Hipot Testing a Printed Circuit Board (PCB) With Four Boards Per Panel

4 panel Circuit board

Challenge:

A customer was required to add a high voltage test to an existing continuity test on printed circuit boards. The boards were built four to a panel. They wanted to avoid the cost of a new fixture by utilizing an existing pogo-pin test interface. In event of a failure, the test needed to determine which of the four PCB's failed.



Solution:

A custom script called a 'one_up_test' was created to test all four quadrants as though they were one board. If all four quadrants were good, the main test passed. If the main test failed, the script called individual programs specific to each quadrant to determine which part was bad. Digital I/O was utilized to mark the bad part.



Results:

The customer was able to successfully add hipot testing to their existing test process without incurring the cost of a new fixture. This was done with minimal additional test time.