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Table of Contents
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Operating the HDR 650 30
The HDR 650 Control Head............................................................................................ 30
Power On/Off.................................................................................................................. 31
Key Functions Overview ................................................................................................ 31
Units................................................................................................................................ 32
Shallow Alarm................................................................................................................ 33
Deep Alarm .................................................................................................................... 34
Set Offset (waterline or keel) ........................................................................................ 35
Maintenance 36
HDR 650 Maintenance .................................................................................................. 36
Transducer Maintenance .............................................................................................. 36
Troubleshooting 37
HDR 650 Doesn't Power Up .......................................................................................... 37
No Bottom Reading on the Display .............................................................................. 38
No Continuous Depth Display in Very Shallow Water ................................................ 38
Screen Fades, Images are Not Sharp .......................................................................... 38
Bottom Reading Disappears During a Hard Turn ........................................................ 38
1-Year Limited Warranty 39
Humminbird® Service Policy 40
Returning Your Unit for Service .................................................................................... 41
Specifications 42
Contact Humminbird® 44