Sony NV-U70 GPS Navigation System Manual

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User's manual Sony Personal Navigation System 
Navigation 
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No GPS reception? 
When the received GPS signal is not sufficient, the following 
message appears: 
 
You have two possibilities: 
Ù  Wait until navigation starts. This will happen as soon as the 
GPS reception is sufficient. 
Ù  Tap Cancel and restart navigation as soon as the reception of 
GPS signals is convenient. You may notice that by watching 
the GPS symbol on the screen: it becomes GPS ready when 
the reception is good.