TwoNav Cross+ Wont Charge
The device suddenly wont charge. i myself disassembled the unit, the voltage at output terminal from the c-type socket is ok. after that in the circuit board i measured the value of charging components like diodes and resistors, i found the value of one resistor in mega ohms within the charging components. i am confused if this value is out of range or if it is ok. I might solve this issue if i had the authentic circuit diagram. There's lot of work pending due to this issue. Can anyone please give me some solutions .........
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Hello,
"I don't know if this value is out of range or if it is correct."
In general, a fault in a resistor never increases its value, either it is open (infinite impedance) or it is short-circuited (zero impedance). If you have opened it and if you have identified the reference of the battery charging component, you should find the typical assembly of this component quite easily (on the manufacturer's website). What would be useful in your approach would be to know the voltage and current at the terminals of the battery when the GPS is connected to the charger and to compare these values with the typical charging values that are available on the websites of the charging component manufacturers.
Good luck
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