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This is my JD-800. The DAC board is at left. |
JD-800 and JD-990 DAC Calibration
Calibration for the JDs Digital to Analog Converters (DAC).
Just to remember, the DAC is that circuit where the digital signal is converted to analog. This is a very important part of the JD, because the quality of the result it does.
From
Analog.com:
In principle, you give a digital input to a DAC and it
provides an accurate output voltage. In reality, the accuracy of the output
voltage is subject to gain and offset errors from the DAC and other
components in the signal chain. The system designer must compensate for
these errors in order to get an accurate output voltage. This can be
implemented with external components and post-manufacture trimming. Digital
calibration modifies the input sent to the DAC such that the gain and offset
errors are taken into account thus removing the need for external components
and trimming.
Thanks to
Don Solaris, a JD-Master for posting this at his site. Click the links to be redirected.
If you already does not have the JD Service Manual get it here:
JD Manuals.
Note: Please, if the links does not work, notify me at comments to update it.
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