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The SC2 is a solid state dynamics processor. I understand it has a “sound” but the functionality is limited, no side-chain access, no way to use as dual-mono…I get it…it’s focused on serving as a 2-buss processor…but for less money, much more versatility, genius design and amazing results and...

I wouldn’t pay that much for that device.

Good deal. Thanks for following up, and glad you figured it out!

You mean, like, the power supply cable connectors? All the rest of the connectors internally are mini Molex type and readily available…standard pitch…and the power supply connectors parts are all still in good stock at Mouser. I honestly don’t think there’s anything component-wise you can’t find...

I don’t think there’s anything unobtanium in an M-500 series console as far as electronic components. And because the service manual with schematics and parts lists is readily available and everything is through-hole construction, and the power supply is a relatively straight-forward multirail...

Your audio power rails were down. They are back up, and so I would expect all audio systems to be functioning. I’m glad it’s working. Something happened and the fuses did their job. 🙌

No worries…I understand completely your desire to integrate the LA-40. And it would be a great companion to your 2A as far as line level equipment goes. If you have balanced line level equipment you want to interface with the 2A, the LA-40 will halontoy with that. Again, the “mkI” LA-40 is...

I read the rest of your post. Respectfully I offer this: as with some other instances in the past you are passionate about trying to find ways to use what you have, even if the idea is a mis-use of equipment. You cite good reasons for the application of a patchbay. Three words: get a patchbay...

Quick reply regarding plugging mics into the LA-40…the answer is no, full stop. Mics produce mic level nominal signals. This is much, much lower than line level. The LA-40 handles line level signals. The inputs are not microphone preamplifiers. They are line level amplifiers. If you plug a...

Also see if this helps…

Awesome info. Thanks! I have an old friend with whom I used to do some periodic music projects…he’s a great synth/keyboard player and bassist, and recordist…and technician…I reached out to him initially to see if he had any advice…he’s not a Roland guy but he certainly knows about the JUNO...

Great! Glad it’s working! Switching power on at your power distribution unit is no different than switching it on at your power supply. You can’t create a surge by turning something on. I don’t think that has anything to do with whatever caused the fuses to blow. Regarding bullet point #1...

That all sounds good. It’s not the transformer. So there is a problem with either rectification, filtration or regulation, or some combination thereof, on one or more of your regulated DC power rails, and aside from just starting to shotgun parts you really need to put a scope on it and actually...

The LA-40 is not really a patchbay. It’s a leveling amplifier (hence “LA”). It converts balanced +4dBu type signals to unbalanced -10dBv type signals and vice versa. Balanced +4dBu nominal signals connected to the 1/4” or XLR input jacks are unbalanced and level-dropped and output to the...

Let me see if I can get to my PS-520…it’s currently hooked up to my prototype Tascam console in a rack…and I’m not sure I can get clear enough access to pull the lid and do measurements on the main transformer, but if I can I can put a video up on YouTube so you can test yours and at least rule...

So, my friend, if it was me and I saw that on my meter, I’d immediately power up my oscilloscope and take a look. I can’t really put together a hypothesis regarding what’s going on there, and your meter, though it’s a perfectly fine meter for what you are doing with it…would still like to know...

What make/model of meter? Is there any way you can post a link to a video of the meter behavior when probing the +15V and +18V rails? +18V was stable when measuring for AC voltage when fuses F1 & F2 were dead right? Do you know anybody with a scope that knows how to use it?

Yeah I agree…there’s a something more if a “lost-wax” environment with traditional analog process that, while maybe being more cumbersome, may also drive a more engaged and artful approach in the moment during the process. And I like that. Not that you can’t do that in a digital environment…but...

Well, you’re asking in the analog forum, so you’re likely to find a higher contingency of folks that prefer a physical console. And that’s me. But I also value ITB benefits like low noise. And a lot of analog consoles, like vintage budget stuff with low headroom and aged components, may...