Optical Pick-Up Breakdown Diagnosis - Panasonic SA-VK660GC Service Manual

SA-VK660GC / SA-VK660GS / SA-VK660GCS / SA-VK660GCT
9.3.

Optical Pick-up Breakdown Diagnosis

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 23 (DVD) or 34 (CD).
Note:
Start diagnosis within three minutes after turning on the power (as diagnosis fails when the unit becomes warm).
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