Hello everyone here! Thanks for adding me to this great community!!
I would like to make a question,
Firstly, sorry if this has already been answered here.
I am trying to restore some vintage cd players but I have problems with optical pickups (most of them are not available any more). So, I was wondering if it is possible to replace the laser diode itself, not the entire pickup. The problem is, that after diode replacement the laser beam fails to locate in the middle of the photodetector IC (also known as PDIC). This IC has (in my case) six photodiodes, named A,B,C,D,E,F. The main beam uses the four(A to D) lacated at the middle, while the side beams use the other two (E,F). How can I align properly this IC in order to pinpoint the main beam into the center?
Any help is greatly appreciated!
I am hoping that some cd gurus are still available here!
Thanks,
Kostgeor
I would like to make a question,
Firstly, sorry if this has already been answered here.
I am trying to restore some vintage cd players but I have problems with optical pickups (most of them are not available any more). So, I was wondering if it is possible to replace the laser diode itself, not the entire pickup. The problem is, that after diode replacement the laser beam fails to locate in the middle of the photodetector IC (also known as PDIC). This IC has (in my case) six photodiodes, named A,B,C,D,E,F. The main beam uses the four(A to D) lacated at the middle, while the side beams use the other two (E,F). How can I align properly this IC in order to pinpoint the main beam into the center?
Any help is greatly appreciated!
I am hoping that some cd gurus are still available here!
Thanks,
Kostgeor
Attachments
Hello, first you should read here:
https://www.diyaudio.com/community/...r-the-kss-151a-too.366374/page-4#post-7003989
https://www.diyaudio.com/community/...r-the-kss-151a-too.366374/page-4#post-7003989