I've changed out many pull chain switches but now live in japan.instead of wires this switch appears to be connected to a circuit board.any experience would be helpful.

The only thing I can think of that would have a circuit board would be LED.

What exactly are you asking?

It's a fluorescent.I'm trying to replace it but have no idea how to remove the old one.I have pictures but don't know how to post them on here.

How do I add pictures and other file types to my post?

A. "Attach" files (including pictures) from your computer. This method puts the attached file below the text of the post.

Click on an Ask or Answer button to ask or answer a question
Compose your question or answer in the window.
Under the window where you composed your question or answer is a section called Additional Options.
Click on the Manage Attachments button: a pop-up dialog will open. NOTE: The Manage Attachments dialog lists the maximum sizes of the various types of files that may be attached.
Click the Browse button to navigate to the image on your computer and double click the file on your computer: this will return you to the dialog window.
Click the Upload button.
Click the link to close the dialog window OR repeat numbers 5 & 6 to attach another image.

I only have use of a phone and see no option for this.