Huntron Access Prober

Huntron Access Electronic Circuit Board (PCB) Fault Detection System

20 seconds... the exact center of 25 points... How quickly can you touch all the points?

Signal analysis is a test method used for troubleshooting electronic circuit boards and detecting faults without power. A current-limited sinusoidal wave is applied between two points of an electronic component or circuit. The resulting waveform or "signal" is displayed using vertical deviations for current and horizontal deviations for voltage. This unique signal represents the entirety of the part being analyzed. By comparing the signals of healthy boards, faulty components can be easily identified.

Huntron Workstation Software

The Huntron Workstation Software is designed to provide high efficiency in testing and troubleshooting electronic circuit boards. Its multi-panel layout enables quick visualization of component signals in fast test production, robotic system control, and easy access to updated CAD imaging tools.

Huntron Workstation Features

• Customized test routines can be created for low-volume production, repair, and rework applications.
• Optional tests can be created using PCB ASCII data, supporting many CAD packages.
• Test databases based on Microsoft Access allow easy creation, editing, and modification of data.
• Test results can be instantly viewed in formats like PDF or HTML, printed, and archived.
• Optional Control functionality allows control from test applications like NI TestStand.
• Easy-to-use test panel for production conditions.
• Automatic alignment feature adjusts the card alignment for the prober device.
• Panels displayed on the screen can be expanded individually or in multiples.
• Device box buttons are added for quick access to general functions.

Finding Faults with Signal Analysis

In signal analysis, issues on electronic circuit boards are detected based on changes in electrical characteristics. These changes are associated with causes like component failure or poor soldering and indicate issues such as PCB processing errors.

Testing with Huntron Robotic Prober

Traditionally, placing a test probe on a powered circuit board is done manually. Only the appropriate test tools are connected to the test points for measurements like voltage, frequency, and resistance, and results are recorded. However, with modern surface-mount materials, connecting to test points has become more challenging. The test points are smaller and very close to each other, requiring precise probe usage to avoid connecting to the wrong test point and prevent damage to the boards.

Automated Testing with Huntron Access Prober

The Huntron Access Prober ensures precise contact with pins on high-tech materials such as PLCC, SOIC, PGA, SSOP, QFP through robotic movements. This system offers testing capabilities without expensive expenses or programming requirements. The high-resolution color camera accurately locates the probe and provides a clear image of the tested PCB.

Adding Components to Functional Test Systems

Diagnosing without power goes beyond functional tests performed with power and enables the detection of faulty components. This allows more detailed diagnostics of errors in powered systems and helps reduce costs.

Repairing Undocumented Boards

Repairing old or unknown electronic circuit boards can be challenging without documentation. Many test systems can become ineffective because they don't have a suitable documentation package for the electronic board being tested. However, Huntron Trackers are highly effective in these cases and ensure proper testing of the board.

Testing Without Power

In repair situations, testing without powering the boards allows for safely examining component signals. Huntron Trackers enable testing without applying power to the boards, allowing errors to be detected non-destructively.

Component Diagnosis

Huntron Trackers, along with advanced software and the Access Prober device, provide cost-effective integrated solutions that complete functional tests. This system ensures faster and more efficient testing while eliminating documentation requirements and issues with incorrect contact.