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Old 10th October 2019, 01:55 AM   #21
skruerselv is offline skruerselv  Denmark
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Measured without the 74CH04 = 0 V dc and ac

Last edited by skruerselv; 10th October 2019 at 01:57 AM.
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Old 10th October 2019, 02:16 AM   #22
dacen is offline dacen  Norway
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If that is the case the output is disabled by the software. You have to ask someone on this forum much more clever than me to fix that one.
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Old 10th October 2019, 02:31 AM   #23
skruerselv is offline skruerselv  Denmark
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Quote:
Originally Posted by dacen View Post
If that is the case the output is disabled by the software. You have to ask someone on this forum much more clever than me to fix that one.

Ok, but thanks
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Old 10th October 2019, 02:44 AM   #24
dacen is offline dacen  Norway
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Try to set the unit into CD mode and see if that changes anything. Could be that the signal
is disabled in other modes, so that it does not create noise that could interfere with the tuner section
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Old 10th October 2019, 02:46 AM   #25
skruerselv is offline skruerselv  Denmark
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Quote:
Originally Posted by dacen View Post
Try to set the unit into CD mode and see if that changes anything. Could be that the signal
is disabled in other modes, so that it does not create noise that could interfere with the tuner section
When i was measuring, i played a CD
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Old 10th October 2019, 02:56 AM   #26
dacen is offline dacen  Norway
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Ok, that is strange. I have never seen this in any I have worked on.
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Old 10th October 2019, 03:01 AM   #27
skruerselv is offline skruerselv  Denmark
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Is it because i not measure with an oscilloscope, and just using this ?
Click the image to open in full size.
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Old 10th October 2019, 03:10 AM   #28
skruerselv is offline skruerselv  Denmark
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I have one of these cheap ADC like this

Click the image to open in full size.

Maybe i just should connect that to these points

Click the image to open in full size.

But i dont think that the TDA1311AT sound that good :-D
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