Panasonic SA-HT650P Service Manual page 76

- If a warped disc is used, adjustment would result incorrectly, and
other discs could not be used.
15.1.4. Optical Adjustment (Optical Pickup Tilt Adjustment)
Measurement point
Measuring equipment
None (LCD display of the player is used.)
15.1.4.1. Adjustment Procedure
1. While the player is stopped and no disc is inserted, select the
DVD function. Press and hold down the button on the player and
the number button, "5" on theremote controller unit.
2. Check that "J_xxx_yyy_zz" is appearing on the display.
For your information:
The values, "yyy" and "zz" are not associated to jitter value. / "yyy" indicates the frequency of
error occurrence. / "zz" indicates the focus drive value.
Note:
Jitter value appears on the display.
3. Replay T01 (inner track) of the test disc.
4. Adjust till the jitter value becomes minimum, using a tangential
adjustment screw. <Fig. 15-1>
5. Replay T43 (outer track) of the test disc.
6. Adjust till the jitter value becomes minimum, using a tilt
adjustment screw 1. <Fig. 15-1>
7. Replay T43 (outer track ) of the test disc.
8. Adjust till the jitter value becomes minimum, using a tilt
adjustment screw 2.<Fig. 15-1>
9. Adjust till the jitter value becomes, using the tilt adjustment
screws 1 and 2 alternatively.
Adjustment point
Tangential adjustment
screw / Tilt adjustment
screw
Fig. 15-1
Mode
T1 (inner track) replay /
T43 (outer track) replay
Adjustment value
Adjust that jitter value becomes minimum.
Disc
DVDT-S15 or DVDT