Fanless PSU MC Pro

[Roll]

Originally Posted by klaukholm

I have a lead on a nice fanless PSU now!
Thanks Mark!

Nice,

can you share it ?

Best regards

Roland

[klaukholm]

Originally Posted by Roll

Nice,

can you share it ?

Best regards

Roland

A very nice looking 1RU fanless PSU built by Digital Audio Service in germany
The delivery is a little slow, but I hope to have it here this week


My original MC Pro psu looks like a real hackjob inside. No wonder they fail often.

Update:

the two-three week delivery time is turning out to be more like 2-3 months
That is a lot of downtime

[ErikGuldager]

Just make sure you have a newish mc. Not the oldest silver one.
We have the original model, the internal power wiring has been updated since the original release, so the German psu has to be modified to work with old mc's. Also it is not at all optimum to use with the old ones as they are very peculiar with getting the right voltage and the power harness in the old units are a bit wasteful so getting the correct voltage to all the cards is actually almost impossible...

[klaukholm]

Thanks for the info Erik,
our unit serial number is in the upper 8000 (D-87xx).
Delivered fourth quarter 2006

[ErikGuldager]

Silver or dark?
I'll try and check what serial one of our units have during the week.

[klaukholm]

Silver

[klaukholm]

The PSU is here and I had initial issues finding the right voltage. As Erik predicted, we had to make a change in the wiring.
I just finished this and fired her up and all seems to be good after a small voltage adjustment.

I would urge euphonix to supply all future units with this PSU as it is very well made and fanless.

The origninal PSU is a mess inside, not serviceable and it is reminicent of the deck of an aircraft carrier due to the fan

[blob]

Hi.
I have an Euphonix MC pro from 2008. With the first psu. Todaythe PSU crapped out, a capacitor burned. A handy electrician tried to fix it with an another one. PSU seem to work, but now the MCpro doesn't boot, it only shows milky white screen, and then nothing. I just hope it gives wrong voltage on the pins. I'm afraid that maybe the motherboard burned during a power spike?.
Any idea what could be the problem?. How did the screen looked when your PSUs crapped out?.
Now I'm in Namibia and to get the MC to the USA would be extremely expensive.
Thank you in advance

Wojtek

[klaukholm]

It is super sensitive to grounding and voltages.

the 12v should be 12.6 V

The 5v should be 5.4 V.
Start there and go up in VERY small increments to a max of 5.8


My suggestion is to call Digital Audio Service in germany and order a new and very well built PSU


In calibrating the voltage, what I found was this:
At the lowest voltage, I only got a boot screen.
As I increased the voltage I got further into the boot.
At some point I far into the boot, but it froze with stripes across the screen
finally it would get to a full boot of xp, but more voltage was still needed to launch MC software.

[blob]

Hello klaukholm
Thank you very much for your response.!
I'm a little worried that we maybe damaged the electronics inside the MCpro.
When you were working on voltages, were the symptoms I described the same (milky screen, no boot at all).
On the other side 25000 U$ piece of gear shouldn't be that fragile.