Sony BDP-CX7000ES Service Manual page 29

Holder (table sensor 400)
S tight, screw
(PTTWH3 6)
400D table assy
4. DISC DETECT SENSOR ADJUSTMENT
This step is following "3. TABLE SENSOR ADJUSTMENT".
This adjustment is using a long driver from the hole of the chassis
(do not detach the chassis).
Procedure:
1. The connection of the oscilloscope is confi rmed.
2. It is confi rmed that there is no disk in the table, press the [
button, and the table is rotated.
3. It is confi rmed that the waveforms like Fig. 7.
4. The screw (PTTWH3X6) that is the fi xation of the bracket
(sensor 400) is loosened (the screw is not detached).
5. The bracket is moved right and left (refer to Fig. 8). Wave-
forms relative position changes, and adjusted that waveforms
position becomes a center (refer to Fig. 9).
6. The screw of step 4 is fi xed in the state of step 5.
CH2
CH1
Turn
Fig. 6
CHK_HHOUT
CHK_DSENS
Fig. 7
Holder (table sensor 400)
S tight, screw
(PTTWH3 6)
400D table assy
CH2
CH1
5. SENSOR LEVEL ADJUSTMENT
This step is following "4. DISC DETECT SENSOR ADJUST-
MENT".
Procedure:
1. RV1001 on the IMD (ES) board (refer to page 26 "1-3. Wiring
for adjustment") is adjusted so that the width of the CHK_
] DSENS signal may increase to twice that of CHK_HHOUT
X
signal (refer to Fig. 10).
2. Press the [ ] button, the adjustment is end.
x
CH2
CH1
BDP-CX7000ES
Rotate
Fig. 8
CHK_HHOUT
CHK_DSENS
Should be at the center.
Fig. 9
A
CHK_DSENS
B
CHK_HHOUT
A = 2 B
Fig. 10
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