8. MAINTENANCE, TROUBLESHOOTING .
.....................................................8-1
8.1 Preventive Maintenance.....................8-1
8.2 Replacement of Batteries ...................8-2
8.3 Replacement of Fuse .........................8-2
8.4 Replacing the Magnetron ...................8-3
8.5 Replacing the Synchro Belt (1824C only)
.......................................................8-3
8.6 Trackball Maintenance .......................8-3
8.7 Simple Troubleshooting......................8-4
8.7.1
General...................................8-4
8.7.2 Radar......................................8-4
8.7.3 Plotter .....................................8-5
8.7.4 Sounder ..................................8-6
8.8 Diagnostics ........................................8-7
8.8.1
Memory I/O test.......................8-7
8.8.2 Test pattern ........................... 8-10
8.8.3 Keyboard, remote controller test ...
......................................... 8-11
8.9 GPS Status Display.......................... 8-12
8.10 Clearing Memories...........................8-13
8.11 Error Messages................................ 8-14
APPENDIX............................................AP-1
Menu Overview....................................... AP-1
Geodetic Chart List ............................... AP-10
Icons .................................................. AP-11
SPECIFICATIONS................................. SP-1
INDEX.................................................... IN-1