The printed circuit boards revolutionized the way
electronic equipment was made. The invention of these boards helped in more
efficiency and reducing the size of the devices. Printed circuit boards could
be produced faster when compared to the hand-soldered circuit boards of
yesteryears. This helped to meet the demand for electronic products. The
circuit boards are manufactured by a company and send to the manufacturers of
the device or appliance. The responsibility of ensuring that the boards
functioned properly lie with their manufacturers and it is essential to conduct
an in-circuit test for this purpose.
Understanding the Need for In-Circuit Testing
An in-circuit test machine tests whether all
the components in a printed circuit board are working properly. A PCB has
hundreds of components. Apart from this, there are numerous solder connections.
If the board has to work properly all these must be perfect. Every component
must function as it is expected to. Every solder connection must transmit power
without any interruption.
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With so many components and connections, it is
impossible to test each one of them separately. This is where the in-circuit
testing techniques help in testing all these in one go. These machines are
made in different ways to suit the needs of a particular industry. Various
types of in-circuit testing machines are available in the market that helps in
ensuring that the circuit boards are fully functional.
The Benefit Of Using In-circuit Testing Methods
The in-circuit devices like HP 3070 can test
a variety of aspects in a printed circuit board. Firstly, it can test the sizes
of the components and land. It will also test the spacing between components.
The device can check whether the soldering of the components has been done
properly and whether they transmit power as needed. The test will indicate if
there are any shorts in the circuit. The values of each resistor in the circuit
can be read.
The HP 3070 in circuit tester will find out
if there are any open connections where there should be electrical continuity.
The presence or absence of different components can be tested using this test
method. If any of the components are not oriented in the right way the board
will not function properly. Sometimes they can be fixed the wrong way. This can
also be detected using this type of testing method.
The Benefits of Using an In-Circuit Testing Device
Using testing devices like the HP 3070 ICT tester helps PCB
manufacturers to ensure that they supply only fully working boards to their
customers. The testing method gives accurate results and is very quick. It is
simple to use there is hardly any possibility of error by human interference.
The tester can be programmed easily depending on the circuit board being
tested. The companies that supply the testers will also program the same.
Because of the speed of testing, it is very useful
for large volume testing. The test is comprehensive and can detect faults in
every component of the board. The results that are received after the testing
are easy to be interpreted. This avoids the need for any experts for this job.
Most of the test devices don't require much maintenance and work without
failure for a long time.
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