Troubleshooting
Initial checks for opens and shorts on assembled boards
Quickly separating opens from shorts reduces repair cost and downtime. This guide covers practical first checks on assembled boards.
Initial visual inspection
Stains, solder bridges, or damaged pads often reveal the fault location.
- Microscope review
- Compare with reference board
- Mark suspicious areas
Basic electrical checks
Resistance between a suspect node and ground narrows the fault type.
- Power rail short test
- Open trace on signal lines
- Record results for repair
Repair preparation
A clear report helps specialist repair reduce turnaround time.
- Fault location photos
- Board and BOM revision
- List of replaced parts