When trying to get the gear cable out of my Shimano SL-M770A 9-speed shifters, I did something silly and took the current gear indicator hastily. I managed to snap off the white plastic part that gets pushed around by the main indexing mechanism. Having persisted for several months not knowing which gear I'm in a convenient manner, I did a dodgy repair.
I drilled a 0.7mm hole into the remaining length of the plastic column and inserted a PCB header pin. It was then cut to match the previous height.
Since it was a few months since disassembling and shelving the project before getting around to fixing it, I wasn't sure about reassembly. None of the exploded diagrams go into this level of detail. Hopefully this is the correct arrangement of internal parts. It seems to work.
I drilled a 0.7mm hole into the remaining length of the plastic column and inserted a PCB header pin. It was then cut to match the previous height.
Since it was a few months since disassembling and shelving the project before getting around to fixing it, I wasn't sure about reassembly. None of the exploded diagrams go into this level of detail. Hopefully this is the correct arrangement of internal parts. It seems to work.