Quote:
Originally Posted by NWSeadog
If your Benmar unit is a course setter then there is a troubleshooting guide available that might help. A hard over condition sounds like it could be one of the IC's that are blown. They are very susceptible to failures from over voltage conditions. The ICs are on sockets so the hardest part is to get the unit out of the boat then 30 minutes to change out about $10 worth of ICs.
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I had a course setter when we first bought the boat. Had a similar issue, which turned out to be the lamp in the compass unit had burned out.
Then had a similar issue that wasn’t the lamp, but I replaced instead of working through it. I went with a ComNav AP, which interfaced with the BenMar drive unit seamlessly.
If you or anyone else is interested, I still have all the BenMar parts sitting in a bin. Free to a good home, just cover shipping.