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Hey, Daniel! Are you confident the threads in the formed steel bracket are intact? I tell you what I would do…I’d dig through spares and find a replacement. That might not seem helpful to you, but I can do the same for you. Let me look and see what I have some time this weekend and follow up...

Yes I agree, completely. I guess what I was trying to highlight is I think whatever the OP is trying to do now that’s not working was working before with the same setup. I didn’t get the impression it was so much a matter of not knowing how to use the equipment, but rather a change in the...

Yeah I think the OP is stating they already tested all inputs and can’t get signal to any outputs.

I suppose that could be as well. I can’t say for sure, but it sure sounds like a possibility.

It’s not the same as the 238. It should be the same as the 424/464/644/688. I see Athan doesn’t have any of those models listed. But if you have a dial caliper and can remove the old roller and take some measurements it is likely the same as one or more of the ones listed. That’s what we...

I would: A. Make certain the head is completely clean using 91% or better isopropyl alcohol or good quality denatured alcohol, and B. Verify correct pinch roller pressure per the service manual, and C. The most likely option, replace the pinch roller. In my personal experience the pinch...

Yeah I don’t believe that’s cap leakage. It’s getting harder and harder to know how to help because I’m now completely lost as to the inventory of your troubles. I’m not clear what all is not working, and you have posts that seem to contradict each other. So I don’t really know what advice I...

Well, they look dirty…but if you’re specifically wondering about the stuff around the base of them that’s just adhesive used during manufacturing to hold them in place before soldering.

You said all other channels could pass signal to PGM 2. This is getting hard to follow again.

Yeah I guess the correct label is “M BUSS PCB”, the one that spans across the bottom of all the mixer PCBs…PGM 2 is on pin 2 of P104 there on the M BUSS PCB. But don’t discount the switch itself being a problem, or the trace from the PAN pot to the switch, or something between the switch and pin...

No. Grounds for signal are not like the ground with a DC battery. Signal grounding provides shielding. Audio signal is AC voltage. It’s not a loose screw. And 0V reference for the active devices like the opamps is handled by connectors, not screws in the M-106. Did you completely disassemble it...

So other input channels besides channel 2 are able to pass signal appropriately to PGM 2? And input channel can pass signal to all other PGM groups besides PGM 2? If I understand correctly, then it seems at least one of your problems is simply a fault of some sort between the PGM 1-2 assign...

“…pot has been soldered in backwards….” I can’t even comprehend how this is mechanically possible…they are PCB-mounted right angle pots…it only goes in one way, otherwise the pot would be upside-down, or on the wrong side of the PCB, and the pot shaft wouldn’t line up with the hole in the dress...

“Won’t output any sound….” From where? Have you tested all inputs and all outputs? It is important to be as specific as you can so your helpers have as complete an information set to work with. Are you unable to to get signal to pass from any input to any and all outputs including the AUX and...

So yeah I think it’s simply signal on channel 2 is not getting past the fader, or there’s a failure further upstream. If you want to rule out the fader an easy test would be to swap the channel 2 fader with another channel and see if the problem follows the fader swap. If it does the fader is...

So then it’s time to pull the bottom cover off and start checking where the signal stops passing. Just to confirm, you don’t get signal to pass from the channel 2 EFF send either right? Can you get signal to pass if you gently press down on the channel 2 fader knob with the fader level...

So basically you can’t hear any post-fade signal from channel 2 anywhere, anytime, correct?

Thanks for clarifying what you were talking about. So you can’t hear track 2 where when the AUX buss pre/post fade source switch is in post-fade mode?

Okay. I don’t understand what you mean by you have “Aux buss monitoring on every channel except channel 2. Which only has aux (pre fader) buss monitoring.” What is the difference between “Aux buss” and “aux (pre fader”? The AUX buss on the 388 is a pre-fader auxiliary buss. Period. So what...

I don’t believe I indicated or suggested you needed sophisticated test equipment…all I said was plug in a mic, and monitor off the ACCESS SEND jack for each mic input…SEND to home hi-fi receiver input…anything with a line level input and speakers or headphone jack. So anyway…your mic inputs are...