MikeS
Veteran Member
They're usually sets of 3-position jumpers in a 'T' arrangement that let you connect each segment to normal, turbo, both, or off.I played around with one of my case displays and found that on both rows of pins, you set jumpers for which segments are in common for both (turbo & non-turbo) settings. Then you add jumpers to the individual row to customize the uncommon segments that need to be lit. It's a fun puzzle to work out.