This is something I never wasted any time on. If the settings were not available to me I wouldn't try to guess and waste lots of time hoping to get lucky. The display has very little or even no worthwhile meaning in most cases.
The diagrams at [here] show that the makers of these LED units were very consistent in their implementation; a jumper for each segment, of four possible settings. Once you see the pattern, you may be able to figure out the specific settings for your unit.
But, based on the diagrams that I pointed to, and on the SK-188 photo that you provided, I deduce that the SK-188 settings are per the diagram at [here]. Is the diagram correct?
Not a problem at all.Also, does anyone know if you can safely fiddle with the jumpers when the system is powered on?
So, per [here] ? (You may need to refresh the image in your browser.)Modem7, there are 2 changes that are required for the diagram you posted. the green jumpers all buy themselves need to be moved to start of bottom row and then the jumpers in the position of the green ones need to be turned into the hundreds. Mind you I haven't tried moving the jumpers yet, but, for the current numbers displayed it all seems to match up.
Not a problem at all.
So, per [here] ? (You may need to refresh the image in your browser.)
BTW. That is what I originally thought, but I then counted 16 solder joints for the segment module, which is the norm for two 7-segment units.
Thanks. Good to get confirmation.I sorted the jumpers out today and can confirm everything worked perfect.