10.4.1.1. Adjustment procedure
1. While pressing PAUSE and OPEN/CLOSE buttons on the
main unit, press "5" on the remote control unit.
2. Confirm that "J_xxx_yyy_zz" is shown on the front display.
For your information:
"yyy" and "zz" shown to the right have nothing to do with
the jitter value. "yyy" is the error counter, while "zz" is
the focus drive value.
Note:
Jitter value appears on the front display.
3. Play test disc T01 (inner periphery).
4. Adjust tangential adjustment screw so that the jitter value is
minimized.
5. Play test disc T43 (outer periphery).
6. Adjust tilt adjustment screw 1 so that the jitter value is
minimized.
7. Play test disc T43 (outer periphery).
8. Adjust tilt adjustment screw 2 so that the jitter value is
minimized.
9. Repeat adjusting tilt adjustment screws 1 and 2 alternately
until the jitter value is minimized.
10.4.1.2. Important points
1. Make tangential adjustment first, and then make tilt
adjustment.
2. Repeat adjusting two or three times to find the optimum
point.
3. Finish the procedure with tilt adjustment.
Jitter value depends on the model:
1.
If the jitter value changes like B, the optimum point is easy to
find.
2.
If the jitter value changes like A, set the optimum point near the
middle.
10.4.1.3. Check after adjustment
Play test disc or any other disc to make sure there is no picture
degradation in the inner, middle and outer peripheries, and no
audio skipping. After adjustment is finished, lock each
adjustment screw in position using screw lock.
10.4.1.4. Procedure for screw lock
1. After adjustment, remove top cover, tray, clamper base and
traverse unit in this sequence.
2. Lay the traverse unit upside down, and fix adjustment screw
with screw lock.
3. After fixing, reassemble traverse unit, clamper base, tray
and top cover.
10.4. Optical adjustment
10.4.1. Optical pickup tilt adjustment
Measurement point
Adjustment point
Mode
Disc
Tangential adjustment screw
Tilt adjustment screw
T01 (inner periphery) play
T43 (outer periphery) play
DVDR-S15 or DVDT-S01
Measuring equipment
Adjustment value
None (Main unit display for servicing is used.)
Adjust to the minimum jitter value.
31
DVD-S35E / DVD-S35EB / DVD-S35EG / DVD-S31EG
Summary of Contents for DVD-S31EG
Page 18: ...18 DVD S35E DVD S35EB DVD S35EG DVD S31EG ...
Page 51: ...15 PRINT CIRCUIT BOARD 15 1 Decoder PCB Unit DVD S35E DVD S35EB DVD S35EG DVD S31EG 51 ...
Page 52: ...15 2 Power PCB Unit DVD S35E DVD S35EB DVD S35EG DVD S31EG 52 ...
Page 53: ...15 3 TERMINAL PCB F G E D C B A 5 4 3 2 1 DVD S35E DVD S35EB DVD S35EG DVD S31EG 53 ...
Page 54: ...15 4 Front PCB Unit DVD S35E DVD S35EB DVD S35EG DVD S31EG 54 ...
Page 56: ...16 2 Mechanism Section Exploded View 56 DVD S35E DVD S35EB DVD S35EG DVD S31EG ...
Page 57: ...16 3 Packing Accessories Section Exploded View 57 DVD S35E DVD S35EB DVD S35EG DVD S31EG ...