Different 6 channel usb soundcard??

[DPSS]

Hi,

The other day I received the 6 channel usb soundcards I'd bought on ebay for building the famous USB DAC and, when I took it apart, I found the board layout is different from the one shown in the forum threds here at the PL. Here are some pics:






Has anyone seen or used one of these before?

Domingo.

[mixedgas]

yeah, its the same chipset and circuit. No problem making that work, its just a little different board layout.

Steve

[mixedgas]

yeah, its the same chipset and circuit. No problem making that work, its just a little different board layout.

You'll find the signals your looking for on the chip sides of

c1
c2
c11
c12
c9
c10
c17


Steve

[DPSS]

Great!! Thank you very much for the info.

Domingo.

[drlava]

Looks like they managed to decrease the board cost a little, removed the 3.3v regualtor, and got the DC blocking caps installed in the correct orientation this time.

[DPSS]

Hi,
Can someone please specify which signal I'll be getting on each of the soundcard pins Steve pointed out?
Will it be?

c1 -> Green
c2 -> Red
c11 -> Intensity
c12 -> Blue
c9 -> Y
c10 -> X
c17 -> Ground

Thanks.

[keeperx]

measure the voltage on 1 of this channels at rest but plugged in .... is it 1.2v or 3.3 v?
got a message from a friend that this may be using the new chip so it will make a BIG difference.

you may need 50k pots

[DPSS]

I tried measuring the voltage at each of the soundcard channel's capacitors and, when I first pluged it in it measured at 2.85v and then started to rise. After about 5 minutes it's at 2.97v and seems to be still rising.
All the pots on my correction amp are 50k.

Domingo.

[keeperx]

ok then your all good...

[DPSS]

Ok, thank you.