Panasonic SA-HT530EB Service Manual page 22

This unit is equipped with the optical pickup self-diagnosis function and the tilt adjustment check
function. Follow the procedure described below during repair in order to perform self-diagnosis
and tilt adjustment effectively. Especially when "NO DISC" is displayed, be sure to apply the self-
diagnosis function before replacing with an optical pickup. Replacement of optical pickup
generally requires when the present value of laser drive exceeds 70 (DVD) or 55 (CD).
Note:
Start diagnosis within three minutes after turning on the power (as diagnosis fails when the unit
becomes warm).
14.2. Cautions to Be Taken During Replacement of Optical Pickup
and Spindle Motor
Before replacing the optical pickup and spindle motor, check the total usage time respectively.
Follow the checking method described as below.
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