As a complete novice, probably out of my depth, I'm struggling to identify this component. It appears to be a fuse, there is no continuity across it when tested. Dimensions are; 7mm long, 2.5 wide (ceramic cylinder), 2.8 wide (metal caps).
The component is part of a front panel display and speaker board for an Icom IC-Z1 (Link to service manual). An old handheld radio from the 1990s. I can't get it to power up and suspect this component may be the problem.
I've included photos of the component marked 2.0 CmU, board diagram with component outlined in yellow and parts list from the tech manual. Unfortunately, the tech manual I have is a low res scan and the board diagram label is not easy to read.
Thanks for reading.