8.4    REPLACEMENT OF MAJOR PARTS 
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8.4.5    Replacement of Backup Battery 
 
Caution:  Replacement of backup battery must be made by specialized service personnel. 
  For details, refer to Service Manual. 
 
A coin-cell battery maintains radar system configuration, date, and time information while power off condition. 
radar system configuration is saving to non-volatile memory at fixed intervals. 
 
 
How to Replacement of Backup Battery 
 
 
1. Remove the Coin-Cell Battery from the Holder 
 
Be careful, don't break holder. 
 
3. Fix the Coin-Cell Battery in the Holder 
 
Turn up + surface. 
Battery type : CR2450