6.5.2 

GCP for Windows

.............................................................................. 70 

6.6 

The Jemini Project......................................................................................... 70 

7

Troubleshooting....................................................................................................... 71

7.1 

Common Error Cases .................................................................................... 71 

7.1.1 

Gemini Does Not Start .......................................................................... 71 

7.1.2 

Motor(s) Slew Uncontrollably on Startup............................................. 71 

7.1.3 

Mount Tracks in the Wrong Direction .................................................. 71 

7.1.4 

Stalls While Slewing or Tracking ......................................................... 71 

7.1.5 

UTC Date or Time Setting Wrong ........................................................ 72 

7.1.6 

GoTo Position is Completely Wrong.................................................... 72 

7.1.7 

Poor Pointing Accuracy ........................................................................ 72 

7.1.8 

Database Object Selection Problems..................................................... 73 

7.1.9 

Strange or Garbled Characters in Deluxe Hand Controller Display ..... 73 

7.1.10 

Mount Takes Too Long to Center Object ............................................. 73 

7.1.11 

Mount Continuously Beeps................................................................... 73 

7.1.12 

Autoguider Calibration Problems.......................................................... 73 

7.1.13 

Gemini Displays  Autoguider Error .................................................... 74 

7.1.14 

Serial Communications Problems ......................................................... 74 

7.1.15 

"CMOS reset" Message upon Startup or Incorrect Date/Time ............. 74 

7.2 

Debug Mode.................................................................................................. 74 

8

Appendices ............................................................................................................... 75

8.1 

Gemini Menus ............................................................................................... 75 

8.2 

Catalogs......................................................................................................... 79 

8.3 

Alignment Star List ....................................................................................... 80 

8.4 

Serial Line Protocol....................................................................................... 81 

8.5 

Serial Communications ................................................................................. 91 

8.6 

Autoguider Port ............................................................................................. 92 

8.6.1 

Connecting Autoguiders with TTL Outputs to Older Gemini Systems 92 

8.7 

Upgrading the EPROM ................................................................................. 94 

9

Index ......................................................................................................................... 95

Gemini Users Manual 

iii