Check that you have not misidentified a star used for an alignment. This would 
cause the pointing model to be inaccurate. 
  
For the first few   Additional Align   operations, make sure that the stars used are 
well spaced in RA, and are accurately centered prior to performing the 
  Additional Align.    
  
Avoid systematic errors when building a pointing model. Many star diagonals will 
de center stars when they are rotated relative to the OTA. Rotate the diagonal 
back to a consistent position before centering objects for alignment. 
  
For highest accuracy, use the Bright stars of the   Align Telescope   menu for 
alignments, since their positions are stored with the highest accuracy. 
Alternatively, use objects transferred from a PC in High Precision mode. 
  
If pointing at stars and deep sky objects is accurate, but solar system objects are 
significantly off, the UTC date or time setting may be wrong.  
7.1.8  Database Object Selection Problems 
  
If you cannot enter a single digit object identifier (e.g. you keep getting M40 
instead of M4), use the HC buttons to scroll to the 
 symbol to terminate data 
entry. 
7.1.9  Strange or Garbled Characters in Deluxe Hand Controller 
Display 
  
Try using the   Setup
Restore Defaults   menu item to reset the CMOS. Also 
check to see you have the latest EPROM software. 
7.1.10  Mount Takes Too Long to Center Object 
  
The object may be close to the east or west limit, where it will move the last few 
degrees in centering mode.  
7.1.11  Mount Continuously Beeps 
  
You have hit the east or west limit. Slew away from limit.  
  
If this happens immediately after start up, limits may be incorrectly set. Cold start 
the mount, and check the limits. Slew to the places where the limits should be and 
select   Setup
Mount Parameters
Set Safety Limit   for both the east and the 
west limits. 
7.1.12  Autoguider Calibration Problems 
  
 Be certain that you are in Photo Mode or All Speed Mode. The autoguider port 
will only work in these two modes. Make sure you have not left Gemini in Menu 
Mode, and that you are using a tracking rate that is appropriate for your 
observation.   
  
Make sure you have the correct cable to connect the autoguider to the Gemini. Be 
sure to use an Optocoupler unit or Relay Box  (with appropriate cable) if you have 
an autoguider without relays and an older Gemini (motor cables use RJ 45 
connector).   If your Gemini unit uses DIN connectors for the motors, you 
can
Gemini Users Manual 
7  
3






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