Panasonic SA-HT530GCP, Service Manual

Page: 45 / 101

19.1.4.1. 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 the remote 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. 19-1>
5. Replay T43 (outer track) of the test disc.
6. Adjust till the jitter value becomes minimum, using a tilt
adjustment screw 1. <Fig. 19-1>
7. Replay T43 (outer track ) of the test disc.
8. Adjust till the jitter value becomes minimum, using a tilt
adjustment screw 2.<Fig. 19-1>
9. Adjust till the jitter value becomes, using the tilt adjustment
screws 1 and 2 alternatively.
Fig. 19-1
19.1.4.2. Tips
1. Apply the tangential adjustment first and then the tilt
adjustment.
2. Repeat the adjustment a couple of times to find the
optimum point.
3. Complete with the tilt adjustment.
19.1.4.3. Check After Adjustment
Replay test discs or other commercial discs in order to confirm
that no picture deterioration or sound skipping is detected in the
inner, middle, and outer tracks. After this, fasten each
adjustment screw securely using a screw lock.
19.1.4.4. Procedure for Screw Lock
1. After adjustment, remove the top cover, clamper base, disc
tray and then traverse unit.
2. Place the traverse unit upside down, and fasten the
adjustment screws with a screw lock. <Fig. 19-2>
3. After fastening the screws, assemble in order of the
traverse unit, disc tray, clamper base, and then top cover.
Fig. 19-2
19.1.4. Optical Adjustment (Optical Pickup Tilt Adjustment)
Measurement point Adjustment point Mode Disc
Tangential adjustment screw
Tilt adjustment screw T1 (inner track) replay
T43 (outer track) replay DVDT-S20 [SPG]
Measuring equipment Adjustment value
None (LCD display of the player is used.) Adjust that jitter value becomes minimum.
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SA-HT530GCP