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dam1941 - Next Gen Discrete R-2R Sign Magnitude 24 bit 384 Khz DAC module
dam1941 - Next Gen Discrete R-2R Sign Magnitude 24 bit 384 Khz DAC module
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Old 7th July 2019, 04:02 PM   #671
Peter Daniel is offline Peter Daniel  Canada
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dam1941 - Next Gen Discrete R-2R Sign Magnitude 24 bit 384 Khz DAC module Send a message via AIM to Peter Daniel
Yes, the volume control still works without power to display.
The on-board power trace has been cut and separate power is hooked up through toggle switch.
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Old 7th July 2019, 04:41 PM   #672
rickmcinnis is offline rickmcinnis  United States
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Thanks, Peter,

I could see with the multimeter that that trace is the +5 volts trace - and I see that is what you are switching on and off - I am amazed that the rotary controller still works.

And then I decided to look closer at the schematic and see the rotary controller is connected directly to the main board so if one just wants a volume control no need for all of the other stuff at all.

Of course I ordered the parts for the board yesterday and all I need is a rotary controller.

I do not doubt this has been said before though I missed it and thought I would post this in case someone else just wants a volume control.

Take care,

Last edited by rickmcinnis; 7th July 2019 at 04:44 PM.
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Old 22nd July 2019, 04:05 AM   #673
samsie is offline samsie  Hong Kong
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Default cut the PCB (display board) if headphone out is not needed

I want to make the Dam 1941 DAC as small as possible and I do not need the headphone control.

According to the manual, " if you donít need the headphones control section you can cut the PCB (display board) at the point where the ground layer ends".

I will lost button S4 and S6 if I cut the display board PCB at the point where the ground layer ends. Does it mean I cannot setup the remote control afterwards via using those button?

Sam
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Old 24th July 2019, 07:55 AM   #674
vwvwbg is offline vwvwbg  Taiwan
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Hi Soren!
Does crossfeed function in serial work?
I can't find status message in TX.
Click the image to open in full size.

By the way, the default output is line out.But in manual says crossfeed only valid when headphones are selected.
So, could you please add the output select function for serial.

Thanks!!
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Old 27th July 2019, 05:16 PM   #675
wushuliu is offline wushuliu  United States
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I have a stupid question. Wiring up my 1921 for unbalanced for RCA, what outputs should I use? '+' and 'GND' or '+' and '-'? I never use balanced outs so am not as familiar with interpreting the outputs. Thanks.

Last edited by wushuliu; 27th July 2019 at 05:22 PM.
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Old 27th July 2019, 07:51 PM   #676
TNT is offline TNT  Sweden
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GND & +

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Old 27th July 2019, 07:54 PM   #677
wushuliu is offline wushuliu  United States
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Quote:
Originally Posted by TNT View Post
GND & +

//
Ok, that's what I thought. Just wanted to be sure. Thanks.
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Old 2nd August 2019, 04:11 PM   #678
ggetzoff is offline ggetzoff  United States
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Has anyone tried battery power for any of these DAC boards?

Cheers,

Greg
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Old 7th August 2019, 11:12 PM   #679
wushuliu is offline wushuliu  United States
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Ok, I stupidly removed the muting ICs on my dam board. Does anyone know the part type/number so I can replace them?
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Old 8th August 2019, 12:35 PM   #680
rickmcinnis is offline rickmcinnis  United States
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Can you not place a jumper wire across the needed points?

Would have to be better than having a relay.

I did not realize there were relay ICs on the board.

Could you show where they are or is it obvious once you know they are there?
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