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Yes, they did their job!! Honestly, I had no idea how much weight the power supply pulls, not just electricity but channeling it into so many different voltages and the protections… Super happy that I own this mixer, it sounds amazing and I was really sad thinking I’d have to move on from it...

So far so good, no issues as of yet (hope I don’t jinx it!). I used the console from Wednesday to last night, multiple channels, multiple busses, Aux effects, etc. All seems well. I hope it stays that way for a while before needing any major repairs. Thanks again for all your help @sweetbeats, I...

I trust you and your immense knowledge of all things Tascam for sure! I have been extremely lucky with my M-520 and PS-520 as well as my MS-16. The previous owner took good care of them. He is 91 this year and I have not spoken to him in 2 years to know more about what maintenance was done over...

It will be a few weeks before I can get up to my tech (2 hours away) and it might be a little while before he can look at it. I spoke with another tech that specializes in mixers/sound systems up in branson, mo area. He is also the closest Roland warranty repair person and worked on one of my...

Thanks for the video, I did those measurements. 1-3 ohms on all the ones you spec'd. Did the plug to each, 0 continuity. Did the plugged in measurements and they came out roughly what you said, 36V blue, 51V red, 11V orange, 40V yellow.

@sweetbeats, My multimeter is Craftsman Model #82139

Thanks @sweetbeats! I have sent your comments and video to my friend who knows much more than I do and has the gear/knowledge to do what your talking about. I’ll report back when I get some answers.

plugged into pin 1 and 8, VAC on meter

It's a craftsman from sears like 30 yrs ago and probably more for car electronics. I can make a video. Yes, the AC was 0 on both +/- 15vdc adn +/- 18vdc when the fuses were dead. I have a tech 2 hours away with a scope, he mentioned that to me earlier when I reported to him my findings. He said...

Okay, new fuses are in, and rechecked voltages. *Pins 1/2 (positive probe) & 8/9 (COM probe), this should measure close to +15VDC, and 0VAC (this is the positive audio power rail) +15VDC VAC meter jumps around from 29, then 5ish, then 0 and cycles that way. *Pins 14/15 (positive probe) & 8/9...

Will do! I have the fuses on order and should arrive tomorrow or tuesday. I’ll recheck it and report. Thanks for your help!

Bingo! F1 & F2 fuses are blown!!

Thanks. I’ll check them now and report back.

Okay! I measured all according to above and all is to perfect voltage except the +15 and -15 DC voltages! (Pins 1/2 - 8/9 0 DC, 0 AC; Pins 14/15 - 8/9 0 DC, 0 AC)

Here is the pin out diagram to the mixer from the PS

And yes, we had 20-50 mph winds on Friday and a bank of storms that went from west to east later that day. Didn’t do much here but did a bunch of damage when they got to the flat lands on the east side of Arkansas and Missouri. I didn’t price any brown outs or power outages. Although we have...

No spare power supply, that’s how I got the extra console because it didn’t have one and they couldn’t test it.

Thanks for your reply! I have the manual with schematics. I have a multimeter. I reset the umbilical on both, opened up the power supply to check fuses. All were good and it looks clean and good in there. See pic. Where do I test the “rails”?

Hey, @sweetbeats, I hate to bother you with this but I really have no clue what is happening. I hope it's some stupid operator error. I've been running my M-520 for several years now, perfectly, only a few scratchy pots from time to time but never any issues with sound output. Last night I was...

Of course I realize you said "inexpensive" but I love the Zoom LiveTrak products. I've owned the L12, L20 and just recently bought the L20R rack mounted version. I use it on my synth wall to catch spur of the moment ideas in multi-track that I can then use on the computer to build tracks, if I...