12-01-2023, 04:46 PM
Thank you very much for your answer.
Re-soldering the pin was the first thing I did. From the side of the circuit board, as well as the module. I personally suspect the calibration smd capacitors connected to pin 7. The module is soldered, so I would have to pull it out using a vacuum cleaner. If I measure individual capacitors to ground on pin 7, they all show me an ESR value of around 30 ohms, which seems a lot to me.
Do you have any experience of replacing them with others, possibly with a higher value? It is true that if I pull them out, there is not much space. But it could be solved by soldering the top of the module directly to pin 7 against the ground.
Today I tested trying to connect a raspberry to the Cd player module with TDA1541A. Everything works as it should.
Thanks for the advice.
Best regards, Roman
Re-soldering the pin was the first thing I did. From the side of the circuit board, as well as the module. I personally suspect the calibration smd capacitors connected to pin 7. The module is soldered, so I would have to pull it out using a vacuum cleaner. If I measure individual capacitors to ground on pin 7, they all show me an ESR value of around 30 ohms, which seems a lot to me.
Do you have any experience of replacing them with others, possibly with a higher value? It is true that if I pull them out, there is not much space. But it could be solved by soldering the top of the module directly to pin 7 against the ground.
Today I tested trying to connect a raspberry to the Cd player module with TDA1541A. Everything works as it should.
Thanks for the advice.
Best regards, Roman
