[Subscribe to Daily Digest] |
[Main General Bulletin Board | BBFAQ |
Prev by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Question for electronics experts Posted by MI-Roger [Email] (#882) [Profile/Gallery] (more from MI-Roger) on Fri, 3 Apr 2020 11:58:55 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I am having a recurring problem with the keypad used to open our garage door. The 'switches' fail after a few years, and at $35-$40 per pop I would rather not have to replace the entire keypad every 3-4 years.
Below is a photo of the switch mechanism.
The circuit board is printed with circular patches of interleaved copper fingers behind every button. The bottom side of each button is a black rubber pad which shorts across these fingers to make contact when the rubber buttons are depressed, At least that is my theory. The pads being black may indicate the pads have a high carbon content to be a better conductor.
Is there any way to clean and/or coat the interleaved fingers and/or black pads to achieve better electrical contact when the buttons are depressed? Glue some copper leaf onto the base of each button?
Thanks,
_______________________________________ Saabs owned: 2008 9-5 Aero Sedan, sold at 227K miles 2006 9-3SC 2.0T - Wife's daily driver 2000 Viggen Convertible - Sold May, 2022 1964 Quantum IV Formula Car - Retirement project 2000 9-5lpt Sedan, sold at 318K miles
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.