Tech 21 XXL Bass Problem

[Jibudo]

Recentley my loved xxl bass pedal developed a strange problem.

When i turn it on, it slowly brings the volume up, like a fade in and, the more time i leave it off, when i bring it in, more slowly the volume comes up (if i constantly turn it on and off, this fade in is inexistent).

I tried diferent power supplys in diferent places with diferent amps, with diferent cables and diferent instruments.

The pedal is in warranty period and i have taked it to the store, and there it just worked fine

What is worng with my pedal?
Have anyone of you had the same issues?

 

[Jimbob Jones]

First thing to do is to try it with a battery.

It sounds like it might be a cap or transistor going bad; in which case you should return it, unless you're handy with a multimeter and soldering iron.

 

[Jibudo]

Looks like this problem only happens when the XXL is placed before my ebs multicomp, even if the comp is on or off. I will be doing more testing to figure out what the problem is. (The multicomp is working fine, no problems found)

EDIT: It's not the cable between the pedals

 

[Jimbob Jones]

Weird...try subbing the multicomp for another pedal (leave everything else the same) and see if the problem still happens.

This is definitely a strange one!

 

[Jibudo]

Well, the problem is there even when there are no effects on the path, but when i place some pedal after ( i tries with the comp and tuner ), the fade in becomes really worse.
It´s like the pedal was warmig up, and when i place some pedal after it, it takes much more time to warm up.

I Think i'm going to the store again and hope to show them this.