36
DVP-CX995V
6-4. DISC DETECT SENSOR ADJUSTMENT
Be sure to perform this adjustment after sensor adjustment in
MECHANICAL ADJUSTMENT. (See page 32)
Connection:
Waveform:
1. Connect the oscilloscope to pins
1
,
2
and
3
of CN301 on
the MB board.
2. Check that no discs are loaded in the unit.
3. Perform from step 1 to step 5 in Pop Up Mechanism
Adjustment. (See page 32)
4. Press the
[PAUSE]
key, then the table starts to rotate in the
clockwise direction.
5. Turn the RV301 on MB board and adjust so that the H portion
A of DSENS_OUT waveform is twice the width of the H
portion B of HH_OUT waveform.
Adjustment Location: MB board
6. Loosen the fixing screw, move the mounting board (SENSOR),
and secure the mounting board (SENSOR) at the point the H
portion of the HH_OUT waveform comes the center of the H
portion of the DSENS_OUT waveform.
DSENS_OUT
HH_OUT
CH1
CH2
DSENS_OUT
HH_OUT
CH1
CH2
A
A = 2
×
B
B
S tight, screw
(PTTWH3
×
6)
D. SENS OUT board
DSENS_OUT
HH_OUT
CH1
CH2
Should be at the center
DSENS_OUT: Pin
3
GND: Pin
2
HH_OUT: Pin
1
oscilloscope
CH1 CH2
DSENS_OUT
GND
HH_OUT
MB board
CN301