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
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Summary of Contents for NV-VP23-33
Page 13: ...C Stop unloading just before unloading would be completed D Then the tape becomes slack 13 ...
Page 22: ...7 9 MAIN PCB UNIT 1 Unscrew the Screws 2 Release the Connectors 3 Remove the Main PCB Unit 22 ...
Page 39: ...10 3 FRONT HOLDER 1 Remove the Front Holder 10 4 CLAMP PLATE UNIT 39 ...
Page 56: ...12 ABBREVIATIONS 56 ...
Page 64: ...20 1 VCR CHASSIS PARTS SECTION 20 2 DVD CHASSIS PARTS SECTION 64 ...
Page 65: ...20 3 CASING PARTS SECTION 65 ...
Page 66: ...66 ...
Page 67: ...20 4 PACKING PARTS SECTION 67 ...