Anschütz Gyro Compass Standard 20 Service Manual: A Comprehensive Technical Guide
That said, here is a practical guide to the Anschütz Standard 20 service manual legitimately and safely.
Use twisted, shielded pairs for NMEA 0183 data lines to avoid signal interference.
Raytheon Anschütz Gyro Compass Standard 20: Comprehensive Service, Maintenance, and Troubleshooting Guide
Verify that the four rubber-metal shock absorbers are uncompressed and free from paint or oil contamination. Electrical Connections
The internal heating element failed, or the temperature sensor is faulty.