Sanyo NVM 4370 Owners Manual - Page 41
Troubleshooting - restore
UPC - 086483071317
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6 Troubleshooting 6.1 Your device does not turn on. • Check that the battery switch is ON. • Check that the Car adaptor is connected to your device. • Check that the battery power of your device is enough. 6.2 The internal battery cannot be charged or charging time is long. • Check that the battery switch is ON. • Check that the Car adaptor or PC by USB cable is connected to your device. • In case of USB charging, make sure that your device is OFF state and the USB interface of your PC supports 500 mA at 5 Volts (Bus Powered). • In comparison with Car adaptor, USB charging takes long time. 6.3 System stops responding; is "frozen" or "locked up." • To reset your device, take a sharp object like a pen and depress the reset button on the bottom of the device. • If your device still does not respond after performing "reset", disconnect all cables, including the Car adaptor, from your device. Slide the battery ON/OFF switch on the bottom of the device to the OFF (left) position. Then slide it to the ON position again. 6.4 Users can also perform a "system reset." • To do a "system reset" in the Main Menu, tap the Settings, then tap the Sys Info. This will allow you to do a factory reset (restore to default settings), reset the GPS and recalibrate the touchscreen interface. 6.5 Screen is not displayed normally. • Make sure that brightness setting is appropriate. • There is the case that LCD does not work normally at a high temperature and low temperature. Make sure that the tempera- ture is in the normal operating range. 6.6 The touch screen does not respond well. • Calibrate the screen of your device. 6.7 Connection problems with PC. • Make sure that the cable is securely plugged into the USB port on your computer and on the device. • Connect the USB cable directly to your computer - do not run the cable through a USB hub. • Reset your device before connecting the cable. Always disconnect your device before you restart your computer. 6.8 No GPS connection • Make sure that your device has a clear view of the sky. • Note that the GPS reception can be affected by: - Bad weather - Dense overhead obstacles (e.g. trees and tall buildings) - Other wireless devices in the car - GPS signal may not be received if a window is coated with film. 6.9 No sound coming from the device. • Make sure that volume setting is not too low. • The built-in speaker turns off when the headphones jack is being used. • The built-in speaker also turns off when the FM transmitter is ON. 41