• Hi all - troubleshooting and reworking a circuit board. I have a small flat SMT component labelled FB4, that appears open. All other components labeled FB# are dead short. This component is directly in the power path. When I jump the component by using my meter in amps mode - the board works as expected. I suspect its a simple fuse, but there exist other components labelled F# (F2, F4, etc) that are more obviously fuses.

    This component has 2 leads only - no markings at all. Anyone seen this notation before (FB)?
Howdy guest!
Dear guest, you must be logged-in to participate on CrazyEngineers. We would love to have you as a member of our community. Consider creating an account or login.
Home Channels Search Login Register