almighty pop ‘ that’s the sound of true bypass’ says Steve  

http://www.muzique.com/lab/pop.htm

That article is pretty comprehensive. Although it is probably what @rossyamaha says or the voltage issue ( a sudden change in voltage heard through the audio in which case you probably need a better power supply). 

It can also be simply where you position the pedal, if you have your pedals in front of the cab it can be microphonic and moving the pedal out of the way will fix it. 

Keeley are very active on social media so if no joy maybe try their Facebook page. 

Gulliver

BeardyAndy said:

Ive got a D&M drive and the “Mick” side pops when you turn it on/off, I’m not the first owner so no chance of warrantee. I know this can be a common fault with some pedals but is it an easy fix?

If you don't manage to get anywhere with messaging TPS or Keeley - hit me up as the original owner and i'll see if I get anywhere.

BeardyAndy

@Gulliver i will do, thanks.

A little update.. If I flick the toggle to Drive into Boost it only does it on the drive side but if I swap it Boost into Drive then both switches pop.

Gulliver

BeardyAndy said:

@Gulliver i will do, thanks.

A little update.. If I flick the toggle to Drive into Boost it only does it on the drive side but if I swap it Boost into Drive then both switches pop.

To be honest - I didn't play it enough to notice any issues!

BeardyAndy

I think its come on recently, didn’t notice it at first. Unless it’s since moving from digital to a valve amp?

steamabacus

BeardyAndy said:

@Gulliver i will do, thanks.

A little update.. If I flick the toggle to Drive into Boost it only does it on the drive side but if I swap it Boost into Drive then both switches pop.

One of the techie types should be along to explain more but if it doesn't consistently pop on the same switch it suggests it's not a switch issue.

There is a thing with true bypass pedals where a dc leak from the amp input (can be a dodgy valve I think) can cause the mechanical TB switch to pop as it 'charges up' the static charge (? a techy can explain better) in the switch due to the leak.

lasermonkey

There's no reason why a TB switch should pop. All you need is a pulldown resistor (usually 10K-100K) from the board output to ground and it prevents any charge from building up. Sometimes a 1M-2M resistor between board input (or input jack signal) and ground is needed (say, in a TB looper) , but I don't think I've ever built a TB pedal where the pop couldn't be fixed.

BeardyAndy

Further update...

Took it off the board power supply and used a single 9v switching adapter, still does it. Also plugged it into my Katana to see if it was the valve amp and still does it.

Think I’ll message Mr Keeley and Co.

BeardyAndy

Have spoken to the good people at Keeley and they have said to return it and they will repair foc (plus postage) so hopefully it'll be back soon, I'm surprised as i came clean about being the 2nd owner but they said as it's less than a year old they'll help me out. 

Gulliver

BeardyAndy said:

Have spoken to the good people at Keeley and they have said to return it and they will repair foc (plus postage) so hopefully it'll be back soon, I'm surprised as i came clean about being the 2nd owner but they said as it's less than a year old they'll help me out. 

Glad they're helping out!