Question about Kenwood Protalk XLS TK-3130 (2 Channels) 2-Way Radio
That second battery is the memory battery for the memory chip in the unit. It is more like a watch batter y. It lasts longer but needs replaced from time to time. Hopefully replacing that should get er going.
Posted on May 11, 2009
The Yaesu FT727R does not have any internal fuse that I know of. Straight from the Battery + terminal it goes to the on/off switch (that is coupled to the volume control). From the switch it goes to circuitry (PCB). Incidentally, it is the battery that normally has a thermal switch/fuse that cuts off when a certain temperature is reached (when charging).
Other than check the battery terminals/contacts for corrosion and do a little abrasive cleaning, am afraid you'll have to open the unit for a look and see. Should you be interested, a schematic diagram is available here.
Good luck and kind regards.
Posted on Nov 08, 2007
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