A1329610081_17208_20_2017_PCB Assembly and Repair.ppt - Thursday September 12 2019 1 Introduction An electronics technician uses a variety of tools to

A1329610081_17208_20_2017_PCB Assembly and Repair.ppt -...

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Thursday, September 12 , 2019 1
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Introduction An electronics technician uses a variety of tools to build and repair electronic circuits on printed circuit boards. These tools coupled with electronic test equipment allow the technician to analyze any electronic circuit for proper operation or identify faulty circuit components and repair them. The right tools make the job easier for an electronics technician. The installation and repair of components in a printed circuit board may be accomplished through the use of tools designed specifically for the task. 09/12/19 2
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Tool used for PCB Fabrication and Repairing 09/12/19 3
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Tool used for PCB Fabrication and Repairing 09/12/19 4
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Tool used for PCB Fabrication and Repairing 09/12/19 5
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Tool used for PCB Fabrication and Repairing 09/12/19 6
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PCB Holder 09/12/19 7 Two types of printed circuit board holders for holding a printed circuit board while it is being assembled or repaired. The fixtures should provide good support and should be rotatable.
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illuminated Magnifier 09/12/19 8 An illuminated magnifier provides a means of detecting improper connections or broken traces on the printed circuit board. It also helps when soldering SMT components to a printed circuit board.
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Electronic Test Equipment Electronics technicians use a variety of test equipment for determining proper operation, aligning components, and troubleshooting a circuit. 09/12/19 9
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An isolate power supply is important when powering a circuit to prevent it from generating a lethal shock potential. Power supplies are available that generate DC voltage and/or AC voltage. Both fixed and variable voltage power supplies are available. The power supply is used to supply a circuit with the correct voltage for testing and troubleshooting. Analog and digital multimeters are the first pieces of equipment used to analyze a circuit An oscilloscope is one of the most useful pieces of test equipment available to the electronics technician. It can identify defects in a circuit while it is powered up; this includes changing parameters of a circuit. It displays the instantaneous voltage on the vertical axis against time on the horizontal axis. The oscilloscope can detect both DC and AC signals. Some oscilloscopes allow the comparison of two waveforms of the same frequency to determine the phase shift. 09/12/19 12
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Signal generators are used in the testing and aligning of radio transmitters, receivers, and amplifiers. They are also used for troubleshooting various electronic devices that require an input signal. Signal generators produce an alternating voltage of a desired frequency and amplitude for testing or measuring a circuit. Signal generators are classified by their frequency into the following categories: audio generator, video signal generator, radiofrequency generator, frequency-modulated RF generators, and special types of signal generators that combine several or all of the frequency range A function generator is a type of signal generator and is a common piece of electronic test equipment. The function generator is capable of generating
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