Nuoptix Stereo Optical Recording System, Руководство пользователя

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DELAY CALIBRATION
Delay calibration is factory set and should never need adjustment but if it
should the following procedure should be used. Rotate inside clip ICLP (R11)
and outside clip OCLP (R40) fully clockwise. This removes the clipper operation
for the next part of the procedure. Adjust DEL IN (R9) for 0 dbm at TP5. This
adjusts the signal level to the input of the delay circuit. With a frequency counter
at TP6 adjust CLK (R52) for 150 kHz. The clock frequency determines the audio
delay. Adjusting to 150 kHz provides for 25mS of audio delay. With the scope
probe attached to TP7 adjust BAL (R55) so that the two sampled 400Hz
waveforms lay directly on top of one another and appear as a single waveform.
Increase the input level to 130% on the panel meter. Adjust BIAS (R31) to yield
minimum distortion at TP8.
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