388, one channel send not working

[7upPartridge]

Couldn't find this question elsewhere, anyone experienced anything similar? Just recently my aux on ch6 has an extremely low send level, probably around 10% of other channels. Same issue pre/post. I've got tapes with vocals on that channel, it's killin me! ugh!

Any ideas? Guessing it's probably some kinda pcb thing?

Thanks!

 

[sweetbeats]

•Tip the unit on its side and have a buddy stabilize the unit
•Remove the bottom panel to access the underside of the mixer cards
•There is a PCB that runs along the bottom of all the channel cards...it carries all the signal bussing
•Gently exercise the connector of that PCB to the channel 6 card while monitoring the aux level and see if you can get any better results.
•if dickering with the buss PCB effects the aux level but the issue doesn't permanently resolve with the exercise I'd suspect a bad solder joint on the buss PCB or on the connector on the channel card.

That's where I'd start.