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59 GB
Getting
Started
Your Sony
CMD-Z7
Basic
Operation
Menu
Operation
Appendix
Appendix
Troubleshooting
Problem Possible Causes Possible Remedies
Unable to switch
on
Empty battery Charge the battery (see page 13).
Defective battery Replace the battery. Note that after several
years, gradual decline is normal.
The icon
appears
Weak signal Move to an open space or nearer to a window.
Outside GSM coverage area Check operator coverage map.
SIM not valid Call your service provider.
Network access not allowed Try manual network search (see page 37).
Call not possible Dialling error Use full national area code. When abroad, use
also international access code to reach home
country.
All calls barred Check settings (Password is needed to clear).
Another SIM inserted Check for new restrictions.
Call barring set Check outgoing call barring settings (see page
39).
01GB01COV-AE4.book Page 59 Friday, August 10, 2001 3:36 PM