Just curious though; if I'm already using the SE outputs on the IVY board to drive a pair of speakers, would I still tap into the SE output for the headphone jack? Would this affect the output to the speakers, since the signal is being shared between two sources?
It will, but it will be a month or two before more are available. I am working on shrinking that time frame, however.
I am finishing one of these now. I need to have an LED indicating power on. I have used both a Placid and Placid BP for power supplies. Can I just tap in to the test points on the Placid for the led? That should not hurt anything right? I know it's a dumb question but I had to ask before I mess something up.
Yes that's a possibility, but do use a resistor in series to limit the current. You can also use the lock LED, but when there is no lock (sources are off) it will not indicate that the DAC is powered.
EDIT: and make sure that the shunted current is still around 50 mA when you power the LED directly from the Placid.
EDIT: and make sure that the shunted current is still around 50 mA when you power the LED directly from the Placid.
Just use a resistor from the Placid output. Typically (depending on LED), shoot for 12-15mA, so
R = .012/[Your output voltage]
As Corpius pointed out, readjust the shunt current when you are done.
That was the first thing I checked. It's not the LED's themselves it's that I have no voltage going to them. I switched to each input and none of them have power going to the LED's. I did check that there was voltage getting to the selector switch and there is 3.4v from pin 4 to ground and none anywhere else on the board. Has anyone else had this problem or is it just me?
I found the problem, loose connection on one end of the ribbon cable to the switch, and it is fixed now. I just needed to not look at it for a day and go back with fresh eyes.
Now that the leds do light up they are very dim. Almost unnoticeable really. I will change the resistor and see what happens tonight.
If I have any more problems I will start a thread in the support forum Russ. I did not think of that when I originally asked the question.
Now that the leds do light up they are very dim. Almost unnoticeable really. I will change the resistor and see what happens tonight.
If I have any more problems I will start a thread in the support forum Russ. I did not think of that when I originally asked the question.
necplusultra , please utilize our support forum.
Hi Russ,
don't know what happened to my post here but I appropriately posted my issue on the tp support forum under the buffalo thread.
Hoping to get feedback
kind regards.
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