Manual Control 2; Manual Control 3; Manual Adjust 1 - Sony DVP-S300 Service Manual

6-6-4. Manual Control 2

Manual Control 2
SA.000000 SI.00
0. Pause off
1. FCS. Srch off
3. Tilt_H off
DVD SL 12cm
Figure 14
Eject/Load are not used usually, because they can be done with
the Eject button.
0. Pause : Pause is made by executing track jump once per
revolution.
1. FCS.Srch : The focus drive system is checked by applying
same voltage to the focus drive as that in focus
search.
3. Tilt H : Increase tilt gain.
4. Eject : Eject
5. Load : Loading

6-6-5. Manual Control 3

Manual Control 3
SA.000000 SI.00
0. FWD 32TJ
1. RVS 32TJ
2. FWD 500TJ
3. RVS 500TJ
4. FWD 10KTJ
5. RVS 10KTJ
DVD SL 12cm
Figure 15
On this screen, track jump, etc. are executed.
Confirm the sector information (SI) to check the DVD_DL layer
jump direction. Even SI means layer 0, or odd SI means layer 1.
When 1TJ or 32TJ is executed, the tracking is turned on, but the
sled becomes just like initialization.
Also, after executing each jump except 1TJ (and FJ1, 2), the CLVA
mode is set.
The optical system will be damaged if make a jump in wrong di-
rection FJ0, FJ1, LJ0 and LJ1.
0. FWD 32TJ : Jump 32 track forward (N track jump).
1. RVS 32TJ : Jump 32 track reversely (N track jump).
2. FWD 500TJ : Jump 500 tracks forward (fine search).
3. RVS 500TJ : Jump 500 tracks reversely (fine search).
4. FWD 10KTJ : Jump 10k tracks forward (direct search).
5. RVS 10KTJ : Jump 10k tracks reversely (direct search).
6. FJ0→1 : After layer jump L0→L1, tracking loop does not
turn on.
7. FJ1→0 : After layer jump L1→L0, tracking loop does not
turn on.
8. LJ0→1 : After layer jump L0→L1, tracking loop turns
on.
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4. Eject
5. Load
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6. FT0→1
7. FJ1→0
8. LJ0→1
9. LJ1→0
→. FWD 1TJ
←. RVS 1TJ
6-14
9. LJ1→0 : After layer jump L1→L0, tracking loop turns
on.
→. FWD 1TJ
: Jump one track forward.
←. RVS 1TJ
: Jump one track reversely.

6-6-6. Manual Adjust 1

Manual Adjust 1
SA.000000 SI.CD
0. TRK. Off set
1. TRK. Off set 2 (DVD)
2. TRK. Gain 2 (CD)
3. Focus Gain
4. TRK. Gain
DVDSL 12cm
Figure 16
On this screen, manual adjustment can be made where jitter mea-
surement is not executed.
0. TRK Offset 1 : Adjust tracking offset.
1. TRK. Offset 2 (DVD) : Adjust DVD tracking offset (TO SSI).
Adjusting range is (A1 – AF) with
A1 – A7: +25 to +175 mV,
A8 – AF: 0 to –175mV.
2. TRK Gain 2 (CD) : Adjust simple AGC of CD.
Adjusting range is (88 – C8) with lower
4 bits fixed.
3. Focus Gain : Adjust focus gain.
4. Tracking Gain 2 : Adjust tracking gain.
1
TRK Off set : In the tracking offset adjustment for DVD, based
on the peak and bottom data measured by DSP, the
SSL33P3720A cansels the offset roughly, then the
DSP adjusts it finely.
Here, finely adjusted value is set. As adjustment is
made by DSP only.
DC component of tracking traverse does not
change.
For the CD, only this set value changes.
2
TRK Gain : In the tracking gain adjustment for CD, based on
the peak and bottom data measured by DSP, the
CXA2556 on the sets simple AGC to 5 steps of
–3.2, –1.6, 0, +1.6, +3.2 dB (Auto Tracking Off-
set), then the DSP makes setting (Auto Tracking
Gain). Here, DSP setting can be made. In the case
of DVD, only DSP setting is executed.
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