Delphi NAV300 用户手册

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Delphi NAV300 User’s Guide 
 
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Section 15 
Troubleshooting 
The Delphi NAV300 is designed and built to provide trouble-free performance. If 
it does not appear to be functioning properly, please follow the troubleshooting 
guidelines below. 
 
No GPS fix: 
•  Check the satellite icon in the upper right corner 
of the map view screen. 
•  Make sure the antenna on the unit is pointed 
outward and upward with a clear view of the sky. 
•  Ensure that the vehicle does not have a heat-
reflecting or heated windshield. An external 
antenna can be purchased from your retailer to 
help ensure adequate GPS signal reception. 
•  The NAV300 may take several minutes to get a 
GPS fix the first time you use it.  After the unit 
locates the satellites, it will-self calibrate each 
subsequent time you use the unit, it should take 
less than 40 seconds to get a fix.  If you travel 
overseas, the unit can take up to 20 minutes to 
acquire a first fix. 
GPS randomly loses its 
fix: 
•  Make sure the antenna is pointed upward and 
outward, with a clear view of the sky 
•  The receiver will continue to search for a signal 
and will automatically recalculate the route once 
reception is restored. 
No audible destination 
instructions: 
•  Check and adjust the volume with the dial on the 
right side of the unit or the volume settings in the 
Navigation function. 
Unit does not start: 
•  Check that you have followed the instructions. 
•  Contact Delphi Technical Support at 
1.877.667.8700, or check the website at 
www.shopdelphi.com 
 
Contacting Technical Support 
Contact Delphi at 1.877.667.8700 Monday – Friday, 8:00am – 8:00pm; Saturday, 
10:00am – 5:00pm, Eastern Standard Time, or visit: www.shopdelphi.com