Effect Loop Troubles

[Magnetico]

Hi. I've got a trouble with my Lonestar Head V.2.
When the effect loop is engaged, with no effect inserted, the volume suddenly goes down and I can't hear anything.
It happens specially at low volumes and betwen a note and other, when the volume goes down after the attack.
Any idea of the reason of this troouble?

Emanuele

 

[plan-x]

Did this just start happening recently? Or did you aquire it this way? The tube V3 may be the culprit.

 

[Magnetico]

Did this just start happening recently? Or did you aquire it this way? The tube V3 may be the culprit.

It started after few time I owned it brand new, but not from the beginning.
I used the amp only 3 time on stage and about 20 times at home.

 

[jaquetapus]

Try jumping the effects send to the return with just a cable. I know on the older Boogies the contacts in the return switch inside the jack can get messed up, causing the problem you're describing.

-dave

 

[shogun]

sounds like corrosion on the send / receive jacks.. plug in a short cable

 

[fishyfishfish]

Take out the chassis and gently bend the tip of the input jack in so it is tighter against the 1/4" male end. Mine did the same thing.

 

[ziehmrd]

Magnetico, did you ever find the solution to this problem?

 

[Magnetico]

Magnetico, did you ever find the solution to this problem?

I didn't find a solution.
I gave the amp head to my tech for two times and he said it was ok!

Now I bought a EHX Caliber 22 pedal head and I used it with the Lonestar 2x12 cab.
I found that the same matter occurred: so the problem is the cabinet.
It's strange, because when I used the cab with the Lonestar head, if I bypassed the effect loop, it worked.
I checked all the cab contacts and they looked ok.
I should take the cabinet to the tech.
I think my rig is not under warranty anymore: I hope it's not a speaker ...