FX Loop problem

[severinsteel]

Hey guys! I have a Friedman modded vintage Marshall JMP that I love, but it's been a bit of a problem child. The latest issue is the FX loop. Sometimes when I turn the amp on with the loop engaged, the volume will be cut in half and there is a loud hum. If I flick the bypass switch a few times, it will usually come back in and sound normal. This also happens while I'm playing and I have to do the same thing, or unplug and plug back in the jacks. This is frustrating, as that I can't gig with it with this problem. Do I need a new loop? Any ideas? I've already had the Send jack replaced.

 

[severinsteel]

Anyone?

 

[RACKSYSTEMS]

Could be the bypass switch is messed up.

 

[coolfeel]

I would be curious what you find out

 

[severinsteel]

I think I'm gonna just call Metro and see if they can send me a new loop. It's definitely the loop, since I get no problems when it's bypassed. I've emailed them twice and haven't gotten a response. I'll let you guys know!