Hi, David — sounds like your SeaTalk1 bus may have a bad positive or ground lead connection somewhere. I’d suggest you trace the SeaTalk1 lead to the breaker panel and check BOTH the hot and ground leads for corrosion or a bad connection. Also unplug and replug the SeaTalk connections at the back of each instrument a couple of times to “wipe” the connectors.
Let me know if any of this helps; and you can call me on my cell at 612-839-6565 if you’d like a phone consult; I’d hate to see you lose vacation time over this. — Fred Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI > On Aug 18, 2017, at 8:51 AM, David via CnC-List <cnc-list@cnc-list.com> wrote: > > All was well on our departure from home base to PTown for a long weekend. > Then started get a low voltage warning via instruments. 8.8 v. Not right as > engine meter showing all is well at 13+ > > Then ST fail at ST 7000 autopilot and depth,speed, and wind indicator power > out. Upon harbor entrance depth and speed and wind (wind powered up but no > readings) powerup but flickering lamps > > This morning nuthin. > > Multimeter shows 8 volts at power source of instruments. So jump to > alternate power source and still nothing. > > Auto still powered up but still reading fail and gyro powered up by reading 0 > > I know it's diagnosing from afar but any first pass thoughts > > Thanks in advance.
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