viii
10.MAINTENANCE.............................................................................................29
Fuse Replacement..............................................................................................................29
Cleaning..............................................................................................................................29
Maintenance of Transducer.................................................................................................30
11.TROUBLESHOOTING ...................................................................................31
Basic Troubleshooting.........................................................................................................31
Diagnostic Self-Check.........................................................................................................33
Transducer Check...............................................................................................................34
Speed/Temperature Sensor (Option) Check........................................................................34
12.INSTALLATION..............................................................................................35
Display Unit Installation.......................................................................................................35
Transducer Installation ........................................................................................................37
Transducer Preparation and Painting ..................................................................................37
Speed/Temperature Sensor.................................................................................................38
Cable Connections..............................................................................................................39
13.SYSTEM MENU SETTING.............................................................................41
Operation Procedure...........................................................................................................41
Description of System Menu Item........................................................................................42
Restoring Factory Settings..................................................................................................44
14.SPECIFICATIONS..........................................................................................45
Complete Set.......................................................................................................................47
Installation Materials............................................................................................................48
Accessories.........................................................................................................................48
Spare Parts.........................................................................................................................48
Option..................................................................................................................................48
Transducer & Hull Bottom Installation Materials...................................................................49
APPENDIX
1. Changing Transducer Output Power Setting.......................................................................A-1
2. Changing Transducer Frequency Specifications.................................................................A-2
3. Adjustment After Replacement of MAIN or AMP Board (entering amplifier
gain offset)..........................................................................................................................A-4
4. Transducer 50BL-12/50BL-24H...........................................................................................A-6
5. New BLT Transducers.........................................................................................................A-7
OUTLINE DRAWING................................................................................ D-1
INTERCONNECTION DIAGRAM........................................................................... S-1