[Calku]

Do you get a voltage reading across C7?

 

[acvtre]

Yes, I get 5V, and I also accidentally touched the U2 with pin of the multitester and made some sparks. I hope I haven't burned something.

 

[Calku]

Do you get a voltage reading accross C14?

 

[acvtre]

Yes, now I get it. Almost 5V. Just give me the list of the things to check, thanks.

 

[Calku]

Let me get some measurements from mine when I get home so we can compare.  How about the voltage across C15 in the mean time?

 

[acvtre]

It's not a smd cap, right? However I got voltage con the big caps, but nothing on the wima caps. Tomorrow morning I'll resolder them.

 

[Calku]

You won't get a reading across the Wima Caps.
 
Here's what I get:
C7 = 4.99v
C14 = 3.29v
C15 = 3.29v
 
Check the resistance(always with power disconnected) from 3V3 to 0V.  It should be infinite, or no reading.  Also check the resistance between 3V3 and 5V.  It should also be infinite.

 

[acvtre]

With the dac powered on I've got:
C7 = 5,1V
C14 = 4,9V
I don't know which one is the C15, is it one of the big ones cap.
For the resistance I put a pin in the 3V3 hole and the other on the 0V wire and then the same for the 5V wire, right? If it's right, I get infinite or nothing at all, measuring the resistance.

 

[Calku]

Yes, it's one of the big caps.  Post #6 shows a layout of the board.  I'm assuming it's going to be the same as C14 though.  Which is still too high.  Should be around 3.3v.

 

[acvtre]

4,9V also on the C15

 

[Calku]

U2 is the correct part?

 

[Calku]

Voltage across the other 2 big caps(C1 and C5)?

 

[acvtre]

U2 is correct. C5 = 5V, C1 = 4,9V

 

[cobaltmute]

When you sparked U2, it appears you may have blown it.   C1 and C15 should not have 5V across them.
 
You need to try and replace U2.  You may have another problem though -  U1, U3 and X1 have now had 5V voltage applied to pins that are rated only for 3.3V. 

 

[acvtre]

Damn it. So you think I've got to replace U1, U3, X1 and U2? Where can I find them?