There are several possible reasons why a GPS unit might not turn on. For example, there could be something wrong with the charger such as a blown fuse, bad power adapter, or defective cable connection. The internal battery inside of the GPS also might be defective or worn-out. Or, worse yet, the unit may have a more serious hardware fault.
You don't say how you are charging the unit. I'd recommend trying a different charge method. The GPS can be charged one of three ways: connection to you car via the automobile power cord, connection to your computer via a USB cable, or charging from a wall outlet using an optional AC adapter. If you are charging the unit in your car, try connecting it to your computer (or vice versa). If the GPS turns on after being charged using one method but not the other, then that pretty much tells you that the problem is with the cable or adapter being used for charging.
The Garmin NUVI 650 does not contain an internal fuse, but there is a common 3 amp fast-blow fuse located in the vehicle power cord. If you find that the problem happens when trying to charge the unit in your vehicle, then you should change this fuse and see if that corrects the issue. The fuse can be replaced by unscrewing the black round piece at the end of the cigarette lighter plug.
If the unit does not turn on regardless of what charge method you use, then the fault is likely with the GPS itself. Either the internal battery would need to be replaced or the unit would need to be serviced to correct whatever hardware fault is causing the problem.
I would recommend you contact the manufacturer before you attempt to open up the unit. Opening the case of the GPS may void your manufacturer's warranty (if the unit is still under warranty).
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May 14, 2008 |