0
\$\begingroup\$

I'm trying to repair an old stereo and I'm fairly sure I blew one of the components. I've never seen one of these before, and after research here and there I can't identify what it is - it's this cap looking silver thing in the center of the pictures:

enter image description here

enter image description here

So it's not a cap, it has 75000 written on the side of it and Y101 on the board, if that's any help.

\$\endgroup\$
5
  • 1
    \$\begingroup\$ Guessing: oscillator crystal. Can't read the markings. Does the "stereo" feature a clock? \$\endgroup\$
    – greybeard
    Commented Apr 22, 2023 at 9:22
  • \$\begingroup\$ As I suspected, it took a split second to any trained paid of eyes. Thanks a lot to all of you :-) \$\endgroup\$
    – Philippe
    Commented Apr 22, 2023 at 10:52
  • \$\begingroup\$ @greybeard yes it does :-) \$\endgroup\$
    – Philippe
    Commented Apr 22, 2023 at 10:55
  • \$\begingroup\$ A crystal is unlikely to show visible evidence of failure. Why do you believe that it has failed? \$\endgroup\$
    – Mattman944
    Commented Apr 22, 2023 at 15:45
  • \$\begingroup\$ @Mattman944 because I applied too much voltage on the wrong pin (8v), the board drawn about 3 amps for a few seconds then smoke escaped from it, or at least I assumed it was from there. \$\endgroup\$
    – Philippe
    Commented Apr 22, 2023 at 16:34

3 Answers 3

4
\$\begingroup\$

It is most probably a 75kHz crystal, check if it is connected to pins 78 and 79 of Valence AP702 controller.

enter image description here

\$\endgroup\$
1
  • \$\begingroup\$ You are very correct sir, after having a look at the datasheet's schematics, this is precisely what is connects to. And I've also learned now how to figure this out by myself next time, many thanks! \$\endgroup\$
    – Philippe
    Commented Apr 22, 2023 at 11:11
2
\$\begingroup\$

It is a tuning fork style crystal resonator in a cylindrical can. The designator Y101 indicates that as well.

Something like this.

\$\endgroup\$
1
\$\begingroup\$

It looks like a crystal to me.

From wikipedia: enter image description here
https://en.wikipedia.org/wiki/Crystal_oscillator#/media/File:Crystal_Packages.jpg

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.