Question about Radio Communications
Problems with electronic equipment that exhibits a fault after being switched on for some time can often be traced to a thermal fault. Most usually part of the circuit exhibits high resistance due to a microscopic gap opening up in a component or a defective soldered joint. If removing the jack plug and replacing it clears the fault for a while this suggests that one of the terminals of the socket may be badly soldered. This can sometimes be identified by visual inspection of the joints. Look for a soldered connection which appears as a bead of solder apparently not wetting the circuit track or the pin. If not obvious suggest you carefully resolder all the joints to the jack socket. To get a good joint you may have to clean up areas around existing joints so that the solder wets the metal. Take care not to overheat any surrounding components.
Posted on Aug 28, 2009
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Posted on Jan 02, 2017
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