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DVL-K88
Focus Servo Loop Gain Adjustment
5
• Test mode
• LD test disc
• Play standby
START
CLDM ASSY
FOCUS
6
ERR
CN802
Tracking Servo Loop Gain Adjustment
6
• Test mode
→ ON
TILT
→ ON
TRKG
• Still the LD test disc at #115.
START
CLDM ASSY
9
TRK ERR
CN802
70
CLDM ASSY
7
F IN
8
GND
CN802
Player
VR603
Player
CLDM
ASSY
VR604
Probe (10:1)
CLDM
ASSY
CH1
Probe (10:1)
4.8Vp-p
± 0.5V
CH1
CH2
(X)
(Y)
Oscilloscope
X-Y mode
X:
Y: 100mV/div.
DC mode
1.8Vp-p
± 0.2V
CH2
(X)
(Y)
Oscilloscope
X-Y mode
X:
Y: 50mV/div.
DC mode
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