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Old 29th June 2020, 02:33 AM   #341
sthcoaster is offline sthcoaster  United Kingdom
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Pushing the limits of TDA1543 NOS DAC
Been collecting parts for this DAC over a couple of years. Thanks to Covid I have time to put it together. I know from near the beginning of the thread PD’s schematic for the regulator (post#4) contains an/some errors.

I have tried to follow written descriptions to make the required corrections but can’t get my regulators to work as required.

The link to a corrected schematic here is broken. Can anyone help with this again?

Is it simply that the LMZ diode needs to be rotated 180’
Or are the positions of the 470r resistor and the diode also swapped?


Originally Posted by uncle_leon View Post
Hi Steve, here is the correct schematic:
An externally hosted image should be here but it no longer works. Please upload images instead of linking to them to prevent this.

Go over every single connection one more time, make sure there's no solder bridges or bad joints, every part is right way round etc. If in doubt, check the respective datasheets for pin-outs. You will get there eventually, just be patient and methodical

Last edited by sthcoaster; 29th June 2020 at 02:38 AM.
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Old 29th June 2020, 05:35 PM   #342
Peter Daniel is offline Peter Daniel  Canada
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Just rotate the diode.


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