Product specifications
DC10 E, DC20 E
SERVICE HINTS
10
(3) Self-recording error rate check (“SERVICE MODE / ADJUSTMETN”, P. 37)
Using a new DVD-RW disk (Commercially available), check an error rate during self-recording playback.
Disc to be used : Hitachi’s Maxell DVD-RW of 8 cm (If the procurement is difficult in an oversea location, SONY’s
DVD-RW of 8 cm is allowed to be used.)
Recording mode : VIDEO mode
Recording mode : SP mode (Recommendation)
Recording time : Approx. 10 to 30 sec.
Recording position : Not specifically designated. Write the record as a postscript without initializing.
Specified range of error rate : 8.0 × 10
-3
1) Cleaning of pickup lens (1)
Open the Disc Cover and clean the pickup lens surface with a an air blower that is commercially available. After cleaning, check
the error rate again.
* Do not use an air blower of spray-can type because blowing power is too strong.
* Do not touch the lens with bare hand.
2) Cleaning of pickup lens (2)
If an error rate is out of the specified range, clean the pickup lens surface using Lens-cleaning paper and alcohol.
Using forceps whose ends are wound with lens-cleaning paper that is wet with alcohol, wipe the lens surface by moving the
forceps once in a single direction.
After cleaning, check the error rate again.
* Be sure to use ethyl alcohol (commercially available product). Never use other solvents.
* If you have spilled alcohol by mistake onto the cover, do not rub it for removal as its coating will come off. For
cleaning the surface of the cover, wipe it with a dry cloth without using alcohol.
Fig. 7
Cover
Lens-cleaning
paper may catch
on the edge section.
Material of
lens protection
Do not rub it
strong to prevent
it from coming off.
Coil wiring material
Coil wiring material
Coil wiring material
Lens-cleaning
paper may catch
on the edge section.
Suspension
Do not touch it directly to
prevent it from being deformed.
Suspension
Do not touch it directly to
prevent it from being deformed.
Outline Description of Pickup Unit
Magnet
Magnet
Tweezers
Do not use forceps made of magnetic
material. Otherwise, the magnet may
attract the tweezers to cause the
suspension to be deformed or the lens
to be damaged.
Lens-cleaning paper
Wipe once