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Tetra OS v.1.5/1.2 Update ReadMe File                                             Jun-03-2011
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Please read this file carefully before attempting to install the new OS. It could prevent you
from experiencing a lot of aggravation and grief.

Most OS updates fix only minor bugs that the vast majority of users never encounter. If you
are experiencing a problem with your Prophet please contact support@davesmithinstruments.com
for help in diagnosing the cause. The OS will not "go bad" or become corrupt unless there is
a hardware problem, so re-installing the OS will not help and is not recommended. A failed OS
reload could leave you with a useless instrument in need of even more servicing.

This particular update does add new features, so if you are updating from an earlier version,
please follow the instructions carefully for a successful install.

If one of the installed OS versions in your Tetra is already the current version, there is
no need to reinstall it. For example, if your Tetra is already running Voice OS 1.2, just
install the Main OS.


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OS Installation
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Go to http://www.davesmithinstruments.com/support/current_os.php for complete installation 
instructions. Installation is relatively easy when done properly, but can completely disable 
your instrument if done improperly. Read the instructions carefully and completely before 
attempting to install the OS. If you have any questions, please contact Technical Support at
support@davesmithinstruments.com before proceeding.


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New Features
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Several new features have been added to Tetra since its initial release. Some or all of the 
features listed below may be new to you or changed, depending upon the OS version you are 
updating from.

GLOBAL PARAMETERS
  Clock: V1 Master (new value)
  Mode Lock: Off, Prog, Combo (new parameter)
  Balance: -14 to 14 (greater resolution)

SEQUENCER PARAMETERS
  Slew

MISCELLANEOUS PARAMETERS
  Arpeggiator Mode
  
COMBO OPERATION
  Carefully read "Combos" on page 33 of version 1.3 of the manual to familiarize yourself 
  with improvements to combo operation.


For a complete description of the additions and changes, please refer to the latest version
of the Tetra Operation Manual.

http://www.davesmithinstruments.com/support/tetra_downloads.php