Hi everybody!
I have a Crown D 75 that had been doing a great job at feeding my studio monitors. Lately though I have been noticing a bit of distortion even at moderate volume on both channels. Being in Italy and not having a local tech I decided to try to replace all the electrolytic caps and see if it helped.
I have found the manual with the schematics and felt pretty confident I could swing it. Everything went smoothly until I got to C101 and C201. Neither the installed capacitors nor the main board have any marking about polarity/orientation.
Do any of you know how to solve this puzzle?
Thank you for the advice.
I have a Crown D 75 that had been doing a great job at feeding my studio monitors. Lately though I have been noticing a bit of distortion even at moderate volume on both channels. Being in Italy and not having a local tech I decided to try to replace all the electrolytic caps and see if it helped.
I have found the manual with the schematics and felt pretty confident I could swing it. Everything went smoothly until I got to C101 and C201. Neither the installed capacitors nor the main board have any marking about polarity/orientation.
Do any of you know how to solve this puzzle?
Thank you for the advice.
The service manual is available on Crown's website here: https://www.crownaudio.com/en/product_documents/copy_of_d75_service_manual_-pdf
C101 is marked as 25µF NP (non-polarised). I guess C201 is the matching component in the other channel. The voltage rating isn't given, but 16 volt would be sufficient.
C101 is marked as 25µF NP (non-polarised). I guess C201 is the matching component in the other channel. The voltage rating isn't given, but 16 volt would be sufficient.
😀 well do I feel silly now. How did I miss that?
Thank you very much for taking the time to answer my question. Much appreciated.
Thank you very much for taking the time to answer my question. Much appreciated.