Table of Contents
Advertisement
8.11. VCR Mechanism Adjustment Procedures
Refer to the Service Manual for R4-Mechanism Chassis. (Order No. VRD0202010C8)
9. SELF-DIAGNOSIS FUNCTION AND SERVICE
MODES
9.1. Optical Pickup Breakdown 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 functionbefore 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 70 (DVD), 55(CD).
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.)
48
Advertisement
Table of Contents
