Question about Lowrance GlobalMap 3500C GPS Receiver
You can't turn it off maybe the switch is faulty or the unit is freeze or hang .You can turn it off by taking off the power supply connected by unplugging it to the source.Flickers and crackels this the indication of cold solder.. A cold solder joint is where a lead of a component is not soldered at a high enough temperature and results in a bad electrical connection which can respond to physical shock and thermal stress.Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected . When the receiver unit turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. A solder joint may also be broken or cracked because the receiver was dropped or hit. Look on the front and back of the board along the defective circuit to see any components that look like they are not soldered effectively or the solder connection is cracked or broken. A cold solder joint looks dull and/or bulging unlike the smooth and shiny normal solder joints. Its better you resolder all components parts joints of power supply circuit board and also inaudio section.Thats is the best solution for this kind of problem its proven of all electronic technician
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
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