REPLACEMENT PROCEDURE
8.1. SELF-DIAGNOSIS
The optical pickup self-diagnosis function and tilt adjustment check function have been
included in this unit. When repairing, use the following procedure for effective Self-diagnosis
and tilt adjustment. Be sure to use the self-diagnosis function before replacing the 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.)
8.2. CAUTIONS TO BE USED BEFORE REPLACING THE OPTICAL
PICKUP UNIT AND SPINDLE MOTOR ASSEMBLY
27
PDF created with pdfFactory Pro trial version
