Following on from my earlier post, I found out that a second grey round button that fits on the front panel tact switches had weakened so much the small connector end of it broke off. So I need 2 replacement buttons if anyone can help with those.
I also just wanted to WARN other users against using the following tact switch as a replacement for the original switches on the Matrix 6R.
I ordered 25 of the above switches since they look like they are exactly the same as the original switches on the front panel board. However, after desoldering all 23 original switches and then soldering in the new switches, when I tried to put the round grey buttons into the small holes on the top of the switches, it turns out this hole is too big on the new switches, so the buttons will not stay put. This means that the buttons will more than likely fall out when placed back behind the front panel display. I tried all sorts of things to get them to stay put, other than to glue them which I dont want to risk. I do have some silicone glue which might work, but I would prefer to replace with some switches which the buttons fit properly, or find a different type of button with similar specs to the original grey buttons but which fit the new alps switches.
If anyone has any ideas on this, I would be grateful for any help. Thanks in advance.