Just a little post to show my most recent little PCB.   Because I work quite a lot on the internals of my beloved 600XL the keyboard flex connector has grown more and more as extremely irritating to me. Surprisingly, mine is still working find but if you have a look at it you wonder how....   The flex wears because of lots of disconnects and reconnections. Another irritating factor is that the length of the flex between the keyboard and the mother board is very short. If you just want to o