Thanks for taking the time to reply. I think I know what you mean. Attached is the image you requested. CheerS.guess 3 & 4 are just to pin the button to the board ... but you could test the the broken button with a beeper ... ?! ... the one with the switching-function are yours.
... btw. sincs your box is open : ) ... can you post a photo from the whole board ? ... just another issue to consider. Thanks.
The two hole are testing point for test the button when is in place.[...] I saw that between the 4 pins there are two small holes [...]