If the unit operates but is erratic, sometimes pressing the Default settings from the menu fixes things, but then you have to reconfigure your personal tastes and this takes a lot of button-pushing and some trial and error. Much of configuring a chart plotter is whether you want course up or North up? (to correspond with a printed chart), scale selection, the amount and kind of display info wanted and where you wish your GPS units, course, range/bearing, speed made good, clock time, elapsed time, ETA, UTC or local time displays arranged, etc. When the plotter works, there is typically a Menu button that allows you to configure the multiple displays and a manual might not be absolutely needed. After a number of good working years, that cheaply fixed my Standard-Horizon GPS color chart plotter using C-Map cartridges. If the GPS chart navigation system is not working, there might simply be an internal replaceable memory battery needed.

Is the autopilot system working or not? Often, the electro-mechanical fluxgate compass is the culprit if you have a random number generator with occasional correct course display. Caveat Emptor! None of my old marine electronics catalogs from mainly USA firms list any Cetrek items. Some Cetrek stuff is also listed for sale on EBay. I browsed for Cetrek 930 Autopilot and found a couple of sites-one a cruiser forum with similar Cetrek requests/comments and the other a possible manual supplier. British make? As Robyn is 25 years old and no Cetrek manuals this suggests a used system might have been installed. World's leading marketplace.ĭerek, Cetrek was a marine electronics manufacturer long out of business. Find best value and selection for your Cetrek 770 Boat Autopilot Powerhelm Users Manual search on eBay.

In ition to a flatbed aten cetrek 727 autopilot manual for. This Original UK Cetrek Compass Works With the Cetrek 737 Autopilot & 930-617.

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