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12 Adjustment Procedure (DVD
Section)
12.1 Required Tools and Equipment
Purpose of Use
Tools/Equipment
DVD test disc
Tilt adjustment
TORX screw driver (T6) Available on sales route. (T6) or RFKZ0185
Hanarl
Others
Grease
Drysurf
CD test disc
Checking
VCD test disc
Recovery disc
12.2 Necessity of Adjustment
12.2.1 Necessity of Optical Adjustment
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Before starting optical system adjustment, be sure to wear proper protection gear against static electricity.
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Optical adjustment (optical pickup tilt adjustment) is required after following parts are replaced:
1. Optical pickup
2. Spindle motor assembly
3. Optical pickup peripherals such as a rail, etc.
Note:
Optical adjustment is not necessary after replacement of other parts inside traverse, however, may require when picture
deterioration is detected. Optical adjustment cannot be applied to the inside of optical pickup. When a traverse unit is
replaced, the adjustment is not necessary.
12.2.2 Necessity of Electrical Adjustment
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Follow the procedure for adjustment.
12.3 Storing and Handling Test Discs
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Surface precision is vital for DVD test discs. Be sure to store and handle them carefully.
1. Do not leave the discs uncovered on the work desk or other places after use.
2. Handle the discs carefully to prevent scratches. Put each disc in its case and place it in the standing position. Store
the discs in a cool place and avoid direct sunlight or air conditioner.
3. Accurate adjustment cannot be expected with a disc warped against a flat surface. Obtain a new test disc for optical
adjustment.
4. If a warped disc is used, adjustment would result incorrectly, and other discs could not be used.
12.4 Optical Adjustment (Optical Pickup Tilt
Adjustment)
Measurement point
Tangential adjustment screw
DVDT-S15 or DVDT-S01
VFK1784
RFKXPG641
RFKXGUD24
PVCD-K06 and any commercially available disc
PVCD-K06 and any commercially available disc
RFKZD03R005
Adjustment point
T1 (inner track) play
Model/Product Number
Mode
Disc
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