Firmware Versions on the Celestron CPC Series
NexStar CPC scopes have two sets of processors. There are processors in
the hand control (HC) and there are processors in the base of the scope in a
section known as the motor control (MC). The MC firmware can be updated by
the owner (read
this). The HC firmware can also be updated by the owner (read
this).
For additional details about features on newer versions, check the
Manuals section of this web site.
Please
email me if you have a scope with different versions than listed here.
HC Versions
- 4.13 - This version allows the motor control (MC) firmware to be upgraded
via the port on the bottom of the hand control.
- 4.12 - The most significant change in this version is variable brightness
control for the display and buttons - values are from 0 (off) to 8 (full
brightness). There is also a fix that reduces (but does not eliminate)
the chance that the display comes up blank the first time you power up, a
problem much more prevalent in cold weather. The fix on those occasions
when it does still come up blank remains the same - turn off the power, wait a
couple of seconds and turn on the power again. The Version menu item has
been changed - it now displays the mount model after displaying the HC and MC
versions. This version is also the first to support the new NexStar SE
mounts.
- 4.10 - The most significant change in this version is Sync. Sync is
available both via the hand control and via PC software (TheSky, Starry Night,
etc.). This provides very accurate GoTo pointing in the area of
the sky where the Sync is performed and it allows the PC software to match
with the actual position the scope is pointed to. Other new features:
Calibrate Goto (help to improve GoTo accuracy), general pointing accuracy
improvement, a display of the polar alignment error (when EQ mounted on a
wedge) and the ability to start PEC playback and proceed with normal use of
the hand control.
- 4.03 - Original version for the NexStar CPC.
MC Versions
- 5.14 - Corrects a problem with the cordwrap prevention feature.
- 5.07 - Original version for the NexStar CPC.
Determining Versions
Use the Version
option on the Utility menu.
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