Oberheim GM-400, Руководство по эксплуатации

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Oberheim GM 400
Digital Signal Processor
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133
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8. INITIALIZATION PROCEDURE
The GM 400 control software is very complex and its programming and optimization has
required a considerable effort.
Every condition of use of the device has been analyzed, reproduced and verified, but it is
impossible to ensure that unpredictable external factors such as magnetic fields or serious
mains power disturbances will not impair its operation in specific situations.
For this reason, a number of special functions are grouped together in two video pages which
can only be accessed using a special procedure to be used when the GM 400 is switched on.
8.1 FACTORY SETTINGS
To access the GM 400 multieffects unit initialization procedure, switch on the device keeping
the EDIT and ENTER/WRITE keys simultaneously.
The service video page will offer the following functions:
CLR VARS (clears the working variables): to be used only if the system becomes blocked or
in case of accidental loss of data (PANIC). The basic values of a number of parameters of the
control software will be restored if the contents of the memory have been contaminated due to
errors of any kind. This operation does not modify the contents of the data saved by the user
in the patches.
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BANK TO CLEAR: causes the total loss of the contents of the patches memorized in the
selected bank. Restores the original conditions of the memory contents, recovering the
128 patches programmed in the factory and recopying them into one or more of the 3
banks selected with [Y].
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CAUTION !!: Only use if the machine cannot be restored to correct operation in any other
way
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8.2 DSP SELF-TEST
Pressing the EDIT key with the page described in the previous point on the display, gives
access to the Self-Test page. This page shows the result of a self-test performed by the GM
400 on the operation of its own digital signal processors, responsible for generating the
effects.
CAUTION !!:
this section of the control software should only be used by the staff of
authorized Oberheim service centres .