
TABLE OF CONTENTS
| FOREWORD | iii | |
| SYSTEM OVERVIEW | iv | |
| 1. OPERATION | 1 | |
| 1.1 | Control Description | 1 | 
| 1.2 | Turning the Power On/Off | 1 | 
| 1.3 | Adjusting Display Contrast, | 
 | 
| 
 | Brilliance | 2 | 
| 1.4 | Choosing a Display, Frequency | 2 | 
| 1.5 | Menu Operating Procedure | 5 | 
| 1.6 | Automatic Operation | 5 | 
| 1.7 | Manual Operation | 6 | 
| 1.8 | Choosing Picture | 
 | 
| 
 | Advance Speed | 7 | 
| 1.9 | Measuring Depth | 8 | 
| 1.10 | 8 | |
| 1.11 | Suppressing Interference | 9 | 
| 1.12 | Suppressing Low Level Noise | 9 | 
| 1.13 | Erasing Weak Echoes | 10 | 
| 1.14 | White Line | 10 | 
| 1.15 | Waypoints | 10 | 
| 1.16 | PROG Key | 12 | 
| 1.17 | Picture Color (Hue) | 13 | 
| 1.18 | Deep Gain | 13 | 
| 1.19 | Alarms | 13 | 
| 1.20 | Resetting Trip Distance | 15 | 
| 1.21 | Setting the Draft | 15 | 
| 1.22 | Gain Compensation | 15 | 
| 1.23 | Setting Up Nav Data Displays | 16 | 
| 2. SYSTEM & INSTALLATION MENUS | .... 18 | |
| 2.1 | System Menu | 18 | 
| 2.2 | Installation Menu | 20 | 
| 3. MAINTENANCE, | 
 | |
| TROUBLESHOOTING | 22 | |
| 3.1 | Maintenance | 22 | 
| 3.2 | Cleaning the Display Unit | 22 | 
| 3.3 | Transducer Maintenance | 22 | 
| 3.4 | Replacing the Fuse | 22 | 
| 3.5 | Battery Voltage Alert | 22 | 
| 3.6 | Troubleshooting | 23 | 
| 3.7 | Diagnostics | 23 | 
| 3.8 | Test Pattern | 24 | 
| 4. INSTALLATION | 25 | |
| 4.1 | Display Unit | 25 | 
| 4.2 | 25 | |
| 4.3 | Transom Mount Transducer | 27 | 
| 4.4 | 29 | |
| 4.5 | Optional Triducer | 30 | 
| 4.6 | Optional Water Temperature/Speed | |
| 
 | Sensor | 34 | 
| 4.7 | Wiring | 34 | 
| 4.8 | IEC  | 36 | 
| SPECIFICATIONS | ||
| OUTLINE DRAWING | 
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| INTERCONNECTION DIAGRAM | 
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