Brian Fox replaced a messed up Altec 175 cable with a nice new like-diameter'd mogami cable.

Neotek SII

Channel 1 won't mute when other channels solo, though LED lights dimmly.

Repaired busted wire from Solo bus to the "mute/solo/group isolate switch.

Cleaned pan pots of Channels 3 and 4 with Nu Trol 401b based on a recommendation. Both are quiet, but 4 still has a little distortion while moving on the extreme right side of the pan. When still, it's quiet. Let's see over time.

Greg wrote: Mon Feb 05, 2024 6:12 pm Apogee Symphony Mk II -

Channel 1 output putting out DC, +11v on one pin and -11v on the other. This is the fifth channel that's done this.

Replaced the output driver opamp, which, I think I noted was a bastard to do last time because of a giant thermal pad on its belly. This time I did much better. My hot air jet isn't quite enough to get the chip up to temperature on it's own, but with the chisel blade soldering iron at about 700º baking one row of pins, while blasting the body with 750-900º from the jet, I was able to free it without obliterating the board.

Still no hint on what's doing this. Static? Someone patching phantom power to it? I should see if the last few times were in winter too, when the RH is about 20% in the control room, and pretty much every time I touch a chassis after moving there's a discharge.
Checked... last time was in mid summer... :u

Again!
This time, output 12. This is the 6th output to fail like this. Super annoying.

I cut the legs first this time, which I don't think I needed to do. This led to a stressful search for a couple that flew away with the jet blast.
I used two different types of solder flux to try to help. Don't know which worked better. I need a hotter jet.

Brian is dealing with some loose patch bay sockets. Real pain in the butt. I forget what else....