13.4.1.1. Adjustment procedure
1. While pressing STOP button on the main unit, press "5" on
the remote control unit.
2. Confirm that "J_xxx/yyy_zz" (display1/display2) 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 T30 (center periphery).
4. Adjust tangential adjustment screw so that the jitter value is
minimized.
5. Play test disc T30 (center periphery).
6. Adjust tilt adjustment screw 1 so that the jitter value is
minimized.
7. Play test disc T30 (center 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.
13.4.1.2. 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.
13.4.1.3. 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.
13.4.1.4. 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.
13.4. Optical adjustment
13.4.1. Optical pickup tilt adjustment
Measurement point
Adjustment point
Mode
Disc
Tangential adjustment screw
Tilt adjustment screw
T01 (inner periphery) play
T30 (center periphery)
T43 (outer periphery) play
DVDT-S20 [SPG]
Measuring equipment
Adjustment value
None (Main unit display for servicing is used.)
Adjust to the minimum jitter value.
60
SA-PT550E / SA-PT550EB / SA-PT550EG
Summary of Contents for SA-PT550E
Page 10: ...3 Precaution of Laser Diode 10 SA PT550E SA PT550EB SA PT550EG ...
Page 13: ...13 SA PT550E SA PT550EB SA PT550EG ...
Page 40: ...10 2 Main Components and P C B Locations 40 SA PT550E SA PT550EB SA PT550EG ...
Page 58: ...58 SA PT550E SA PT550EB SA PT550EG ...
Page 72: ...SA PT550E SA PT550EB SA PT550EG 72 ...
Page 82: ...82 SA PT550E SA PT550EB SA PT550EG ...
Page 100: ...SA PT550E SA PT550EB SA PT550EG 100 ...
Page 114: ...25 Exploded Views 114 SA PT550E SA PT550EB SA PT550EG ...
Page 115: ...25 1 Cabinet Parts Location SA PT550E SA PT550EB SA PT550EG 115 ...
Page 116: ...SA PT550E SA PT550EB SA PT550EG 116 ...
Page 117: ...25 2 Packaging SA PT550E SA PT550EB SA PT550EG 117 ...
