Table of Contents
ii
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
