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In electronics, rework (or re-work) is the repair or refinish of a printed circuit board (PCB) assembly, usually involving desoldering and re- soldering of surface-mounted electronic components (SMD). Mass processing techniques are not applicable to single device repair or replacement, and specialized manual techniques by expert personnel using ...
All 153 people on board survived uninjured. July 1: Continental Airlines Flight 12, a 707-124 N70773 overran the runway and crashed at Kansas City, Missouri, United States, with no casualties. [ 1] August 21: Middle East Airlines 720-047B is damaged beyond repair by shelling at Beirut, Lebanon.
As an alternative, many circuit board assembly houses coat assemblies with a layer of transparent conformal coating rather than potting. [5] Conformal coating gives most of the benefits of potting, and is lighter and easier to inspect, test, and repair. Conformal coatings can be applied as liquid or condensed from a vapor phase.
Printed circuit board of a DVD player. Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and some electronic components mounted using through-hole mounting. A printed circuit board ( PCB ), also called printed wiring board ( PWB ), is a medium ...
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A new law that takes effect this week in Iowa means consumers won't be stranded indefinitely by auto repair shops holding their vehicles hostage while trying to collect extra money from them.
Electronic components have a wide range of failure modes. These can be classified in various ways, such as by time or cause. Failures can be caused by excess temperature, excess current or voltage, ionizing radiation, mechanical shock, stress or impact, and many other causes. In semiconductor devices, problems in the device package may cause ...
Barney Oldfield (left) racing a car on a board track in 1915 Qualifying speeds at two-mile Tacoma Speedway were sometimes higher than those at Indianapolis. The first board track for motor racing was the circular Los Angeles Motordrome, built in 1910 in the area that would later become the city's Playa del Rey district. [1]
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