CX-22 Trackball Button Switch Repairs

[Sean Bruno]

I've come into possession of a super clean CX-22 that has failed fire button circuit boards underneath the buttons.  I just did continuity tests on them and they both fail.  Does anyone have a line on replacement or repair processes for these little guys (CO20561-1)?

Edited May 12, 2022 by Sean Bruno
Adding photos of part.

[+-^CrossBow^-]

I assume the dome switches are held in place with mylar tape? So could try cutting that out to make sure there isn't some corrosion on the contact pads that the switch domes touch. And in looking at that... is it the same as what was used on the 7800 side fire buttons on the original CX-24 painline controllers?

 

[TheDevil'sCompass]

This PCB might be a good recreation candidate for PCBWay, JLCPCB, or similar PCB manufacturer. Alternatively, if you're handy with a soldering iron you might be able to jumper the damaged area with some thin wire. As a last resort, you might be able to cut out replacements for the entire trace on each side using Foil Duct Tape available at hardware stores. 

[+fdr4prez]

You can reach out to Best Electronics. 

 

It is my understanding that these are the same as what is used in the 7800 controller. 

 

If only @Osgeld would make some replacement boards like what he's done for the CX40

 

[TheDevil'sCompass]

Best Electronics:

Joysticks (best-electronics-ca.com)

 

[Sean Bruno]

I was able to remove the tape and clean the entire PCB with IPA.  After replacing with fresh tape and reconnecting, it sprang back into life.  We had a Missile Command tournament via my 800xl and it was glorious.