Roland mc-202 repair help wanted

Hi, have a problem with my mc202 that the screen works but doesn’t display correctly. Although a few taps and wiggles it does settle. Keyboard work fine as does the synth.
I’ve tested and trace each ribbon cable and although there is connectivity through the board the resistance level when testing the cables fluctuates madly.
Because of the fragility of the board. I was thinking maybe to creating a bypass connection repair rather than de soldering and replacing the ribbon with something. I don’t know what to replace them with ?
I’ve attached a link to a few pictures Mc 202 repair - Album on Imgur.

Check for a broken or lifted trace on the PCBs, especially near the board connectors for ribbon.