Purpose of
Use
Tools/Equipment Model/Product Number
Tilt
adjustment
DVD test disc DVDT-S15 or DVDT-S01
Hexagonal wrench SZZP1101C
Inspection Two extension cables (module circuit board -
mother circuit board)
JGS0116
Others Screw lock RZZ0L01
Grease JGS0091 JGS0092
Checking CD test disc PVCD-K06 and any commercially
available disc
VCD test disc PVCD-K06 and any commercially
available disc
Recovery disc RFKZD5TR006 or RFKZD03R004
12.2. Necessity of Adjustment
12.2.1. Necessity of Optical Adjustment
- Before starting optical system adjustment, be sure to wear proper
protection gear against static electricity.
- 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
- Follow the procedure for adjustment.
12.3. Storing and Handling Test Discs
- 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.
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