Effect switching issue

[BKPoe]

Here is a strange one. I built an Arum (Golden Pearl) a few years ago and had it on my board for a ling time. It was in a loop switcher, so it was always on. One day it went in and out a few times and then quit.

I pulled it out to troubleshoot the other day and when bypassed, I have signal going through, but when I hit the switch, I get nothing. I put a 1K tone on the input and started tracing the signal and had the tone in several places so I thought I'd start at the end and work back. I have the tone on the output jack and the POTs affect the tone. So I know the effect is working, but when I plug the guitar back in, there is no signal when the effect is switched in.

Any thoughts?

 

[jimilee]

Here is a strange one. I built an Arum (Golden Pearl) a few years ago and had it on my board for a ling time. It was in a loop switcher, so it was always on. One day it went in and out a few times and then quit.

I pulled it out to troubleshoot the other day and when bypassed, I have signal going through, but when I hit the switch, I get nothing. I put a 1K tone on the input and started tracing the signal and had the tone in several places so I thought I'd start at the end and work back. I have the tone on the output jack and the POTs affect the tone. So I know the effect is working, but when I plug the guitar back in, there is no signal when the effect is switched in.

Any thoughts?

Footswitch maybe?

 

[BKPoe]

Footswitch maybe?

Thought about that, but would the switch still pass the tone if it's not working correctly?

 

[jimilee]

Thought about that, but would the switch still pass the tone if it's not working correctly?

Yes, there are multiple parts to the switch. In one position the top 2 rows are connected, in the other the bottom two rows. Reflow the switch or make an audio probe to check it out.

 

[Feral Feline]

I can attest to stuff laying fallow eventually not working, even though you might assume since it's not used (in this case always on with your loop-switcher handling turning it "off/on") that it isn't suffering any wear & tear.

I had solderless patch-cables go bad on my at-home board, which rarely moved, occasionally slid it under a sofa-bed when guests visited.

So perhaps your switch in the pedal-in-question has succumbed to some rusty contact points or what I don't know, but...

From your description, sounds like a physical problem — I'd check the input jack, I've had problems with cheap jacks, too.