Technics SL-DV290EE, Руководство по обслуживанию

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adjustment.Be sure to use the self-diagnosis functionbeforereplacingthe optical pickup when
"NO DISC" is displayed. As a guideline, you should replace the optical pickup when the value of
the laser drive current is more than 55.
Note:
Press the power button to turn on the power, and check the value within three minutes before the
unit warms up. (Otherwise, the result will be incorrect.)
6.2. Cautions to Be Used Before Replacing the Optical Pickup Unit
and Spindle Motor Assembly
Before replacing the optical pickup unit and spindle motor assembly, check the total using hours
for each of them. The checking method is as follows:
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