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The box may also be the servo assembly with the power supply. To what socket on the control box does it connect?

No such thing as an AC servo capstan…it’s AC hysteresis sync. The AC motor was an option on the 440C. The DC servo capstan was standard. That box I think is the servo power supply but I’m not sure.

The 38 is designed to operate vertically, horizontally, or anything in between. Your capstan flywheel is rubbing on something, and when you have it laying flat the flywheel is resting fully on its thrust bearing. There is supposed to be a spacer washer between the flywheel and the back of the...

Does it do it if you tip the machine back or forward while playing? Be careful doing this of course…heavy machine…don’t want it to get away from you. I’m a ways south of you.

It literally took me 90 seconds. I have some. 244 transport carcass…capstan motor mounting screws…same exact screws. Send me a PM, Daniel.

Ohhhh okay…the bracket is a pass-through to the motor, and the threads in the motor chassis are okay. Alright. Let me see what I can find. Worst-case scenario I have a really good local hardware store, walking distance from me, with a really good selection of metric hardware…as a fall-back.

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...