73
DVL-919
6
Tracking Servo Loop Gain Adjustment
Oscilloscope
X-Y mode
X:
Y: 100mV/div.
DC mode
5
Focus Servo Loop Gain Adjustment
•
Test mode
•
LD test disc
•
Play standby
6
FOCUS
ERR
7
F IN
CN802
8
GND
•
Test mode
TILT
TRKG
•
Still the LD test disc at #115.
Oscilloscope
X-Y mode
X:
Y: 50mV/div.
DC mode
9
TRK ERR
CLDM
ASSY
Probe (10:1)
CN802
CLDM ASSY
Player
CH1
CH2
(X)
(Y)
START
CLDM ASSY
VR604
Probe (10:1)
CN802
CLDM ASSY
Player
CH1
CH2
(X)
(Y)
START
CLDM
ASSY
VR603
→
ON
→
ON
4.8Vp-p
±
0.5V
1.8Vp-p
±
0.2V