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7. MAINTENANCE, TROUBLESHOOTING............................................................... 7-1
7.1 Preventive Maintenance ......................................................................................................7-1
7.2 Replacement of Battery .......................................................................................................7-1
7.3 Replacement of Fuse...........................................................................................................7-2
7.4 Trackball Maintenance.........................................................................................................7-2
7.5 Simple Troubleshooting .......................................................................................................7-3
7.5.1 General ...................................................................................................................7-3
7.5.2 Radar ......................................................................................................................7-3
7.5.3 Plotter......................................................................................................................7-4
7.5.4 Sounder ..................................................................................................................7-5
7.6 Diagnostics...........................................................................................................................7-6
7.6.1 Memory I/O test ......................................................................................................7-6
7.6.2 Test pattern .............................................................................................................7-9
7.6.3 Keyboard, remote controller test ..........................................................................7-10
7.7 GPS Status Display............................................................................................................ 7-11
7.8 Clearing Memories.............................................................................................................7-12
7.9 Error Messages..................................................................................................................7-13
APPENDIX ..................................................................................................................A-1
Menu Overview.............................................................................................................................A-1
Geodetic Chart List .................................................................................................................... A-10
World Time Chart........................................................................................................................A-11
Icons .......................................................................................................................................... A-12
INDEX................................................................................................................... Index-1
SPECIFICATIONS .....................................................................................................SP-1
Declaration of Conformity