POLAR GRS 200 PCB Fault Locator | Software


Typical production and manufacturing departments have a small percentage of PCBs that require fault location to component level after assembly. Whether your volume is high or low, the GRS200 PCB Fault Locator software can help you locate these faults rapidly and cost effectively.

CAD Viewer

GRS200 imports CAD Data in more than 20 popular formats, including GenCAD, Hyperlynx, IPC-2581, ODB++ and displays the PCB layout for faultfinding purposes. Faulty nets can be selected with a mouse click and highlighted in red or blue. Query net information on each faulty net and display connected components.


The nodal impedance test is made on unpowered PCBs, by applying a current limited sinewave voltage, producing a graph of voltage against current for the node. The GRS200 will compare the nodal response of a defective PCB with that of a known good PCB previously learned and stored. It will automatically identify signatures that exceed a defined tolerance and identify components that are suspect.

Test Programs

All nets contained in the CAD data will be allocated a test point and analog signatures will be stored for later comparison.

Manual Programming

In case no CAD Data is available – such as in third party service and repair applications – use manual programming by entering the IC package style and pin number.


Add and display circuit diagrams and other supporting documents such as component´s datasheets, photos, etc. to the repair project.

Repair Report

For each PCB assembly under repair, a repair report may be produced to record and document all relevant information such as serial number, repair history, faults found. Historical data from previous repairs may help to identify faults at an early stage.