Thorough test of a PCB and accurate fault finding is key to our success – and yours!

A PCB can be tested in many ways either by using the edge connector, testing each device in turn, measuring network signatures or using an in-built Boundary Scan capability if it is fitted – or a mixture of all these!

Achieving full test coverage (finding the maximum number of faults) using a single test method is not practical on the technology in use today and multiple different techniques are required to do this. Having a test capability which can apply different test methods as and when required is essential for delivering accurate and reliable test results.

Diagnosys has a range of PCB test products which have been developed to provide in-depth test and accurate fault information:

Test and Fault finding

The PinPoint range provides a benchtop PCB test and fault finding system and is focussed mainly on fixture-less test methods which use a range of test clips or the robust Device Test Interfaces (DTI) to test each device in turn.

The AutoPoint is an ideal complement to the PinPoint range and provides automatic probing of networks using an impedance signature test method.

The S500 provides a functional test of an LRU or PCB from the edge connectors and uses a manually held guided probe to access internal networks of the circuit to determine the cause of a failure.

The S790 is a combinational test system aimed at the precision testing of PCBs either by using in-circuit, functional or combinational test techniques. Automatic diagnostic algorithms determine the most likely cause of a failure to a component, network or functional block level.

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Reverse Schematic Engineering

A schematic diagram is essential for the creation of a reliable test program. If no schematic diagram exists then it can be reverse engineered from a physical PCB using the in-built capability of the PinPoint systems. Although this capability exists across the PinPoint range it is often suggested that a specially configured PinPoint is used for larger PCBs in order to facilitate a more cost effective solution.

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Test programming tools

A range of tools exist to help the programmer create a comprehensive test program.

  • XJTAG – a comprehensive Boundary Scan test and development system for devices and PCB having in-built capability.
  • The TestVue™ software platform used across the PinPoint range, offers a powerful array of features including TestFlow™, Analog virtual instruments, SeaWave and a simple intuitive user interface. The software is renowned for its ease-of-use and has been specifically designed for the test and fault finding of electronic circuits and test data recording.
  • CATE™ software – The powerful Computer Aided Test Engineering (CATE) software is at the heart of the S790 Series2, providing an icon based object-orientated interactive graphical environment operating under Linux. CATE provides a highly efficient and effective set of test program development and diagnostic tools, all supported with interactive help to ensure you can always use the full capability of the system.
  • NI LabView, a development environment designed specifically to accelerate the productivity of engineers.
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Conformal Coating Removal

The CRS8000 system is designed for the ESD (Electro Static Discharge) safe removal of protective coatings which are applied to PCBs to prevent the ingress of dirt and moisture. The system uses a static safe media in an ionised airstream and doesn’t use chemicals.

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Portable PCB troubleshooting

The FaultFinder VIP is a small portable system which uses network impedance signatures to analyse a PCB. It is a power-off technique which does not require any understanding of the PCBs functionality. It is a useful troubleshooting tool and can also be used for first-line screening.

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Performance Test and Diagnostics

Checking the correct functionality of a PCB at speed and then finding the cause of any failure requires a high performance test system. The S790 system is designed for the high speed test and fault finding of a PCB and can check a PCB is functioning correctly against set of test vectors accurately in time.

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Programming Product Range

Graphical Guided Probe

Functional diagnostic testing - moving beyond Go / NoGo functional test, the S500 systems utilize a guided dynamic functional probe to identify the root cause of a failure in a circuit.

NI LabView

NI LabView, a development environment designed specifically to accelerate the productivity of engineers.

XJTAG Boundary Scan test solution

The XJTAG development system consists of a suite of software products and XJLink (a USB-JTAG connector) that enable users to test and program electronic circuits which are designed with Boundary Scan capability. It has been designed to unlock the potential of JTAG Boundary Scan test.

TestVue™ Software

TestVue™ software, which is used throughout the PinPoint range, offers a powerful array of features including TestFlow™, Analog virtual instruments, SeaWave and a simple intuitive user interface. The software is renowned for its ease-of-use and has been specifically designed for the test and fault finding of electronic circuits and test data recording.

CATE Software

The powerful Computer Aided Test Engineering CATE™ software is at the heart of the S790 Series2, providing an icon based object-orientated interactive graphical environment which operates under Linux. CATE provides a highly efficient and effective set of test program development and diagnostic tools all supported with interactive help to ensure you can always use the full capability of the system.

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